| 1 | // REQUIRES: arm-registered-target |
| 2 | // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s |
| 3 | // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s |
| 4 | // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -S -o - %s | FileCheck -check-prefix=CHECKASM %s |
| 5 | |
| 6 | int g0; |
| 7 | // CHECKBASIC-DAG: @g0 = common global i32 0 |
| 8 | // CHECKASM-DAG: .comm g0,4,4 |
| 9 | __thread int TL_WITH_ALIAS; |
| 10 | // CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4 |
| 11 | // CHECKASM-DAG: .globl TL_WITH_ALIAS |
| 12 | // CHECKASM-DAG: .size TL_WITH_ALIAS, 4 |
| 13 | static int bar1 = 42; |
| 14 | // CHECKBASIC-DAG: @bar1 = internal global i32 42 |
| 15 | // CHECKASM-DAG: bar1: |
| 16 | // CHECKASM-DAG: .size bar1, 4 |
| 17 | |
| 18 | // PR24379: alias variable expected to have same size as aliasee even when types differ |
| 19 | const int wacom_usb_ids[] = {1, 1, 2, 3, 5, 8, 13, 0}; |
| 20 | // CHECKBASIC-DAG: @wacom_usb_ids = constant [8 x i32] [i32 1, i32 1, i32 2, i32 3, i32 5, i32 8, i32 13, i32 0], align 4 |
| 21 | // CHECKASM-DAG: .globl wacom_usb_ids |
| 22 | // CHECKASM-DAG: .size wacom_usb_ids, 32 |
| 23 | extern const int __mod_usb_device_table __attribute__ ((alias("wacom_usb_ids"))); |
| 24 | // CHECKBASIC-DAG: @__mod_usb_device_table = alias i32, getelementptr inbounds ([8 x i32], [8 x i32]* @wacom_usb_ids, i32 0, i32 0) |
| 25 | // CHECKASM-DAG: .globl __mod_usb_device_table |
| 26 | // CHECKASM-DAG: .set __mod_usb_device_table, wacom_usb_ids |
| 27 | // CHECKASM-NOT: .size __mod_usb_device_table |
| 28 | |
| 29 | extern int g1; |
| 30 | extern int g1 __attribute((alias("g0"))); |
| 31 | // CHECKBASIC-DAG: @g1 = alias i32, i32* @g0 |
| 32 | // CHECKASM-DAG: .globl g1 |
| 33 | // CHECKASM-DAG: .set g1, g0 |
| 34 | // CHECKASM-NOT: .size g1 |
| 35 | |
| 36 | extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS"))); |
| 37 | // CHECKBASIC-DAG: @__libc_errno = thread_local alias i32, i32* @TL_WITH_ALIAS |
| 38 | // CHECKASM-DAG: .globl __libc_errno |
| 39 | // CHECKASM-DAG: .set __libc_errno, TL_WITH_ALIAS |
| 40 | // CHECKASM-NOT: .size __libc_errno |
| 41 | |
| 42 | void f0(void) { } |
| 43 | extern void f1(void); |
| 44 | extern void f1(void) __attribute((alias("f0"))); |
| 45 | // CHECKBASIC-DAG: @f1 = alias void (), void ()* @f0 |
| 46 | // CHECKBASIC-DAG: @test8_foo = weak alias void (...), bitcast (void ()* @test8_bar to void (...)*) |
| 47 | // CHECKBASIC-DAG: @test8_zed = alias void (...), bitcast (void ()* @test8_bar to void (...)*) |
| 48 | // CHECKBASIC-DAG: @test9_zed = alias void (), void ()* @test9_bar |
| 49 | // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] { |
| 50 | |
| 51 | // Make sure that aliases cause referenced values to be emitted. |
| 52 | // PR3200 |
| 53 | static inline int foo1() { return 0; } |
| 54 | // CHECKBASIC-LABEL: define internal i32 @foo1() |
| 55 | int foo() __attribute__((alias("foo1"))); |
| 56 | int bar() __attribute__((alias("bar1"))); |
| 57 | |
| 58 | extern int test6(); |
| 59 | void test7() { test6(); } // test6 is emitted as extern. |
| 60 | |
| 61 | // test6 changes to alias. |
| 62 | int test6() __attribute__((alias("test7"))); |
| 63 | |
| 64 | static int inner(int a) { return 0; } |
| 65 | static int inner_weak(int a) { return 0; } |
| 66 | extern __typeof(inner) inner_a __attribute__((alias("inner"))); |
| 67 | static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak"))); |
| 68 | // CHECKCC: @inner_a = alias i32 (i32), i32 (i32)* @inner |
| 69 | // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] { |
| 70 | |
| 71 | int outer(int a) { return inner(a); } |
| 72 | // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] { |
| 73 | // CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}}) |
| 74 | |
| 75 | int outer_weak(int a) { return inner_weak_a(a); } |
| 76 | // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] { |
| 77 | // CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}}) |
| 78 | // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] { |
| 79 | |
| 80 | // CHECKBASIC: attributes [[NUW]] = { noinline nounwind{{.*}} } |
| 81 | |
| 82 | // CHECKCC: attributes [[NUW]] = { noinline nounwind{{.*}} } |
| 83 | |
| 84 | void test8_bar() {} |
| 85 | void test8_foo() __attribute__((weak, alias("test8_bar"))); |
| 86 | void test8_zed() __attribute__((alias("test8_foo"))); |
| 87 | |
| 88 | void test9_bar(void) { } |
| 89 | void test9_zed(void) __attribute__((section("test"))); |
| 90 | void test9_zed(void) __attribute__((alias("test9_bar"))); |
| 91 | |