Clang.cpp source code [clang_source_code/lib/Driver/ToolChains/Clang.cpp]

1	//===-- Clang.cpp - Clang+LLVM ToolChain Implementations --------- C++ --===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8
9	#include "Clang.h"
10	#include "Arch/AArch64.h"
11	#include "Arch/ARM.h"
12	#include "Arch/Mips.h"
13	#include "Arch/PPC.h"
14	#include "Arch/RISCV.h"
15	#include "Arch/Sparc.h"
16	#include "Arch/SystemZ.h"
17	#include "Arch/X86.h"
18	#include "AMDGPU.h"
19	#include "CommonArgs.h"
20	#include "Hexagon.h"
21	#include "MSP430.h"
22	#include "InputInfo.h"
23	#include "PS4CPU.h"
24	#include "clang/Basic/CharInfo.h"
25	#include "clang/Basic/LangOptions.h"
26	#include "clang/Basic/ObjCRuntime.h"
27	#include "clang/Basic/Version.h"
28	#include "clang/Driver/Distro.h"
29	#include "clang/Driver/DriverDiagnostic.h"
30	#include "clang/Driver/Options.h"
31	#include "clang/Driver/SanitizerArgs.h"
32	#include "clang/Driver/XRayArgs.h"
33	#include "llvm/ADT/StringExtras.h"
34	#include "llvm/Config/llvm-config.h"
35	#include "llvm/Option/ArgList.h"
36	#include "llvm/Support/CodeGen.h"
37	#include "llvm/Support/Compression.h"
38	#include "llvm/Support/FileSystem.h"
39	#include "llvm/Support/Path.h"
40	#include "llvm/Support/Process.h"
41	#include "llvm/Support/TargetParser.h"
42	#include "llvm/Support/YAMLParser.h"
43
44	#ifdef LLVM_ON_UNIX
45	#include <unistd.h> // For getuid().
46	#endif
47
48	using namespace clang::driver;
49	using namespace clang::driver::tools;
50	using namespace clang;
51	using namespace llvm::opt;
52
53	static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) {
54	if (Arg *A =
55	Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) {
56	if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) &&
57	!Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) {
58	D.Diag(clang::diag::err_drv_argument_only_allowed_with)
59	<< A->getBaseArg().getAsString(Args)
60	<< (D.IsCLMode() ? "/E, /P or /EP" : "-E");
61	}
62	}
63	}
64
65	static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) {
66	// In gcc, only ARM checks this, but it seems reasonable to check universally.
67	if (Args.hasArg(options::OPT_static))
68	if (const Arg *A =
69	Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic))
70	D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args)
71	<< "-static";
72	}
73
74	// Add backslashes to escape spaces and other backslashes.
75	// This is used for the space-separated argument list specified with
76	// the -dwarf-debug-flags option.
77	static void EscapeSpacesAndBackslashes(const char *Arg,
78	SmallVectorImpl<char> &Res) {
79	for (; *Arg; ++Arg) {
80	switch (*Arg) {
81	default:
82	break;
83	case ' ':
84	case '\\':
85	Res.push_back('\\');
86	break;
87	}
88	Res.push_back(*Arg);
89	}
90	}
91
92	// Quote target names for inclusion in GNU Make dependency files.
93	// Only the characters '$', '#', ' ', '\t' are quoted.
94	static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) {
95	for (unsigned i = 0, e = Target.size(); i != e; ++i) {
96	switch (Target[i]) {
97	case ' ':
98	case '\t':
99	// Escape the preceding backslashes
100	for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j)
101	Res.push_back('\\');
102
103	// Escape the space/tab
104	Res.push_back('\\');
105	break;
106	case '$':
107	Res.push_back('$');
108	break;
109	case '#':
110	Res.push_back('\\');
111	break;
112	default:
113	break;
114	}
115
116	Res.push_back(Target[i]);
117	}
118	}
119
120	/// Apply \a Work on the current tool chain \a RegularToolChain and any other
121	/// offloading tool chain that is associated with the current action \a JA.
122	static void
123	forAllAssociatedToolChains(Compilation &C, const JobAction &JA,
124	const ToolChain &RegularToolChain,
125	llvm::function_ref<void(const ToolChain &)> Work) {
126	// Apply Work on the current/regular tool chain.
127	Work(RegularToolChain);
128
129	// Apply Work on all the offloading tool chains associated with the current
130	// action.
131	if (JA.isHostOffloading(Action::OFK_Cuda))
132	Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>());
133	else if (JA.isDeviceOffloading(Action::OFK_Cuda))
134	Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
135	else if (JA.isHostOffloading(Action::OFK_HIP))
136	Work(*C.getSingleOffloadToolChain<Action::OFK_HIP>());
137	else if (JA.isDeviceOffloading(Action::OFK_HIP))
138	Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
139
140	if (JA.isHostOffloading(Action::OFK_OpenMP)) {
141	auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>();
142	for (auto II = TCs.first, IE = TCs.second; II != IE; ++II)
143	Work(*II->second);
144	} else if (JA.isDeviceOffloading(Action::OFK_OpenMP))
145	Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
146
147	//
148	// TODO: Add support for other offloading programming models here.
149	//
150	}
151
152	/// This is a helper function for validating the optional refinement step
153	/// parameter in reciprocal argument strings. Return false if there is an error
154	/// parsing the refinement step. Otherwise, return true and set the Position
155	/// of the refinement step in the input string.
156	static bool getRefinementStep(StringRef In, const Driver &D,
157	const Arg &A, size_t &Position) {
158	const char RefinementStepToken = ':';
159	Position = In.find(RefinementStepToken);
160	if (Position != StringRef::npos) {
161	StringRef Option = A.getOption().getName();
162	StringRef RefStep = In.substr(Position + 1);
163	// Allow exactly one numeric character for the additional refinement
164	// step parameter. This is reasonable for all currently-supported
165	// operations and architectures because we would expect that a larger value
166	// of refinement steps would cause the estimate "optimization" to
167	// under-perform the native operation. Also, if the estimate does not
168	// converge quickly, it probably will not ever converge, so further
169	// refinement steps will not produce a better answer.
170	if (RefStep.size() != 1) {
171	D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
172	return false;
173	}
174	char RefStepChar = RefStep[0];
175	if (RefStepChar < '0' \|\| RefStepChar > '9') {
176	D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
177	return false;
178	}
179	}
180	return true;
181	}
182
183	/// The -mrecip flag requires processing of many optional parameters.
184	static void ParseMRecip(const Driver &D, const ArgList &Args,
185	ArgStringList &OutStrings) {
186	StringRef DisabledPrefixIn = "!";
187	StringRef DisabledPrefixOut = "!";
188	StringRef EnabledPrefixOut = "";
189	StringRef Out = "-mrecip=";
190
191	Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ);
192	if (!A)
193	return;
194
195	unsigned NumOptions = A->getNumValues();
196	if (NumOptions == 0) {
197	// No option is the same as "all".
198	OutStrings.push_back(Args.MakeArgString(Out + "all"));
199	return;
200	}
201
202	// Pass through "all", "none", or "default" with an optional refinement step.
203	if (NumOptions == 1) {
204	StringRef Val = A->getValue(0);
205	size_t RefStepLoc;
206	if (!getRefinementStep(Val, D, *A, RefStepLoc))
207	return;
208	StringRef ValBase = Val.slice(0, RefStepLoc);
209	if (ValBase == "all" \|\| ValBase == "none" \|\| ValBase == "default") {
210	OutStrings.push_back(Args.MakeArgString(Out + Val));
211	return;
212	}
213	}
214
215	// Each reciprocal type may be enabled or disabled individually.
216	// Check each input value for validity, concatenate them all back together,
217	// and pass through.
218
219	llvm::StringMap<bool> OptionStrings;
220	OptionStrings.insert(std::make_pair("divd", false));
221	OptionStrings.insert(std::make_pair("divf", false));
222	OptionStrings.insert(std::make_pair("vec-divd", false));
223	OptionStrings.insert(std::make_pair("vec-divf", false));
224	OptionStrings.insert(std::make_pair("sqrtd", false));
225	OptionStrings.insert(std::make_pair("sqrtf", false));
226	OptionStrings.insert(std::make_pair("vec-sqrtd", false));
227	OptionStrings.insert(std::make_pair("vec-sqrtf", false));
228
229	for (unsigned i = 0; i != NumOptions; ++i) {
230	StringRef Val = A->getValue(i);
231
232	bool IsDisabled = Val.startswith(DisabledPrefixIn);
233	// Ignore the disablement token for string matching.
234	if (IsDisabled)
235	Val = Val.substr(1);
236
237	size_t RefStep;
238	if (!getRefinementStep(Val, D, *A, RefStep))
239	return;
240
241	StringRef ValBase = Val.slice(0, RefStep);
242	llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase);
243	if (OptionIter == OptionStrings.end()) {
244	// Try again specifying float suffix.
245	OptionIter = OptionStrings.find(ValBase.str() + 'f');
246	if (OptionIter == OptionStrings.end()) {
247	// The input name did not match any known option string.
248	D.Diag(diag::err_drv_unknown_argument) << Val;
249	return;
250	}
251	// The option was specified without a float or double suffix.
252	// Make sure that the double entry was not already specified.
253	// The float entry will be checked below.
254	if (OptionStrings[ValBase.str() + 'd']) {
255	D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
256	return;
257	}
258	}
259
260	if (OptionIter->second == true) {
261	// Duplicate option specified.
262	D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
263	return;
264	}
265
266	// Mark the matched option as found. Do not allow duplicate specifiers.
267	OptionIter->second = true;
268
269	// If the precision was not specified, also mark the double entry as found.
270	if (ValBase.back() != 'f' && ValBase.back() != 'd')
271	OptionStrings[ValBase.str() + 'd'] = true;
272
273	// Build the output string.
274	StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut;
275	Out = Args.MakeArgString(Out + Prefix + Val);
276	if (i != NumOptions - 1)
277	Out = Args.MakeArgString(Out + ",");
278	}
279
280	OutStrings.push_back(Args.MakeArgString(Out));
281	}
282
283	/// The -mprefer-vector-width option accepts either a positive integer
284	/// or the string "none".
285	static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args,
286	ArgStringList &CmdArgs) {
287	Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ);
288	if (!A)
289	return;
290
291	StringRef Value = A->getValue();
292	if (Value == "none") {
293	CmdArgs.push_back("-mprefer-vector-width=none");
294	} else {
295	unsigned Width;
296	if (Value.getAsInteger(10, Width)) {
297	D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value;
298	return;
299	}
300	CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value));
301	}
302	}
303
304	static void getWebAssemblyTargetFeatures(const ArgList &Args,
305	std::vector<StringRef> &Features) {
306	handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group);
307	}
308
309	static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
310	const ArgList &Args, ArgStringList &CmdArgs,
311	bool ForAS) {
312	const Driver &D = TC.getDriver();
313	std::vector<StringRef> Features;
314	switch (Triple.getArch()) {
315	default:
316	break;
317	case llvm::Triple::mips:
318	case llvm::Triple::mipsel:
319	case llvm::Triple::mips64:
320	case llvm::Triple::mips64el:
321	mips::getMIPSTargetFeatures(D, Triple, Args, Features);
322	break;
323
324	case llvm::Triple::arm:
325	case llvm::Triple::armeb:
326	case llvm::Triple::thumb:
327	case llvm::Triple::thumbeb:
328	arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS);
329	break;
330
331	case llvm::Triple::ppc:
332	case llvm::Triple::ppc64:
333	case llvm::Triple::ppc64le:
334	ppc::getPPCTargetFeatures(D, Triple, Args, Features);
335	break;
336	case llvm::Triple::riscv32:
337	case llvm::Triple::riscv64:
338	riscv::getRISCVTargetFeatures(D, Args, Features);
339	break;
340	case llvm::Triple::systemz:
341	systemz::getSystemZTargetFeatures(Args, Features);
342	break;
343	case llvm::Triple::aarch64:
344	case llvm::Triple::aarch64_be:
345	aarch64::getAArch64TargetFeatures(D, Triple, Args, Features);
346	break;
347	case llvm::Triple::x86:
348	case llvm::Triple::x86_64:
349	x86::getX86TargetFeatures(D, Triple, Args, Features);
350	break;
351	case llvm::Triple::hexagon:
352	hexagon::getHexagonTargetFeatures(D, Args, Features);
353	break;
354	case llvm::Triple::wasm32:
355	case llvm::Triple::wasm64:
356	getWebAssemblyTargetFeatures(Args, Features);
357	break;
358	case llvm::Triple::sparc:
359	case llvm::Triple::sparcel:
360	case llvm::Triple::sparcv9:
361	sparc::getSparcTargetFeatures(D, Args, Features);
362	break;
363	case llvm::Triple::r600:
364	case llvm::Triple::amdgcn:
365	amdgpu::getAMDGPUTargetFeatures(D, Args, Features);
366	break;
367	case llvm::Triple::msp430:
368	msp430::getMSP430TargetFeatures(D, Args, Features);
369	}
370
371	// Find the last of each feature.
372	llvm::StringMap<unsigned> LastOpt;
373	for (unsigned I = 0, N = Features.size(); I < N; ++I) {
374	StringRef Name = Features[I];
375	assert(Name[0] == '-' \|\| Name[0] == '+');
376	LastOpt[Name.drop_front(1)] = I;
377	}
378
379	for (unsigned I = 0, N = Features.size(); I < N; ++I) {
380	// If this feature was overridden, ignore it.
381	StringRef Name = Features[I];
382	llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1));
383	assert(LastI != LastOpt.end());
384	unsigned Last = LastI->second;
385	if (Last != I)
386	continue;
387
388	CmdArgs.push_back("-target-feature");
389	CmdArgs.push_back(Name.data());
390	}
391	}
392
393	static bool
394	shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime,
395	const llvm::Triple &Triple) {
396	// We use the zero-cost exception tables for Objective-C if the non-fragile
397	// ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and
398	// later.
399	if (runtime.isNonFragile())
400	return true;
401
402	if (!Triple.isMacOSX())
403	return false;
404
405	return (!Triple.isMacOSXVersionLT(10, 5) &&
406	(Triple.getArch() == llvm::Triple::x86_64 \|\|
407	Triple.getArch() == llvm::Triple::arm));
408	}
409
410	/// Adds exception related arguments to the driver command arguments. There's a
411	/// master flag, -fexceptions and also language specific flags to enable/disable
412	/// C++ and Objective-C exceptions. This makes it possible to for example
413	/// disable C++ exceptions but enable Objective-C exceptions.
414	static void addExceptionArgs(const ArgList &Args, types::ID InputType,
415	const ToolChain &TC, bool KernelOrKext,
416	const ObjCRuntime &objcRuntime,
417	ArgStringList &CmdArgs) {
418	const llvm::Triple &Triple = TC.getTriple();
419
420	if (KernelOrKext) {
421	// -mkernel and -fapple-kext imply no exceptions, so claim exception related
422	// arguments now to avoid warnings about unused arguments.
423	Args.ClaimAllArgs(options::OPT_fexceptions);
424	Args.ClaimAllArgs(options::OPT_fno_exceptions);
425	Args.ClaimAllArgs(options::OPT_fobjc_exceptions);
426	Args.ClaimAllArgs(options::OPT_fno_objc_exceptions);
427	Args.ClaimAllArgs(options::OPT_fcxx_exceptions);
428	Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions);
429	return;
430	}
431
432	// See if the user explicitly enabled exceptions.
433	bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
434	false);
435
436	// Obj-C exceptions are enabled by default, regardless of -fexceptions. This
437	// is not necessarily sensible, but follows GCC.
438	if (types::isObjC(InputType) &&
439	Args.hasFlag(options::OPT_fobjc_exceptions,
440	options::OPT_fno_objc_exceptions, true)) {
441	CmdArgs.push_back("-fobjc-exceptions");
442
443	EH \|= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple);
444	}
445
446	if (types::isCXX(InputType)) {
447	// Disable C++ EH by default on XCore and PS4.
448	bool CXXExceptionsEnabled =
449	Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU();
450	Arg *ExceptionArg = Args.getLastArg(
451	options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions,
452	options::OPT_fexceptions, options::OPT_fno_exceptions);
453	if (ExceptionArg)
454	CXXExceptionsEnabled =
455	ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) \|\|
456	ExceptionArg->getOption().matches(options::OPT_fexceptions);
457
458	if (CXXExceptionsEnabled) {
459	CmdArgs.push_back("-fcxx-exceptions");
460
461	EH = true;
462	}
463	}
464
465	if (EH)
466	CmdArgs.push_back("-fexceptions");
467	}
468
469	static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) {
470	bool Default = true;
471	if (TC.getTriple().isOSDarwin()) {
472	// The native darwin assembler doesn't support the linker_option directives,
473	// so we disable them if we think the .s file will be passed to it.
474	Default = TC.useIntegratedAs();
475	}
476	return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink,
477	Default);
478	}
479
480	static bool ShouldDisableDwarfDirectory(const ArgList &Args,
481	const ToolChain &TC) {
482	bool UseDwarfDirectory =
483	Args.hasFlag(options::OPT_fdwarf_directory_asm,
484	options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs());
485	return !UseDwarfDirectory;
486	}
487
488	// Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases
489	// to the corresponding DebugInfoKind.
490	static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) {
491	(0) . __assert_fail ("A.getOption().matches(options..OPT_gN_Group) && \"Not a -g option that specifies a debug-info level\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 492, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(A.getOption().matches(options::OPT_gN_Group) &&
492	(0) . __assert_fail ("A.getOption().matches(options..OPT_gN_Group) && \"Not a -g option that specifies a debug-info level\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 492, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true"> "Not a -g option that specifies a debug-info level");
493	if (A.getOption().matches(options::OPT_g0) \|\|
494	A.getOption().matches(options::OPT_ggdb0))
495	return codegenoptions::NoDebugInfo;
496	if (A.getOption().matches(options::OPT_gline_tables_only) \|\|
497	A.getOption().matches(options::OPT_ggdb1))
498	return codegenoptions::DebugLineTablesOnly;
499	if (A.getOption().matches(options::OPT_gline_directives_only))
500	return codegenoptions::DebugDirectivesOnly;
501	return codegenoptions::LimitedDebugInfo;
502	}
503
504	static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) {
505	switch (Triple.getArch()){
506	default:
507	return false;
508	case llvm::Triple::arm:
509	case llvm::Triple::thumb:
510	// ARM Darwin targets require a frame pointer to be always present to aid
511	// offline debugging via backtraces.
512	return Triple.isOSDarwin();
513	}
514	}
515
516	static bool useFramePointerForTargetByDefault(const ArgList &Args,
517	const llvm::Triple &Triple) {
518	switch (Triple.getArch()) {
519	case llvm::Triple::xcore:
520	case llvm::Triple::wasm32:
521	case llvm::Triple::wasm64:
522	case llvm::Triple::msp430:
523	// XCore never wants frame pointers, regardless of OS.
524	// WebAssembly never wants frame pointers.
525	return false;
526	case llvm::Triple::riscv32:
527	case llvm::Triple::riscv64:
528	return !areOptimizationsEnabled(Args);
529	default:
530	break;
531	}
532
533	if (Triple.isOSNetBSD()) {
534	return !areOptimizationsEnabled(Args);
535	}
536
537	if (Triple.isOSLinux() \|\| Triple.getOS() == llvm::Triple::CloudABI \|\|
538	Triple.isOSHurd()) {
539	switch (Triple.getArch()) {
540	// Don't use a frame pointer on linux if optimizing for certain targets.
541	case llvm::Triple::mips64:
542	case llvm::Triple::mips64el:
543	case llvm::Triple::mips:
544	case llvm::Triple::mipsel:
545	case llvm::Triple::ppc:
546	case llvm::Triple::ppc64:
547	case llvm::Triple::ppc64le:
548	case llvm::Triple::systemz:
549	case llvm::Triple::x86:
550	case llvm::Triple::x86_64:
551	return !areOptimizationsEnabled(Args);
552	default:
553	return true;
554	}
555	}
556
557	if (Triple.isOSWindows()) {
558	switch (Triple.getArch()) {
559	case llvm::Triple::x86:
560	return !areOptimizationsEnabled(Args);
561	case llvm::Triple::x86_64:
562	return Triple.isOSBinFormatMachO();
563	case llvm::Triple::arm:
564	case llvm::Triple::thumb:
565	// Windows on ARM builds with FPO disabled to aid fast stack walking
566	return true;
567	default:
568	// All other supported Windows ISAs use xdata unwind information, so frame
569	// pointers are not generally useful.
570	return false;
571	}
572	}
573
574	return true;
575	}
576
577	static bool shouldUseFramePointer(const ArgList &Args,
578	const llvm::Triple &Triple) {
579	if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer,
580	options::OPT_fomit_frame_pointer))
581	return A->getOption().matches(options::OPT_fno_omit_frame_pointer) \|\|
582	mustUseNonLeafFramePointerForTarget(Triple);
583
584	if (Args.hasArg(options::OPT_pg))
585	return true;
586
587	return useFramePointerForTargetByDefault(Args, Triple);
588	}
589
590	static bool shouldUseLeafFramePointer(const ArgList &Args,
591	const llvm::Triple &Triple) {
592	if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer,
593	options::OPT_momit_leaf_frame_pointer))
594	return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer);
595
596	if (Args.hasArg(options::OPT_pg))
597	return true;
598
599	if (Triple.isPS4CPU())
600	return false;
601
602	return useFramePointerForTargetByDefault(Args, Triple);
603	}
604
605	/// Add a CC1 option to specify the debug compilation directory.
606	static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) {
607	SmallString<128> cwd;
608	if (!llvm::sys::fs::current_path(cwd)) {
609	CmdArgs.push_back("-fdebug-compilation-dir");
610	CmdArgs.push_back(Args.MakeArgString(cwd));
611	}
612	}
613
614	/// Add a CC1 and CC1AS option to specify the debug file path prefix map.
615	static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs) {
616	for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) {
617	StringRef Map = A->getValue();
618	if (Map.find('=') == StringRef::npos)
619	D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map;
620	else
621	CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map));
622	A->claim();
623	}
624	}
625
626	/// Vectorize at all optimization levels greater than 1 except for -Oz.
627	/// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled.
628	static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) {
629	if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
630	if (A->getOption().matches(options::OPT_O4) \|\|
631	A->getOption().matches(options::OPT_Ofast))
632	return true;
633
634	if (A->getOption().matches(options::OPT_O0))
635	return false;
636
637	(0) . __assert_fail ("A->getOption().matches(options..OPT_O) && \"Must have a -O flag\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 637, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag");
638
639	// Vectorize -Os.
640	StringRef S(A->getValue());
641	if (S == "s")
642	return true;
643
644	// Don't vectorize -Oz, unless it's the slp vectorizer.
645	if (S == "z")
646	return isSlpVec;
647
648	unsigned OptLevel = 0;
649	if (S.getAsInteger(10, OptLevel))
650	return false;
651
652	return OptLevel > 1;
653	}
654
655	return false;
656	}
657
658	/// Add -x lang to \p CmdArgs for \p Input.
659	static void addDashXForInput(const ArgList &Args, const InputInfo &Input,
660	ArgStringList &CmdArgs) {
661	// When using -verify-pch, we don't want to provide the type
662	// 'precompiled-header' if it was inferred from the file extension
663	if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH)
664	return;
665
666	CmdArgs.push_back("-x");
667	if (Args.hasArg(options::OPT_rewrite_objc))
668	CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX));
669	else {
670	// Map the driver type to the frontend type. This is mostly an identity
671	// mapping, except that the distinction between module interface units
672	// and other source files does not exist at the frontend layer.
673	const char *ClangType;
674	switch (Input.getType()) {
675	case types::TY_CXXModule:
676	ClangType = "c++";
677	break;
678	case types::TY_PP_CXXModule:
679	ClangType = "c++-cpp-output";
680	break;
681	default:
682	ClangType = types::getTypeName(Input.getType());
683	break;
684	}
685	CmdArgs.push_back(ClangType);
686	}
687	}
688
689	static void appendUserToPath(SmallVectorImpl<char> &Result) {
690	#ifdef LLVM_ON_UNIX
691	const char *Username = getenv("LOGNAME");
692	#else
693	const char *Username = getenv("USERNAME");
694	#endif
695	if (Username) {
696	// Validate that LoginName can be used in a path, and get its length.
697	size_t Len = 0;
698	for (const char P = Username; P; ++P, ++Len) {
699	if (!clang::isAlphanumeric(P) && P != '_') {
700	Username = nullptr;
701	break;
702	}
703	}
704
705	if (Username && Len > 0) {
706	Result.append(Username, Username + Len);
707	return;
708	}
709	}
710
711	// Fallback to user id.
712	#ifdef LLVM_ON_UNIX
713	std::string UID = llvm::utostr(getuid());
714	#else
715	// FIXME: Windows seems to have an 'SID' that might work.
716	std::string UID = "9999";
717	#endif
718	Result.append(UID.begin(), UID.end());
719	}
720
721	static void addPGOAndCoverageFlags(Compilation &C, const Driver &D,
722	const InputInfo &Output, const ArgList &Args,
723	ArgStringList &CmdArgs) {
724
725	auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate,
726	options::OPT_fprofile_generate_EQ,
727	options::OPT_fno_profile_generate);
728	if (PGOGenerateArg &&
729	PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate))
730	PGOGenerateArg = nullptr;
731
732	auto *CSPGOGenerateArg = Args.getLastArg(options::OPT_fcs_profile_generate,
733	options::OPT_fcs_profile_generate_EQ,
734	options::OPT_fno_profile_generate);
735	if (CSPGOGenerateArg &&
736	CSPGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate))
737	CSPGOGenerateArg = nullptr;
738
739	auto *ProfileGenerateArg = Args.getLastArg(
740	options::OPT_fprofile_instr_generate,
741	options::OPT_fprofile_instr_generate_EQ,
742	options::OPT_fno_profile_instr_generate);
743	if (ProfileGenerateArg &&
744	ProfileGenerateArg->getOption().matches(
745	options::OPT_fno_profile_instr_generate))
746	ProfileGenerateArg = nullptr;
747
748	if (PGOGenerateArg && ProfileGenerateArg)
749	D.Diag(diag::err_drv_argument_not_allowed_with)
750	<< PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling();
751
752	auto *ProfileUseArg = getLastProfileUseArg(Args);
753
754	if (PGOGenerateArg && ProfileUseArg)
755	D.Diag(diag::err_drv_argument_not_allowed_with)
756	<< ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling();
757
758	if (ProfileGenerateArg && ProfileUseArg)
759	D.Diag(diag::err_drv_argument_not_allowed_with)
760	<< ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling();
761
762	if (CSPGOGenerateArg && PGOGenerateArg)
763	D.Diag(diag::err_drv_argument_not_allowed_with)
764	<< CSPGOGenerateArg->getSpelling() << PGOGenerateArg->getSpelling();
765
766	if (ProfileGenerateArg) {
767	if (ProfileGenerateArg->getOption().matches(
768	options::OPT_fprofile_instr_generate_EQ))
769	CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") +
770	ProfileGenerateArg->getValue()));
771	// The default is to use Clang Instrumentation.
772	CmdArgs.push_back("-fprofile-instrument=clang");
773	}
774
775	Arg *PGOGenArg = nullptr;
776	if (PGOGenerateArg) {
777	assert(!CSPGOGenerateArg);
778	PGOGenArg = PGOGenerateArg;
779	CmdArgs.push_back("-fprofile-instrument=llvm");
780	}
781	if (CSPGOGenerateArg) {
782	assert(!PGOGenerateArg);
783	PGOGenArg = CSPGOGenerateArg;
784	CmdArgs.push_back("-fprofile-instrument=csllvm");
785	}
786	if (PGOGenArg) {
787	if (PGOGenArg->getOption().matches(
788	PGOGenerateArg ? options::OPT_fprofile_generate_EQ
789	: options::OPT_fcs_profile_generate_EQ)) {
790	SmallString<128> Path(PGOGenArg->getValue());
791	llvm::sys::path::append(Path, "default_%m.profraw");
792	CmdArgs.push_back(
793	Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path));
794	}
795	}
796
797	if (ProfileUseArg) {
798	if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ))
799	CmdArgs.push_back(Args.MakeArgString(
800	Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue()));
801	else if ((ProfileUseArg->getOption().matches(
802	options::OPT_fprofile_use_EQ) \|\|
803	ProfileUseArg->getOption().matches(
804	options::OPT_fprofile_instr_use))) {
805	SmallString<128> Path(
806	ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue());
807	if (Path.empty() \|\| llvm::sys::fs::is_directory(Path))
808	llvm::sys::path::append(Path, "default.profdata");
809	CmdArgs.push_back(
810	Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path));
811	}
812	}
813
814	if (Args.hasArg(options::OPT_ftest_coverage) \|\|
815	Args.hasArg(options::OPT_coverage))
816	CmdArgs.push_back("-femit-coverage-notes");
817	if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
818	false) \|\|
819	Args.hasArg(options::OPT_coverage))
820	CmdArgs.push_back("-femit-coverage-data");
821
822	if (Args.hasFlag(options::OPT_fcoverage_mapping,
823	options::OPT_fno_coverage_mapping, false)) {
824	if (!ProfileGenerateArg)
825	D.Diag(clang::diag::err_drv_argument_only_allowed_with)
826	<< "-fcoverage-mapping"
827	<< "-fprofile-instr-generate";
828
829	CmdArgs.push_back("-fcoverage-mapping");
830	}
831
832	if (Args.hasArg(options::OPT_fprofile_exclude_files_EQ)) {
833	auto *Arg = Args.getLastArg(options::OPT_fprofile_exclude_files_EQ);
834	if (!Args.hasArg(options::OPT_coverage))
835	D.Diag(clang::diag::err_drv_argument_only_allowed_with)
836	<< "-fprofile-exclude-files="
837	<< "--coverage";
838
839	StringRef v = Arg->getValue();
840	CmdArgs.push_back(
841	Args.MakeArgString(Twine("-fprofile-exclude-files=" + v)));
842	}
843
844	if (Args.hasArg(options::OPT_fprofile_filter_files_EQ)) {
845	auto *Arg = Args.getLastArg(options::OPT_fprofile_filter_files_EQ);
846	if (!Args.hasArg(options::OPT_coverage))
847	D.Diag(clang::diag::err_drv_argument_only_allowed_with)
848	<< "-fprofile-filter-files="
849	<< "--coverage";
850
851	StringRef v = Arg->getValue();
852	CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-filter-files=" + v)));
853	}
854
855	if (C.getArgs().hasArg(options::OPT_c) \|\|
856	C.getArgs().hasArg(options::OPT_S)) {
857	if (Output.isFilename()) {
858	CmdArgs.push_back("-coverage-notes-file");
859	SmallString<128> OutputFilename;
860	if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o))
861	OutputFilename = FinalOutput->getValue();
862	else
863	OutputFilename = llvm::sys::path::filename(Output.getBaseInput());
864	SmallString<128> CoverageFilename = OutputFilename;
865	if (llvm::sys::path::is_relative(CoverageFilename)) {
866	SmallString<128> Pwd;
867	if (!llvm::sys::fs::current_path(Pwd)) {
868	llvm::sys::path::append(Pwd, CoverageFilename);
869	CoverageFilename.swap(Pwd);
870	}
871	}
872	llvm::sys::path::replace_extension(CoverageFilename, "gcno");
873	CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
874
875	// Leave -fprofile-dir= an unused argument unless .gcda emission is
876	// enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider
877	// the flag used. There is no -fno-profile-dir, so the user has no
878	// targeted way to suppress the warning.
879	if (Args.hasArg(options::OPT_fprofile_arcs) \|\|
880	Args.hasArg(options::OPT_coverage)) {
881	CmdArgs.push_back("-coverage-data-file");
882	if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) {
883	CoverageFilename = FProfileDir->getValue();
884	llvm::sys::path::append(CoverageFilename, OutputFilename);
885	}
886	llvm::sys::path::replace_extension(CoverageFilename, "gcda");
887	CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
888	}
889	}
890	}
891	}
892
893	/// Check whether the given input tree contains any compilation actions.
894	static bool ContainsCompileAction(const Action *A) {
895	if (isa<CompileJobAction>(A) \|\| isa<BackendJobAction>(A))
896	return true;
897
898	for (const auto &AI : A->inputs())
899	if (ContainsCompileAction(AI))
900	return true;
901
902	return false;
903	}
904
905	/// Check if -relax-all should be passed to the internal assembler.
906	/// This is done by default when compiling non-assembler source with -O0.
907	static bool UseRelaxAll(Compilation &C, const ArgList &Args) {
908	bool RelaxDefault = true;
909
910	if (Arg *A = Args.getLastArg(options::OPT_O_Group))
911	RelaxDefault = A->getOption().matches(options::OPT_O0);
912
913	if (RelaxDefault) {
914	RelaxDefault = false;
915	for (const auto &Act : C.getActions()) {
916	if (ContainsCompileAction(Act)) {
917	RelaxDefault = true;
918	break;
919	}
920	}
921	}
922
923	return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all,
924	RelaxDefault);
925	}
926
927	// Extract the integer N from a string spelled "-dwarf-N", returning 0
928	// on mismatch. The StringRef input (rather than an Arg) allows
929	// for use by the "-Xassembler" option parser.
930	static unsigned DwarfVersionNum(StringRef ArgValue) {
931	return llvm::StringSwitch<unsigned>(ArgValue)
932	.Case("-gdwarf-2", 2)
933	.Case("-gdwarf-3", 3)
934	.Case("-gdwarf-4", 4)
935	.Case("-gdwarf-5", 5)
936	.Default(0);
937	}
938
939	static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs,
940	codegenoptions::DebugInfoKind DebugInfoKind,
941	unsigned DwarfVersion,
942	llvm::DebuggerKind DebuggerTuning) {
943	switch (DebugInfoKind) {
944	case codegenoptions::DebugDirectivesOnly:
945	CmdArgs.push_back("-debug-info-kind=line-directives-only");
946	break;
947	case codegenoptions::DebugLineTablesOnly:
948	CmdArgs.push_back("-debug-info-kind=line-tables-only");
949	break;
950	case codegenoptions::LimitedDebugInfo:
951	CmdArgs.push_back("-debug-info-kind=limited");
952	break;
953	case codegenoptions::FullDebugInfo:
954	CmdArgs.push_back("-debug-info-kind=standalone");
955	break;
956	default:
957	break;
958	}
959	if (DwarfVersion > 0)
960	CmdArgs.push_back(
961	Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion)));
962	switch (DebuggerTuning) {
963	case llvm::DebuggerKind::GDB:
964	CmdArgs.push_back("-debugger-tuning=gdb");
965	break;
966	case llvm::DebuggerKind::LLDB:
967	CmdArgs.push_back("-debugger-tuning=lldb");
968	break;
969	case llvm::DebuggerKind::SCE:
970	CmdArgs.push_back("-debugger-tuning=sce");
971	break;
972	default:
973	break;
974	}
975	}
976
977	static bool checkDebugInfoOption(const Arg *A, const ArgList &Args,
978	const Driver &D, const ToolChain &TC) {
979	(0) . __assert_fail ("A && \"Expected non-nullptr argument.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 979, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(A && "Expected non-nullptr argument.");
980	if (TC.supportsDebugInfoOption(A))
981	return true;
982	D.Diag(diag::warn_drv_unsupported_debug_info_opt_for_target)
983	<< A->getAsString(Args) << TC.getTripleString();
984	return false;
985	}
986
987	static void RenderDebugInfoCompressionArgs(const ArgList &Args,
988	ArgStringList &CmdArgs,
989	const Driver &D,
990	const ToolChain &TC) {
991	const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ);
992	if (!A)
993	return;
994	if (checkDebugInfoOption(A, Args, D, TC)) {
995	if (A->getOption().getID() == options::OPT_gz) {
996	if (llvm::zlib::isAvailable())
997	CmdArgs.push_back("-compress-debug-sections");
998	else
999	D.Diag(diag::warn_debug_compression_unavailable);
1000	return;
1001	}
1002
1003	StringRef Value = A->getValue();
1004	if (Value == "none") {
1005	CmdArgs.push_back("-compress-debug-sections=none");
1006	} else if (Value == "zlib" \|\| Value == "zlib-gnu") {
1007	if (llvm::zlib::isAvailable()) {
1008	CmdArgs.push_back(
1009	Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
1010	} else {
1011	D.Diag(diag::warn_debug_compression_unavailable);
1012	}
1013	} else {
1014	D.Diag(diag::err_drv_unsupported_option_argument)
1015	<< A->getOption().getName() << Value;
1016	}
1017	}
1018	}
1019
1020	static const char *RelocationModelName(llvm::Reloc::Model Model) {
1021	switch (Model) {
1022	case llvm::Reloc::Static:
1023	return "static";
1024	case llvm::Reloc::PIC_:
1025	return "pic";
1026	case llvm::Reloc::DynamicNoPIC:
1027	return "dynamic-no-pic";
1028	case llvm::Reloc::ROPI:
1029	return "ropi";
1030	case llvm::Reloc::RWPI:
1031	return "rwpi";
1032	case llvm::Reloc::ROPI_RWPI:
1033	return "ropi-rwpi";
1034	}
1035	llvm_unreachable("Unknown Reloc::Model kind");
1036	}
1037
1038	void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
1039	const Driver &D, const ArgList &Args,
1040	ArgStringList &CmdArgs,
1041	const InputInfo &Output,
1042	const InputInfoList &Inputs) const {
1043	Arg *A;
1044	const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU();
1045
1046	CheckPreprocessingOptions(D, Args);
1047
1048	Args.AddLastArg(CmdArgs, options::OPT_C);
1049	Args.AddLastArg(CmdArgs, options::OPT_CC);
1050
1051	// Handle dependency file generation.
1052	if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) \|\|
1053	(A = Args.getLastArg(options::OPT_MD)) \|\|
1054	(A = Args.getLastArg(options::OPT_MMD))) {
1055	// Determine the output location.
1056	const char *DepFile;
1057	if (Arg *MF = Args.getLastArg(options::OPT_MF)) {
1058	DepFile = MF->getValue();
1059	C.addFailureResultFile(DepFile, &JA);
1060	} else if (Output.getType() == types::TY_Dependencies) {
1061	DepFile = Output.getFilename();
1062	} else if (A->getOption().matches(options::OPT_M) \|\|
1063	A->getOption().matches(options::OPT_MM)) {
1064	DepFile = "-";
1065	} else {
1066	DepFile = getDependencyFileName(Args, Inputs);
1067	C.addFailureResultFile(DepFile, &JA);
1068	}
1069	CmdArgs.push_back("-dependency-file");
1070	CmdArgs.push_back(DepFile);
1071
1072	// Add a default target if one wasn't specified.
1073	if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) {
1074	const char *DepTarget;
1075
1076	// If user provided -o, that is the dependency target, except
1077	// when we are only generating a dependency file.
1078	Arg *OutputOpt = Args.getLastArg(options::OPT_o);
1079	if (OutputOpt && Output.getType() != types::TY_Dependencies) {
1080	DepTarget = OutputOpt->getValue();
1081	} else {
1082	// Otherwise derive from the base input.
1083	//
1084	// FIXME: This should use the computed output file location.
1085	SmallString<128> P(Inputs[0].getBaseInput());
1086	llvm::sys::path::replace_extension(P, "o");
1087	DepTarget = Args.MakeArgString(llvm::sys::path::filename(P));
1088	}
1089
1090	if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) {
1091	CmdArgs.push_back("-w");
1092	}
1093	CmdArgs.push_back("-MT");
1094	SmallString<128> Quoted;
1095	QuoteTarget(DepTarget, Quoted);
1096	CmdArgs.push_back(Args.MakeArgString(Quoted));
1097	}
1098
1099	if (A->getOption().matches(options::OPT_M) \|\|
1100	A->getOption().matches(options::OPT_MD))
1101	CmdArgs.push_back("-sys-header-deps");
1102	if ((isa<PrecompileJobAction>(JA) &&
1103	!Args.hasArg(options::OPT_fno_module_file_deps)) \|\|
1104	Args.hasArg(options::OPT_fmodule_file_deps))
1105	CmdArgs.push_back("-module-file-deps");
1106	}
1107
1108	if (Args.hasArg(options::OPT_MG)) {
1109	if (!A \|\| A->getOption().matches(options::OPT_MD) \|\|
1110	A->getOption().matches(options::OPT_MMD))
1111	D.Diag(diag::err_drv_mg_requires_m_or_mm);
1112	CmdArgs.push_back("-MG");
1113	}
1114
1115	Args.AddLastArg(CmdArgs, options::OPT_MP);
1116	Args.AddLastArg(CmdArgs, options::OPT_MV);
1117
1118	// Convert all -MQ <target> args to -MT <quoted target>
1119	for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) {
1120	A->claim();
1121
1122	if (A->getOption().matches(options::OPT_MQ)) {
1123	CmdArgs.push_back("-MT");
1124	SmallString<128> Quoted;
1125	QuoteTarget(A->getValue(), Quoted);
1126	CmdArgs.push_back(Args.MakeArgString(Quoted));
1127
1128	// -MT flag - no change
1129	} else {
1130	A->render(Args, CmdArgs);
1131	}
1132	}
1133
1134	// Add offload include arguments specific for CUDA. This must happen before
1135	// we -I or -include anything else, because we must pick up the CUDA headers
1136	// from the particular CUDA installation, rather than from e.g.
1137	// /usr/local/include.
1138	if (JA.isOffloading(Action::OFK_Cuda))
1139	getToolChain().AddCudaIncludeArgs(Args, CmdArgs);
1140
1141	// Add -i* options, and automatically translate to
1142	// -include-pch/-include-pth for transparent PCH support. It's
1143	// wonky, but we include looking for .gch so we can support seamless
1144	// replacement into a build system already set up to be generating
1145	// .gch files.
1146
1147	if (getToolChain().getDriver().IsCLMode()) {
1148	const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc);
1149	const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu);
1150	if (YcArg && JA.getKind() >= Action::PrecompileJobClass &&
1151	JA.getKind() <= Action::AssembleJobClass) {
1152	CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj"));
1153	}
1154	if (YcArg \|\| YuArg) {
1155	StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue();
1156	if (!isa<PrecompileJobAction>(JA)) {
1157	CmdArgs.push_back("-include-pch");
1158	CmdArgs.push_back(Args.MakeArgString(D.GetClPchPath(
1159	C, !ThroughHeader.empty()
1160	? ThroughHeader
1161	: llvm::sys::path::filename(Inputs[0].getBaseInput()))));
1162	}
1163
1164	if (ThroughHeader.empty()) {
1165	CmdArgs.push_back(Args.MakeArgString(
1166	Twine("-pch-through-hdrstop-") + (YcArg ? "create" : "use")));
1167	} else {
1168	CmdArgs.push_back(
1169	Args.MakeArgString(Twine("-pch-through-header=") + ThroughHeader));
1170	}
1171	}
1172	}
1173
1174	bool RenderedImplicitInclude = false;
1175	for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) {
1176	if (A->getOption().matches(options::OPT_include)) {
1177	// Handling of gcc-style gch precompiled headers.
1178	bool IsFirstImplicitInclude = !RenderedImplicitInclude;
1179	RenderedImplicitInclude = true;
1180
1181	bool FoundPCH = false;
1182	SmallString<128> P(A->getValue());
1183	// We want the files to have a name like foo.h.pch. Add a dummy extension
1184	// so that replace_extension does the right thing.
1185	P += ".dummy";
1186	llvm::sys::path::replace_extension(P, "pch");
1187	if (llvm::sys::fs::exists(P))
1188	FoundPCH = true;
1189
1190	if (!FoundPCH) {
1191	llvm::sys::path::replace_extension(P, "gch");
1192	if (llvm::sys::fs::exists(P)) {
1193	FoundPCH = true;
1194	}
1195	}
1196
1197	if (FoundPCH) {
1198	if (IsFirstImplicitInclude) {
1199	A->claim();
1200	CmdArgs.push_back("-include-pch");
1201	CmdArgs.push_back(Args.MakeArgString(P));
1202	continue;
1203	} else {
1204	// Ignore the PCH if not first on command line and emit warning.
1205	D.Diag(diag::warn_drv_pch_not_first_include) << P
1206	<< A->getAsString(Args);
1207	}
1208	}
1209	} else if (A->getOption().matches(options::OPT_isystem_after)) {
1210	// Handling of paths which must come late. These entries are handled by
1211	// the toolchain itself after the resource dir is inserted in the right
1212	// search order.
1213	// Do not claim the argument so that the use of the argument does not
1214	// silently go unnoticed on toolchains which do not honour the option.
1215	continue;
1216	}
1217
1218	// Not translated, render as usual.
1219	A->claim();
1220	A->render(Args, CmdArgs);
1221	}
1222
1223	Args.AddAllArgs(CmdArgs,
1224	{options::OPT_D, options::OPT_U, options::OPT_I_Group,
1225	options::OPT_F, options::OPT_index_header_map});
1226
1227	// Add -Wp, and -Xpreprocessor if using the preprocessor.
1228
1229	// FIXME: There is a very unfortunate problem here, some troubled
1230	// souls abuse -Wp, to pass preprocessor options in gcc syntax. To
1231	// really support that we would have to parse and then translate
1232	// those options. :(
1233	Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA,
1234	options::OPT_Xpreprocessor);
1235
1236	// -I- is a deprecated GCC feature, reject it.
1237	if (Arg *A = Args.getLastArg(options::OPT_I_))
1238	D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args);
1239
1240	// If we have a --sysroot, and don't have an explicit -isysroot flag, add an
1241	// -isysroot to the CC1 invocation.
1242	StringRef sysroot = C.getSysRoot();
1243	if (sysroot != "") {
1244	if (!Args.hasArg(options::OPT_isysroot)) {
1245	CmdArgs.push_back("-isysroot");
1246	CmdArgs.push_back(C.getArgs().MakeArgString(sysroot));
1247	}
1248	}
1249
1250	// Parse additional include paths from environment variables.
1251	// FIXME: We should probably sink the logic for handling these from the
1252	// frontend into the driver. It will allow deleting 4 otherwise unused flags.
1253	// CPATH - included following the user specified includes (but prior to
1254	// builtin and standard includes).
1255	addDirectoryList(Args, CmdArgs, "-I", "CPATH");
1256	// C_INCLUDE_PATH - system includes enabled when compiling C.
1257	addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH");
1258	// CPLUS_INCLUDE_PATH - system includes enabled when compiling C++.
1259	addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH");
1260	// OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC.
1261	addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH");
1262	// OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++.
1263	addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH");
1264
1265	// While adding the include arguments, we also attempt to retrieve the
1266	// arguments of related offloading toolchains or arguments that are specific
1267	// of an offloading programming model.
1268
1269	// Add C++ include arguments, if needed.
1270	if (types::isCXX(Inputs[0].getType()))
1271	forAllAssociatedToolChains(C, JA, getToolChain(),
1272	[&Args, &CmdArgs](const ToolChain &TC) {
1273	TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
1274	});
1275
1276	// Add system include arguments for all targets but IAMCU.
1277	if (!IsIAMCU)
1278	forAllAssociatedToolChains(C, JA, getToolChain(),
1279	[&Args, &CmdArgs](const ToolChain &TC) {
1280	TC.AddClangSystemIncludeArgs(Args, CmdArgs);
1281	});
1282	else {
1283	// For IAMCU add special include arguments.
1284	getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs);
1285	}
1286	}
1287
1288	// FIXME: Move to target hook.
1289	static bool isSignedCharDefault(const llvm::Triple &Triple) {
1290	switch (Triple.getArch()) {
1291	default:
1292	return true;
1293
1294	case llvm::Triple::aarch64:
1295	case llvm::Triple::aarch64_be:
1296	case llvm::Triple::arm:
1297	case llvm::Triple::armeb:
1298	case llvm::Triple::thumb:
1299	case llvm::Triple::thumbeb:
1300	if (Triple.isOSDarwin() \|\| Triple.isOSWindows())
1301	return true;
1302	return false;
1303
1304	case llvm::Triple::ppc:
1305	case llvm::Triple::ppc64:
1306	if (Triple.isOSDarwin())
1307	return true;
1308	return false;
1309
1310	case llvm::Triple::hexagon:
1311	case llvm::Triple::ppc64le:
1312	case llvm::Triple::riscv32:
1313	case llvm::Triple::riscv64:
1314	case llvm::Triple::systemz:
1315	case llvm::Triple::xcore:
1316	return false;
1317	}
1318	}
1319
1320	static bool isNoCommonDefault(const llvm::Triple &Triple) {
1321	switch (Triple.getArch()) {
1322	default:
1323	if (Triple.isOSFuchsia())
1324	return true;
1325	return false;
1326
1327	case llvm::Triple::xcore:
1328	case llvm::Triple::wasm32:
1329	case llvm::Triple::wasm64:
1330	return true;
1331	}
1332	}
1333
1334	namespace {
1335	void RenderARMABI(const llvm::Triple &Triple, const ArgList &Args,
1336	ArgStringList &CmdArgs) {
1337	// Select the ABI to use.
1338	// FIXME: Support -meabi.
1339	// FIXME: Parts of this are duplicated in the backend, unify this somehow.
1340	const char *ABIName = nullptr;
1341	if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) {
1342	ABIName = A->getValue();
1343	} else {
1344	std::string CPU = getCPUName(Args, Triple, /FromAs/ false);
1345	ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data();
1346	}
1347
1348	CmdArgs.push_back("-target-abi");
1349	CmdArgs.push_back(ABIName);
1350	}
1351	}
1352
1353	void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args,
1354	ArgStringList &CmdArgs, bool KernelOrKext) const {
1355	RenderARMABI(Triple, Args, CmdArgs);
1356
1357	// Determine floating point ABI from the options & target defaults.
1358	arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args);
1359	if (ABI == arm::FloatABI::Soft) {
1360	// Floating point operations and argument passing are soft.
1361	// FIXME: This changes CPP defines, we need -target-soft-float.
1362	CmdArgs.push_back("-msoft-float");
1363	CmdArgs.push_back("-mfloat-abi");
1364	CmdArgs.push_back("soft");
1365	} else if (ABI == arm::FloatABI::SoftFP) {
1366	// Floating point operations are hard, but argument passing is soft.
1367	CmdArgs.push_back("-mfloat-abi");
1368	CmdArgs.push_back("soft");
1369	} else {
1370	// Floating point operations and argument passing are hard.
1371	(0) . __assert_fail ("ABI == arm..FloatABI..Hard && \"Invalid float abi!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 1371, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(ABI == arm::FloatABI::Hard && "Invalid float abi!");
1372	CmdArgs.push_back("-mfloat-abi");
1373	CmdArgs.push_back("hard");
1374	}
1375
1376	// Forward the -mglobal-merge option for explicit control over the pass.
1377	if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
1378	options::OPT_mno_global_merge)) {
1379	CmdArgs.push_back("-mllvm");
1380	if (A->getOption().matches(options::OPT_mno_global_merge))
1381	CmdArgs.push_back("-arm-global-merge=false");
1382	else
1383	CmdArgs.push_back("-arm-global-merge=true");
1384	}
1385
1386	if (!Args.hasFlag(options::OPT_mimplicit_float,
1387	options::OPT_mno_implicit_float, true))
1388	CmdArgs.push_back("-no-implicit-float");
1389	}
1390
1391	void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple,
1392	const ArgList &Args, bool KernelOrKext,
1393	ArgStringList &CmdArgs) const {
1394	const ToolChain &TC = getToolChain();
1395
1396	// Add the target features
1397	getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false);
1398
1399	// Add target specific flags.
1400	switch (TC.getArch()) {
1401	default:
1402	break;
1403
1404	case llvm::Triple::arm:
1405	case llvm::Triple::armeb:
1406	case llvm::Triple::thumb:
1407	case llvm::Triple::thumbeb:
1408	// Use the effective triple, which takes into account the deployment target.
1409	AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext);
1410	CmdArgs.push_back("-fallow-half-arguments-and-returns");
1411	break;
1412
1413	case llvm::Triple::aarch64:
1414	case llvm::Triple::aarch64_be:
1415	AddAArch64TargetArgs(Args, CmdArgs);
1416	CmdArgs.push_back("-fallow-half-arguments-and-returns");
1417	break;
1418
1419	case llvm::Triple::mips:
1420	case llvm::Triple::mipsel:
1421	case llvm::Triple::mips64:
1422	case llvm::Triple::mips64el:
1423	AddMIPSTargetArgs(Args, CmdArgs);
1424	break;
1425
1426	case llvm::Triple::ppc:
1427	case llvm::Triple::ppc64:
1428	case llvm::Triple::ppc64le:
1429	AddPPCTargetArgs(Args, CmdArgs);
1430	break;
1431
1432	case llvm::Triple::riscv32:
1433	case llvm::Triple::riscv64:
1434	AddRISCVTargetArgs(Args, CmdArgs);
1435	break;
1436
1437	case llvm::Triple::sparc:
1438	case llvm::Triple::sparcel:
1439	case llvm::Triple::sparcv9:
1440	AddSparcTargetArgs(Args, CmdArgs);
1441	break;
1442
1443	case llvm::Triple::systemz:
1444	AddSystemZTargetArgs(Args, CmdArgs);
1445	break;
1446
1447	case llvm::Triple::x86:
1448	case llvm::Triple::x86_64:
1449	AddX86TargetArgs(Args, CmdArgs);
1450	break;
1451
1452	case llvm::Triple::lanai:
1453	AddLanaiTargetArgs(Args, CmdArgs);
1454	break;
1455
1456	case llvm::Triple::hexagon:
1457	AddHexagonTargetArgs(Args, CmdArgs);
1458	break;
1459
1460	case llvm::Triple::wasm32:
1461	case llvm::Triple::wasm64:
1462	AddWebAssemblyTargetArgs(Args, CmdArgs);
1463	break;
1464	}
1465	}
1466
1467	// Parse -mbranch-protection=<protection>[+<protection>]* where
1468	// <protection> ::= standard \| none \| [bti,pac-ret[+b-key,+leaf]*]
1469	// Returns a triple of (return address signing Scope, signing key, require
1470	// landing pads)
1471	static std::tuple<StringRef, StringRef, bool>
1472	ParseAArch64BranchProtection(const Driver &D, const ArgList &Args,
1473	const Arg *A) {
1474	StringRef Scope = "none";
1475	StringRef Key = "a_key";
1476	bool IndirectBranches = false;
1477
1478	StringRef Value = A->getValue();
1479	// This maps onto -mbranch-protection=<scope>+<key>
1480
1481	if (Value.equals("standard")) {
1482	Scope = "non-leaf";
1483	Key = "a_key";
1484	IndirectBranches = true;
1485
1486	} else if (!Value.equals("none")) {
1487	SmallVector<StringRef, 4> BranchProtection;
1488	StringRef(A->getValue()).split(BranchProtection, '+');
1489
1490	auto Protection = BranchProtection.begin();
1491	while (Protection != BranchProtection.end()) {
1492	if (Protection->equals("bti"))
1493	IndirectBranches = true;
1494	else if (Protection->equals("pac-ret")) {
1495	Scope = "non-leaf";
1496	while (++Protection != BranchProtection.end()) {
1497	// Inner loop as "leaf" and "b-key" options must only appear attached
1498	// to pac-ret.
1499	if (Protection->equals("leaf"))
1500	Scope = "all";
1501	else if (Protection->equals("b-key"))
1502	Key = "b_key";
1503	else
1504	break;
1505	}
1506	Protection--;
1507	} else
1508	D.Diag(diag::err_invalid_branch_protection)
1509	<< *Protection << A->getAsString(Args);
1510	Protection++;
1511	}
1512	}
1513
1514	return std::make_tuple(Scope, Key, IndirectBranches);
1515	}
1516
1517	namespace {
1518	void RenderAArch64ABI(const llvm::Triple &Triple, const ArgList &Args,
1519	ArgStringList &CmdArgs) {
1520	const char *ABIName = nullptr;
1521	if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
1522	ABIName = A->getValue();
1523	else if (Triple.isOSDarwin())
1524	ABIName = "darwinpcs";
1525	else
1526	ABIName = "aapcs";
1527
1528	CmdArgs.push_back("-target-abi");
1529	CmdArgs.push_back(ABIName);
1530	}
1531	}
1532
1533	void Clang::AddAArch64TargetArgs(const ArgList &Args,
1534	ArgStringList &CmdArgs) const {
1535	const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
1536
1537	if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) \|\|
1538	Args.hasArg(options::OPT_mkernel) \|\|
1539	Args.hasArg(options::OPT_fapple_kext))
1540	CmdArgs.push_back("-disable-red-zone");
1541
1542	if (!Args.hasFlag(options::OPT_mimplicit_float,
1543	options::OPT_mno_implicit_float, true))
1544	CmdArgs.push_back("-no-implicit-float");
1545
1546	RenderAArch64ABI(Triple, Args, CmdArgs);
1547
1548	if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769,
1549	options::OPT_mno_fix_cortex_a53_835769)) {
1550	CmdArgs.push_back("-mllvm");
1551	if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769))
1552	CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
1553	else
1554	CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0");
1555	} else if (Triple.isAndroid()) {
1556	// Enabled A53 errata (835769) workaround by default on android
1557	CmdArgs.push_back("-mllvm");
1558	CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
1559	}
1560
1561	// Forward the -mglobal-merge option for explicit control over the pass.
1562	if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
1563	options::OPT_mno_global_merge)) {
1564	CmdArgs.push_back("-mllvm");
1565	if (A->getOption().matches(options::OPT_mno_global_merge))
1566	CmdArgs.push_back("-aarch64-enable-global-merge=false");
1567	else
1568	CmdArgs.push_back("-aarch64-enable-global-merge=true");
1569	}
1570
1571	// Enable/disable return address signing and indirect branch targets.
1572	if (Arg *A = Args.getLastArg(options::OPT_msign_return_address_EQ,
1573	options::OPT_mbranch_protection_EQ)) {
1574
1575	const Driver &D = getToolChain().getDriver();
1576
1577	StringRef Scope, Key;
1578	bool IndirectBranches;
1579
1580	if (A->getOption().matches(options::OPT_msign_return_address_EQ)) {
1581	Scope = A->getValue();
1582	if (!Scope.equals("none") && !Scope.equals("non-leaf") &&
1583	!Scope.equals("all"))
1584	D.Diag(diag::err_invalid_branch_protection)
1585	<< Scope << A->getAsString(Args);
1586	Key = "a_key";
1587	IndirectBranches = false;
1588	} else
1589	std::tie(Scope, Key, IndirectBranches) =
1590	ParseAArch64BranchProtection(D, Args, A);
1591
1592	CmdArgs.push_back(
1593	Args.MakeArgString(Twine("-msign-return-address=") + Scope));
1594	CmdArgs.push_back(
1595	Args.MakeArgString(Twine("-msign-return-address-key=") + Key));
1596	if (IndirectBranches)
1597	CmdArgs.push_back("-mbranch-target-enforce");
1598	}
1599	}
1600
1601	void Clang::AddMIPSTargetArgs(const ArgList &Args,
1602	ArgStringList &CmdArgs) const {
1603	const Driver &D = getToolChain().getDriver();
1604	StringRef CPUName;
1605	StringRef ABIName;
1606	const llvm::Triple &Triple = getToolChain().getTriple();
1607	mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
1608
1609	CmdArgs.push_back("-target-abi");
1610	CmdArgs.push_back(ABIName.data());
1611
1612	mips::FloatABI ABI = mips::getMipsFloatABI(D, Args);
1613	if (ABI == mips::FloatABI::Soft) {
1614	// Floating point operations and argument passing are soft.
1615	CmdArgs.push_back("-msoft-float");
1616	CmdArgs.push_back("-mfloat-abi");
1617	CmdArgs.push_back("soft");
1618	} else {
1619	// Floating point operations and argument passing are hard.
1620	(0) . __assert_fail ("ABI == mips..FloatABI..Hard && \"Invalid float abi!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 1620, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(ABI == mips::FloatABI::Hard && "Invalid float abi!");
1621	CmdArgs.push_back("-mfloat-abi");
1622	CmdArgs.push_back("hard");
1623	}
1624
1625	if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) {
1626	if (A->getOption().matches(options::OPT_mxgot)) {
1627	CmdArgs.push_back("-mllvm");
1628	CmdArgs.push_back("-mxgot");
1629	}
1630	}
1631
1632	if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1,
1633	options::OPT_mno_ldc1_sdc1)) {
1634	if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) {
1635	CmdArgs.push_back("-mllvm");
1636	CmdArgs.push_back("-mno-ldc1-sdc1");
1637	}
1638	}
1639
1640	if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division,
1641	options::OPT_mno_check_zero_division)) {
1642	if (A->getOption().matches(options::OPT_mno_check_zero_division)) {
1643	CmdArgs.push_back("-mllvm");
1644	CmdArgs.push_back("-mno-check-zero-division");
1645	}
1646	}
1647
1648	if (Arg *A = Args.getLastArg(options::OPT_G)) {
1649	StringRef v = A->getValue();
1650	CmdArgs.push_back("-mllvm");
1651	CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v));
1652	A->claim();
1653	}
1654
1655	Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt);
1656	Arg *ABICalls =
1657	Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls);
1658
1659	// -mabicalls is the default for many MIPS environments, even with -fno-pic.
1660	// -mgpopt is the default for static, -fno-pic environments but these two
1661	// options conflict. We want to be certain that -mno-abicalls -mgpopt is
1662	// the only case where -mllvm -mgpopt is passed.
1663	// NOTE: We need a warning here or in the backend to warn when -mgpopt is
1664	// passed explicitly when compiling something with -mabicalls
1665	// (implictly) in affect. Currently the warning is in the backend.
1666	//
1667	// When the ABI in use is N64, we also need to determine the PIC mode that
1668	// is in use, as -fno-pic for N64 implies -mno-abicalls.
1669	bool NoABICalls =
1670	ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls);
1671
1672	llvm::Reloc::Model RelocationModel;
1673	unsigned PICLevel;
1674	bool IsPIE;
1675	std::tie(RelocationModel, PICLevel, IsPIE) =
1676	ParsePICArgs(getToolChain(), Args);
1677
1678	NoABICalls = NoABICalls \|\|
1679	(RelocationModel == llvm::Reloc::Static && ABIName == "n64");
1680
1681	bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt);
1682	// We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt.
1683	if (NoABICalls && (!GPOpt \|\| WantGPOpt)) {
1684	CmdArgs.push_back("-mllvm");
1685	CmdArgs.push_back("-mgpopt");
1686
1687	Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata,
1688	options::OPT_mno_local_sdata);
1689	Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata,
1690	options::OPT_mno_extern_sdata);
1691	Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data,
1692	options::OPT_mno_embedded_data);
1693	if (LocalSData) {
1694	CmdArgs.push_back("-mllvm");
1695	if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) {
1696	CmdArgs.push_back("-mlocal-sdata=1");
1697	} else {
1698	CmdArgs.push_back("-mlocal-sdata=0");
1699	}
1700	LocalSData->claim();
1701	}
1702
1703	if (ExternSData) {
1704	CmdArgs.push_back("-mllvm");
1705	if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) {
1706	CmdArgs.push_back("-mextern-sdata=1");
1707	} else {
1708	CmdArgs.push_back("-mextern-sdata=0");
1709	}
1710	ExternSData->claim();
1711	}
1712
1713	if (EmbeddedData) {
1714	CmdArgs.push_back("-mllvm");
1715	if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) {
1716	CmdArgs.push_back("-membedded-data=1");
1717	} else {
1718	CmdArgs.push_back("-membedded-data=0");
1719	}
1720	EmbeddedData->claim();
1721	}
1722
1723	} else if ((!ABICalls \|\| (!NoABICalls && ABICalls)) && WantGPOpt)
1724	D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1);
1725
1726	if (GPOpt)
1727	GPOpt->claim();
1728
1729	if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) {
1730	StringRef Val = StringRef(A->getValue());
1731	if (mips::hasCompactBranches(CPUName)) {
1732	if (Val == "never" \|\| Val == "always" \|\| Val == "optimal") {
1733	CmdArgs.push_back("-mllvm");
1734	CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val));
1735	} else
1736	D.Diag(diag::err_drv_unsupported_option_argument)
1737	<< A->getOption().getName() << Val;
1738	} else
1739	D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName;
1740	}
1741
1742	if (Arg *A = Args.getLastArg(options::OPT_mrelax_pic_calls,
1743	options::OPT_mno_relax_pic_calls)) {
1744	if (A->getOption().matches(options::OPT_mno_relax_pic_calls)) {
1745	CmdArgs.push_back("-mllvm");
1746	CmdArgs.push_back("-mips-jalr-reloc=0");
1747	}
1748	}
1749	}
1750
1751	void Clang::AddPPCTargetArgs(const ArgList &Args,
1752	ArgStringList &CmdArgs) const {
1753	// Select the ABI to use.
1754	const char *ABIName = nullptr;
1755	if (getToolChain().getTriple().isOSLinux())
1756	switch (getToolChain().getArch()) {
1757	case llvm::Triple::ppc64: {
1758	// When targeting a processor that supports QPX, or if QPX is
1759	// specifically enabled, default to using the ABI that supports QPX (so
1760	// long as it is not specifically disabled).
1761	bool HasQPX = false;
1762	if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
1763	HasQPX = A->getValue() == StringRef("a2q");
1764	HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX);
1765	if (HasQPX) {
1766	ABIName = "elfv1-qpx";
1767	break;
1768	}
1769
1770	ABIName = "elfv1";
1771	break;
1772	}
1773	case llvm::Triple::ppc64le:
1774	ABIName = "elfv2";
1775	break;
1776	default:
1777	break;
1778	}
1779
1780	if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
1781	// The ppc64 linux abis are all "altivec" abis by default. Accept and ignore
1782	// the option if given as we don't have backend support for any targets
1783	// that don't use the altivec abi.
1784	if (StringRef(A->getValue()) != "altivec")
1785	ABIName = A->getValue();
1786
1787	ppc::FloatABI FloatABI =
1788	ppc::getPPCFloatABI(getToolChain().getDriver(), Args);
1789
1790	if (FloatABI == ppc::FloatABI::Soft) {
1791	// Floating point operations and argument passing are soft.
1792	CmdArgs.push_back("-msoft-float");
1793	CmdArgs.push_back("-mfloat-abi");
1794	CmdArgs.push_back("soft");
1795	} else {
1796	// Floating point operations and argument passing are hard.
1797	(0) . __assert_fail ("FloatABI == ppc..FloatABI..Hard && \"Invalid float abi!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 1797, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!");
1798	CmdArgs.push_back("-mfloat-abi");
1799	CmdArgs.push_back("hard");
1800	}
1801
1802	if (ABIName) {
1803	CmdArgs.push_back("-target-abi");
1804	CmdArgs.push_back(ABIName);
1805	}
1806	}
1807
1808	void Clang::AddRISCVTargetArgs(const ArgList &Args,
1809	ArgStringList &CmdArgs) const {
1810	// FIXME: currently defaults to the soft-float ABIs. Will need to be
1811	// expanded to select ilp32f, ilp32d, lp64f, lp64d when appropriate.
1812	const char *ABIName = nullptr;
1813	const llvm::Triple &Triple = getToolChain().getTriple();
1814	if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
1815	ABIName = A->getValue();
1816	else if (Triple.getArch() == llvm::Triple::riscv32)
1817	ABIName = "ilp32";
1818	else if (Triple.getArch() == llvm::Triple::riscv64)
1819	ABIName = "lp64";
1820	else
1821	llvm_unreachable("Unexpected triple!");
1822
1823	CmdArgs.push_back("-target-abi");
1824	CmdArgs.push_back(ABIName);
1825	}
1826
1827	void Clang::AddSparcTargetArgs(const ArgList &Args,
1828	ArgStringList &CmdArgs) const {
1829	sparc::FloatABI FloatABI =
1830	sparc::getSparcFloatABI(getToolChain().getDriver(), Args);
1831
1832	if (FloatABI == sparc::FloatABI::Soft) {
1833	// Floating point operations and argument passing are soft.
1834	CmdArgs.push_back("-msoft-float");
1835	CmdArgs.push_back("-mfloat-abi");
1836	CmdArgs.push_back("soft");
1837	} else {
1838	// Floating point operations and argument passing are hard.
1839	(0) . __assert_fail ("FloatABI == sparc..FloatABI..Hard && \"Invalid float abi!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 1839, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!");
1840	CmdArgs.push_back("-mfloat-abi");
1841	CmdArgs.push_back("hard");
1842	}
1843	}
1844
1845	void Clang::AddSystemZTargetArgs(const ArgList &Args,
1846	ArgStringList &CmdArgs) const {
1847	if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false))
1848	CmdArgs.push_back("-mbackchain");
1849	}
1850
1851	void Clang::AddX86TargetArgs(const ArgList &Args,
1852	ArgStringList &CmdArgs) const {
1853	if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) \|\|
1854	Args.hasArg(options::OPT_mkernel) \|\|
1855	Args.hasArg(options::OPT_fapple_kext))
1856	CmdArgs.push_back("-disable-red-zone");
1857
1858	if (!Args.hasFlag(options::OPT_mtls_direct_seg_refs,
1859	options::OPT_mno_tls_direct_seg_refs, true))
1860	CmdArgs.push_back("-mno-tls-direct-seg-refs");
1861
1862	// Default to avoid implicit floating-point for kernel/kext code, but allow
1863	// that to be overridden with -mno-soft-float.
1864	bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) \|\|
1865	Args.hasArg(options::OPT_fapple_kext));
1866	if (Arg *A = Args.getLastArg(
1867	options::OPT_msoft_float, options::OPT_mno_soft_float,
1868	options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) {
1869	const Option &O = A->getOption();
1870	NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) \|\|
1871	O.matches(options::OPT_msoft_float));
1872	}
1873	if (NoImplicitFloat)
1874	CmdArgs.push_back("-no-implicit-float");
1875
1876	if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
1877	StringRef Value = A->getValue();
1878	if (Value == "intel" \|\| Value == "att") {
1879	CmdArgs.push_back("-mllvm");
1880	CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
1881	} else {
1882	getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
1883	<< A->getOption().getName() << Value;
1884	}
1885	} else if (getToolChain().getDriver().IsCLMode()) {
1886	CmdArgs.push_back("-mllvm");
1887	CmdArgs.push_back("-x86-asm-syntax=intel");
1888	}
1889
1890	// Set flags to support MCU ABI.
1891	if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) {
1892	CmdArgs.push_back("-mfloat-abi");
1893	CmdArgs.push_back("soft");
1894	CmdArgs.push_back("-mstack-alignment=4");
1895	}
1896	}
1897
1898	void Clang::AddHexagonTargetArgs(const ArgList &Args,
1899	ArgStringList &CmdArgs) const {
1900	CmdArgs.push_back("-mqdsp6-compat");
1901	CmdArgs.push_back("-Wreturn-type");
1902
1903	if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) {
1904	CmdArgs.push_back("-mllvm");
1905	CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" +
1906	Twine(G.getValue())));
1907	}
1908
1909	if (!Args.hasArg(options::OPT_fno_short_enums))
1910	CmdArgs.push_back("-fshort-enums");
1911	if (Args.getLastArg(options::OPT_mieee_rnd_near)) {
1912	CmdArgs.push_back("-mllvm");
1913	CmdArgs.push_back("-enable-hexagon-ieee-rnd-near");
1914	}
1915	CmdArgs.push_back("-mllvm");
1916	CmdArgs.push_back("-machine-sink-split=0");
1917	}
1918
1919	void Clang::AddLanaiTargetArgs(const ArgList &Args,
1920	ArgStringList &CmdArgs) const {
1921	if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
1922	StringRef CPUName = A->getValue();
1923
1924	CmdArgs.push_back("-target-cpu");
1925	CmdArgs.push_back(Args.MakeArgString(CPUName));
1926	}
1927	if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
1928	StringRef Value = A->getValue();
1929	// Only support mregparm=4 to support old usage. Report error for all other
1930	// cases.
1931	int Mregparm;
1932	if (Value.getAsInteger(10, Mregparm)) {
1933	if (Mregparm != 4) {
1934	getToolChain().getDriver().Diag(
1935	diag::err_drv_unsupported_option_argument)
1936	<< A->getOption().getName() << Value;
1937	}
1938	}
1939	}
1940	}
1941
1942	void Clang::AddWebAssemblyTargetArgs(const ArgList &Args,
1943	ArgStringList &CmdArgs) const {
1944	// Default to "hidden" visibility.
1945	if (!Args.hasArg(options::OPT_fvisibility_EQ,
1946	options::OPT_fvisibility_ms_compat)) {
1947	CmdArgs.push_back("-fvisibility");
1948	CmdArgs.push_back("hidden");
1949	}
1950	}
1951
1952	void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename,
1953	StringRef Target, const InputInfo &Output,
1954	const InputInfo &Input, const ArgList &Args) const {
1955	// If this is a dry run, do not create the compilation database file.
1956	if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
1957	return;
1958
1959	using llvm::yaml::escape;
1960	const Driver &D = getToolChain().getDriver();
1961
1962	if (!CompilationDatabase) {
1963	std::error_code EC;
1964	auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text);
1965	if (EC) {
1966	D.Diag(clang::diag::err_drv_compilationdatabase) << Filename
1967	<< EC.message();
1968	return;
1969	}
1970	CompilationDatabase = std::move(File);
1971	}
1972	auto &CDB = *CompilationDatabase;
1973	SmallString<128> Buf;
1974	if (llvm::sys::fs::current_path(Buf))
1975	Buf = ".";
1976	CDB << "{ \"directory\": \"" << escape(Buf) << "\"";
1977	CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\"";
1978	CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\"";
1979	CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\"";
1980	Buf = "-x";
1981	Buf += types::getTypeName(Input.getType());
1982	CDB << ", \"" << escape(Buf) << "\"";
1983	if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) {
1984	Buf = "--sysroot=";
1985	Buf += D.SysRoot;
1986	CDB << ", \"" << escape(Buf) << "\"";
1987	}
1988	CDB << ", \"" << escape(Input.getFilename()) << "\"";
1989	for (auto &A: Args) {
1990	auto &O = A->getOption();
1991	// Skip language selection, which is positional.
1992	if (O.getID() == options::OPT_x)
1993	continue;
1994	// Skip writing dependency output and the compilation database itself.
1995	if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group)
1996	continue;
1997	// Skip inputs.
1998	if (O.getKind() == Option::InputClass)
1999	continue;
2000	// All other arguments are quoted and appended.
2001	ArgStringList ASL;
2002	A->render(Args, ASL);
2003	for (auto &it: ASL)
2004	CDB << ", \"" << escape(it) << "\"";
2005	}
2006	Buf = "--target=";
2007	Buf += Target;
2008	CDB << ", \"" << escape(Buf) << "\"]},\n";
2009	}
2010
2011	static void CollectArgsForIntegratedAssembler(Compilation &C,
2012	const ArgList &Args,
2013	ArgStringList &CmdArgs,
2014	const Driver &D) {
2015	if (UseRelaxAll(C, Args))
2016	CmdArgs.push_back("-mrelax-all");
2017
2018	// Only default to -mincremental-linker-compatible if we think we are
2019	// targeting the MSVC linker.
2020	bool DefaultIncrementalLinkerCompatible =
2021	C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment();
2022	if (Args.hasFlag(options::OPT_mincremental_linker_compatible,
2023	options::OPT_mno_incremental_linker_compatible,
2024	DefaultIncrementalLinkerCompatible))
2025	CmdArgs.push_back("-mincremental-linker-compatible");
2026
2027	switch (C.getDefaultToolChain().getArch()) {
2028	case llvm::Triple::arm:
2029	case llvm::Triple::armeb:
2030	case llvm::Triple::thumb:
2031	case llvm::Triple::thumbeb:
2032	if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) {
2033	StringRef Value = A->getValue();
2034	if (Value == "always" \|\| Value == "never" \|\| Value == "arm" \|\|
2035	Value == "thumb") {
2036	CmdArgs.push_back("-mllvm");
2037	CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value));
2038	} else {
2039	D.Diag(diag::err_drv_unsupported_option_argument)
2040	<< A->getOption().getName() << Value;
2041	}
2042	}
2043	break;
2044	default:
2045	break;
2046	}
2047
2048	// When passing -I arguments to the assembler we sometimes need to
2049	// unconditionally take the next argument. For example, when parsing
2050	// '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the
2051	// -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo'
2052	// arg after parsing the '-I' arg.
2053	bool TakeNextArg = false;
2054
2055	bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations();
2056	bool UseNoExecStack = C.getDefaultToolChain().isNoExecStackDefault();
2057	const char *MipsTargetFeature = nullptr;
2058	for (const Arg *A :
2059	Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
2060	A->claim();
2061
2062	for (StringRef Value : A->getValues()) {
2063	if (TakeNextArg) {
2064	CmdArgs.push_back(Value.data());
2065	TakeNextArg = false;
2066	continue;
2067	}
2068
2069	if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() &&
2070	Value == "-mbig-obj")
2071	continue; // LLVM handles bigobj automatically
2072
2073	switch (C.getDefaultToolChain().getArch()) {
2074	default:
2075	break;
2076	case llvm::Triple::thumb:
2077	case llvm::Triple::thumbeb:
2078	case llvm::Triple::arm:
2079	case llvm::Triple::armeb:
2080	if (Value == "-mthumb")
2081	// -mthumb has already been processed in ComputeLLVMTriple()
2082	// recognize but skip over here.
2083	continue;
2084	break;
2085	case llvm::Triple::mips:
2086	case llvm::Triple::mipsel:
2087	case llvm::Triple::mips64:
2088	case llvm::Triple::mips64el:
2089	if (Value == "--trap") {
2090	CmdArgs.push_back("-target-feature");
2091	CmdArgs.push_back("+use-tcc-in-div");
2092	continue;
2093	}
2094	if (Value == "--break") {
2095	CmdArgs.push_back("-target-feature");
2096	CmdArgs.push_back("-use-tcc-in-div");
2097	continue;
2098	}
2099	if (Value.startswith("-msoft-float")) {
2100	CmdArgs.push_back("-target-feature");
2101	CmdArgs.push_back("+soft-float");
2102	continue;
2103	}
2104	if (Value.startswith("-mhard-float")) {
2105	CmdArgs.push_back("-target-feature");
2106	CmdArgs.push_back("-soft-float");
2107	continue;
2108	}
2109
2110	MipsTargetFeature = llvm::StringSwitch<const char *>(Value)
2111	.Case("-mips1", "+mips1")
2112	.Case("-mips2", "+mips2")
2113	.Case("-mips3", "+mips3")
2114	.Case("-mips4", "+mips4")
2115	.Case("-mips5", "+mips5")
2116	.Case("-mips32", "+mips32")
2117	.Case("-mips32r2", "+mips32r2")
2118	.Case("-mips32r3", "+mips32r3")
2119	.Case("-mips32r5", "+mips32r5")
2120	.Case("-mips32r6", "+mips32r6")
2121	.Case("-mips64", "+mips64")
2122	.Case("-mips64r2", "+mips64r2")
2123	.Case("-mips64r3", "+mips64r3")
2124	.Case("-mips64r5", "+mips64r5")
2125	.Case("-mips64r6", "+mips64r6")
2126	.Default(nullptr);
2127	if (MipsTargetFeature)
2128	continue;
2129	}
2130
2131	if (Value == "-force_cpusubtype_ALL") {
2132	// Do nothing, this is the default and we don't support anything else.
2133	} else if (Value == "-L") {
2134	CmdArgs.push_back("-msave-temp-labels");
2135	} else if (Value == "--fatal-warnings") {
2136	CmdArgs.push_back("-massembler-fatal-warnings");
2137	} else if (Value == "--noexecstack") {
2138	UseNoExecStack = true;
2139	} else if (Value.startswith("-compress-debug-sections") \|\|
2140	Value.startswith("--compress-debug-sections") \|\|
2141	Value == "-nocompress-debug-sections" \|\|
2142	Value == "--nocompress-debug-sections") {
2143	CmdArgs.push_back(Value.data());
2144	} else if (Value == "-mrelax-relocations=yes" \|\|
2145	Value == "--mrelax-relocations=yes") {
2146	UseRelaxRelocations = true;
2147	} else if (Value == "-mrelax-relocations=no" \|\|
2148	Value == "--mrelax-relocations=no") {
2149	UseRelaxRelocations = false;
2150	} else if (Value.startswith("-I")) {
2151	CmdArgs.push_back(Value.data());
2152	// We need to consume the next argument if the current arg is a plain
2153	// -I. The next arg will be the include directory.
2154	if (Value == "-I")
2155	TakeNextArg = true;
2156	} else if (Value.startswith("-gdwarf-")) {
2157	// "-gdwarf-N" options are not cc1as options.
2158	unsigned DwarfVersion = DwarfVersionNum(Value);
2159	if (DwarfVersion == 0) { // Send it onward, and let cc1as complain.
2160	CmdArgs.push_back(Value.data());
2161	} else {
2162	RenderDebugEnablingArgs(Args, CmdArgs,
2163	codegenoptions::LimitedDebugInfo,
2164	DwarfVersion, llvm::DebuggerKind::Default);
2165	}
2166	} else if (Value.startswith("-mcpu") \|\| Value.startswith("-mfpu") \|\|
2167	Value.startswith("-mhwdiv") \|\| Value.startswith("-march")) {
2168	// Do nothing, we'll validate it later.
2169	} else if (Value == "-defsym") {
2170	if (A->getNumValues() != 2) {
2171	D.Diag(diag::err_drv_defsym_invalid_format) << Value;
2172	break;
2173	}
2174	const char *S = A->getValue(1);
2175	auto Pair = StringRef(S).split('=');
2176	auto Sym = Pair.first;
2177	auto SVal = Pair.second;
2178
2179	if (Sym.empty() \|\| SVal.empty()) {
2180	D.Diag(diag::err_drv_defsym_invalid_format) << S;
2181	break;
2182	}
2183	int64_t IVal;
2184	if (SVal.getAsInteger(0, IVal)) {
2185	D.Diag(diag::err_drv_defsym_invalid_symval) << SVal;
2186	break;
2187	}
2188	CmdArgs.push_back(Value.data());
2189	TakeNextArg = true;
2190	} else if (Value == "-fdebug-compilation-dir") {
2191	CmdArgs.push_back("-fdebug-compilation-dir");
2192	TakeNextArg = true;
2193	} else {
2194	D.Diag(diag::err_drv_unsupported_option_argument)
2195	<< A->getOption().getName() << Value;
2196	}
2197	}
2198	}
2199	if (UseRelaxRelocations)
2200	CmdArgs.push_back("--mrelax-relocations");
2201	if (UseNoExecStack)
2202	CmdArgs.push_back("-mnoexecstack");
2203	if (MipsTargetFeature != nullptr) {
2204	CmdArgs.push_back("-target-feature");
2205	CmdArgs.push_back(MipsTargetFeature);
2206	}
2207
2208	// forward -fembed-bitcode to assmebler
2209	if (C.getDriver().embedBitcodeEnabled() \|\|
2210	C.getDriver().embedBitcodeMarkerOnly())
2211	Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
2212	}
2213
2214	static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D,
2215	bool OFastEnabled, const ArgList &Args,
2216	ArgStringList &CmdArgs) {
2217	// Handle various floating point optimization flags, mapping them to the
2218	// appropriate LLVM code generation flags. This is complicated by several
2219	// "umbrella" flags, so we do this by stepping through the flags incrementally
2220	// adjusting what we think is enabled/disabled, then at the end setting the
2221	// LLVM flags based on the final state.
2222	bool HonorINFs = true;
2223	bool HonorNaNs = true;
2224	// -fmath-errno is the default on some platforms, e.g. BSD-derived OSes.
2225	bool MathErrno = TC.IsMathErrnoDefault();
2226	bool AssociativeMath = false;
2227	bool ReciprocalMath = false;
2228	bool SignedZeros = true;
2229	bool TrappingMath = true;
2230	StringRef DenormalFPMath = "";
2231	StringRef FPContract = "";
2232
2233	if (const Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
2234	CmdArgs.push_back("-mlimit-float-precision");
2235	CmdArgs.push_back(A->getValue());
2236	}
2237
2238	for (const Arg *A : Args) {
2239	switch (A->getOption().getID()) {
2240	// If this isn't an FP option skip the claim below
2241	default: continue;
2242
2243	// Options controlling individual features
2244	case options::OPT_fhonor_infinities: HonorINFs = true; break;
2245	case options::OPT_fno_honor_infinities: HonorINFs = false; break;
2246	case options::OPT_fhonor_nans: HonorNaNs = true; break;
2247	case options::OPT_fno_honor_nans: HonorNaNs = false; break;
2248	case options::OPT_fmath_errno: MathErrno = true; break;
2249	case options::OPT_fno_math_errno: MathErrno = false; break;
2250	case options::OPT_fassociative_math: AssociativeMath = true; break;
2251	case options::OPT_fno_associative_math: AssociativeMath = false; break;
2252	case options::OPT_freciprocal_math: ReciprocalMath = true; break;
2253	case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break;
2254	case options::OPT_fsigned_zeros: SignedZeros = true; break;
2255	case options::OPT_fno_signed_zeros: SignedZeros = false; break;
2256	case options::OPT_ftrapping_math: TrappingMath = true; break;
2257	case options::OPT_fno_trapping_math: TrappingMath = false; break;
2258
2259	case options::OPT_fdenormal_fp_math_EQ:
2260	DenormalFPMath = A->getValue();
2261	break;
2262
2263	// Validate and pass through -fp-contract option.
2264	case options::OPT_ffp_contract: {
2265	StringRef Val = A->getValue();
2266	if (Val == "fast" \|\| Val == "on" \|\| Val == "off")
2267	FPContract = Val;
2268	else
2269	D.Diag(diag::err_drv_unsupported_option_argument)
2270	<< A->getOption().getName() << Val;
2271	break;
2272	}
2273
2274	case options::OPT_ffinite_math_only:
2275	HonorINFs = false;
2276	HonorNaNs = false;
2277	break;
2278	case options::OPT_fno_finite_math_only:
2279	HonorINFs = true;
2280	HonorNaNs = true;
2281	break;
2282
2283	case options::OPT_funsafe_math_optimizations:
2284	AssociativeMath = true;
2285	ReciprocalMath = true;
2286	SignedZeros = false;
2287	TrappingMath = false;
2288	break;
2289	case options::OPT_fno_unsafe_math_optimizations:
2290	AssociativeMath = false;
2291	ReciprocalMath = false;
2292	SignedZeros = true;
2293	TrappingMath = true;
2294	// -fno_unsafe_math_optimizations restores default denormal handling
2295	DenormalFPMath = "";
2296	break;
2297
2298	case options::OPT_Ofast:
2299	// If -Ofast is the optimization level, then -ffast-math should be enabled
2300	if (!OFastEnabled)
2301	continue;
2302	LLVM_FALLTHROUGH;
2303	case options::OPT_ffast_math:
2304	HonorINFs = false;
2305	HonorNaNs = false;
2306	MathErrno = false;
2307	AssociativeMath = true;
2308	ReciprocalMath = true;
2309	SignedZeros = false;
2310	TrappingMath = false;
2311	// If fast-math is set then set the fp-contract mode to fast.
2312	FPContract = "fast";
2313	break;
2314	case options::OPT_fno_fast_math:
2315	HonorINFs = true;
2316	HonorNaNs = true;
2317	// Turning on -ffast-math (with either flag) removes the need for
2318	// MathErrno. However, turning off -ffast-math merely restores the
2319	// toolchain default (which may be false).
2320	MathErrno = TC.IsMathErrnoDefault();
2321	AssociativeMath = false;
2322	ReciprocalMath = false;
2323	SignedZeros = true;
2324	TrappingMath = true;
2325	// -fno_fast_math restores default denormal and fpcontract handling
2326	DenormalFPMath = "";
2327	FPContract = "";
2328	break;
2329	}
2330
2331	// If we handled this option claim it
2332	A->claim();
2333	}
2334
2335	if (!HonorINFs)
2336	CmdArgs.push_back("-menable-no-infs");
2337
2338	if (!HonorNaNs)
2339	CmdArgs.push_back("-menable-no-nans");
2340
2341	if (MathErrno)
2342	CmdArgs.push_back("-fmath-errno");
2343
2344	if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros &&
2345	!TrappingMath)
2346	CmdArgs.push_back("-menable-unsafe-fp-math");
2347
2348	if (!SignedZeros)
2349	CmdArgs.push_back("-fno-signed-zeros");
2350
2351	if (AssociativeMath && !SignedZeros && !TrappingMath)
2352	CmdArgs.push_back("-mreassociate");
2353
2354	if (ReciprocalMath)
2355	CmdArgs.push_back("-freciprocal-math");
2356
2357	if (!TrappingMath)
2358	CmdArgs.push_back("-fno-trapping-math");
2359
2360	if (!DenormalFPMath.empty())
2361	CmdArgs.push_back(
2362	Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath));
2363
2364	if (!FPContract.empty())
2365	CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract));
2366
2367	ParseMRecip(D, Args, CmdArgs);
2368
2369	// -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the
2370	// individual features enabled by -ffast-math instead of the option itself as
2371	// that's consistent with gcc's behaviour.
2372	if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath &&
2373	ReciprocalMath && !SignedZeros && !TrappingMath)
2374	CmdArgs.push_back("-ffast-math");
2375
2376	// Handle __FINITE_MATH_ONLY__ similarly.
2377	if (!HonorINFs && !HonorNaNs)
2378	CmdArgs.push_back("-ffinite-math-only");
2379
2380	if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) {
2381	CmdArgs.push_back("-mfpmath");
2382	CmdArgs.push_back(A->getValue());
2383	}
2384
2385	// Disable a codegen optimization for floating-point casts.
2386	if (Args.hasFlag(options::OPT_fno_strict_float_cast_overflow,
2387	options::OPT_fstrict_float_cast_overflow, false))
2388	CmdArgs.push_back("-fno-strict-float-cast-overflow");
2389	}
2390
2391	static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs,
2392	const llvm::Triple &Triple,
2393	const InputInfo &Input) {
2394	// Enable region store model by default.
2395	CmdArgs.push_back("-analyzer-store=region");
2396
2397	// Treat blocks as analysis entry points.
2398	CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks");
2399
2400	// Add default argument set.
2401	if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) {
2402	CmdArgs.push_back("-analyzer-checker=core");
2403	CmdArgs.push_back("-analyzer-checker=apiModeling");
2404
2405	if (!Triple.isWindowsMSVCEnvironment()) {
2406	CmdArgs.push_back("-analyzer-checker=unix");
2407	} else {
2408	// Enable "unix" checkers that also work on Windows.
2409	CmdArgs.push_back("-analyzer-checker=unix.API");
2410	CmdArgs.push_back("-analyzer-checker=unix.Malloc");
2411	CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof");
2412	CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator");
2413	CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg");
2414	CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg");
2415	}
2416
2417	// Disable some unix checkers for PS4.
2418	if (Triple.isPS4CPU()) {
2419	CmdArgs.push_back("-analyzer-disable-checker=unix.API");
2420	CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork");
2421	}
2422
2423	if (Triple.isOSDarwin())
2424	CmdArgs.push_back("-analyzer-checker=osx");
2425
2426	CmdArgs.push_back("-analyzer-checker=deadcode");
2427
2428	if (types::isCXX(Input.getType()))
2429	CmdArgs.push_back("-analyzer-checker=cplusplus");
2430
2431	if (!Triple.isPS4CPU()) {
2432	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn");
2433	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw");
2434	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets");
2435	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp");
2436	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp");
2437	CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork");
2438	}
2439
2440	// Default nullability checks.
2441	CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull");
2442	CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull");
2443	}
2444
2445	// Set the output format. The default is plist, for (lame) historical reasons.
2446	CmdArgs.push_back("-analyzer-output");
2447	if (Arg *A = Args.getLastArg(options::OPT__analyzer_output))
2448	CmdArgs.push_back(A->getValue());
2449	else
2450	CmdArgs.push_back("plist");
2451
2452	// Disable the presentation of standard compiler warnings when using
2453	// --analyze. We only want to show static analyzer diagnostics or frontend
2454	// errors.
2455	CmdArgs.push_back("-w");
2456
2457	// Add -Xanalyzer arguments when running as analyzer.
2458	Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer);
2459	}
2460
2461	static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args,
2462	ArgStringList &CmdArgs, bool KernelOrKext) {
2463	const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple();
2464
2465	// NVPTX doesn't support stack protectors; from the compiler's perspective, it
2466	// doesn't even have a stack!
2467	if (EffectiveTriple.isNVPTX())
2468	return;
2469
2470	// -stack-protector=0 is default.
2471	unsigned StackProtectorLevel = 0;
2472	unsigned DefaultStackProtectorLevel =
2473	TC.GetDefaultStackProtectorLevel(KernelOrKext);
2474
2475	if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
2476	options::OPT_fstack_protector_all,
2477	options::OPT_fstack_protector_strong,
2478	options::OPT_fstack_protector)) {
2479	if (A->getOption().matches(options::OPT_fstack_protector))
2480	StackProtectorLevel =
2481	std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel);
2482	else if (A->getOption().matches(options::OPT_fstack_protector_strong))
2483	StackProtectorLevel = LangOptions::SSPStrong;
2484	else if (A->getOption().matches(options::OPT_fstack_protector_all))
2485	StackProtectorLevel = LangOptions::SSPReq;
2486	} else {
2487	StackProtectorLevel = DefaultStackProtectorLevel;
2488	}
2489
2490	if (StackProtectorLevel) {
2491	CmdArgs.push_back("-stack-protector");
2492	CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel)));
2493	}
2494
2495	// --param ssp-buffer-size=
2496	for (const Arg *A : Args.filtered(options::OPT__param)) {
2497	StringRef Str(A->getValue());
2498	if (Str.startswith("ssp-buffer-size=")) {
2499	if (StackProtectorLevel) {
2500	CmdArgs.push_back("-stack-protector-buffer-size");
2501	// FIXME: Verify the argument is a valid integer.
2502	CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16)));
2503	}
2504	A->claim();
2505	}
2506	}
2507	}
2508
2509	static void RenderTrivialAutoVarInitOptions(const Driver &D,
2510	const ToolChain &TC,
2511	const ArgList &Args,
2512	ArgStringList &CmdArgs) {
2513	auto DefaultTrivialAutoVarInit = TC.GetDefaultTrivialAutoVarInit();
2514	StringRef TrivialAutoVarInit = "";
2515
2516	for (const Arg *A : Args) {
2517	switch (A->getOption().getID()) {
2518	default:
2519	continue;
2520	case options::OPT_ftrivial_auto_var_init: {
2521	A->claim();
2522	StringRef Val = A->getValue();
2523	if (Val == "uninitialized" \|\| Val == "zero" \|\| Val == "pattern")
2524	TrivialAutoVarInit = Val;
2525	else
2526	D.Diag(diag::err_drv_unsupported_option_argument)
2527	<< A->getOption().getName() << Val;
2528	break;
2529	}
2530	}
2531	}
2532
2533	if (TrivialAutoVarInit.empty())
2534	switch (DefaultTrivialAutoVarInit) {
2535	case LangOptions::TrivialAutoVarInitKind::Uninitialized:
2536	break;
2537	case LangOptions::TrivialAutoVarInitKind::Pattern:
2538	TrivialAutoVarInit = "pattern";
2539	break;
2540	case LangOptions::TrivialAutoVarInitKind::Zero:
2541	TrivialAutoVarInit = "zero";
2542	break;
2543	}
2544
2545	if (!TrivialAutoVarInit.empty()) {
2546	if (TrivialAutoVarInit == "zero" && !Args.hasArg(options::OPT_enable_trivial_var_init_zero))
2547	D.Diag(diag::err_drv_trivial_auto_var_init_zero_disabled);
2548	CmdArgs.push_back(
2549	Args.MakeArgString("-ftrivial-auto-var-init=" + TrivialAutoVarInit));
2550	}
2551	}
2552
2553	static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) {
2554	const unsigned ForwardedArguments[] = {
2555	options::OPT_cl_opt_disable,
2556	options::OPT_cl_strict_aliasing,
2557	options::OPT_cl_single_precision_constant,
2558	options::OPT_cl_finite_math_only,
2559	options::OPT_cl_kernel_arg_info,
2560	options::OPT_cl_unsafe_math_optimizations,
2561	options::OPT_cl_fast_relaxed_math,
2562	options::OPT_cl_mad_enable,
2563	options::OPT_cl_no_signed_zeros,
2564	options::OPT_cl_denorms_are_zero,
2565	options::OPT_cl_fp32_correctly_rounded_divide_sqrt,
2566	options::OPT_cl_uniform_work_group_size
2567	};
2568
2569	if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) {
2570	std::string CLStdStr = std::string("-cl-std=") + A->getValue();
2571	CmdArgs.push_back(Args.MakeArgString(CLStdStr));
2572	}
2573
2574	for (const auto &Arg : ForwardedArguments)
2575	if (const auto *A = Args.getLastArg(Arg))
2576	CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName()));
2577	}
2578
2579	static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args,
2580	ArgStringList &CmdArgs) {
2581	bool ARCMTEnabled = false;
2582	if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) {
2583	if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check,
2584	options::OPT_ccc_arcmt_modify,
2585	options::OPT_ccc_arcmt_migrate)) {
2586	ARCMTEnabled = true;
2587	switch (A->getOption().getID()) {
2588	default: llvm_unreachable("missed a case");
2589	case options::OPT_ccc_arcmt_check:
2590	CmdArgs.push_back("-arcmt-check");
2591	break;
2592	case options::OPT_ccc_arcmt_modify:
2593	CmdArgs.push_back("-arcmt-modify");
2594	break;
2595	case options::OPT_ccc_arcmt_migrate:
2596	CmdArgs.push_back("-arcmt-migrate");
2597	CmdArgs.push_back("-mt-migrate-directory");
2598	CmdArgs.push_back(A->getValue());
2599
2600	Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output);
2601	Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors);
2602	break;
2603	}
2604	}
2605	} else {
2606	Args.ClaimAllArgs(options::OPT_ccc_arcmt_check);
2607	Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify);
2608	Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate);
2609	}
2610
2611	if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) {
2612	if (ARCMTEnabled)
2613	D.Diag(diag::err_drv_argument_not_allowed_with)
2614	<< A->getAsString(Args) << "-ccc-arcmt-migrate";
2615
2616	CmdArgs.push_back("-mt-migrate-directory");
2617	CmdArgs.push_back(A->getValue());
2618
2619	if (!Args.hasArg(options::OPT_objcmt_migrate_literals,
2620	options::OPT_objcmt_migrate_subscripting,
2621	options::OPT_objcmt_migrate_property)) {
2622	// None specified, means enable them all.
2623	CmdArgs.push_back("-objcmt-migrate-literals");
2624	CmdArgs.push_back("-objcmt-migrate-subscripting");
2625	CmdArgs.push_back("-objcmt-migrate-property");
2626	} else {
2627	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
2628	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
2629	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
2630	}
2631	} else {
2632	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
2633	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
2634	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
2635	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all);
2636	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property);
2637	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property);
2638	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax);
2639	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation);
2640	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype);
2641	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros);
2642	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance);
2643	Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property);
2644	Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property);
2645	Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly);
2646	Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init);
2647	Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path);
2648	}
2649	}
2650
2651	static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T,
2652	const ArgList &Args, ArgStringList &CmdArgs) {
2653	// -fbuiltin is default unless -mkernel is used.
2654	bool UseBuiltins =
2655	Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin,
2656	!Args.hasArg(options::OPT_mkernel));
2657	if (!UseBuiltins)
2658	CmdArgs.push_back("-fno-builtin");
2659
2660	// -ffreestanding implies -fno-builtin.
2661	if (Args.hasArg(options::OPT_ffreestanding))
2662	UseBuiltins = false;
2663
2664	// Process the -fno-builtin-* options.
2665	for (const auto &Arg : Args) {
2666	const Option &O = Arg->getOption();
2667	if (!O.matches(options::OPT_fno_builtin_))
2668	continue;
2669
2670	Arg->claim();
2671
2672	// If -fno-builtin is specified, then there's no need to pass the option to
2673	// the frontend.
2674	if (!UseBuiltins)
2675	continue;
2676
2677	StringRef FuncName = Arg->getValue();
2678	CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName));
2679	}
2680
2681	// le32-specific flags:
2682	// -fno-math-builtin: clang should not convert math builtins to intrinsics
2683	// by default.
2684	if (TC.getArch() == llvm::Triple::le32)
2685	CmdArgs.push_back("-fno-math-builtin");
2686	}
2687
2688	void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) {
2689	llvm::sys::path::system_temp_directory(/erasedOnReboot=/false, Result);
2690	llvm::sys::path::append(Result, "org.llvm.clang.");
2691	appendUserToPath(Result);
2692	llvm::sys::path::append(Result, "ModuleCache");
2693	}
2694
2695	static void RenderModulesOptions(Compilation &C, const Driver &D,
2696	const ArgList &Args, const InputInfo &Input,
2697	const InputInfo &Output,
2698	ArgStringList &CmdArgs, bool &HaveModules) {
2699	// -fmodules enables the use of precompiled modules (off by default).
2700	// Users can pass -fno-cxx-modules to turn off modules support for
2701	// C++/Objective-C++ programs.
2702	bool HaveClangModules = false;
2703	if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) {
2704	bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules,
2705	options::OPT_fno_cxx_modules, true);
2706	if (AllowedInCXX \|\| !types::isCXX(Input.getType())) {
2707	CmdArgs.push_back("-fmodules");
2708	HaveClangModules = true;
2709	}
2710	}
2711
2712	HaveModules = HaveClangModules;
2713	if (Args.hasArg(options::OPT_fmodules_ts)) {
2714	CmdArgs.push_back("-fmodules-ts");
2715	HaveModules = true;
2716	}
2717
2718	// -fmodule-maps enables implicit reading of module map files. By default,
2719	// this is enabled if we are using Clang's flavor of precompiled modules.
2720	if (Args.hasFlag(options::OPT_fimplicit_module_maps,
2721	options::OPT_fno_implicit_module_maps, HaveClangModules))
2722	CmdArgs.push_back("-fimplicit-module-maps");
2723
2724	// -fmodules-decluse checks that modules used are declared so (off by default)
2725	if (Args.hasFlag(options::OPT_fmodules_decluse,
2726	options::OPT_fno_modules_decluse, false))
2727	CmdArgs.push_back("-fmodules-decluse");
2728
2729	// -fmodules-strict-decluse is like -fmodule-decluse, but also checks that
2730	// all #included headers are part of modules.
2731	if (Args.hasFlag(options::OPT_fmodules_strict_decluse,
2732	options::OPT_fno_modules_strict_decluse, false))
2733	CmdArgs.push_back("-fmodules-strict-decluse");
2734
2735	// -fno-implicit-modules turns off implicitly compiling modules on demand.
2736	bool ImplicitModules = false;
2737	if (!Args.hasFlag(options::OPT_fimplicit_modules,
2738	options::OPT_fno_implicit_modules, HaveClangModules)) {
2739	if (HaveModules)
2740	CmdArgs.push_back("-fno-implicit-modules");
2741	} else if (HaveModules) {
2742	ImplicitModules = true;
2743	// -fmodule-cache-path specifies where our implicitly-built module files
2744	// should be written.
2745	SmallString<128> Path;
2746	if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path))
2747	Path = A->getValue();
2748
2749	if (C.isForDiagnostics()) {
2750	// When generating crash reports, we want to emit the modules along with
2751	// the reproduction sources, so we ignore any provided module path.
2752	Path = Output.getFilename();
2753	llvm::sys::path::replace_extension(Path, ".cache");
2754	llvm::sys::path::append(Path, "modules");
2755	} else if (Path.empty()) {
2756	// No module path was provided: use the default.
2757	Driver::getDefaultModuleCachePath(Path);
2758	}
2759
2760	const char Arg[] = "-fmodules-cache-path=";
2761	Path.insert(Path.begin(), Arg, Arg + strlen(Arg));
2762	CmdArgs.push_back(Args.MakeArgString(Path));
2763	}
2764
2765	if (HaveModules) {
2766	// -fprebuilt-module-path specifies where to load the prebuilt module files.
2767	for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) {
2768	CmdArgs.push_back(Args.MakeArgString(
2769	std::string("-fprebuilt-module-path=") + A->getValue()));
2770	A->claim();
2771	}
2772	}
2773
2774	// -fmodule-name specifies the module that is currently being built (or
2775	// used for header checking by -fmodule-maps).
2776	Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ);
2777
2778	// -fmodule-map-file can be used to specify files containing module
2779	// definitions.
2780	Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file);
2781
2782	// -fbuiltin-module-map can be used to load the clang
2783	// builtin headers modulemap file.
2784	if (Args.hasArg(options::OPT_fbuiltin_module_map)) {
2785	SmallString<128> BuiltinModuleMap(D.ResourceDir);
2786	llvm::sys::path::append(BuiltinModuleMap, "include");
2787	llvm::sys::path::append(BuiltinModuleMap, "module.modulemap");
2788	if (llvm::sys::fs::exists(BuiltinModuleMap))
2789	CmdArgs.push_back(
2790	Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap));
2791	}
2792
2793	// The -fmodule-file=<name>=<file> form specifies the mapping of module
2794	// names to precompiled module files (the module is loaded only if used).
2795	// The -fmodule-file=<file> form can be used to unconditionally load
2796	// precompiled module files (whether used or not).
2797	if (HaveModules)
2798	Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file);
2799	else
2800	Args.ClaimAllArgs(options::OPT_fmodule_file);
2801
2802	// When building modules and generating crashdumps, we need to dump a module
2803	// dependency VFS alongside the output.
2804	if (HaveClangModules && C.isForDiagnostics()) {
2805	SmallString<128> VFSDir(Output.getFilename());
2806	llvm::sys::path::replace_extension(VFSDir, ".cache");
2807	// Add the cache directory as a temp so the crash diagnostics pick it up.
2808	C.addTempFile(Args.MakeArgString(VFSDir));
2809
2810	llvm::sys::path::append(VFSDir, "vfs");
2811	CmdArgs.push_back("-module-dependency-dir");
2812	CmdArgs.push_back(Args.MakeArgString(VFSDir));
2813	}
2814
2815	if (HaveClangModules)
2816	Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path);
2817
2818	// Pass through all -fmodules-ignore-macro arguments.
2819	Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro);
2820	Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval);
2821	Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after);
2822
2823	Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp);
2824
2825	if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) {
2826	if (Args.hasArg(options::OPT_fbuild_session_timestamp))
2827	D.Diag(diag::err_drv_argument_not_allowed_with)
2828	<< A->getAsString(Args) << "-fbuild-session-timestamp";
2829
2830	llvm::sys::fs::file_status Status;
2831	if (llvm::sys::fs::status(A->getValue(), Status))
2832	D.Diag(diag::err_drv_no_such_file) << A->getValue();
2833	CmdArgs.push_back(
2834	Args.MakeArgString("-fbuild-session-timestamp=" +
2835	Twine((uint64_t)Status.getLastModificationTime()
2836	.time_since_epoch()
2837	.count())));
2838	}
2839
2840	if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) {
2841	if (!Args.getLastArg(options::OPT_fbuild_session_timestamp,
2842	options::OPT_fbuild_session_file))
2843	D.Diag(diag::err_drv_modules_validate_once_requires_timestamp);
2844
2845	Args.AddLastArg(CmdArgs,
2846	options::OPT_fmodules_validate_once_per_build_session);
2847	}
2848
2849	if (Args.hasFlag(options::OPT_fmodules_validate_system_headers,
2850	options::OPT_fno_modules_validate_system_headers,
2851	ImplicitModules))
2852	CmdArgs.push_back("-fmodules-validate-system-headers");
2853
2854	Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation);
2855	}
2856
2857	static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T,
2858	ArgStringList &CmdArgs) {
2859	// -fsigned-char is default.
2860	if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char,
2861	options::OPT_fno_signed_char,
2862	options::OPT_funsigned_char,
2863	options::OPT_fno_unsigned_char)) {
2864	if (A->getOption().matches(options::OPT_funsigned_char) \|\|
2865	A->getOption().matches(options::OPT_fno_signed_char)) {
2866	CmdArgs.push_back("-fno-signed-char");
2867	}
2868	} else if (!isSignedCharDefault(T)) {
2869	CmdArgs.push_back("-fno-signed-char");
2870	}
2871
2872	// The default depends on the language standard.
2873	if (const Arg *A =
2874	Args.getLastArg(options::OPT_fchar8__t, options::OPT_fno_char8__t))
2875	A->render(Args, CmdArgs);
2876
2877	if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar,
2878	options::OPT_fno_short_wchar)) {
2879	if (A->getOption().matches(options::OPT_fshort_wchar)) {
2880	CmdArgs.push_back("-fwchar-type=short");
2881	CmdArgs.push_back("-fno-signed-wchar");
2882	} else {
2883	bool IsARM = T.isARM() \|\| T.isThumb() \|\| T.isAArch64();
2884	CmdArgs.push_back("-fwchar-type=int");
2885	if (IsARM && !(T.isOSWindows() \|\| T.isOSNetBSD() \|\|
2886	T.isOSOpenBSD()))
2887	CmdArgs.push_back("-fno-signed-wchar");
2888	else
2889	CmdArgs.push_back("-fsigned-wchar");
2890	}
2891	}
2892	}
2893
2894	static void RenderObjCOptions(const ToolChain &TC, const Driver &D,
2895	const llvm::Triple &T, const ArgList &Args,
2896	ObjCRuntime &Runtime, bool InferCovariantReturns,
2897	const InputInfo &Input, ArgStringList &CmdArgs) {
2898	const llvm::Triple::ArchType Arch = TC.getArch();
2899
2900	// -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy
2901	// is the default. Except for deployment target of 10.5, next runtime is
2902	// always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently.
2903	if (Runtime.isNonFragile()) {
2904	if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch,
2905	options::OPT_fno_objc_legacy_dispatch,
2906	Runtime.isLegacyDispatchDefaultForArch(Arch))) {
2907	if (TC.UseObjCMixedDispatch())
2908	CmdArgs.push_back("-fobjc-dispatch-method=mixed");
2909	else
2910	CmdArgs.push_back("-fobjc-dispatch-method=non-legacy");
2911	}
2912	}
2913
2914	// When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option
2915	// to do Array/Dictionary subscripting by default.
2916	if (Arch == llvm::Triple::x86 && T.isMacOSX() &&
2917	Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily())
2918	CmdArgs.push_back("-fobjc-subscripting-legacy-runtime");
2919
2920	// Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc.
2921	// NOTE: This logic is duplicated in ToolChains.cpp.
2922	if (isObjCAutoRefCount(Args)) {
2923	TC.CheckObjCARC();
2924
2925	CmdArgs.push_back("-fobjc-arc");
2926
2927	// FIXME: It seems like this entire block, and several around it should be
2928	// wrapped in isObjC, but for now we just use it here as this is where it
2929	// was being used previously.
2930	if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) {
2931	if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx)
2932	CmdArgs.push_back("-fobjc-arc-cxxlib=libc++");
2933	else
2934	CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++");
2935	}
2936
2937	// Allow the user to enable full exceptions code emission.
2938	// We default off for Objective-C, on for Objective-C++.
2939	if (Args.hasFlag(options::OPT_fobjc_arc_exceptions,
2940	options::OPT_fno_objc_arc_exceptions,
2941	/default=/types::isCXX(Input.getType())))
2942	CmdArgs.push_back("-fobjc-arc-exceptions");
2943	}
2944
2945	// Silence warning for full exception code emission options when explicitly
2946	// set to use no ARC.
2947	if (Args.hasArg(options::OPT_fno_objc_arc)) {
2948	Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions);
2949	Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions);
2950	}
2951
2952	// Allow the user to control whether messages can be converted to runtime
2953	// functions.
2954	if (types::isObjC(Input.getType())) {
2955	auto *Arg = Args.getLastArg(
2956	options::OPT_fobjc_convert_messages_to_runtime_calls,
2957	options::OPT_fno_objc_convert_messages_to_runtime_calls);
2958	if (Arg &&
2959	Arg->getOption().matches(
2960	options::OPT_fno_objc_convert_messages_to_runtime_calls))
2961	CmdArgs.push_back("-fno-objc-convert-messages-to-runtime-calls");
2962	}
2963
2964	// -fobjc-infer-related-result-type is the default, except in the Objective-C
2965	// rewriter.
2966	if (InferCovariantReturns)
2967	CmdArgs.push_back("-fno-objc-infer-related-result-type");
2968
2969	// Pass down -fobjc-weak or -fno-objc-weak if present.
2970	if (types::isObjC(Input.getType())) {
2971	auto WeakArg =
2972	Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak);
2973	if (!WeakArg) {
2974	// nothing to do
2975	} else if (!Runtime.allowsWeak()) {
2976	if (WeakArg->getOption().matches(options::OPT_fobjc_weak))
2977	D.Diag(diag::err_objc_weak_unsupported);
2978	} else {
2979	WeakArg->render(Args, CmdArgs);
2980	}
2981	}
2982	}
2983
2984	static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args,
2985	ArgStringList &CmdArgs) {
2986	bool CaretDefault = true;
2987	bool ColumnDefault = true;
2988
2989	if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic,
2990	options::OPT__SLASH_diagnostics_column,
2991	options::OPT__SLASH_diagnostics_caret)) {
2992	switch (A->getOption().getID()) {
2993	case options::OPT__SLASH_diagnostics_caret:
2994	CaretDefault = true;
2995	ColumnDefault = true;
2996	break;
2997	case options::OPT__SLASH_diagnostics_column:
2998	CaretDefault = false;
2999	ColumnDefault = true;
3000	break;
3001	case options::OPT__SLASH_diagnostics_classic:
3002	CaretDefault = false;
3003	ColumnDefault = false;
3004	break;
3005	}
3006	}
3007
3008	// -fcaret-diagnostics is default.
3009	if (!Args.hasFlag(options::OPT_fcaret_diagnostics,
3010	options::OPT_fno_caret_diagnostics, CaretDefault))
3011	CmdArgs.push_back("-fno-caret-diagnostics");
3012
3013	// -fdiagnostics-fixit-info is default, only pass non-default.
3014	if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info,
3015	options::OPT_fno_diagnostics_fixit_info))
3016	CmdArgs.push_back("-fno-diagnostics-fixit-info");
3017
3018	// Enable -fdiagnostics-show-option by default.
3019	if (Args.hasFlag(options::OPT_fdiagnostics_show_option,
3020	options::OPT_fno_diagnostics_show_option))
3021	CmdArgs.push_back("-fdiagnostics-show-option");
3022
3023	if (const Arg *A =
3024	Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) {
3025	CmdArgs.push_back("-fdiagnostics-show-category");
3026	CmdArgs.push_back(A->getValue());
3027	}
3028
3029	if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness,
3030	options::OPT_fno_diagnostics_show_hotness, false))
3031	CmdArgs.push_back("-fdiagnostics-show-hotness");
3032
3033	if (const Arg *A =
3034	Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
3035	std::string Opt =
3036	std::string("-fdiagnostics-hotness-threshold=") + A->getValue();
3037	CmdArgs.push_back(Args.MakeArgString(Opt));
3038	}
3039
3040	if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) {
3041	CmdArgs.push_back("-fdiagnostics-format");
3042	CmdArgs.push_back(A->getValue());
3043	}
3044
3045	if (const Arg *A = Args.getLastArg(
3046	options::OPT_fdiagnostics_show_note_include_stack,
3047	options::OPT_fno_diagnostics_show_note_include_stack)) {
3048	const Option &O = A->getOption();
3049	if (O.matches(options::OPT_fdiagnostics_show_note_include_stack))
3050	CmdArgs.push_back("-fdiagnostics-show-note-include-stack");
3051	else
3052	CmdArgs.push_back("-fno-diagnostics-show-note-include-stack");
3053	}
3054
3055	// Color diagnostics are parsed by the driver directly from argv and later
3056	// re-parsed to construct this job; claim any possible color diagnostic here
3057	// to avoid warn_drv_unused_argument and diagnose bad
3058	// OPT_fdiagnostics_color_EQ values.
3059	for (const Arg *A : Args) {
3060	const Option &O = A->getOption();
3061	if (!O.matches(options::OPT_fcolor_diagnostics) &&
3062	!O.matches(options::OPT_fdiagnostics_color) &&
3063	!O.matches(options::OPT_fno_color_diagnostics) &&
3064	!O.matches(options::OPT_fno_diagnostics_color) &&
3065	!O.matches(options::OPT_fdiagnostics_color_EQ))
3066	continue;
3067
3068	if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
3069	StringRef Value(A->getValue());
3070	if (Value != "always" && Value != "never" && Value != "auto")
3071	D.Diag(diag::err_drv_clang_unsupported)
3072	<< ("-fdiagnostics-color=" + Value).str();
3073	}
3074	A->claim();
3075	}
3076
3077	if (D.getDiags().getDiagnosticOptions().ShowColors)
3078	CmdArgs.push_back("-fcolor-diagnostics");
3079
3080	if (Args.hasArg(options::OPT_fansi_escape_codes))
3081	CmdArgs.push_back("-fansi-escape-codes");
3082
3083	if (!Args.hasFlag(options::OPT_fshow_source_location,
3084	options::OPT_fno_show_source_location))
3085	CmdArgs.push_back("-fno-show-source-location");
3086
3087	if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths))
3088	CmdArgs.push_back("-fdiagnostics-absolute-paths");
3089
3090	if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column,
3091	ColumnDefault))
3092	CmdArgs.push_back("-fno-show-column");
3093
3094	if (!Args.hasFlag(options::OPT_fspell_checking,
3095	options::OPT_fno_spell_checking))
3096	CmdArgs.push_back("-fno-spell-checking");
3097	}
3098
3099	enum class DwarfFissionKind { None, Split, Single };
3100
3101	static DwarfFissionKind getDebugFissionKind(const Driver &D,
3102	const ArgList &Args, Arg *&Arg) {
3103	Arg =
3104	Args.getLastArg(options::OPT_gsplit_dwarf, options::OPT_gsplit_dwarf_EQ);
3105	if (!Arg)
3106	return DwarfFissionKind::None;
3107
3108	if (Arg->getOption().matches(options::OPT_gsplit_dwarf))
3109	return DwarfFissionKind::Split;
3110
3111	StringRef Value = Arg->getValue();
3112	if (Value == "split")
3113	return DwarfFissionKind::Split;
3114	if (Value == "single")
3115	return DwarfFissionKind::Single;
3116
3117	D.Diag(diag::err_drv_unsupported_option_argument)
3118	<< Arg->getOption().getName() << Arg->getValue();
3119	return DwarfFissionKind::None;
3120	}
3121
3122	static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
3123	const llvm::Triple &T, const ArgList &Args,
3124	bool EmitCodeView, bool IsWindowsMSVC,
3125	ArgStringList &CmdArgs,
3126	codegenoptions::DebugInfoKind &DebugInfoKind,
3127	DwarfFissionKind &DwarfFission) {
3128	if (Args.hasFlag(options::OPT_fdebug_info_for_profiling,
3129	options::OPT_fno_debug_info_for_profiling, false) &&
3130	checkDebugInfoOption(
3131	Args.getLastArg(options::OPT_fdebug_info_for_profiling), Args, D, TC))
3132	CmdArgs.push_back("-fdebug-info-for-profiling");
3133
3134	// The 'g' groups options involve a somewhat intricate sequence of decisions
3135	// about what to pass from the driver to the frontend, but by the time they
3136	// reach cc1 they've been factored into three well-defined orthogonal choices:
3137	// * what level of debug info to generate
3138	// * what dwarf version to write
3139	// * what debugger tuning to use
3140	// This avoids having to monkey around further in cc1 other than to disable
3141	// codeview if not running in a Windows environment. Perhaps even that
3142	// decision should be made in the driver as well though.
3143	unsigned DWARFVersion = 0;
3144	llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning();
3145
3146	bool SplitDWARFInlining =
3147	Args.hasFlag(options::OPT_fsplit_dwarf_inlining,
3148	options::OPT_fno_split_dwarf_inlining, true);
3149
3150	Args.ClaimAllArgs(options::OPT_g_Group);
3151
3152	Arg* SplitDWARFArg;
3153	DwarfFission = getDebugFissionKind(D, Args, SplitDWARFArg);
3154
3155	if (DwarfFission != DwarfFissionKind::None &&
3156	!checkDebugInfoOption(SplitDWARFArg, Args, D, TC)) {
3157	DwarfFission = DwarfFissionKind::None;
3158	SplitDWARFInlining = false;
3159	}
3160
3161	if (const Arg *A = Args.getLastArg(options::OPT_g_Group)) {
3162	if (checkDebugInfoOption(A, Args, D, TC)) {
3163	// If the last option explicitly specified a debug-info level, use it.
3164	if (A->getOption().matches(options::OPT_gN_Group)) {
3165	DebugInfoKind = DebugLevelToInfoKind(*A);
3166	// If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses.
3167	// But -gsplit-dwarf is not a g_group option, hence we have to check the
3168	// order explicitly. If -gsplit-dwarf wins, we fix DebugInfoKind later.
3169	// This gets a bit more complicated if you've disabled inline info in
3170	// the skeleton CUs (SplitDWARFInlining) - then there's value in
3171	// composing split-dwarf and line-tables-only, so let those compose
3172	// naturally in that case. And if you just turned off debug info,
3173	// (-gsplit-dwarf -g0) - do that.
3174	if (DwarfFission != DwarfFissionKind::None) {
3175	if (A->getIndex() > SplitDWARFArg->getIndex()) {
3176	if (DebugInfoKind == codegenoptions::NoDebugInfo \|\|
3177	DebugInfoKind == codegenoptions::DebugDirectivesOnly \|\|
3178	(DebugInfoKind == codegenoptions::DebugLineTablesOnly &&
3179	SplitDWARFInlining))
3180	DwarfFission = DwarfFissionKind::None;
3181	} else if (SplitDWARFInlining)
3182	DebugInfoKind = codegenoptions::NoDebugInfo;
3183	}
3184	} else {
3185	// For any other 'g' option, use Limited.
3186	DebugInfoKind = codegenoptions::LimitedDebugInfo;
3187	}
3188	} else {
3189	DebugInfoKind = codegenoptions::LimitedDebugInfo;
3190	}
3191	}
3192
3193	// If a debugger tuning argument appeared, remember it.
3194	if (const Arg *A =
3195	Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) {
3196	if (checkDebugInfoOption(A, Args, D, TC)) {
3197	if (A->getOption().matches(options::OPT_glldb))
3198	DebuggerTuning = llvm::DebuggerKind::LLDB;
3199	else if (A->getOption().matches(options::OPT_gsce))
3200	DebuggerTuning = llvm::DebuggerKind::SCE;
3201	else
3202	DebuggerTuning = llvm::DebuggerKind::GDB;
3203	}
3204	}
3205
3206	// If a -gdwarf argument appeared, remember it.
3207	if (const Arg *A =
3208	Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3,
3209	options::OPT_gdwarf_4, options::OPT_gdwarf_5))
3210	if (checkDebugInfoOption(A, Args, D, TC))
3211	DWARFVersion = DwarfVersionNum(A->getSpelling());
3212
3213	if (const Arg *A = Args.getLastArg(options::OPT_gcodeview)) {
3214	if (checkDebugInfoOption(A, Args, D, TC))
3215	EmitCodeView = true;
3216	}
3217
3218	// If the user asked for debug info but did not explicitly specify -gcodeview
3219	// or -gdwarf, ask the toolchain for the default format.
3220	if (!EmitCodeView && DWARFVersion == 0 &&
3221	DebugInfoKind != codegenoptions::NoDebugInfo) {
3222	switch (TC.getDefaultDebugFormat()) {
3223	case codegenoptions::DIF_CodeView:
3224	EmitCodeView = true;
3225	break;
3226	case codegenoptions::DIF_DWARF:
3227	DWARFVersion = TC.GetDefaultDwarfVersion();
3228	break;
3229	}
3230	}
3231
3232	// -gline-directives-only supported only for the DWARF debug info.
3233	if (DWARFVersion == 0 && DebugInfoKind == codegenoptions::DebugDirectivesOnly)
3234	DebugInfoKind = codegenoptions::NoDebugInfo;
3235
3236	// We ignore flag -gstrict-dwarf for now.
3237	// And we handle flag -grecord-gcc-switches later with DWARFDebugFlags.
3238	Args.ClaimAllArgs(options::OPT_g_flags_Group);
3239
3240	// Column info is included by default for everything except SCE and
3241	// CodeView. Clang doesn't track end columns, just starting columns, which,
3242	// in theory, is fine for CodeView (and PDB). In practice, however, the
3243	// Microsoft debuggers don't handle missing end columns well, so it's better
3244	// not to include any column info.
3245	if (const Arg *A = Args.getLastArg(options::OPT_gcolumn_info))
3246	(void)checkDebugInfoOption(A, Args, D, TC);
3247	if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info,
3248	/Default=/!EmitCodeView &&
3249	DebuggerTuning != llvm::DebuggerKind::SCE))
3250	CmdArgs.push_back("-dwarf-column-info");
3251
3252	// FIXME: Move backend command line options to the module.
3253	// If -gline-tables-only or -gline-directives-only is the last option it wins.
3254	if (const Arg *A = Args.getLastArg(options::OPT_gmodules))
3255	if (checkDebugInfoOption(A, Args, D, TC)) {
3256	if (DebugInfoKind != codegenoptions::DebugLineTablesOnly &&
3257	DebugInfoKind != codegenoptions::DebugDirectivesOnly) {
3258	DebugInfoKind = codegenoptions::LimitedDebugInfo;
3259	CmdArgs.push_back("-dwarf-ext-refs");
3260	CmdArgs.push_back("-fmodule-format=obj");
3261	}
3262	}
3263
3264	// -gsplit-dwarf should turn on -g and enable the backend dwarf
3265	// splitting and extraction.
3266	if (T.isOSBinFormatELF()) {
3267	if (!SplitDWARFInlining)
3268	CmdArgs.push_back("-fno-split-dwarf-inlining");
3269
3270	if (DwarfFission != DwarfFissionKind::None) {
3271	if (DebugInfoKind == codegenoptions::NoDebugInfo)
3272	DebugInfoKind = codegenoptions::LimitedDebugInfo;
3273
3274	if (DwarfFission == DwarfFissionKind::Single)
3275	CmdArgs.push_back("-enable-split-dwarf=single");
3276	else
3277	CmdArgs.push_back("-enable-split-dwarf");
3278	}
3279	}
3280
3281	// After we've dealt with all combinations of things that could
3282	// make DebugInfoKind be other than None or DebugLineTablesOnly,
3283	// figure out if we need to "upgrade" it to standalone debug info.
3284	// We parse these two '-f' options whether or not they will be used,
3285	// to claim them even if you wrote "-fstandalone-debug -gline-tables-only"
3286	bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug,
3287	options::OPT_fno_standalone_debug,
3288	TC.GetDefaultStandaloneDebug());
3289	if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug))
3290	(void)checkDebugInfoOption(A, Args, D, TC);
3291	if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug)
3292	DebugInfoKind = codegenoptions::FullDebugInfo;
3293
3294	if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source,
3295	false)) {
3296	// Source embedding is a vendor extension to DWARF v5. By now we have
3297	// checked if a DWARF version was stated explicitly, and have otherwise
3298	// fallen back to the target default, so if this is still not at least 5
3299	// we emit an error.
3300	const Arg *A = Args.getLastArg(options::OPT_gembed_source);
3301	if (DWARFVersion < 5)
3302	D.Diag(diag::err_drv_argument_only_allowed_with)
3303	<< A->getAsString(Args) << "-gdwarf-5";
3304	else if (checkDebugInfoOption(A, Args, D, TC))
3305	CmdArgs.push_back("-gembed-source");
3306	}
3307
3308	if (EmitCodeView) {
3309	CmdArgs.push_back("-gcodeview");
3310
3311	// Emit codeview type hashes if requested.
3312	if (Args.hasFlag(options::OPT_gcodeview_ghash,
3313	options::OPT_gno_codeview_ghash, false)) {
3314	CmdArgs.push_back("-gcodeview-ghash");
3315	}
3316	}
3317
3318	// Adjust the debug info kind for the given toolchain.
3319	TC.adjustDebugInfoKind(DebugInfoKind, Args);
3320
3321	RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion,
3322	DebuggerTuning);
3323
3324	// -fdebug-macro turns on macro debug info generation.
3325	if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro,
3326	false))
3327	if (checkDebugInfoOption(Args.getLastArg(options::OPT_fdebug_macro), Args,
3328	D, TC))
3329	CmdArgs.push_back("-debug-info-macro");
3330
3331	// -ggnu-pubnames turns on gnu style pubnames in the backend.
3332	const auto *PubnamesArg =
3333	Args.getLastArg(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames,
3334	options::OPT_gpubnames, options::OPT_gno_pubnames);
3335	if (DwarfFission != DwarfFissionKind::None \|\|
3336	DebuggerTuning == llvm::DebuggerKind::LLDB \|\|
3337	(PubnamesArg && checkDebugInfoOption(PubnamesArg, Args, D, TC)))
3338	if (!PubnamesArg \|\|
3339	(!PubnamesArg->getOption().matches(options::OPT_gno_gnu_pubnames) &&
3340	!PubnamesArg->getOption().matches(options::OPT_gno_pubnames)))
3341	CmdArgs.push_back(PubnamesArg && PubnamesArg->getOption().matches(
3342	options::OPT_gpubnames)
3343	? "-gpubnames"
3344	: "-ggnu-pubnames");
3345
3346	if (Args.hasFlag(options::OPT_fdebug_ranges_base_address,
3347	options::OPT_fno_debug_ranges_base_address, false)) {
3348	CmdArgs.push_back("-fdebug-ranges-base-address");
3349	}
3350
3351	// -gdwarf-aranges turns on the emission of the aranges section in the
3352	// backend.
3353	// Always enabled for SCE tuning.
3354	bool NeedAranges = DebuggerTuning == llvm::DebuggerKind::SCE;
3355	if (const Arg *A = Args.getLastArg(options::OPT_gdwarf_aranges))
3356	NeedAranges = checkDebugInfoOption(A, Args, D, TC) \|\| NeedAranges;
3357	if (NeedAranges) {
3358	CmdArgs.push_back("-mllvm");
3359	CmdArgs.push_back("-generate-arange-section");
3360	}
3361
3362	if (Args.hasFlag(options::OPT_fdebug_types_section,
3363	options::OPT_fno_debug_types_section, false)) {
3364	if (!T.isOSBinFormatELF()) {
3365	D.Diag(diag::err_drv_unsupported_opt_for_target)
3366	<< Args.getLastArg(options::OPT_fdebug_types_section)
3367	->getAsString(Args)
3368	<< T.getTriple();
3369	} else if (checkDebugInfoOption(
3370	Args.getLastArg(options::OPT_fdebug_types_section), Args, D,
3371	TC)) {
3372	CmdArgs.push_back("-mllvm");
3373	CmdArgs.push_back("-generate-type-units");
3374	}
3375	}
3376
3377	// Decide how to render forward declarations of template instantiations.
3378	// SCE wants full descriptions, others just get them in the name.
3379	if (DebuggerTuning == llvm::DebuggerKind::SCE)
3380	CmdArgs.push_back("-debug-forward-template-params");
3381
3382	// Do we need to explicitly import anonymous namespaces into the parent
3383	// scope?
3384	if (DebuggerTuning == llvm::DebuggerKind::SCE)
3385	CmdArgs.push_back("-dwarf-explicit-import");
3386
3387	RenderDebugInfoCompressionArgs(Args, CmdArgs, D, TC);
3388	}
3389
3390	void Clang::ConstructJob(Compilation &C, const JobAction &JA,
3391	const InputInfo &Output, const InputInfoList &Inputs,
3392	const ArgList &Args, const char *LinkingOutput) const {
3393	const auto &TC = getToolChain();
3394	const llvm::Triple &RawTriple = TC.getTriple();
3395	const llvm::Triple &Triple = TC.getEffectiveTriple();
3396	const std::string &TripleStr = Triple.getTriple();
3397
3398	bool KernelOrKext =
3399	Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext);
3400	const Driver &D = TC.getDriver();
3401	ArgStringList CmdArgs;
3402
3403	// Check number of inputs for sanity. We need at least one input.
3404	(0) . __assert_fail ("Inputs.size() >= 1 && \"Must have at least one input.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3404, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Inputs.size() >= 1 && "Must have at least one input.");
3405	// CUDA/HIP compilation may have multiple inputs (source file + results of
3406	// device-side compilations). OpenMP device jobs also take the host IR as a
3407	// second input. Module precompilation accepts a list of header files to
3408	// include as part of the module. All other jobs are expected to have exactly
3409	// one input.
3410	bool IsCuda = JA.isOffloading(Action::OFK_Cuda);
3411	bool IsHIP = JA.isOffloading(Action::OFK_HIP);
3412	bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP);
3413	bool IsHeaderModulePrecompile = isa<HeaderModulePrecompileJobAction>(JA);
3414
3415	// A header module compilation doesn't have a main input file, so invent a
3416	// fake one as a placeholder.
3417	const char *ModuleName = [&]{
3418	auto *ModuleNameArg = Args.getLastArg(options::OPT_fmodule_name_EQ);
3419	return ModuleNameArg ? ModuleNameArg->getValue() : "";
3420	}();
3421	InputInfo HeaderModuleInput(Inputs[0].getType(), ModuleName, ModuleName);
3422
3423	const InputInfo &Input =
3424	IsHeaderModulePrecompile ? HeaderModuleInput : Inputs[0];
3425
3426	InputInfoList ModuleHeaderInputs;
3427	const InputInfo *CudaDeviceInput = nullptr;
3428	const InputInfo *OpenMPDeviceInput = nullptr;
3429	for (const InputInfo &I : Inputs) {
3430	if (&I == &Input) {
3431	// This is the primary input.
3432	} else if (IsHeaderModulePrecompile &&
3433	types::getPrecompiledType(I.getType()) == types::TY_PCH) {
3434	types::ID Expected = HeaderModuleInput.getType();
3435	if (I.getType() != Expected) {
3436	D.Diag(diag::err_drv_module_header_wrong_kind)
3437	<< I.getFilename() << types::getTypeName(I.getType())
3438	<< types::getTypeName(Expected);
3439	}
3440	ModuleHeaderInputs.push_back(I);
3441	} else if ((IsCuda \|\| IsHIP) && !CudaDeviceInput) {
3442	CudaDeviceInput = &I;
3443	} else if (IsOpenMPDevice && !OpenMPDeviceInput) {
3444	OpenMPDeviceInput = &I;
3445	} else {
3446	llvm_unreachable("unexpectedly given multiple inputs");
3447	}
3448	}
3449
3450	const llvm::Triple *AuxTriple = IsCuda ? TC.getAuxTriple() : nullptr;
3451	bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment();
3452	bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment();
3453	bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment();
3454	bool IsIAMCU = RawTriple.isOSIAMCU();
3455
3456	// Adjust IsWindowsXYZ for CUDA/HIP compilations. Even when compiling in
3457	// device mode (i.e., getToolchain().getTriple() is NVPTX/AMDGCN, not
3458	// Windows), we need to pass Windows-specific flags to cc1.
3459	if (IsCuda \|\| IsHIP) {
3460	IsWindowsMSVC \|= AuxTriple && AuxTriple->isWindowsMSVCEnvironment();
3461	IsWindowsGNU \|= AuxTriple && AuxTriple->isWindowsGNUEnvironment();
3462	IsWindowsCygnus \|= AuxTriple && AuxTriple->isWindowsCygwinEnvironment();
3463	}
3464
3465	// C++ is not supported for IAMCU.
3466	if (IsIAMCU && types::isCXX(Input.getType()))
3467	D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU";
3468
3469	// Invoke ourselves in -cc1 mode.
3470	//
3471	// FIXME: Implement custom jobs for internal actions.
3472	CmdArgs.push_back("-cc1");
3473
3474	// Add the "effective" target triple.
3475	CmdArgs.push_back("-triple");
3476	CmdArgs.push_back(Args.MakeArgString(TripleStr));
3477
3478	if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) {
3479	DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args);
3480	Args.ClaimAllArgs(options::OPT_MJ);
3481	}
3482
3483	if (IsCuda \|\| IsHIP) {
3484	// We have to pass the triple of the host if compiling for a CUDA/HIP device
3485	// and vice-versa.
3486	std::string NormalizedTriple;
3487	if (JA.isDeviceOffloading(Action::OFK_Cuda) \|\|
3488	JA.isDeviceOffloading(Action::OFK_HIP))
3489	NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>()
3490	->getTriple()
3491	.normalize();
3492	else {
3493	// Host-side compilation.
3494	NormalizedTriple =
3495	(IsCuda ? C.getSingleOffloadToolChain<Action::OFK_Cuda>()
3496	: C.getSingleOffloadToolChain<Action::OFK_HIP>())
3497	->getTriple()
3498	.normalize();
3499	if (IsCuda) {
3500	// We need to figure out which CUDA version we're compiling for, as that
3501	// determines how we load and launch GPU kernels.
3502	auto CTC = static_cast<const toolchains::CudaToolChain >(
3503	C.getSingleOffloadToolChain<Action::OFK_Cuda>());
3504	(0) . __assert_fail ("CTC && \"Expected valid CUDA Toolchain.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3504, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(CTC && "Expected valid CUDA Toolchain.");
3505	if (CTC && CTC->CudaInstallation.version() != CudaVersion::UNKNOWN)
3506	CmdArgs.push_back(Args.MakeArgString(
3507	Twine("-target-sdk-version=") +
3508	CudaVersionToString(CTC->CudaInstallation.version())));
3509	}
3510	}
3511	CmdArgs.push_back("-aux-triple");
3512	CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
3513	}
3514
3515	if (IsOpenMPDevice) {
3516	// We have to pass the triple of the host if compiling for an OpenMP device.
3517	std::string NormalizedTriple =
3518	C.getSingleOffloadToolChain<Action::OFK_Host>()
3519	->getTriple()
3520	.normalize();
3521	CmdArgs.push_back("-aux-triple");
3522	CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
3523	}
3524
3525	if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm \|\|
3526	Triple.getArch() == llvm::Triple::thumb)) {
3527	unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6;
3528	unsigned Version;
3529	Triple.getArchName().substr(Offset).getAsInteger(10, Version);
3530	if (Version < 7)
3531	D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName()
3532	<< TripleStr;
3533	}
3534
3535	// Push all default warning arguments that are specific to
3536	// the given target. These come before user provided warning options
3537	// are provided.
3538	TC.addClangWarningOptions(CmdArgs);
3539
3540	// Select the appropriate action.
3541	RewriteKind rewriteKind = RK_None;
3542
3543	if (isa<AnalyzeJobAction>(JA)) {
3544	(0) . __assert_fail ("JA.getType() == types..TY_Plist && \"Invalid output type.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3544, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(JA.getType() == types::TY_Plist && "Invalid output type.");
3545	CmdArgs.push_back("-analyze");
3546	} else if (isa<MigrateJobAction>(JA)) {
3547	CmdArgs.push_back("-migrate");
3548	} else if (isa<PreprocessJobAction>(JA)) {
3549	if (Output.getType() == types::TY_Dependencies)
3550	CmdArgs.push_back("-Eonly");
3551	else {
3552	CmdArgs.push_back("-E");
3553	if (Args.hasArg(options::OPT_rewrite_objc) &&
3554	!Args.hasArg(options::OPT_g_Group))
3555	CmdArgs.push_back("-P");
3556	}
3557	} else if (isa<AssembleJobAction>(JA)) {
3558	CmdArgs.push_back("-emit-obj");
3559
3560	CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D);
3561
3562	// Also ignore explicit -force_cpusubtype_ALL option.
3563	(void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
3564	} else if (isa<PrecompileJobAction>(JA)) {
3565	if (JA.getType() == types::TY_Nothing)
3566	CmdArgs.push_back("-fsyntax-only");
3567	else if (JA.getType() == types::TY_ModuleFile)
3568	CmdArgs.push_back(IsHeaderModulePrecompile
3569	? "-emit-header-module"
3570	: "-emit-module-interface");
3571	else
3572	CmdArgs.push_back("-emit-pch");
3573	} else if (isa<VerifyPCHJobAction>(JA)) {
3574	CmdArgs.push_back("-verify-pch");
3575	} else {
3576	(0) . __assert_fail ("(isa(JA) \|\| isa(JA)) && \"Invalid action for clang tool.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3577, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert((isa<CompileJobAction>(JA) \|\| isa<BackendJobAction>(JA)) &&
3577	(0) . __assert_fail ("(isa(JA) \|\| isa(JA)) && \"Invalid action for clang tool.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3577, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true"> "Invalid action for clang tool.");
3578	if (JA.getType() == types::TY_Nothing) {
3579	CmdArgs.push_back("-fsyntax-only");
3580	} else if (JA.getType() == types::TY_LLVM_IR \|\|
3581	JA.getType() == types::TY_LTO_IR) {
3582	CmdArgs.push_back("-emit-llvm");
3583	} else if (JA.getType() == types::TY_LLVM_BC \|\|
3584	JA.getType() == types::TY_LTO_BC) {
3585	CmdArgs.push_back("-emit-llvm-bc");
3586	} else if (JA.getType() == types::TY_PP_Asm) {
3587	CmdArgs.push_back("-S");
3588	} else if (JA.getType() == types::TY_AST) {
3589	CmdArgs.push_back("-emit-pch");
3590	} else if (JA.getType() == types::TY_ModuleFile) {
3591	CmdArgs.push_back("-module-file-info");
3592	} else if (JA.getType() == types::TY_RewrittenObjC) {
3593	CmdArgs.push_back("-rewrite-objc");
3594	rewriteKind = RK_NonFragile;
3595	} else if (JA.getType() == types::TY_RewrittenLegacyObjC) {
3596	CmdArgs.push_back("-rewrite-objc");
3597	rewriteKind = RK_Fragile;
3598	} else {
3599	(0) . __assert_fail ("JA.getType() == types..TY_PP_Asm && \"Unexpected output type!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3599, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!");
3600	}
3601
3602	// Preserve use-list order by default when emitting bitcode, so that
3603	// loading the bitcode up in 'opt' or 'llc' and running passes gives the
3604	// same result as running passes here. For LTO, we don't need to preserve
3605	// the use-list order, since serialization to bitcode is part of the flow.
3606	if (JA.getType() == types::TY_LLVM_BC)
3607	CmdArgs.push_back("-emit-llvm-uselists");
3608
3609	// Device-side jobs do not support LTO.
3610	bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) \|\|
3611	JA.isDeviceOffloading(Action::OFK_Host));
3612
3613	if (D.isUsingLTO() && !isDeviceOffloadAction) {
3614	Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ);
3615
3616	// The Darwin and PS4 linkers currently use the legacy LTO API, which
3617	// does not support LTO unit features (CFI, whole program vtable opt)
3618	// under ThinLTO.
3619	if (!(RawTriple.isOSDarwin() \|\| RawTriple.isPS4()) \|\|
3620	D.getLTOMode() == LTOK_Full)
3621	CmdArgs.push_back("-flto-unit");
3622	}
3623	}
3624
3625	if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) {
3626	if (!types::isLLVMIR(Input.getType()))
3627	D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args)
3628	<< "-x ir";
3629	Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ);
3630	}
3631
3632	if (Args.getLastArg(options::OPT_save_temps_EQ))
3633	Args.AddLastArg(CmdArgs, options::OPT_save_temps_EQ);
3634
3635	// Embed-bitcode option.
3636	// Only white-listed flags below are allowed to be embedded.
3637	if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() &&
3638	(isa<BackendJobAction>(JA) \|\| isa<AssembleJobAction>(JA))) {
3639	// Add flags implied by -fembed-bitcode.
3640	Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
3641	// Disable all llvm IR level optimizations.
3642	CmdArgs.push_back("-disable-llvm-passes");
3643
3644	// reject options that shouldn't be supported in bitcode
3645	// also reject kernel/kext
3646	static const constexpr unsigned kBitcodeOptionBlacklist[] = {
3647	options::OPT_mkernel,
3648	options::OPT_fapple_kext,
3649	options::OPT_ffunction_sections,
3650	options::OPT_fno_function_sections,
3651	options::OPT_fdata_sections,
3652	options::OPT_fno_data_sections,
3653	options::OPT_funique_section_names,
3654	options::OPT_fno_unique_section_names,
3655	options::OPT_mrestrict_it,
3656	options::OPT_mno_restrict_it,
3657	options::OPT_mstackrealign,
3658	options::OPT_mno_stackrealign,
3659	options::OPT_mstack_alignment,
3660	options::OPT_mcmodel_EQ,
3661	options::OPT_mlong_calls,
3662	options::OPT_mno_long_calls,
3663	options::OPT_ggnu_pubnames,
3664	options::OPT_gdwarf_aranges,
3665	options::OPT_fdebug_types_section,
3666	options::OPT_fno_debug_types_section,
3667	options::OPT_fdwarf_directory_asm,
3668	options::OPT_fno_dwarf_directory_asm,
3669	options::OPT_mrelax_all,
3670	options::OPT_mno_relax_all,
3671	options::OPT_ftrap_function_EQ,
3672	options::OPT_ffixed_r9,
3673	options::OPT_mfix_cortex_a53_835769,
3674	options::OPT_mno_fix_cortex_a53_835769,
3675	options::OPT_ffixed_x18,
3676	options::OPT_mglobal_merge,
3677	options::OPT_mno_global_merge,
3678	options::OPT_mred_zone,
3679	options::OPT_mno_red_zone,
3680	options::OPT_Wa_COMMA,
3681	options::OPT_Xassembler,
3682	options::OPT_mllvm,
3683	};
3684	for (const auto &A : Args)
3685	if (std::find(std::begin(kBitcodeOptionBlacklist),
3686	std::end(kBitcodeOptionBlacklist),
3687	A->getOption().getID()) !=
3688	std::end(kBitcodeOptionBlacklist))
3689	D.Diag(diag::err_drv_unsupported_embed_bitcode) << A->getSpelling();
3690
3691	// Render the CodeGen options that need to be passed.
3692	if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
3693	options::OPT_fno_optimize_sibling_calls))
3694	CmdArgs.push_back("-mdisable-tail-calls");
3695
3696	RenderFloatingPointOptions(TC, D, isOptimizationLevelFast(Args), Args,
3697	CmdArgs);
3698
3699	// Render ABI arguments
3700	switch (TC.getArch()) {
3701	default: break;
3702	case llvm::Triple::arm:
3703	case llvm::Triple::armeb:
3704	case llvm::Triple::thumbeb:
3705	RenderARMABI(Triple, Args, CmdArgs);
3706	break;
3707	case llvm::Triple::aarch64:
3708	case llvm::Triple::aarch64_be:
3709	RenderAArch64ABI(Triple, Args, CmdArgs);
3710	break;
3711	}
3712
3713	// Optimization level for CodeGen.
3714	if (const Arg *A = Args.getLastArg(options::OPT_O_Group)) {
3715	if (A->getOption().matches(options::OPT_O4)) {
3716	CmdArgs.push_back("-O3");
3717	D.Diag(diag::warn_O4_is_O3);
3718	} else {
3719	A->render(Args, CmdArgs);
3720	}
3721	}
3722
3723	// Input/Output file.
3724	if (Output.getType() == types::TY_Dependencies) {
3725	// Handled with other dependency code.
3726	} else if (Output.isFilename()) {
3727	CmdArgs.push_back("-o");
3728	CmdArgs.push_back(Output.getFilename());
3729	} else {
3730	(0) . __assert_fail ("Output.isNothing() && \"Input output.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3730, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Output.isNothing() && "Input output.");
3731	}
3732
3733	for (const auto &II : Inputs) {
3734	addDashXForInput(Args, II, CmdArgs);
3735	if (II.isFilename())
3736	CmdArgs.push_back(II.getFilename());
3737	else
3738	II.getInputArg().renderAsInput(Args, CmdArgs);
3739	}
3740
3741	C.addCommand(llvm::make_unique<Command>(JA, *this, D.getClangProgramPath(),
3742	CmdArgs, Inputs));
3743	return;
3744	}
3745
3746	if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO())
3747	CmdArgs.push_back("-fembed-bitcode=marker");
3748
3749	// We normally speed up the clang process a bit by skipping destructors at
3750	// exit, but when we're generating diagnostics we can rely on some of the
3751	// cleanup.
3752	if (!C.isForDiagnostics())
3753	CmdArgs.push_back("-disable-free");
3754
3755	#ifdef NDEBUG
3756	const bool IsAssertBuild = false;
3757	#else
3758	const bool IsAssertBuild = true;
3759	#endif
3760
3761	// Disable the verification pass in -asserts builds.
3762	if (!IsAssertBuild)
3763	CmdArgs.push_back("-disable-llvm-verifier");
3764
3765	// Discard value names in assert builds unless otherwise specified.
3766	if (Args.hasFlag(options::OPT_fdiscard_value_names,
3767	options::OPT_fno_discard_value_names, !IsAssertBuild))
3768	CmdArgs.push_back("-discard-value-names");
3769
3770	// Set the main file name, so that debug info works even with
3771	// -save-temps.
3772	CmdArgs.push_back("-main-file-name");
3773	CmdArgs.push_back(getBaseInputName(Args, Input));
3774
3775	// Some flags which affect the language (via preprocessor
3776	// defines).
3777	if (Args.hasArg(options::OPT_static))
3778	CmdArgs.push_back("-static-define");
3779
3780	if (Args.hasArg(options::OPT_municode))
3781	CmdArgs.push_back("-DUNICODE");
3782
3783	if (isa<AnalyzeJobAction>(JA))
3784	RenderAnalyzerOptions(Args, CmdArgs, Triple, Input);
3785
3786	// Enable compatilibily mode to avoid analyzer-config related errors.
3787	// Since we can't access frontend flags through hasArg, let's manually iterate
3788	// through them.
3789	bool FoundAnalyzerConfig = false;
3790	for (auto Arg : Args.filtered(options::OPT_Xclang))
3791	if (StringRef(Arg->getValue()) == "-analyzer-config") {
3792	FoundAnalyzerConfig = true;
3793	break;
3794	}
3795	if (!FoundAnalyzerConfig)
3796	for (auto Arg : Args.filtered(options::OPT_Xanalyzer))
3797	if (StringRef(Arg->getValue()) == "-analyzer-config") {
3798	FoundAnalyzerConfig = true;
3799	break;
3800	}
3801	if (FoundAnalyzerConfig)
3802	CmdArgs.push_back("-analyzer-config-compatibility-mode=true");
3803
3804	CheckCodeGenerationOptions(D, Args);
3805
3806	unsigned FunctionAlignment = ParseFunctionAlignment(TC, Args);
3807	(0) . __assert_fail ("FunctionAlignment <= 31 && \"function alignment will be truncated!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3807, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(FunctionAlignment <= 31 && "function alignment will be truncated!");
3808	if (FunctionAlignment) {
3809	CmdArgs.push_back("-function-alignment");
3810	CmdArgs.push_back(Args.MakeArgString(std::to_string(FunctionAlignment)));
3811	}
3812
3813	llvm::Reloc::Model RelocationModel;
3814	unsigned PICLevel;
3815	bool IsPIE;
3816	std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(TC, Args);
3817
3818	const char *RMName = RelocationModelName(RelocationModel);
3819
3820	if ((RelocationModel == llvm::Reloc::ROPI \|\|
3821	RelocationModel == llvm::Reloc::ROPI_RWPI) &&
3822	types::isCXX(Input.getType()) &&
3823	!Args.hasArg(options::OPT_fallow_unsupported))
3824	D.Diag(diag::err_drv_ropi_incompatible_with_cxx);
3825
3826	if (RMName) {
3827	CmdArgs.push_back("-mrelocation-model");
3828	CmdArgs.push_back(RMName);
3829	}
3830	if (PICLevel > 0) {
3831	CmdArgs.push_back("-pic-level");
3832	CmdArgs.push_back(PICLevel == 1 ? "1" : "2");
3833	if (IsPIE)
3834	CmdArgs.push_back("-pic-is-pie");
3835	}
3836
3837	if (RelocationModel == llvm::Reloc::ROPI \|\|
3838	RelocationModel == llvm::Reloc::ROPI_RWPI)
3839	CmdArgs.push_back("-fropi");
3840	if (RelocationModel == llvm::Reloc::RWPI \|\|
3841	RelocationModel == llvm::Reloc::ROPI_RWPI)
3842	CmdArgs.push_back("-frwpi");
3843
3844	if (Arg *A = Args.getLastArg(options::OPT_meabi)) {
3845	CmdArgs.push_back("-meabi");
3846	CmdArgs.push_back(A->getValue());
3847	}
3848
3849	CmdArgs.push_back("-mthread-model");
3850	if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) {
3851	if (!TC.isThreadModelSupported(A->getValue()))
3852	D.Diag(diag::err_drv_invalid_thread_model_for_target)
3853	<< A->getValue() << A->getAsString(Args);
3854	CmdArgs.push_back(A->getValue());
3855	}
3856	else
3857	CmdArgs.push_back(Args.MakeArgString(TC.getThreadModel()));
3858
3859	Args.AddLastArg(CmdArgs, options::OPT_fveclib);
3860
3861	if (Args.hasFlag(options::OPT_fmerge_all_constants,
3862	options::OPT_fno_merge_all_constants, false))
3863	CmdArgs.push_back("-fmerge-all-constants");
3864
3865	if (Args.hasFlag(options::OPT_fno_delete_null_pointer_checks,
3866	options::OPT_fdelete_null_pointer_checks, false))
3867	CmdArgs.push_back("-fno-delete-null-pointer-checks");
3868
3869	// LLVM Code Generator Options.
3870
3871	if (Args.hasArg(options::OPT_frewrite_map_file) \|\|
3872	Args.hasArg(options::OPT_frewrite_map_file_EQ)) {
3873	for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file,
3874	options::OPT_frewrite_map_file_EQ)) {
3875	StringRef Map = A->getValue();
3876	if (!llvm::sys::fs::exists(Map)) {
3877	D.Diag(diag::err_drv_no_such_file) << Map;
3878	} else {
3879	CmdArgs.push_back("-frewrite-map-file");
3880	CmdArgs.push_back(A->getValue());
3881	A->claim();
3882	}
3883	}
3884	}
3885
3886	if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) {
3887	StringRef v = A->getValue();
3888	CmdArgs.push_back("-mllvm");
3889	CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v));
3890	A->claim();
3891	}
3892
3893	if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables,
3894	true))
3895	CmdArgs.push_back("-fno-jump-tables");
3896
3897	if (Args.hasFlag(options::OPT_fprofile_sample_accurate,
3898	options::OPT_fno_profile_sample_accurate, false))
3899	CmdArgs.push_back("-fprofile-sample-accurate");
3900
3901	if (!Args.hasFlag(options::OPT_fpreserve_as_comments,
3902	options::OPT_fno_preserve_as_comments, true))
3903	CmdArgs.push_back("-fno-preserve-as-comments");
3904
3905	if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
3906	CmdArgs.push_back("-mregparm");
3907	CmdArgs.push_back(A->getValue());
3908	}
3909
3910	if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return,
3911	options::OPT_freg_struct_return)) {
3912	if (TC.getArch() != llvm::Triple::x86) {
3913	D.Diag(diag::err_drv_unsupported_opt_for_target)
3914	<< A->getSpelling() << RawTriple.str();
3915	} else if (A->getOption().matches(options::OPT_fpcc_struct_return)) {
3916	CmdArgs.push_back("-fpcc-struct-return");
3917	} else {
3918	getOption().matches(options..OPT_freg_struct_return)", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 3918, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(A->getOption().matches(options::OPT_freg_struct_return));
3919	CmdArgs.push_back("-freg-struct-return");
3920	}
3921	}
3922
3923	if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false))
3924	CmdArgs.push_back("-fdefault-calling-conv=stdcall");
3925
3926	if (shouldUseFramePointer(Args, RawTriple))
3927	CmdArgs.push_back("-mdisable-fp-elim");
3928	if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
3929	options::OPT_fno_zero_initialized_in_bss))
3930	CmdArgs.push_back("-mno-zero-initialized-in-bss");
3931
3932	bool OFastEnabled = isOptimizationLevelFast(Args);
3933	// If -Ofast is the optimization level, then -fstrict-aliasing should be
3934	// enabled. This alias option is being used to simplify the hasFlag logic.
3935	OptSpecifier StrictAliasingAliasOption =
3936	OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing;
3937	// We turn strict aliasing off by default if we're in CL mode, since MSVC
3938	// doesn't do any TBAA.
3939	bool TBAAOnByDefault = !D.IsCLMode();
3940	if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption,
3941	options::OPT_fno_strict_aliasing, TBAAOnByDefault))
3942	CmdArgs.push_back("-relaxed-aliasing");
3943	if (!Args.hasFlag(options::OPT_fstruct_path_tbaa,
3944	options::OPT_fno_struct_path_tbaa))
3945	CmdArgs.push_back("-no-struct-path-tbaa");
3946	if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums,
3947	false))
3948	CmdArgs.push_back("-fstrict-enums");
3949	if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return,
3950	true))
3951	CmdArgs.push_back("-fno-strict-return");
3952	if (Args.hasFlag(options::OPT_fallow_editor_placeholders,
3953	options::OPT_fno_allow_editor_placeholders, false))
3954	CmdArgs.push_back("-fallow-editor-placeholders");
3955	if (Args.hasFlag(options::OPT_fstrict_vtable_pointers,
3956	options::OPT_fno_strict_vtable_pointers,
3957	false))
3958	CmdArgs.push_back("-fstrict-vtable-pointers");
3959	if (Args.hasFlag(options::OPT_fforce_emit_vtables,
3960	options::OPT_fno_force_emit_vtables,
3961	false))
3962	CmdArgs.push_back("-fforce-emit-vtables");
3963	if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
3964	options::OPT_fno_optimize_sibling_calls))
3965	CmdArgs.push_back("-mdisable-tail-calls");
3966	if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls,
3967	options::OPT_fescaping_block_tail_calls, false))
3968	CmdArgs.push_back("-fno-escaping-block-tail-calls");
3969
3970	Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses,
3971	options::OPT_fno_fine_grained_bitfield_accesses);
3972
3973	// Handle segmented stacks.
3974	if (Args.hasArg(options::OPT_fsplit_stack))
3975	CmdArgs.push_back("-split-stacks");
3976
3977	RenderFloatingPointOptions(TC, D, OFastEnabled, Args, CmdArgs);
3978
3979	// Decide whether to use verbose asm. Verbose assembly is the default on
3980	// toolchains which have the integrated assembler on by default.
3981	bool IsIntegratedAssemblerDefault = TC.IsIntegratedAssemblerDefault();
3982	if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
3983	IsIntegratedAssemblerDefault) \|\|
3984	Args.hasArg(options::OPT_dA))
3985	CmdArgs.push_back("-masm-verbose");
3986
3987	if (!TC.useIntegratedAs())
3988	CmdArgs.push_back("-no-integrated-as");
3989
3990	if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
3991	CmdArgs.push_back("-mdebug-pass");
3992	CmdArgs.push_back("Structure");
3993	}
3994	if (Args.hasArg(options::OPT_fdebug_pass_arguments)) {
3995	CmdArgs.push_back("-mdebug-pass");
3996	CmdArgs.push_back("Arguments");
3997	}
3998
3999	// Enable -mconstructor-aliases except on darwin, where we have to work around
4000	// a linker bug (see <rdar://problem/7651567>), and CUDA device code, where
4001	// aliases aren't supported.
4002	if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX())
4003	CmdArgs.push_back("-mconstructor-aliases");
4004
4005	// Darwin's kernel doesn't support guard variables; just die if we
4006	// try to use them.
4007	if (KernelOrKext && RawTriple.isOSDarwin())
4008	CmdArgs.push_back("-fforbid-guard-variables");
4009
4010	if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields,
4011	false)) {
4012	CmdArgs.push_back("-mms-bitfields");
4013	}
4014
4015	if (Args.hasFlag(options::OPT_mpie_copy_relocations,
4016	options::OPT_mno_pie_copy_relocations,
4017	false)) {
4018	CmdArgs.push_back("-mpie-copy-relocations");
4019	}
4020
4021	if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) {
4022	CmdArgs.push_back("-fno-plt");
4023	}
4024
4025	// -fhosted is default.
4026	// TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to
4027	// use Freestanding.
4028	bool Freestanding =
4029	Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) \|\|
4030	KernelOrKext;
4031	if (Freestanding)
4032	CmdArgs.push_back("-ffreestanding");
4033
4034	// This is a coarse approximation of what llvm-gcc actually does, both
4035	// -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
4036	// complicated ways.
4037	bool AsynchronousUnwindTables =
4038	Args.hasFlag(options::OPT_fasynchronous_unwind_tables,
4039	options::OPT_fno_asynchronous_unwind_tables,
4040	(TC.IsUnwindTablesDefault(Args) \|\|
4041	TC.getSanitizerArgs().needsUnwindTables()) &&
4042	!Freestanding);
4043	if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables,
4044	AsynchronousUnwindTables))
4045	CmdArgs.push_back("-munwind-tables");
4046
4047	TC.addClangTargetOptions(Args, CmdArgs, JA.getOffloadingDeviceKind());
4048
4049	// FIXME: Handle -mtune=.
4050	(void)Args.hasArg(options::OPT_mtune_EQ);
4051
4052	if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
4053	CmdArgs.push_back("-mcode-model");
4054	CmdArgs.push_back(A->getValue());
4055	}
4056
4057	// Add the target cpu
4058	std::string CPU = getCPUName(Args, Triple, /FromAs/ false);
4059	if (!CPU.empty()) {
4060	CmdArgs.push_back("-target-cpu");
4061	CmdArgs.push_back(Args.MakeArgString(CPU));
4062	}
4063
4064	RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs);
4065
4066	// These two are potentially updated by AddClangCLArgs.
4067	codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
4068	bool EmitCodeView = false;
4069
4070	// Add clang-cl arguments.
4071	types::ID InputType = Input.getType();
4072	if (D.IsCLMode())
4073	AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView);
4074
4075	DwarfFissionKind DwarfFission;
4076	RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, IsWindowsMSVC,
4077	CmdArgs, DebugInfoKind, DwarfFission);
4078
4079	// Add the split debug info name to the command lines here so we
4080	// can propagate it to the backend.
4081	bool SplitDWARF = (DwarfFission != DwarfFissionKind::None) &&
4082	TC.getTriple().isOSBinFormatELF() &&
4083	(isa<AssembleJobAction>(JA) \|\| isa<CompileJobAction>(JA) \|\|
4084	isa<BackendJobAction>(JA));
4085	const char *SplitDWARFOut;
4086	if (SplitDWARF) {
4087	CmdArgs.push_back("-split-dwarf-file");
4088	SplitDWARFOut = SplitDebugName(Args, Input, Output);
4089	CmdArgs.push_back(SplitDWARFOut);
4090	}
4091
4092	// Pass the linker version in use.
4093	if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) {
4094	CmdArgs.push_back("-target-linker-version");
4095	CmdArgs.push_back(A->getValue());
4096	}
4097
4098	if (!shouldUseLeafFramePointer(Args, RawTriple))
4099	CmdArgs.push_back("-momit-leaf-frame-pointer");
4100
4101	// Explicitly error on some things we know we don't support and can't just
4102	// ignore.
4103	if (!Args.hasArg(options::OPT_fallow_unsupported)) {
4104	Arg *Unsupported;
4105	if (types::isCXX(InputType) && RawTriple.isOSDarwin() &&
4106	TC.getArch() == llvm::Triple::x86) {
4107	if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) \|\|
4108	(Unsupported = Args.getLastArg(options::OPT_mkernel)))
4109	D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386)
4110	<< Unsupported->getOption().getName();
4111	}
4112	// The faltivec option has been superseded by the maltivec option.
4113	if ((Unsupported = Args.getLastArg(options::OPT_faltivec)))
4114	D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
4115	<< Unsupported->getOption().getName()
4116	<< "please use -maltivec and include altivec.h explicitly";
4117	if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec)))
4118	D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
4119	<< Unsupported->getOption().getName() << "please use -mno-altivec";
4120	}
4121
4122	Args.AddAllArgs(CmdArgs, options::OPT_v);
4123	Args.AddLastArg(CmdArgs, options::OPT_H);
4124	if (D.CCPrintHeaders && !D.CCGenDiagnostics) {
4125	CmdArgs.push_back("-header-include-file");
4126	CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename
4127	: "-");
4128	}
4129	Args.AddLastArg(CmdArgs, options::OPT_P);
4130	Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout);
4131
4132	if (D.CCLogDiagnostics && !D.CCGenDiagnostics) {
4133	CmdArgs.push_back("-diagnostic-log-file");
4134	CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename
4135	: "-");
4136	}
4137
4138	bool UseSeparateSections = isUseSeparateSections(Triple);
4139
4140	if (Args.hasFlag(options::OPT_ffunction_sections,
4141	options::OPT_fno_function_sections, UseSeparateSections)) {
4142	CmdArgs.push_back("-ffunction-sections");
4143	}
4144
4145	if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections,
4146	UseSeparateSections)) {
4147	CmdArgs.push_back("-fdata-sections");
4148	}
4149
4150	if (!Args.hasFlag(options::OPT_funique_section_names,
4151	options::OPT_fno_unique_section_names, true))
4152	CmdArgs.push_back("-fno-unique-section-names");
4153
4154	if (auto *A = Args.getLastArg(
4155	options::OPT_finstrument_functions,
4156	options::OPT_finstrument_functions_after_inlining,
4157	options::OPT_finstrument_function_entry_bare))
4158	A->render(Args, CmdArgs);
4159
4160	// NVPTX doesn't support PGO or coverage. There's no runtime support for
4161	// sampling, overhead of call arc collection is way too high and there's no
4162	// way to collect the output.
4163	if (!Triple.isNVPTX())
4164	addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs);
4165
4166	if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ))
4167	ABICompatArg->render(Args, CmdArgs);
4168
4169	// Add runtime flag for PS4 when PGO, coverage, or sanitizers are enabled.
4170	if (RawTriple.isPS4CPU() &&
4171	!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
4172	PS4cpu::addProfileRTArgs(TC, Args, CmdArgs);
4173	PS4cpu::addSanitizerArgs(TC, CmdArgs);
4174	}
4175
4176	// Pass options for controlling the default header search paths.
4177	if (Args.hasArg(options::OPT_nostdinc)) {
4178	CmdArgs.push_back("-nostdsysteminc");
4179	CmdArgs.push_back("-nobuiltininc");
4180	} else {
4181	if (Args.hasArg(options::OPT_nostdlibinc))
4182	CmdArgs.push_back("-nostdsysteminc");
4183	Args.AddLastArg(CmdArgs, options::OPT_nostdincxx);
4184	Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc);
4185	}
4186
4187	// Pass the path to compiler resource files.
4188	CmdArgs.push_back("-resource-dir");
4189	CmdArgs.push_back(D.ResourceDir.c_str());
4190
4191	Args.AddLastArg(CmdArgs, options::OPT_working_directory);
4192
4193	RenderARCMigrateToolOptions(D, Args, CmdArgs);
4194
4195	// Add preprocessing options like -I, -D, etc. if we are using the
4196	// preprocessor.
4197	//
4198	// FIXME: Support -fpreprocessed
4199	if (types::getPreprocessedType(InputType) != types::TY_INVALID)
4200	AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs);
4201
4202	// Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes
4203	// that "The compiler can only warn and ignore the option if not recognized".
4204	// When building with ccache, it will pass -D options to clang even on
4205	// preprocessed inputs and configure concludes that -fPIC is not supported.
4206	Args.ClaimAllArgs(options::OPT_D);
4207
4208	// Manually translate -O4 to -O3; let clang reject others.
4209	if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
4210	if (A->getOption().matches(options::OPT_O4)) {
4211	CmdArgs.push_back("-O3");
4212	D.Diag(diag::warn_O4_is_O3);
4213	} else {
4214	A->render(Args, CmdArgs);
4215	}
4216	}
4217
4218	// Warn about ignored options to clang.
4219	for (const Arg *A :
4220	Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) {
4221	D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args);
4222	A->claim();
4223	}
4224
4225	for (const Arg *A :
4226	Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) {
4227	D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args);
4228	A->claim();
4229	}
4230
4231	claimNoWarnArgs(Args);
4232
4233	Args.AddAllArgs(CmdArgs, options::OPT_R_Group);
4234
4235	Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
4236	if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false))
4237	CmdArgs.push_back("-pedantic");
4238	Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);
4239	Args.AddLastArg(CmdArgs, options::OPT_w);
4240
4241	// Fixed point flags
4242	if (Args.hasFlag(options::OPT_ffixed_point, options::OPT_fno_fixed_point,
4243	/Default=/false))
4244	Args.AddLastArg(CmdArgs, options::OPT_ffixed_point);
4245
4246	// Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi}
4247	// (-ansi is equivalent to -std=c89 or -std=c++98).
4248	//
4249	// If a std is supplied, only add -trigraphs if it follows the
4250	// option.
4251	bool ImplyVCPPCXXVer = false;
4252	if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) {
4253	if (Std->getOption().matches(options::OPT_ansi))
4254	if (types::isCXX(InputType))
4255	CmdArgs.push_back("-std=c++98");
4256	else
4257	CmdArgs.push_back("-std=c89");
4258	else
4259	Std->render(Args, CmdArgs);
4260
4261	// If -f(no-)trigraphs appears after the language standard flag, honor it.
4262	if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi,
4263	options::OPT_ftrigraphs,
4264	options::OPT_fno_trigraphs))
4265	if (A != Std)
4266	A->render(Args, CmdArgs);
4267	} else {
4268	// Honor -std-default.
4269	//
4270	// FIXME: Clang doesn't correctly handle -std= when the input language
4271	// doesn't match. For the time being just ignore this for C++ inputs;
4272	// eventually we want to do all the standard defaulting here instead of
4273	// splitting it between the driver and clang -cc1.
4274	if (!types::isCXX(InputType))
4275	Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=",
4276	/Joined=/true);
4277	else if (IsWindowsMSVC)
4278	ImplyVCPPCXXVer = true;
4279
4280	Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs,
4281	options::OPT_fno_trigraphs);
4282	}
4283
4284	// GCC's behavior for -Wwrite-strings is a bit strange:
4285	// * In C, this "warning flag" changes the types of string literals from
4286	// 'char[N]' to 'const char[N]', and thus triggers an unrelated warning
4287	// for the discarded qualifier.
4288	// * In C++, this is just a normal warning flag.
4289	//
4290	// Implementing this warning correctly in C is hard, so we follow GCC's
4291	// behavior for now. FIXME: Directly diagnose uses of a string literal as
4292	// a non-const char* in C, rather than using this crude hack.
4293	if (!types::isCXX(InputType)) {
4294	// FIXME: This should behave just like a warning flag, and thus should also
4295	// respect -Weverything, -Wno-everything, -Werror=write-strings, and so on.
4296	Arg *WriteStrings =
4297	Args.getLastArg(options::OPT_Wwrite_strings,
4298	options::OPT_Wno_write_strings, options::OPT_w);
4299	if (WriteStrings &&
4300	WriteStrings->getOption().matches(options::OPT_Wwrite_strings))
4301	CmdArgs.push_back("-fconst-strings");
4302	}
4303
4304	// GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active
4305	// during C++ compilation, which it is by default. GCC keeps this define even
4306	// in the presence of '-w', match this behavior bug-for-bug.
4307	if (types::isCXX(InputType) &&
4308	Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated,
4309	true)) {
4310	CmdArgs.push_back("-fdeprecated-macro");
4311	}
4312
4313	// Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'.
4314	if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) {
4315	if (Asm->getOption().matches(options::OPT_fasm))
4316	CmdArgs.push_back("-fgnu-keywords");
4317	else
4318	CmdArgs.push_back("-fno-gnu-keywords");
4319	}
4320
4321	if (ShouldDisableDwarfDirectory(Args, TC))
4322	CmdArgs.push_back("-fno-dwarf-directory-asm");
4323
4324	if (ShouldDisableAutolink(Args, TC))
4325	CmdArgs.push_back("-fno-autolink");
4326
4327	// Add in -fdebug-compilation-dir if necessary.
4328	addDebugCompDirArg(Args, CmdArgs);
4329
4330	addDebugPrefixMapArg(D, Args, CmdArgs);
4331
4332	if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_,
4333	options::OPT_ftemplate_depth_EQ)) {
4334	CmdArgs.push_back("-ftemplate-depth");
4335	CmdArgs.push_back(A->getValue());
4336	}
4337
4338	if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) {
4339	CmdArgs.push_back("-foperator-arrow-depth");
4340	CmdArgs.push_back(A->getValue());
4341	}
4342
4343	if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) {
4344	CmdArgs.push_back("-fconstexpr-depth");
4345	CmdArgs.push_back(A->getValue());
4346	}
4347
4348	if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) {
4349	CmdArgs.push_back("-fconstexpr-steps");
4350	CmdArgs.push_back(A->getValue());
4351	}
4352
4353	if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) {
4354	CmdArgs.push_back("-fbracket-depth");
4355	CmdArgs.push_back(A->getValue());
4356	}
4357
4358	if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ,
4359	options::OPT_Wlarge_by_value_copy_def)) {
4360	if (A->getNumValues()) {
4361	StringRef bytes = A->getValue();
4362	CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes));
4363	} else
4364	CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value
4365	}
4366
4367	if (Args.hasArg(options::OPT_relocatable_pch))
4368	CmdArgs.push_back("-relocatable-pch");
4369
4370	if (const Arg *A = Args.getLastArg(options::OPT_fcf_runtime_abi_EQ)) {
4371	static const char *kCFABIs[] = {
4372	"standalone", "objc", "swift", "swift-5.0", "swift-4.2", "swift-4.1",
4373	};
4374
4375	if (find(kCFABIs, StringRef(A->getValue())) == std::end(kCFABIs))
4376	D.Diag(diag::err_drv_invalid_cf_runtime_abi) << A->getValue();
4377	else
4378	A->render(Args, CmdArgs);
4379	}
4380
4381	if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) {
4382	CmdArgs.push_back("-fconstant-string-class");
4383	CmdArgs.push_back(A->getValue());
4384	}
4385
4386	if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) {
4387	CmdArgs.push_back("-ftabstop");
4388	CmdArgs.push_back(A->getValue());
4389	}
4390
4391	if (Args.hasFlag(options::OPT_fstack_size_section,
4392	options::OPT_fno_stack_size_section, RawTriple.isPS4()))
4393	CmdArgs.push_back("-fstack-size-section");
4394
4395	CmdArgs.push_back("-ferror-limit");
4396	if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ))
4397	CmdArgs.push_back(A->getValue());
4398	else
4399	CmdArgs.push_back("19");
4400
4401	if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) {
4402	CmdArgs.push_back("-fmacro-backtrace-limit");
4403	CmdArgs.push_back(A->getValue());
4404	}
4405
4406	if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) {
4407	CmdArgs.push_back("-ftemplate-backtrace-limit");
4408	CmdArgs.push_back(A->getValue());
4409	}
4410
4411	if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) {
4412	CmdArgs.push_back("-fconstexpr-backtrace-limit");
4413	CmdArgs.push_back(A->getValue());
4414	}
4415
4416	if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) {
4417	CmdArgs.push_back("-fspell-checking-limit");
4418	CmdArgs.push_back(A->getValue());
4419	}
4420
4421	// Pass -fmessage-length=.
4422	CmdArgs.push_back("-fmessage-length");
4423	if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) {
4424	CmdArgs.push_back(A->getValue());
4425	} else {
4426	// If -fmessage-length=N was not specified, determine whether this is a
4427	// terminal and, if so, implicitly define -fmessage-length appropriately.
4428	unsigned N = llvm::sys::Process::StandardErrColumns();
4429	CmdArgs.push_back(Args.MakeArgString(Twine(N)));
4430	}
4431
4432	// -fvisibility= and -fvisibility-ms-compat are of a piece.
4433	if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ,
4434	options::OPT_fvisibility_ms_compat)) {
4435	if (A->getOption().matches(options::OPT_fvisibility_EQ)) {
4436	CmdArgs.push_back("-fvisibility");
4437	CmdArgs.push_back(A->getValue());
4438	} else {
4439	getOption().matches(options..OPT_fvisibility_ms_compat)", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 4439, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(A->getOption().matches(options::OPT_fvisibility_ms_compat));
4440	CmdArgs.push_back("-fvisibility");
4441	CmdArgs.push_back("hidden");
4442	CmdArgs.push_back("-ftype-visibility");
4443	CmdArgs.push_back("default");
4444	}
4445	}
4446
4447	Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden);
4448	Args.AddLastArg(CmdArgs, options::OPT_fvisibility_global_new_delete_hidden);
4449
4450	Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ);
4451
4452	// Forward -f (flag) options which we can pass directly.
4453	Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
4454	Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
4455	Args.AddLastArg(CmdArgs, options::OPT_fdigraphs, options::OPT_fno_digraphs);
4456	Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names);
4457	Args.AddLastArg(CmdArgs, options::OPT_femulated_tls,
4458	options::OPT_fno_emulated_tls);
4459	Args.AddLastArg(CmdArgs, options::OPT_fkeep_static_consts);
4460
4461	// AltiVec-like language extensions aren't relevant for assembling.
4462	if (!isa<PreprocessJobAction>(JA) \|\| Output.getType() != types::TY_PP_Asm)
4463	Args.AddLastArg(CmdArgs, options::OPT_fzvector);
4464
4465	Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree);
4466	Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type);
4467
4468	// Forward flags for OpenMP. We don't do this if the current action is an
4469	// device offloading action other than OpenMP.
4470	if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
4471	options::OPT_fno_openmp, false) &&
4472	(JA.isDeviceOffloading(Action::OFK_None) \|\|
4473	JA.isDeviceOffloading(Action::OFK_OpenMP))) {
4474	switch (D.getOpenMPRuntime(Args)) {
4475	case Driver::OMPRT_OMP:
4476	case Driver::OMPRT_IOMP5:
4477	// Clang can generate useful OpenMP code for these two runtime libraries.
4478	CmdArgs.push_back("-fopenmp");
4479
4480	// If no option regarding the use of TLS in OpenMP codegeneration is
4481	// given, decide a default based on the target. Otherwise rely on the
4482	// options and pass the right information to the frontend.
4483	if (!Args.hasFlag(options::OPT_fopenmp_use_tls,
4484	options::OPT_fnoopenmp_use_tls, /Default=/true))
4485	CmdArgs.push_back("-fnoopenmp-use-tls");
4486	Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
4487	options::OPT_fno_openmp_simd);
4488	Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
4489	Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_number_of_sm_EQ);
4490	Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_blocks_per_sm_EQ);
4491	Args.AddAllArgs(CmdArgs,
4492	options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ);
4493	if (Args.hasFlag(options::OPT_fopenmp_optimistic_collapse,
4494	options::OPT_fno_openmp_optimistic_collapse,
4495	/Default=/false))
4496	CmdArgs.push_back("-fopenmp-optimistic-collapse");
4497
4498	// When in OpenMP offloading mode with NVPTX target, forward
4499	// cuda-mode flag
4500	if (Args.hasFlag(options::OPT_fopenmp_cuda_mode,
4501	options::OPT_fno_openmp_cuda_mode, /Default=/false))
4502	CmdArgs.push_back("-fopenmp-cuda-mode");
4503
4504	// When in OpenMP offloading mode with NVPTX target, check if full runtime
4505	// is required.
4506	if (Args.hasFlag(options::OPT_fopenmp_cuda_force_full_runtime,
4507	options::OPT_fno_openmp_cuda_force_full_runtime,
4508	/Default=/false))
4509	CmdArgs.push_back("-fopenmp-cuda-force-full-runtime");
4510	break;
4511	default:
4512	// By default, if Clang doesn't know how to generate useful OpenMP code
4513	// for a specific runtime library, we just don't pass the '-fopenmp' flag
4514	// down to the actual compilation.
4515	// FIXME: It would be better to have a mode which only omits IR
4516	// generation based on the OpenMP support so that we get consistent
4517	// semantic analysis, etc.
4518	break;
4519	}
4520	} else {
4521	Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
4522	options::OPT_fno_openmp_simd);
4523	Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
4524	}
4525
4526	const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
4527	Sanitize.addArgs(TC, Args, CmdArgs, InputType);
4528
4529	const XRayArgs &XRay = TC.getXRayArgs();
4530	XRay.addArgs(TC, Args, CmdArgs, InputType);
4531
4532	if (TC.SupportsProfiling())
4533	Args.AddLastArg(CmdArgs, options::OPT_pg);
4534
4535	if (TC.SupportsProfiling())
4536	Args.AddLastArg(CmdArgs, options::OPT_mfentry);
4537
4538	// -flax-vector-conversions is default.
4539	if (!Args.hasFlag(options::OPT_flax_vector_conversions,
4540	options::OPT_fno_lax_vector_conversions))
4541	CmdArgs.push_back("-fno-lax-vector-conversions");
4542
4543	if (Args.getLastArg(options::OPT_fapple_kext) \|\|
4544	(Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType)))
4545	CmdArgs.push_back("-fapple-kext");
4546
4547	Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch);
4548	Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info);
4549	Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits);
4550	Args.AddLastArg(CmdArgs, options::OPT_ftime_report);
4551	Args.AddLastArg(CmdArgs, options::OPT_ftrapv);
4552	Args.AddLastArg(CmdArgs, options::OPT_malign_double);
4553
4554	if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) {
4555	CmdArgs.push_back("-ftrapv-handler");
4556	CmdArgs.push_back(A->getValue());
4557	}
4558
4559	Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ);
4560
4561	// -fno-strict-overflow implies -fwrapv if it isn't disabled, but
4562	// -fstrict-overflow won't turn off an explicitly enabled -fwrapv.
4563	if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) {
4564	if (A->getOption().matches(options::OPT_fwrapv))
4565	CmdArgs.push_back("-fwrapv");
4566	} else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow,
4567	options::OPT_fno_strict_overflow)) {
4568	if (A->getOption().matches(options::OPT_fno_strict_overflow))
4569	CmdArgs.push_back("-fwrapv");
4570	}
4571
4572	if (Arg *A = Args.getLastArg(options::OPT_freroll_loops,
4573	options::OPT_fno_reroll_loops))
4574	if (A->getOption().matches(options::OPT_freroll_loops))
4575	CmdArgs.push_back("-freroll-loops");
4576
4577	Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings);
4578	Args.AddLastArg(CmdArgs, options::OPT_funroll_loops,
4579	options::OPT_fno_unroll_loops);
4580
4581	Args.AddLastArg(CmdArgs, options::OPT_pthread);
4582
4583	if (Args.hasFlag(options::OPT_mspeculative_load_hardening, options::OPT_mno_speculative_load_hardening,
4584	false))
4585	CmdArgs.push_back(Args.MakeArgString("-mspeculative-load-hardening"));
4586
4587	RenderSSPOptions(TC, Args, CmdArgs, KernelOrKext);
4588	RenderTrivialAutoVarInitOptions(D, TC, Args, CmdArgs);
4589
4590	// Translate -mstackrealign
4591	if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign,
4592	false))
4593	CmdArgs.push_back(Args.MakeArgString("-mstackrealign"));
4594
4595	if (Args.hasArg(options::OPT_mstack_alignment)) {
4596	StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment);
4597	CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment));
4598	}
4599
4600	if (Args.hasArg(options::OPT_mstack_probe_size)) {
4601	StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size);
4602
4603	if (!Size.empty())
4604	CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size));
4605	else
4606	CmdArgs.push_back("-mstack-probe-size=0");
4607	}
4608
4609	if (!Args.hasFlag(options::OPT_mstack_arg_probe,
4610	options::OPT_mno_stack_arg_probe, true))
4611	CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe"));
4612
4613	if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it,
4614	options::OPT_mno_restrict_it)) {
4615	if (A->getOption().matches(options::OPT_mrestrict_it)) {
4616	CmdArgs.push_back("-mllvm");
4617	CmdArgs.push_back("-arm-restrict-it");
4618	} else {
4619	CmdArgs.push_back("-mllvm");
4620	CmdArgs.push_back("-arm-no-restrict-it");
4621	}
4622	} else if (Triple.isOSWindows() &&
4623	(Triple.getArch() == llvm::Triple::arm \|\|
4624	Triple.getArch() == llvm::Triple::thumb)) {
4625	// Windows on ARM expects restricted IT blocks
4626	CmdArgs.push_back("-mllvm");
4627	CmdArgs.push_back("-arm-restrict-it");
4628	}
4629
4630	// Forward -cl options to -cc1
4631	RenderOpenCLOptions(Args, CmdArgs);
4632
4633	if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) {
4634	CmdArgs.push_back(
4635	Args.MakeArgString(Twine("-fcf-protection=") + A->getValue()));
4636	}
4637
4638	// Forward -f options with positive and negative forms; we translate
4639	// these by hand.
4640	if (Arg *A = getLastProfileSampleUseArg(Args)) {
4641	auto *PGOArg = Args.getLastArg(
4642	options::OPT_fprofile_generate, options::OPT_fprofile_generate_EQ,
4643	options::OPT_fcs_profile_generate, options::OPT_fcs_profile_generate_EQ,
4644	options::OPT_fprofile_use, options::OPT_fprofile_use_EQ);
4645	if (PGOArg)
4646	D.Diag(diag::err_drv_argument_not_allowed_with)
4647	<< "SampleUse with PGO options";
4648
4649	StringRef fname = A->getValue();
4650	if (!llvm::sys::fs::exists(fname))
4651	D.Diag(diag::err_drv_no_such_file) << fname;
4652	else
4653	A->render(Args, CmdArgs);
4654	}
4655	Args.AddLastArg(CmdArgs, options::OPT_fprofile_remapping_file_EQ);
4656
4657	RenderBuiltinOptions(TC, RawTriple, Args, CmdArgs);
4658
4659	if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
4660	options::OPT_fno_assume_sane_operator_new))
4661	CmdArgs.push_back("-fno-assume-sane-operator-new");
4662
4663	// -fblocks=0 is default.
4664	if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks,
4665	TC.IsBlocksDefault()) \|\|
4666	(Args.hasArg(options::OPT_fgnu_runtime) &&
4667	Args.hasArg(options::OPT_fobjc_nonfragile_abi) &&
4668	!Args.hasArg(options::OPT_fno_blocks))) {
4669	CmdArgs.push_back("-fblocks");
4670
4671	if (!Args.hasArg(options::OPT_fgnu_runtime) && !TC.hasBlocksRuntime())
4672	CmdArgs.push_back("-fblocks-runtime-optional");
4673	}
4674
4675	// -fencode-extended-block-signature=1 is default.
4676	if (TC.IsEncodeExtendedBlockSignatureDefault())
4677	CmdArgs.push_back("-fencode-extended-block-signature");
4678
4679	if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts,
4680	false) &&
4681	types::isCXX(InputType)) {
4682	CmdArgs.push_back("-fcoroutines-ts");
4683	}
4684
4685	Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes,
4686	options::OPT_fno_double_square_bracket_attributes);
4687
4688	bool HaveModules = false;
4689	RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules);
4690
4691	// -faccess-control is default.
4692	if (Args.hasFlag(options::OPT_fno_access_control,
4693	options::OPT_faccess_control, false))
4694	CmdArgs.push_back("-fno-access-control");
4695
4696	// -felide-constructors is the default.
4697	if (Args.hasFlag(options::OPT_fno_elide_constructors,
4698	options::OPT_felide_constructors, false))
4699	CmdArgs.push_back("-fno-elide-constructors");
4700
4701	ToolChain::RTTIMode RTTIMode = TC.getRTTIMode();
4702
4703	if (KernelOrKext \|\| (types::isCXX(InputType) &&
4704	(RTTIMode == ToolChain::RM_Disabled)))
4705	CmdArgs.push_back("-fno-rtti");
4706
4707	// -fshort-enums=0 is default for all architectures except Hexagon.
4708	if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums,
4709	TC.getArch() == llvm::Triple::hexagon))
4710	CmdArgs.push_back("-fshort-enums");
4711
4712	RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs);
4713
4714	// -fuse-cxa-atexit is default.
4715	if (!Args.hasFlag(
4716	options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit,
4717	!RawTriple.isOSWindows() &&
4718	RawTriple.getOS() != llvm::Triple::Solaris &&
4719	TC.getArch() != llvm::Triple::xcore &&
4720	((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) \|\|
4721	RawTriple.hasEnvironment())) \|\|
4722	KernelOrKext)
4723	CmdArgs.push_back("-fno-use-cxa-atexit");
4724
4725	if (Args.hasFlag(options::OPT_fregister_global_dtors_with_atexit,
4726	options::OPT_fno_register_global_dtors_with_atexit,
4727	RawTriple.isOSDarwin() && !KernelOrKext))
4728	CmdArgs.push_back("-fregister-global-dtors-with-atexit");
4729
4730	// -fms-extensions=0 is default.
4731	if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
4732	IsWindowsMSVC))
4733	CmdArgs.push_back("-fms-extensions");
4734
4735	// -fno-use-line-directives is default.
4736	if (Args.hasFlag(options::OPT_fuse_line_directives,
4737	options::OPT_fno_use_line_directives, false))
4738	CmdArgs.push_back("-fuse-line-directives");
4739
4740	// -fms-compatibility=0 is default.
4741	if (Args.hasFlag(options::OPT_fms_compatibility,
4742	options::OPT_fno_ms_compatibility,
4743	(IsWindowsMSVC &&
4744	Args.hasFlag(options::OPT_fms_extensions,
4745	options::OPT_fno_ms_extensions, true))))
4746	CmdArgs.push_back("-fms-compatibility");
4747
4748	VersionTuple MSVT = TC.computeMSVCVersion(&D, Args);
4749	if (!MSVT.empty())
4750	CmdArgs.push_back(
4751	Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString()));
4752
4753	bool IsMSVC2015Compatible = MSVT.getMajor() >= 19;
4754	if (ImplyVCPPCXXVer) {
4755	StringRef LanguageStandard;
4756	if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) {
4757	LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue())
4758	.Case("c++14", "-std=c++14")
4759	.Case("c++17", "-std=c++17")
4760	.Case("c++latest", "-std=c++2a")
4761	.Default("");
4762	if (LanguageStandard.empty())
4763	D.Diag(clang::diag::warn_drv_unused_argument)
4764	<< StdArg->getAsString(Args);
4765	}
4766
4767	if (LanguageStandard.empty()) {
4768	if (IsMSVC2015Compatible)
4769	LanguageStandard = "-std=c++14";
4770	else
4771	LanguageStandard = "-std=c++11";
4772	}
4773
4774	CmdArgs.push_back(LanguageStandard.data());
4775	}
4776
4777	// -fno-borland-extensions is default.
4778	if (Args.hasFlag(options::OPT_fborland_extensions,
4779	options::OPT_fno_borland_extensions, false))
4780	CmdArgs.push_back("-fborland-extensions");
4781
4782	// -fno-declspec is default, except for PS4.
4783	if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec,
4784	RawTriple.isPS4()))
4785	CmdArgs.push_back("-fdeclspec");
4786	else if (Args.hasArg(options::OPT_fno_declspec))
4787	CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec.
4788
4789	// -fthreadsafe-static is default, except for MSVC compatibility versions less
4790	// than 19.
4791	if (!Args.hasFlag(options::OPT_fthreadsafe_statics,
4792	options::OPT_fno_threadsafe_statics,
4793	!IsWindowsMSVC \|\| IsMSVC2015Compatible))
4794	CmdArgs.push_back("-fno-threadsafe-statics");
4795
4796	// -fno-delayed-template-parsing is default, except when targeting MSVC.
4797	// Many old Windows SDK versions require this to parse.
4798	// FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their
4799	// compiler. We should be able to disable this by default at some point.
4800	if (Args.hasFlag(options::OPT_fdelayed_template_parsing,
4801	options::OPT_fno_delayed_template_parsing, IsWindowsMSVC))
4802	CmdArgs.push_back("-fdelayed-template-parsing");
4803
4804	// -fgnu-keywords default varies depending on language; only pass if
4805	// specified.
4806	if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords,
4807	options::OPT_fno_gnu_keywords))
4808	A->render(Args, CmdArgs);
4809
4810	if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline,
4811	false))
4812	CmdArgs.push_back("-fgnu89-inline");
4813
4814	if (Args.hasArg(options::OPT_fno_inline))
4815	CmdArgs.push_back("-fno-inline");
4816
4817	if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions,
4818	options::OPT_finline_hint_functions,
4819	options::OPT_fno_inline_functions))
4820	InlineArg->render(Args, CmdArgs);
4821
4822	Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager,
4823	options::OPT_fno_experimental_new_pass_manager);
4824
4825	ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind);
4826	RenderObjCOptions(TC, D, RawTriple, Args, Runtime, rewriteKind != RK_None,
4827	Input, CmdArgs);
4828
4829	if (Args.hasFlag(options::OPT_fapplication_extension,
4830	options::OPT_fno_application_extension, false))
4831	CmdArgs.push_back("-fapplication-extension");
4832
4833	// Handle GCC-style exception args.
4834	if (!C.getDriver().IsCLMode())
4835	addExceptionArgs(Args, InputType, TC, KernelOrKext, Runtime, CmdArgs);
4836
4837	// Handle exception personalities
4838	Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions,
4839	options::OPT_fseh_exceptions,
4840	options::OPT_fdwarf_exceptions);
4841	if (A) {
4842	const Option &Opt = A->getOption();
4843	if (Opt.matches(options::OPT_fsjlj_exceptions))
4844	CmdArgs.push_back("-fsjlj-exceptions");
4845	if (Opt.matches(options::OPT_fseh_exceptions))
4846	CmdArgs.push_back("-fseh-exceptions");
4847	if (Opt.matches(options::OPT_fdwarf_exceptions))
4848	CmdArgs.push_back("-fdwarf-exceptions");
4849	} else {
4850	switch (TC.GetExceptionModel(Args)) {
4851	default:
4852	break;
4853	case llvm::ExceptionHandling::DwarfCFI:
4854	CmdArgs.push_back("-fdwarf-exceptions");
4855	break;
4856	case llvm::ExceptionHandling::SjLj:
4857	CmdArgs.push_back("-fsjlj-exceptions");
4858	break;
4859	case llvm::ExceptionHandling::WinEH:
4860	CmdArgs.push_back("-fseh-exceptions");
4861	break;
4862	}
4863	}
4864
4865	// C++ "sane" operator new.
4866	if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
4867	options::OPT_fno_assume_sane_operator_new))
4868	CmdArgs.push_back("-fno-assume-sane-operator-new");
4869
4870	// -frelaxed-template-template-args is off by default, as it is a severe
4871	// breaking change until a corresponding change to template partial ordering
4872	// is provided.
4873	if (Args.hasFlag(options::OPT_frelaxed_template_template_args,
4874	options::OPT_fno_relaxed_template_template_args, false))
4875	CmdArgs.push_back("-frelaxed-template-template-args");
4876
4877	// -fsized-deallocation is off by default, as it is an ABI-breaking change for
4878	// most platforms.
4879	if (Args.hasFlag(options::OPT_fsized_deallocation,
4880	options::OPT_fno_sized_deallocation, false))
4881	CmdArgs.push_back("-fsized-deallocation");
4882
4883	// -faligned-allocation is on by default in C++17 onwards and otherwise off
4884	// by default.
4885	if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation,
4886	options::OPT_fno_aligned_allocation,
4887	options::OPT_faligned_new_EQ)) {
4888	if (A->getOption().matches(options::OPT_fno_aligned_allocation))
4889	CmdArgs.push_back("-fno-aligned-allocation");
4890	else
4891	CmdArgs.push_back("-faligned-allocation");
4892	}
4893
4894	// The default new alignment can be specified using a dedicated option or via
4895	// a GCC-compatible option that also turns on aligned allocation.
4896	if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ,
4897	options::OPT_faligned_new_EQ))
4898	CmdArgs.push_back(
4899	Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue()));
4900
4901	// -fconstant-cfstrings is default, and may be subject to argument translation
4902	// on Darwin.
4903	if (!Args.hasFlag(options::OPT_fconstant_cfstrings,
4904	options::OPT_fno_constant_cfstrings) \|\|
4905	!Args.hasFlag(options::OPT_mconstant_cfstrings,
4906	options::OPT_mno_constant_cfstrings))
4907	CmdArgs.push_back("-fno-constant-cfstrings");
4908
4909	// -fno-pascal-strings is default, only pass non-default.
4910	if (Args.hasFlag(options::OPT_fpascal_strings,
4911	options::OPT_fno_pascal_strings, false))
4912	CmdArgs.push_back("-fpascal-strings");
4913
4914	// Honor -fpack-struct= and -fpack-struct, if given. Note that
4915	// -fno-pack-struct doesn't apply to -fpack-struct=.
4916	if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) {
4917	std::string PackStructStr = "-fpack-struct=";
4918	PackStructStr += A->getValue();
4919	CmdArgs.push_back(Args.MakeArgString(PackStructStr));
4920	} else if (Args.hasFlag(options::OPT_fpack_struct,
4921	options::OPT_fno_pack_struct, false)) {
4922	CmdArgs.push_back("-fpack-struct=1");
4923	}
4924
4925	// Handle -fmax-type-align=N and -fno-type-align
4926	bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align);
4927	if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) {
4928	if (!SkipMaxTypeAlign) {
4929	std::string MaxTypeAlignStr = "-fmax-type-align=";
4930	MaxTypeAlignStr += A->getValue();
4931	CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
4932	}
4933	} else if (RawTriple.isOSDarwin()) {
4934	if (!SkipMaxTypeAlign) {
4935	std::string MaxTypeAlignStr = "-fmax-type-align=16";
4936	CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
4937	}
4938	}
4939
4940	if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true))
4941	CmdArgs.push_back("-Qn");
4942
4943	// -fcommon is the default unless compiling kernel code or the target says so
4944	bool NoCommonDefault = KernelOrKext \|\| isNoCommonDefault(RawTriple);
4945	if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common,
4946	!NoCommonDefault))
4947	CmdArgs.push_back("-fno-common");
4948
4949	// -fsigned-bitfields is default, and clang doesn't yet support
4950	// -funsigned-bitfields.
4951	if (!Args.hasFlag(options::OPT_fsigned_bitfields,
4952	options::OPT_funsigned_bitfields))
4953	D.Diag(diag::warn_drv_clang_unsupported)
4954	<< Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
4955
4956	// -fsigned-bitfields is default, and clang doesn't support -fno-for-scope.
4957	if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope))
4958	D.Diag(diag::err_drv_clang_unsupported)
4959	<< Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args);
4960
4961	// -finput_charset=UTF-8 is default. Reject others
4962	if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) {
4963	StringRef value = inputCharset->getValue();
4964	if (!value.equals_lower("utf-8"))
4965	D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args)
4966	<< value;
4967	}
4968
4969	// -fexec_charset=UTF-8 is default. Reject others
4970	if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) {
4971	StringRef value = execCharset->getValue();
4972	if (!value.equals_lower("utf-8"))
4973	D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args)
4974	<< value;
4975	}
4976
4977	RenderDiagnosticsOptions(D, Args, CmdArgs);
4978
4979	// -fno-asm-blocks is default.
4980	if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks,
4981	false))
4982	CmdArgs.push_back("-fasm-blocks");
4983
4984	// -fgnu-inline-asm is default.
4985	if (!Args.hasFlag(options::OPT_fgnu_inline_asm,
4986	options::OPT_fno_gnu_inline_asm, true))
4987	CmdArgs.push_back("-fno-gnu-inline-asm");
4988
4989	// Enable vectorization per default according to the optimization level
4990	// selected. For optimization levels that want vectorization we use the alias
4991	// option to simplify the hasFlag logic.
4992	bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false);
4993	OptSpecifier VectorizeAliasOption =
4994	EnableVec ? options::OPT_O_Group : options::OPT_fvectorize;
4995	if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption,
4996	options::OPT_fno_vectorize, EnableVec))
4997	CmdArgs.push_back("-vectorize-loops");
4998
4999	// -fslp-vectorize is enabled based on the optimization level selected.
5000	bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true);
5001	OptSpecifier SLPVectAliasOption =
5002	EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize;
5003	if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption,
5004	options::OPT_fno_slp_vectorize, EnableSLPVec))
5005	CmdArgs.push_back("-vectorize-slp");
5006
5007	ParseMPreferVectorWidth(D, Args, CmdArgs);
5008
5009	if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ))
5010	A->render(Args, CmdArgs);
5011
5012	if (Arg *A = Args.getLastArg(
5013	options::OPT_fsanitize_undefined_strip_path_components_EQ))
5014	A->render(Args, CmdArgs);
5015
5016	// -fdollars-in-identifiers default varies depending on platform and
5017	// language; only pass if specified.
5018	if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers,
5019	options::OPT_fno_dollars_in_identifiers)) {
5020	if (A->getOption().matches(options::OPT_fdollars_in_identifiers))
5021	CmdArgs.push_back("-fdollars-in-identifiers");
5022	else
5023	CmdArgs.push_back("-fno-dollars-in-identifiers");
5024	}
5025
5026	// -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for
5027	// practical purposes.
5028	if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time,
5029	options::OPT_fno_unit_at_a_time)) {
5030	if (A->getOption().matches(options::OPT_fno_unit_at_a_time))
5031	D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args);
5032	}
5033
5034	if (Args.hasFlag(options::OPT_fapple_pragma_pack,
5035	options::OPT_fno_apple_pragma_pack, false))
5036	CmdArgs.push_back("-fapple-pragma-pack");
5037
5038	// Remarks can be enabled with any of the `-f.optimization-record.` flags.
5039	if (Args.hasFlag(options::OPT_fsave_optimization_record,
5040	options::OPT_foptimization_record_file_EQ,
5041	options::OPT_fno_save_optimization_record, false) \|\|
5042	Args.hasFlag(options::OPT_foptimization_record_passes_EQ,
5043	options::OPT_fno_save_optimization_record, false)) {
5044	CmdArgs.push_back("-opt-record-file");
5045
5046	const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ);
5047	if (A) {
5048	CmdArgs.push_back(A->getValue());
5049	} else {
5050	SmallString<128> F;
5051
5052	if (Args.hasArg(options::OPT_c) \|\| Args.hasArg(options::OPT_S)) {
5053	if (Arg *FinalOutput = Args.getLastArg(options::OPT_o))
5054	F = FinalOutput->getValue();
5055	}
5056
5057	if (F.empty()) {
5058	// Use the input filename.
5059	F = llvm::sys::path::stem(Input.getBaseInput());
5060
5061	// If we're compiling for an offload architecture (i.e. a CUDA device),
5062	// we need to make the file name for the device compilation different
5063	// from the host compilation.
5064	if (!JA.isDeviceOffloading(Action::OFK_None) &&
5065	!JA.isDeviceOffloading(Action::OFK_Host)) {
5066	llvm::sys::path::replace_extension(F, "");
5067	F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(),
5068	Triple.normalize());
5069	F += "-";
5070	F += JA.getOffloadingArch();
5071	}
5072	}
5073
5074	llvm::sys::path::replace_extension(F, "opt.yaml");
5075	CmdArgs.push_back(Args.MakeArgString(F));
5076	}
5077	if (const Arg *A =
5078	Args.getLastArg(options::OPT_foptimization_record_passes_EQ)) {
5079	CmdArgs.push_back("-opt-record-passes");
5080	CmdArgs.push_back(A->getValue());
5081	}
5082	}
5083
5084	bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports,
5085	options::OPT_fno_rewrite_imports, false);
5086	if (RewriteImports)
5087	CmdArgs.push_back("-frewrite-imports");
5088
5089	// Enable rewrite includes if the user's asked for it or if we're generating
5090	// diagnostics.
5091	// TODO: Once -module-dependency-dir works with -frewrite-includes it'd be
5092	// nice to enable this when doing a crashdump for modules as well.
5093	if (Args.hasFlag(options::OPT_frewrite_includes,
5094	options::OPT_fno_rewrite_includes, false) \|\|
5095	(C.isForDiagnostics() && !HaveModules))
5096	CmdArgs.push_back("-frewrite-includes");
5097
5098	// Only allow -traditional or -traditional-cpp outside in preprocessing modes.
5099	if (Arg *A = Args.getLastArg(options::OPT_traditional,
5100	options::OPT_traditional_cpp)) {
5101	if (isa<PreprocessJobAction>(JA))
5102	CmdArgs.push_back("-traditional-cpp");
5103	else
5104	D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
5105	}
5106
5107	Args.AddLastArg(CmdArgs, options::OPT_dM);
5108	Args.AddLastArg(CmdArgs, options::OPT_dD);
5109
5110	// Handle serialized diagnostics.
5111	if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) {
5112	CmdArgs.push_back("-serialize-diagnostic-file");
5113	CmdArgs.push_back(Args.MakeArgString(A->getValue()));
5114	}
5115
5116	if (Args.hasArg(options::OPT_fretain_comments_from_system_headers))
5117	CmdArgs.push_back("-fretain-comments-from-system-headers");
5118
5119	// Forward -fcomment-block-commands to -cc1.
5120	Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands);
5121	// Forward -fparse-all-comments to -cc1.
5122	Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments);
5123
5124	// Turn -fplugin=name.so into -load name.so
5125	for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) {
5126	CmdArgs.push_back("-load");
5127	CmdArgs.push_back(A->getValue());
5128	A->claim();
5129	}
5130
5131	// Forward -fpass-plugin=name.so to -cc1.
5132	for (const Arg *A : Args.filtered(options::OPT_fpass_plugin_EQ)) {
5133	CmdArgs.push_back(
5134	Args.MakeArgString(Twine("-fpass-plugin=") + A->getValue()));
5135	A->claim();
5136	}
5137
5138	// Setup statistics file output.
5139	SmallString<128> StatsFile = getStatsFileName(Args, Output, Input, D);
5140	if (!StatsFile.empty())
5141	CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + StatsFile));
5142
5143	// Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option
5144	// parser.
5145	// -finclude-default-header flag is for preprocessor,
5146	// do not pass it to other cc1 commands when save-temps is enabled
5147	if (C.getDriver().isSaveTempsEnabled() &&
5148	!isa<PreprocessJobAction>(JA)) {
5149	for (auto Arg : Args.filtered(options::OPT_Xclang)) {
5150	Arg->claim();
5151	if (StringRef(Arg->getValue()) != "-finclude-default-header")
5152	CmdArgs.push_back(Arg->getValue());
5153	}
5154	}
5155	else {
5156	Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);
5157	}
5158	for (const Arg *A : Args.filtered(options::OPT_mllvm)) {
5159	A->claim();
5160
5161	// We translate this by hand to the -cc1 argument, since nightly test uses
5162	// it and developers have been trained to spell it with -mllvm. Both
5163	// spellings are now deprecated and should be removed.
5164	if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") {
5165	CmdArgs.push_back("-disable-llvm-optzns");
5166	} else {
5167	A->render(Args, CmdArgs);
5168	}
5169	}
5170
5171	// With -save-temps, we want to save the unoptimized bitcode output from the
5172	// CompileJobAction, use -disable-llvm-passes to get pristine IR generated
5173	// by the frontend.
5174	// When -fembed-bitcode is enabled, optimized bitcode is emitted because it
5175	// has slightly different breakdown between stages.
5176	// FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of
5177	// pristine IR generated by the frontend. Ideally, a new compile action should
5178	// be added so both IR can be captured.
5179	if (C.getDriver().isSaveTempsEnabled() &&
5180	!(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) &&
5181	isa<CompileJobAction>(JA))
5182	CmdArgs.push_back("-disable-llvm-passes");
5183
5184	if (Output.getType() == types::TY_Dependencies) {
5185	// Handled with other dependency code.
5186	} else if (Output.isFilename()) {
5187	CmdArgs.push_back("-o");
5188	CmdArgs.push_back(Output.getFilename());
5189	} else {
5190	(0) . __assert_fail ("Output.isNothing() && \"Invalid output.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 5190, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Output.isNothing() && "Invalid output.");
5191	}
5192
5193	addDashXForInput(Args, Input, CmdArgs);
5194
5195	ArrayRef<InputInfo> FrontendInputs = Input;
5196	if (IsHeaderModulePrecompile)
5197	FrontendInputs = ModuleHeaderInputs;
5198	else if (Input.isNothing())
5199	FrontendInputs = {};
5200
5201	for (const InputInfo &Input : FrontendInputs) {
5202	if (Input.isFilename())
5203	CmdArgs.push_back(Input.getFilename());
5204	else
5205	Input.getInputArg().renderAsInput(Args, CmdArgs);
5206	}
5207
5208	Args.AddAllArgs(CmdArgs, options::OPT_undef);
5209
5210	const char *Exec = D.getClangProgramPath();
5211
5212	// Optionally embed the -cc1 level arguments into the debug info or a
5213	// section, for build analysis.
5214	// Also record command line arguments into the debug info if
5215	// -grecord-gcc-switches options is set on.
5216	// By default, -gno-record-gcc-switches is set on and no recording.
5217	auto GRecordSwitches =
5218	Args.hasFlag(options::OPT_grecord_command_line,
5219	options::OPT_gno_record_command_line, false);
5220	auto FRecordSwitches =
5221	Args.hasFlag(options::OPT_frecord_command_line,
5222	options::OPT_fno_record_command_line, false);
5223	if (FRecordSwitches && !Triple.isOSBinFormatELF())
5224	D.Diag(diag::err_drv_unsupported_opt_for_target)
5225	<< Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
5226	<< TripleStr;
5227	if (TC.UseDwarfDebugFlags() \|\| GRecordSwitches \|\| FRecordSwitches) {
5228	ArgStringList OriginalArgs;
5229	for (const auto &Arg : Args)
5230	Arg->render(Args, OriginalArgs);
5231
5232	SmallString<256> Flags;
5233	Flags += Exec;
5234	for (const char *OriginalArg : OriginalArgs) {
5235	SmallString<128> EscapedArg;
5236	EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
5237	Flags += " ";
5238	Flags += EscapedArg;
5239	}
5240	auto FlagsArgString = Args.MakeArgString(Flags);
5241	if (TC.UseDwarfDebugFlags() \|\| GRecordSwitches) {
5242	CmdArgs.push_back("-dwarf-debug-flags");
5243	CmdArgs.push_back(FlagsArgString);
5244	}
5245	if (FRecordSwitches) {
5246	CmdArgs.push_back("-record-command-line");
5247	CmdArgs.push_back(FlagsArgString);
5248	}
5249	}
5250
5251	// Host-side cuda compilation receives all device-side outputs in a single
5252	// fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary.
5253	if ((IsCuda \|\| IsHIP) && CudaDeviceInput) {
5254	CmdArgs.push_back("-fcuda-include-gpubinary");
5255	CmdArgs.push_back(CudaDeviceInput->getFilename());
5256	if (Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false))
5257	CmdArgs.push_back("-fgpu-rdc");
5258	}
5259
5260	if (IsCuda) {
5261	if (Args.hasFlag(options::OPT_fcuda_short_ptr,
5262	options::OPT_fno_cuda_short_ptr, false))
5263	CmdArgs.push_back("-fcuda-short-ptr");
5264	}
5265
5266	// OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path
5267	// to specify the result of the compile phase on the host, so the meaningful
5268	// device declarations can be identified. Also, -fopenmp-is-device is passed
5269	// along to tell the frontend that it is generating code for a device, so that
5270	// only the relevant declarations are emitted.
5271	if (IsOpenMPDevice) {
5272	CmdArgs.push_back("-fopenmp-is-device");
5273	if (OpenMPDeviceInput) {
5274	CmdArgs.push_back("-fopenmp-host-ir-file-path");
5275	CmdArgs.push_back(Args.MakeArgString(OpenMPDeviceInput->getFilename()));
5276	}
5277	}
5278
5279	// For all the host OpenMP offloading compile jobs we need to pass the targets
5280	// information using -fopenmp-targets= option.
5281	if (JA.isHostOffloading(Action::OFK_OpenMP)) {
5282	SmallString<128> TargetInfo("-fopenmp-targets=");
5283
5284	Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ);
5285	(0) . __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 5286, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Tgts && Tgts->getNumValues() &&
5286	(0) . __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 5286, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true"> "OpenMP offloading has to have targets specified.");
5287	for (unsigned i = 0; i < Tgts->getNumValues(); ++i) {
5288	if (i)
5289	TargetInfo += ',';
5290	// We need to get the string from the triple because it may be not exactly
5291	// the same as the one we get directly from the arguments.
5292	llvm::Triple T(Tgts->getValue(i));
5293	TargetInfo += T.getTriple();
5294	}
5295	CmdArgs.push_back(Args.MakeArgString(TargetInfo.str()));
5296	}
5297
5298	bool WholeProgramVTables =
5299	Args.hasFlag(options::OPT_fwhole_program_vtables,
5300	options::OPT_fno_whole_program_vtables, false);
5301	if (WholeProgramVTables) {
5302	if (!D.isUsingLTO())
5303	D.Diag(diag::err_drv_argument_only_allowed_with)
5304	<< "-fwhole-program-vtables"
5305	<< "-flto";
5306	CmdArgs.push_back("-fwhole-program-vtables");
5307	}
5308
5309	bool RequiresSplitLTOUnit = WholeProgramVTables \|\| Sanitize.needsLTO();
5310	bool SplitLTOUnit =
5311	Args.hasFlag(options::OPT_fsplit_lto_unit,
5312	options::OPT_fno_split_lto_unit, RequiresSplitLTOUnit);
5313	if (RequiresSplitLTOUnit && !SplitLTOUnit)
5314	D.Diag(diag::err_drv_argument_not_allowed_with)
5315	<< "-fno-split-lto-unit"
5316	<< (WholeProgramVTables ? "-fwhole-program-vtables" : "-fsanitize=cfi");
5317	if (SplitLTOUnit)
5318	CmdArgs.push_back("-fsplit-lto-unit");
5319
5320	if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel,
5321	options::OPT_fno_experimental_isel)) {
5322	CmdArgs.push_back("-mllvm");
5323	if (A->getOption().matches(options::OPT_fexperimental_isel)) {
5324	CmdArgs.push_back("-global-isel=1");
5325
5326	// GISel is on by default on AArch64 -O0, so don't bother adding
5327	// the fallback remarks for it. Other combinations will add a warning of
5328	// some kind.
5329	bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64;
5330	bool IsOptLevelSupported = false;
5331
5332	Arg *A = Args.getLastArg(options::OPT_O_Group);
5333	if (Triple.getArch() == llvm::Triple::aarch64) {
5334	if (!A \|\| A->getOption().matches(options::OPT_O0))
5335	IsOptLevelSupported = true;
5336	}
5337	if (!IsArchSupported \|\| !IsOptLevelSupported) {
5338	CmdArgs.push_back("-mllvm");
5339	CmdArgs.push_back("-global-isel-abort=2");
5340
5341	if (!IsArchSupported)
5342	D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName();
5343	else
5344	D.Diag(diag::warn_drv_experimental_isel_incomplete_opt);
5345	}
5346	} else {
5347	CmdArgs.push_back("-global-isel=0");
5348	}
5349	}
5350
5351	if (Args.hasArg(options::OPT_forder_file_instrumentation)) {
5352	CmdArgs.push_back("-forder-file-instrumentation");
5353	// Enable order file instrumentation when ThinLTO is not on. When ThinLTO is
5354	// on, we need to pass these flags as linker flags and that will be handled
5355	// outside of the compiler.
5356	if (!D.isUsingLTO()) {
5357	CmdArgs.push_back("-mllvm");
5358	CmdArgs.push_back("-enable-order-file-instrumentation");
5359	}
5360	}
5361
5362	if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128,
5363	options::OPT_fno_force_enable_int128)) {
5364	if (A->getOption().matches(options::OPT_fforce_enable_int128))
5365	CmdArgs.push_back("-fforce-enable-int128");
5366	}
5367
5368	if (Args.hasFlag(options::OPT_fcomplete_member_pointers,
5369	options::OPT_fno_complete_member_pointers, false))
5370	CmdArgs.push_back("-fcomplete-member-pointers");
5371
5372	if (!Args.hasFlag(options::OPT_fcxx_static_destructors,
5373	options::OPT_fno_cxx_static_destructors, true))
5374	CmdArgs.push_back("-fno-c++-static-destructors");
5375
5376	if (Arg *A = Args.getLastArg(options::OPT_moutline,
5377	options::OPT_mno_outline)) {
5378	if (A->getOption().matches(options::OPT_moutline)) {
5379	// We only support -moutline in AArch64 right now. If we're not compiling
5380	// for AArch64, emit a warning and ignore the flag. Otherwise, add the
5381	// proper mllvm flags.
5382	if (Triple.getArch() != llvm::Triple::aarch64) {
5383	D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName();
5384	} else {
5385	CmdArgs.push_back("-mllvm");
5386	CmdArgs.push_back("-enable-machine-outliner");
5387	}
5388	} else {
5389	// Disable all outlining behaviour.
5390	CmdArgs.push_back("-mllvm");
5391	CmdArgs.push_back("-enable-machine-outliner=never");
5392	}
5393	}
5394
5395	if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig,
5396	(TC.getTriple().isOSBinFormatELF() \|\|
5397	TC.getTriple().isOSBinFormatCOFF()) &&
5398	!TC.getTriple().isPS4() &&
5399	!TC.getTriple().isOSNetBSD() &&
5400	!Distro(D.getVFS()).IsGentoo() &&
5401	!TC.getTriple().isAndroid() &&
5402	TC.useIntegratedAs()))
5403	CmdArgs.push_back("-faddrsig");
5404
5405	// Finally add the compile command to the compilation.
5406	if (Args.hasArg(options::OPT__SLASH_fallback) &&
5407	Output.getType() == types::TY_Object &&
5408	(InputType == types::TY_C \|\| InputType == types::TY_CXX)) {
5409	auto CLCommand =
5410	getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput);
5411	C.addCommand(llvm::make_unique<FallbackCommand>(
5412	JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand)));
5413	} else if (Args.hasArg(options::OPT__SLASH_fallback) &&
5414	isa<PrecompileJobAction>(JA)) {
5415	// In /fallback builds, run the main compilation even if the pch generation
5416	// fails, so that the main compilation's fallback to cl.exe runs.
5417	C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec,
5418	CmdArgs, Inputs));
5419	} else {
5420	C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
5421	}
5422
5423	// Make the compile command echo its inputs for /showFilenames.
5424	if (Output.getType() == types::TY_Object &&
5425	Args.hasFlag(options::OPT__SLASH_showFilenames,
5426	options::OPT__SLASH_showFilenames_, false)) {
5427	C.getJobs().getJobs().back()->setPrintInputFilenames(true);
5428	}
5429
5430	if (Arg *A = Args.getLastArg(options::OPT_pg))
5431	if (!shouldUseFramePointer(Args, Triple))
5432	D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer"
5433	<< A->getAsString(Args);
5434
5435	// Claim some arguments which clang supports automatically.
5436
5437	// -fpch-preprocess is used with gcc to add a special marker in the output to
5438	// include the PCH file.
5439	Args.ClaimAllArgs(options::OPT_fpch_preprocess);
5440
5441	// Claim some arguments which clang doesn't support, but we don't
5442	// care to warn the user about.
5443	Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group);
5444	Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group);
5445
5446	// Disable warnings for clang -E -emit-llvm foo.c
5447	Args.ClaimAllArgs(options::OPT_emit_llvm);
5448	}
5449
5450	Clang::Clang(const ToolChain &TC)
5451	// CAUTION! The first constructor argument ("clang") is not arbitrary,
5452	// as it is for other tools. Some operations on a Tool actually test
5453	// whether that tool is Clang based on the Tool's Name as a string.
5454	: Tool("clang", "clang frontend", TC, RF_Full) {}
5455
5456	Clang::~Clang() {}
5457
5458	/// Add options related to the Objective-C runtime/ABI.
5459	///
5460	/// Returns true if the runtime is non-fragile.
5461	ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args,
5462	ArgStringList &cmdArgs,
5463	RewriteKind rewriteKind) const {
5464	// Look for the controlling runtime option.
5465	Arg *runtimeArg =
5466	args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime,
5467	options::OPT_fobjc_runtime_EQ);
5468
5469	// Just forward -fobjc-runtime= to the frontend. This supercedes
5470	// options about fragility.
5471	if (runtimeArg &&
5472	runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) {
5473	ObjCRuntime runtime;
5474	StringRef value = runtimeArg->getValue();
5475	if (runtime.tryParse(value)) {
5476	getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime)
5477	<< value;
5478	}
5479	if ((runtime.getKind() == ObjCRuntime::GNUstep) &&
5480	(runtime.getVersion() >= VersionTuple(2, 0)))
5481	if (!getToolChain().getTriple().isOSBinFormatELF() &&
5482	!getToolChain().getTriple().isOSBinFormatCOFF()) {
5483	getToolChain().getDriver().Diag(
5484	diag::err_drv_gnustep_objc_runtime_incompatible_binary)
5485	<< runtime.getVersion().getMajor();
5486	}
5487
5488	runtimeArg->render(args, cmdArgs);
5489	return runtime;
5490	}
5491
5492	// Otherwise, we'll need the ABI "version". Version numbers are
5493	// slightly confusing for historical reasons:
5494	// 1 - Traditional "fragile" ABI
5495	// 2 - Non-fragile ABI, version 1
5496	// 3 - Non-fragile ABI, version 2
5497	unsigned objcABIVersion = 1;
5498	// If -fobjc-abi-version= is present, use that to set the version.
5499	if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) {
5500	StringRef value = abiArg->getValue();
5501	if (value == "1")
5502	objcABIVersion = 1;
5503	else if (value == "2")
5504	objcABIVersion = 2;
5505	else if (value == "3")
5506	objcABIVersion = 3;
5507	else
5508	getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value;
5509	} else {
5510	// Otherwise, determine if we are using the non-fragile ABI.
5511	bool nonFragileABIIsDefault =
5512	(rewriteKind == RK_NonFragile \|\|
5513	(rewriteKind == RK_None &&
5514	getToolChain().IsObjCNonFragileABIDefault()));
5515	if (args.hasFlag(options::OPT_fobjc_nonfragile_abi,
5516	options::OPT_fno_objc_nonfragile_abi,
5517	nonFragileABIIsDefault)) {
5518	// Determine the non-fragile ABI version to use.
5519	#ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO
5520	unsigned nonFragileABIVersion = 1;
5521	#else
5522	unsigned nonFragileABIVersion = 2;
5523	#endif
5524
5525	if (Arg *abiArg =
5526	args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) {
5527	StringRef value = abiArg->getValue();
5528	if (value == "1")
5529	nonFragileABIVersion = 1;
5530	else if (value == "2")
5531	nonFragileABIVersion = 2;
5532	else
5533	getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported)
5534	<< value;
5535	}
5536
5537	objcABIVersion = 1 + nonFragileABIVersion;
5538	} else {
5539	objcABIVersion = 1;
5540	}
5541	}
5542
5543	// We don't actually care about the ABI version other than whether
5544	// it's non-fragile.
5545	bool isNonFragile = objcABIVersion != 1;
5546
5547	// If we have no runtime argument, ask the toolchain for its default runtime.
5548	// However, the rewriter only really supports the Mac runtime, so assume that.
5549	ObjCRuntime runtime;
5550	if (!runtimeArg) {
5551	switch (rewriteKind) {
5552	case RK_None:
5553	runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
5554	break;
5555	case RK_Fragile:
5556	runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple());
5557	break;
5558	case RK_NonFragile:
5559	runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
5560	break;
5561	}
5562
5563	// -fnext-runtime
5564	} else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) {
5565	// On Darwin, make this use the default behavior for the toolchain.
5566	if (getToolChain().getTriple().isOSDarwin()) {
5567	runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
5568
5569	// Otherwise, build for a generic macosx port.
5570	} else {
5571	runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
5572	}
5573
5574	// -fgnu-runtime
5575	} else {
5576	getOption().matches(options..OPT_fgnu_runtime)", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 5576, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime));
5577	// Legacy behaviour is to target the gnustep runtime if we are in
5578	// non-fragile mode or the GCC runtime in fragile mode.
5579	if (isNonFragile)
5580	runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(2, 0));
5581	else
5582	runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
5583	}
5584
5585	cmdArgs.push_back(
5586	args.MakeArgString("-fobjc-runtime=" + runtime.getAsString()));
5587	return runtime;
5588	}
5589
5590	static bool maybeConsumeDash(const std::string &EH, size_t &I) {
5591	bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-');
5592	I += HaveDash;
5593	return !HaveDash;
5594	}
5595
5596	namespace {
5597	struct EHFlags {
5598	bool Synch = false;
5599	bool Asynch = false;
5600	bool NoUnwindC = false;
5601	};
5602	} // end anonymous namespace
5603
5604	/// /EH controls whether to run destructor cleanups when exceptions are
5605	/// thrown. There are three modifiers:
5606	/// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions.
5607	/// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions.
5608	/// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR.
5609	/// - c: Assume that extern "C" functions are implicitly nounwind.
5610	/// The default is /EHs-c-, meaning cleanups are disabled.
5611	static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
5612	EHFlags EH;
5613
5614	std::vector<std::string> EHArgs =
5615	Args.getAllArgValues(options::OPT__SLASH_EH);
5616	for (auto EHVal : EHArgs) {
5617	for (size_t I = 0, E = EHVal.size(); I != E; ++I) {
5618	switch (EHVal[I]) {
5619	case 'a':
5620	EH.Asynch = maybeConsumeDash(EHVal, I);
5621	if (EH.Asynch)
5622	EH.Synch = false;
5623	continue;
5624	case 'c':
5625	EH.NoUnwindC = maybeConsumeDash(EHVal, I);
5626	continue;
5627	case 's':
5628	EH.Synch = maybeConsumeDash(EHVal, I);
5629	if (EH.Synch)
5630	EH.Asynch = false;
5631	continue;
5632	default:
5633	break;
5634	}
5635	D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal;
5636	break;
5637	}
5638	}
5639	// The /GX, /GX- flags are only processed if there are not /EH flags.
5640	// The default is that /GX is not specified.
5641	if (EHArgs.empty() &&
5642	Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_,
5643	/default=/false)) {
5644	EH.Synch = true;
5645	EH.NoUnwindC = true;
5646	}
5647
5648	return EH;
5649	}
5650
5651	void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
5652	ArgStringList &CmdArgs,
5653	codegenoptions::DebugInfoKind *DebugInfoKind,
5654	bool *EmitCodeView) const {
5655	unsigned RTOptionID = options::OPT__SLASH_MT;
5656
5657	if (Args.hasArg(options::OPT__SLASH_LDd))
5658	// The /LDd option implies /MTd. The dependent lib part can be overridden,
5659	// but defining _DEBUG is sticky.
5660	RTOptionID = options::OPT__SLASH_MTd;
5661
5662	if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group))
5663	RTOptionID = A->getOption().getID();
5664
5665	StringRef FlagForCRT;
5666	switch (RTOptionID) {
5667	case options::OPT__SLASH_MD:
5668	if (Args.hasArg(options::OPT__SLASH_LDd))
5669	CmdArgs.push_back("-D_DEBUG");
5670	CmdArgs.push_back("-D_MT");
5671	CmdArgs.push_back("-D_DLL");
5672	FlagForCRT = "--dependent-lib=msvcrt";
5673	break;
5674	case options::OPT__SLASH_MDd:
5675	CmdArgs.push_back("-D_DEBUG");
5676	CmdArgs.push_back("-D_MT");
5677	CmdArgs.push_back("-D_DLL");
5678	FlagForCRT = "--dependent-lib=msvcrtd";
5679	break;
5680	case options::OPT__SLASH_MT:
5681	if (Args.hasArg(options::OPT__SLASH_LDd))
5682	CmdArgs.push_back("-D_DEBUG");
5683	CmdArgs.push_back("-D_MT");
5684	CmdArgs.push_back("-flto-visibility-public-std");
5685	FlagForCRT = "--dependent-lib=libcmt";
5686	break;
5687	case options::OPT__SLASH_MTd:
5688	CmdArgs.push_back("-D_DEBUG");
5689	CmdArgs.push_back("-D_MT");
5690	CmdArgs.push_back("-flto-visibility-public-std");
5691	FlagForCRT = "--dependent-lib=libcmtd";
5692	break;
5693	default:
5694	llvm_unreachable("Unexpected option ID.");
5695	}
5696
5697	if (Args.hasArg(options::OPT__SLASH_Zl)) {
5698	CmdArgs.push_back("-D_VC_NODEFAULTLIB");
5699	} else {
5700	CmdArgs.push_back(FlagForCRT.data());
5701
5702	// This provides POSIX compatibility (maps 'open' to '_open'), which most
5703	// users want. The /Za flag to cl.exe turns this off, but it's not
5704	// implemented in clang.
5705	CmdArgs.push_back("--dependent-lib=oldnames");
5706	}
5707
5708	if (Arg *A = Args.getLastArg(options::OPT_show_includes))
5709	A->render(Args, CmdArgs);
5710
5711	// This controls whether or not we emit RTTI data for polymorphic types.
5712	if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR,
5713	/default=/false))
5714	CmdArgs.push_back("-fno-rtti-data");
5715
5716	// This controls whether or not we emit stack-protector instrumentation.
5717	// In MSVC, Buffer Security Check (/GS) is on by default.
5718	if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_,
5719	/default=/true)) {
5720	CmdArgs.push_back("-stack-protector");
5721	CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong)));
5722	}
5723
5724	// Emit CodeView if -Z7, -Zd, or -gline-tables-only are present.
5725	if (Arg *DebugInfoArg =
5726	Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd,
5727	options::OPT_gline_tables_only)) {
5728	*EmitCodeView = true;
5729	if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7))
5730	*DebugInfoKind = codegenoptions::LimitedDebugInfo;
5731	else
5732	*DebugInfoKind = codegenoptions::DebugLineTablesOnly;
5733	} else {
5734	*EmitCodeView = false;
5735	}
5736
5737	const Driver &D = getToolChain().getDriver();
5738	EHFlags EH = parseClangCLEHFlags(D, Args);
5739	if (EH.Synch \|\| EH.Asynch) {
5740	if (types::isCXX(InputType))
5741	CmdArgs.push_back("-fcxx-exceptions");
5742	CmdArgs.push_back("-fexceptions");
5743	}
5744	if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC)
5745	CmdArgs.push_back("-fexternc-nounwind");
5746
5747	// /EP should expand to -E -P.
5748	if (Args.hasArg(options::OPT__SLASH_EP)) {
5749	CmdArgs.push_back("-E");
5750	CmdArgs.push_back("-P");
5751	}
5752
5753	unsigned VolatileOptionID;
5754	if (getToolChain().getArch() == llvm::Triple::x86_64 \|\|
5755	getToolChain().getArch() == llvm::Triple::x86)
5756	VolatileOptionID = options::OPT__SLASH_volatile_ms;
5757	else
5758	VolatileOptionID = options::OPT__SLASH_volatile_iso;
5759
5760	if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group))
5761	VolatileOptionID = A->getOption().getID();
5762
5763	if (VolatileOptionID == options::OPT__SLASH_volatile_ms)
5764	CmdArgs.push_back("-fms-volatile");
5765
5766	if (Args.hasFlag(options::OPT__SLASH_Zc_dllexportInlines_,
5767	options::OPT__SLASH_Zc_dllexportInlines,
5768	false)) {
5769	if (Args.hasArg(options::OPT__SLASH_fallback)) {
5770	D.Diag(clang::diag::err_drv_dllexport_inlines_and_fallback);
5771	} else {
5772	CmdArgs.push_back("-fno-dllexport-inlines");
5773	}
5774	}
5775
5776	Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg);
5777	Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb);
5778	if (MostGeneralArg && BestCaseArg)
5779	D.Diag(clang::diag::err_drv_argument_not_allowed_with)
5780	<< MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args);
5781
5782	if (MostGeneralArg) {
5783	Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms);
5784	Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm);
5785	Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv);
5786
5787	Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg;
5788	Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg;
5789	if (FirstConflict && SecondConflict && FirstConflict != SecondConflict)
5790	D.Diag(clang::diag::err_drv_argument_not_allowed_with)
5791	<< FirstConflict->getAsString(Args)
5792	<< SecondConflict->getAsString(Args);
5793
5794	if (SingleArg)
5795	CmdArgs.push_back("-fms-memptr-rep=single");
5796	else if (MultipleArg)
5797	CmdArgs.push_back("-fms-memptr-rep=multiple");
5798	else
5799	CmdArgs.push_back("-fms-memptr-rep=virtual");
5800	}
5801
5802	// Parse the default calling convention options.
5803	if (Arg *CCArg =
5804	Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr,
5805	options::OPT__SLASH_Gz, options::OPT__SLASH_Gv,
5806	options::OPT__SLASH_Gregcall)) {
5807	unsigned DCCOptId = CCArg->getOption().getID();
5808	const char *DCCFlag = nullptr;
5809	bool ArchSupported = true;
5810	llvm::Triple::ArchType Arch = getToolChain().getArch();
5811	switch (DCCOptId) {
5812	case options::OPT__SLASH_Gd:
5813	DCCFlag = "-fdefault-calling-conv=cdecl";
5814	break;
5815	case options::OPT__SLASH_Gr:
5816	ArchSupported = Arch == llvm::Triple::x86;
5817	DCCFlag = "-fdefault-calling-conv=fastcall";
5818	break;
5819	case options::OPT__SLASH_Gz:
5820	ArchSupported = Arch == llvm::Triple::x86;
5821	DCCFlag = "-fdefault-calling-conv=stdcall";
5822	break;
5823	case options::OPT__SLASH_Gv:
5824	ArchSupported = Arch == llvm::Triple::x86 \|\| Arch == llvm::Triple::x86_64;
5825	DCCFlag = "-fdefault-calling-conv=vectorcall";
5826	break;
5827	case options::OPT__SLASH_Gregcall:
5828	ArchSupported = Arch == llvm::Triple::x86 \|\| Arch == llvm::Triple::x86_64;
5829	DCCFlag = "-fdefault-calling-conv=regcall";
5830	break;
5831	}
5832
5833	// MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either.
5834	if (ArchSupported && DCCFlag)
5835	CmdArgs.push_back(DCCFlag);
5836	}
5837
5838	if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ))
5839	A->render(Args, CmdArgs);
5840
5841	if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) {
5842	CmdArgs.push_back("-fdiagnostics-format");
5843	if (Args.hasArg(options::OPT__SLASH_fallback))
5844	CmdArgs.push_back("msvc-fallback");
5845	else
5846	CmdArgs.push_back("msvc");
5847	}
5848
5849	if (Arg *A = Args.getLastArg(options::OPT__SLASH_guard)) {
5850	SmallVector<StringRef, 1> SplitArgs;
5851	StringRef(A->getValue()).split(SplitArgs, ",");
5852	bool Instrument = false;
5853	bool NoChecks = false;
5854	for (StringRef Arg : SplitArgs) {
5855	if (Arg.equals_lower("cf"))
5856	Instrument = true;
5857	else if (Arg.equals_lower("cf-"))
5858	Instrument = false;
5859	else if (Arg.equals_lower("nochecks"))
5860	NoChecks = true;
5861	else if (Arg.equals_lower("nochecks-"))
5862	NoChecks = false;
5863	else
5864	D.Diag(diag::err_drv_invalid_value) << A->getSpelling() << Arg;
5865	}
5866	// Currently there's no support emitting CFG instrumentation; the flag only
5867	// emits the table of address-taken functions.
5868	if (Instrument \|\| NoChecks)
5869	CmdArgs.push_back("-cfguard");
5870	}
5871	}
5872
5873	visualstudio::Compiler *Clang::getCLFallback() const {
5874	if (!CLFallback)
5875	CLFallback.reset(new visualstudio::Compiler(getToolChain()));
5876	return CLFallback.get();
5877	}
5878
5879
5880	const char *Clang::getBaseInputName(const ArgList &Args,
5881	const InputInfo &Input) {
5882	return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput()));
5883	}
5884
5885	const char *Clang::getBaseInputStem(const ArgList &Args,
5886	const InputInfoList &Inputs) {
5887	const char *Str = getBaseInputName(Args, Inputs[0]);
5888
5889	if (const char *End = strrchr(Str, '.'))
5890	return Args.MakeArgString(std::string(Str, End));
5891
5892	return Str;
5893	}
5894
5895	const char *Clang::getDependencyFileName(const ArgList &Args,
5896	const InputInfoList &Inputs) {
5897	// FIXME: Think about this more.
5898	std::string Res;
5899
5900	if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) {
5901	std::string Str(OutputOpt->getValue());
5902	Res = Str.substr(0, Str.rfind('.'));
5903	} else {
5904	Res = getBaseInputStem(Args, Inputs);
5905	}
5906	return Args.MakeArgString(Res + ".d");
5907	}
5908
5909	// Begin ClangAs
5910
5911	void ClangAs::AddMIPSTargetArgs(const ArgList &Args,
5912	ArgStringList &CmdArgs) const {
5913	StringRef CPUName;
5914	StringRef ABIName;
5915	const llvm::Triple &Triple = getToolChain().getTriple();
5916	mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
5917
5918	CmdArgs.push_back("-target-abi");
5919	CmdArgs.push_back(ABIName.data());
5920	}
5921
5922	void ClangAs::AddX86TargetArgs(const ArgList &Args,
5923	ArgStringList &CmdArgs) const {
5924	if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
5925	StringRef Value = A->getValue();
5926	if (Value == "intel" \|\| Value == "att") {
5927	CmdArgs.push_back("-mllvm");
5928	CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
5929	} else {
5930	getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
5931	<< A->getOption().getName() << Value;
5932	}
5933	}
5934	}
5935
5936	void ClangAs::AddRISCVTargetArgs(const ArgList &Args,
5937	ArgStringList &CmdArgs) const {
5938	const llvm::Triple &Triple = getToolChain().getTriple();
5939	StringRef ABIName = riscv::getRISCVABI(Args, Triple);
5940
5941	CmdArgs.push_back("-target-abi");
5942	CmdArgs.push_back(ABIName.data());
5943	}
5944
5945	void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
5946	const InputInfo &Output, const InputInfoList &Inputs,
5947	const ArgList &Args,
5948	const char *LinkingOutput) const {
5949	ArgStringList CmdArgs;
5950
5951	(0) . __assert_fail ("Inputs.size() == 1 && \"Unexpected number of inputs.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 5951, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Inputs.size() == 1 && "Unexpected number of inputs.");
5952	const InputInfo &Input = Inputs[0];
5953
5954	const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
5955	const std::string &TripleStr = Triple.getTriple();
5956	const auto &D = getToolChain().getDriver();
5957
5958	// Don't warn about "clang -w -c foo.s"
5959	Args.ClaimAllArgs(options::OPT_w);
5960	// and "clang -emit-llvm -c foo.s"
5961	Args.ClaimAllArgs(options::OPT_emit_llvm);
5962
5963	claimNoWarnArgs(Args);
5964
5965	// Invoke ourselves in -cc1as mode.
5966	//
5967	// FIXME: Implement custom jobs for internal actions.
5968	CmdArgs.push_back("-cc1as");
5969
5970	// Add the "effective" target triple.
5971	CmdArgs.push_back("-triple");
5972	CmdArgs.push_back(Args.MakeArgString(TripleStr));
5973
5974	// Set the output mode, we currently only expect to be used as a real
5975	// assembler.
5976	CmdArgs.push_back("-filetype");
5977	CmdArgs.push_back("obj");
5978
5979	// Set the main file name, so that debug info works even with
5980	// -save-temps or preprocessed assembly.
5981	CmdArgs.push_back("-main-file-name");
5982	CmdArgs.push_back(Clang::getBaseInputName(Args, Input));
5983
5984	// Add the target cpu
5985	std::string CPU = getCPUName(Args, Triple, /FromAs/ true);
5986	if (!CPU.empty()) {
5987	CmdArgs.push_back("-target-cpu");
5988	CmdArgs.push_back(Args.MakeArgString(CPU));
5989	}
5990
5991	// Add the target features
5992	getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true);
5993
5994	// Ignore explicit -force_cpusubtype_ALL option.
5995	(void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
5996
5997	// Pass along any -I options so we get proper .include search paths.
5998	Args.AddAllArgs(CmdArgs, options::OPT_I_Group);
5999
6000	// Determine the original source input.
6001	const Action *SourceAction = &JA;
6002	while (SourceAction->getKind() != Action::InputClass) {
6003	(0) . __assert_fail ("!SourceAction->getInputs().empty() && \"unexpected root action!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6003, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(!SourceAction->getInputs().empty() && "unexpected root action!");
6004	SourceAction = SourceAction->getInputs()[0];
6005	}
6006
6007	// Forward -g and handle debug info related flags, assuming we are dealing
6008	// with an actual assembly file.
6009	bool WantDebug = false;
6010	unsigned DwarfVersion = 0;
6011	Args.ClaimAllArgs(options::OPT_g_Group);
6012	if (Arg *A = Args.getLastArg(options::OPT_g_Group)) {
6013	WantDebug = !A->getOption().matches(options::OPT_g0) &&
6014	!A->getOption().matches(options::OPT_ggdb0);
6015	if (WantDebug)
6016	DwarfVersion = DwarfVersionNum(A->getSpelling());
6017	}
6018	if (DwarfVersion == 0)
6019	DwarfVersion = getToolChain().GetDefaultDwarfVersion();
6020
6021	codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
6022
6023	if (SourceAction->getType() == types::TY_Asm \|\|
6024	SourceAction->getType() == types::TY_PP_Asm) {
6025	// You might think that it would be ok to set DebugInfoKind outside of
6026	// the guard for source type, however there is a test which asserts
6027	// that some assembler invocation receives no -debug-info-kind,
6028	// and it's not clear whether that test is just overly restrictive.
6029	DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo
6030	: codegenoptions::NoDebugInfo);
6031	// Add the -fdebug-compilation-dir flag if needed.
6032	addDebugCompDirArg(Args, CmdArgs);
6033
6034	addDebugPrefixMapArg(getToolChain().getDriver(), Args, CmdArgs);
6035
6036	// Set the AT_producer to the clang version when using the integrated
6037	// assembler on assembly source files.
6038	CmdArgs.push_back("-dwarf-debug-producer");
6039	CmdArgs.push_back(Args.MakeArgString(getClangFullVersion()));
6040
6041	// And pass along -I options
6042	Args.AddAllArgs(CmdArgs, options::OPT_I);
6043	}
6044	RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion,
6045	llvm::DebuggerKind::Default);
6046	RenderDebugInfoCompressionArgs(Args, CmdArgs, D, getToolChain());
6047
6048
6049	// Handle -fPIC et al -- the relocation-model affects the assembler
6050	// for some targets.
6051	llvm::Reloc::Model RelocationModel;
6052	unsigned PICLevel;
6053	bool IsPIE;
6054	std::tie(RelocationModel, PICLevel, IsPIE) =
6055	ParsePICArgs(getToolChain(), Args);
6056
6057	const char *RMName = RelocationModelName(RelocationModel);
6058	if (RMName) {
6059	CmdArgs.push_back("-mrelocation-model");
6060	CmdArgs.push_back(RMName);
6061	}
6062
6063	// Optionally embed the -cc1as level arguments into the debug info, for build
6064	// analysis.
6065	if (getToolChain().UseDwarfDebugFlags()) {
6066	ArgStringList OriginalArgs;
6067	for (const auto &Arg : Args)
6068	Arg->render(Args, OriginalArgs);
6069
6070	SmallString<256> Flags;
6071	const char *Exec = getToolChain().getDriver().getClangProgramPath();
6072	Flags += Exec;
6073	for (const char *OriginalArg : OriginalArgs) {
6074	SmallString<128> EscapedArg;
6075	EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
6076	Flags += " ";
6077	Flags += EscapedArg;
6078	}
6079	CmdArgs.push_back("-dwarf-debug-flags");
6080	CmdArgs.push_back(Args.MakeArgString(Flags));
6081	}
6082
6083	// FIXME: Add -static support, once we have it.
6084
6085	// Add target specific flags.
6086	switch (getToolChain().getArch()) {
6087	default:
6088	break;
6089
6090	case llvm::Triple::mips:
6091	case llvm::Triple::mipsel:
6092	case llvm::Triple::mips64:
6093	case llvm::Triple::mips64el:
6094	AddMIPSTargetArgs(Args, CmdArgs);
6095	break;
6096
6097	case llvm::Triple::x86:
6098	case llvm::Triple::x86_64:
6099	AddX86TargetArgs(Args, CmdArgs);
6100	break;
6101
6102	case llvm::Triple::arm:
6103	case llvm::Triple::armeb:
6104	case llvm::Triple::thumb:
6105	case llvm::Triple::thumbeb:
6106	// This isn't in AddARMTargetArgs because we want to do this for assembly
6107	// only, not C/C++.
6108	if (Args.hasFlag(options::OPT_mdefault_build_attributes,
6109	options::OPT_mno_default_build_attributes, true)) {
6110	CmdArgs.push_back("-mllvm");
6111	CmdArgs.push_back("-arm-add-build-attributes");
6112	}
6113	break;
6114
6115	case llvm::Triple::riscv32:
6116	case llvm::Triple::riscv64:
6117	AddRISCVTargetArgs(Args, CmdArgs);
6118	break;
6119	}
6120
6121	// Consume all the warning flags. Usually this would be handled more
6122	// gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as
6123	// doesn't handle that so rather than warning about unused flags that are
6124	// actually used, we'll lie by omission instead.
6125	// FIXME: Stop lying and consume only the appropriate driver flags
6126	Args.ClaimAllArgs(options::OPT_W_Group);
6127
6128	CollectArgsForIntegratedAssembler(C, Args, CmdArgs,
6129	getToolChain().getDriver());
6130
6131	Args.AddAllArgs(CmdArgs, options::OPT_mllvm);
6132
6133	(0) . __assert_fail ("Output.isFilename() && \"Unexpected lipo output.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6133, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Output.isFilename() && "Unexpected lipo output.");
6134	CmdArgs.push_back("-o");
6135	CmdArgs.push_back(Output.getFilename());
6136
6137	const llvm::Triple &T = getToolChain().getTriple();
6138	Arg *A;
6139	if (getDebugFissionKind(D, Args, A) == DwarfFissionKind::Split &&
6140	T.isOSBinFormatELF()) {
6141	CmdArgs.push_back("-split-dwarf-file");
6142	CmdArgs.push_back(SplitDebugName(Args, Input, Output));
6143	}
6144
6145	(0) . __assert_fail ("Input.isFilename() && \"Invalid input.\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6145, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Input.isFilename() && "Invalid input.");
6146	CmdArgs.push_back(Input.getFilename());
6147
6148	const char *Exec = getToolChain().getDriver().getClangProgramPath();
6149	C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
6150	}
6151
6152	// Begin OffloadBundler
6153
6154	void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA,
6155	const InputInfo &Output,
6156	const InputInfoList &Inputs,
6157	const llvm::opt::ArgList &TCArgs,
6158	const char *LinkingOutput) const {
6159	// The version with only one output is expected to refer to a bundling job.
6160	(0) . __assert_fail ("isa(JA) && \"Expecting bundling job!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6160, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!");
6161
6162	// The bundling command looks like this:
6163	// clang-offload-bundler -type=bc
6164	// -targets=host-triple,openmp-triple1,openmp-triple2
6165	// -outputs=input_file
6166	// -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
6167
6168	ArgStringList CmdArgs;
6169
6170	// Get the type.
6171	CmdArgs.push_back(TCArgs.MakeArgString(
6172	Twine("-type=") + types::getTypeTempSuffix(Output.getType())));
6173
6174	(0) . __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6175, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(JA.getInputs().size() == Inputs.size() &&
6175	(0) . __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6175, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true"> "Not have inputs for all dependence actions??");
6176
6177	// Get the targets.
6178	SmallString<128> Triples;
6179	Triples += "-targets=";
6180	for (unsigned I = 0; I < Inputs.size(); ++I) {
6181	if (I)
6182	Triples += ',';
6183
6184	// Find ToolChain for this input.
6185	Action::OffloadKind CurKind = Action::OFK_Host;
6186	const ToolChain *CurTC = &getToolChain();
6187	const Action *CurDep = JA.getInputs()[I];
6188
6189	if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) {
6190	CurTC = nullptr;
6191	OA->doOnEachDependence([&](Action A, const ToolChain TC, const char *) {
6192	(0) . __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6192, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(CurTC == nullptr && "Expected one dependence!");
6193	CurKind = A->getOffloadingDeviceKind();
6194	CurTC = TC;
6195	});
6196	}
6197	Triples += Action::GetOffloadKindName(CurKind);
6198	Triples += '-';
6199	Triples += CurTC->getTriple().normalize();
6200	if (CurKind == Action::OFK_HIP && CurDep->getOffloadingArch()) {
6201	Triples += '-';
6202	Triples += CurDep->getOffloadingArch();
6203	}
6204	}
6205	CmdArgs.push_back(TCArgs.MakeArgString(Triples));
6206
6207	// Get bundled file command.
6208	CmdArgs.push_back(
6209	TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename()));
6210
6211	// Get unbundled files command.
6212	SmallString<128> UB;
6213	UB += "-inputs=";
6214	for (unsigned I = 0; I < Inputs.size(); ++I) {
6215	if (I)
6216	UB += ',';
6217
6218	// Find ToolChain for this input.
6219	const ToolChain *CurTC = &getToolChain();
6220	if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) {
6221	CurTC = nullptr;
6222	OA->doOnEachDependence([&](Action , const ToolChain TC, const char *) {
6223	(0) . __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6223, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(CurTC == nullptr && "Expected one dependence!");
6224	CurTC = TC;
6225	});
6226	}
6227	UB += CurTC->getInputFilename(Inputs[I]);
6228	}
6229	CmdArgs.push_back(TCArgs.MakeArgString(UB));
6230
6231	// All the inputs are encoded as commands.
6232	C.addCommand(llvm::make_unique<Command>(
6233	JA, *this,
6234	TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
6235	CmdArgs, None));
6236	}
6237
6238	void OffloadBundler::ConstructJobMultipleOutputs(
6239	Compilation &C, const JobAction &JA, const InputInfoList &Outputs,
6240	const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs,
6241	const char *LinkingOutput) const {
6242	// The version with multiple outputs is expected to refer to a unbundling job.
6243	auto &UA = cast<OffloadUnbundlingJobAction>(JA);
6244
6245	// The unbundling command looks like this:
6246	// clang-offload-bundler -type=bc
6247	// -targets=host-triple,openmp-triple1,openmp-triple2
6248	// -inputs=input_file
6249	// -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
6250	// -unbundle
6251
6252	ArgStringList CmdArgs;
6253
6254	(0) . __assert_fail ("Inputs.size() == 1 && \"Expecting to unbundle a single file!\"", "/home/seafit/code_projects/clang_source/clang/lib/Driver/ToolChains/Clang.cpp", 6254, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(Inputs.size() == 1 && "Expecting to unbundle a single file!");
6255	InputInfo Input = Inputs.front();
6256
6257	// Get the type.
6258	CmdArgs.push_back(TCArgs.MakeArgString(
6259	Twine("-type=") + types::getTypeTempSuffix(Input.getType())));
6260
6261	// Get the targets.
6262	SmallString<128> Triples;
6263	Triples += "-targets=";
6264	auto DepInfo = UA.getDependentActionsInfo();
6265	for (unsigned I = 0; I < DepInfo.size(); ++I) {
6266	if (I)
6267	Triples += ',';
6268
6269	auto &Dep = DepInfo[I];
6270	Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind);
6271	Triples += '-';
6272	Triples += Dep.DependentToolChain->getTriple().normalize();
6273	if (Dep.DependentOffloadKind == Action::OFK_HIP &&
6274	!Dep.DependentBoundArch.empty()) {
6275	Triples += '-';
6276	Triples += Dep.DependentBoundArch;
6277	}
6278	}
6279
6280	CmdArgs.push_back(TCArgs.MakeArgString(Triples));
6281
6282	// Get bundled file command.
6283	CmdArgs.push_back(
6284	TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename()));
6285
6286	// Get unbundled files command.
6287	SmallString<128> UB;
6288	UB += "-outputs=";
6289	for (unsigned I = 0; I < Outputs.size(); ++I) {
6290	if (I)
6291	UB += ',';
6292	UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]);
6293	}
6294	CmdArgs.push_back(TCArgs.MakeArgString(UB));
6295	CmdArgs.push_back("-unbundle");
6296
6297	// All the inputs are encoded as commands.
6298	C.addCommand(llvm::make_unique<Command>(
6299	JA, *this,
6300	TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
6301	CmdArgs, None));
6302	}
6303

clang::driver::Driver::getDefaultModuleCachePath

Clang Project