| 1 | // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| 2 | |
| 3 | // CHECK: @foo |
| 4 | |
| 5 | // Make sure we mangle overloadable, even in C system headers. |
| 6 | # 1 "somesystemheader.h" 1 3 4 |
| 7 | // CHECK: @_Z2f0i |
| 8 | void __attribute__((__overloadable__)) f0(int a) {} |
| 9 | // CHECK: @_Z2f0l |
| 10 | void __attribute__((__overloadable__)) f0(long b) {} |
| 11 | |
| 12 | // Unless it's unmarked. |
| 13 | // CHECK: @f0 |
| 14 | void f0(float b) {} |
| 15 | |
| 16 | // CHECK: @bar |
| 17 | |
| 18 | // These should get merged. |
| 19 | void foo() __asm__("bar"); |
| 20 | void foo2() __asm__("bar"); |
| 21 | |
| 22 | int nux __asm__("foo"); |
| 23 | extern float nux2 __asm__("foo"); |
| 24 | |
| 25 | int test() { |
| 26 | foo(); |
| 27 | foo2(); |
| 28 | |
| 29 | return nux + nux2; |
| 30 | } |
| 31 | |
| 32 | |
| 33 | // Function becomes a variable. |
| 34 | void foo3() __asm__("var"); |
| 35 | |
| 36 | void test2() { |
| 37 | foo3(); |
| 38 | } |
| 39 | int foo4 __asm__("var") = 4; |
| 40 | |
| 41 | |
| 42 | // Variable becomes a function |
| 43 | extern int foo5 __asm__("var2"); |
| 44 | |
| 45 | void test3() { |
| 46 | foo5 = 1; |
| 47 | } |
| 48 | |
| 49 | void foo6() __asm__("var2"); |
| 50 | void foo6() { |
| 51 | } |
| 52 | |
| 53 | |
| 54 | |
| 55 | int foo7 __asm__("foo7") __attribute__((used)); |
| 56 | float foo8 __asm__("foo7") = 42; |
| 57 | |
| 58 | // PR4412 |
| 59 | int func(void); |
| 60 | extern int func (void) __asm__ ("FUNC"); |
| 61 | |
| 62 | // CHECK: @FUNC |
| 63 | int func(void) { |
| 64 | return 42; |
| 65 | } |
| 66 | |
| 67 | // CHECK: @_Z4foo9Dv4_f |
| 68 | typedef __attribute__(( vector_size(16) )) float float4; |
| 69 | void __attribute__((__overloadable__)) foo9(float4 f) {} |
| 70 | |
| 71 | // Intrinsic calls. |
| 72 | extern int llvm_cas(volatile int*, int, int) |
| 73 | __asm__("llvm.atomic.cmp.swap.i32.p0i32"); |
| 74 | |
| 75 | int foo10(volatile int* add, int from, int to) { |
| 76 | // CHECK: call i32 @llvm.atomic.cmp.swap.i32.p0i32 |
| 77 | return llvm_cas(add, from, to); |
| 78 | } |
| 79 | |