| // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -O0 -fms-extensions -fenable-experimental-ms-inline-asm -w -emit-llvm -o - | FileCheck %s |
| |
| void t1() { |
| // CHECK: @t1 |
| // CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret void |
| __asm {} |
| } |
| |
| void t2() { |
| // CHECK: @t2 |
| // CHECK: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret void |
| __asm nop |
| __asm nop |
| __asm nop |
| } |
| |
| void t3() { |
| // CHECK: @t3 |
| // CHECK: call void asm sideeffect "nop\0Anop\0Anop", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret void |
| __asm nop __asm nop __asm nop |
| } |
| |
| void t4(void) { |
| // CHECK: @t4 |
| // CHECK: call void asm sideeffect "mov ebx, eax", "~{ebx},~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "mov ecx, ebx", "~{ecx},~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret void |
| __asm mov ebx, eax |
| __asm mov ecx, ebx |
| } |
| |
| void t5(void) { |
| // CHECK: @t5 |
| // CHECK: call void asm sideeffect "mov ebx, eax\0Amov ecx, ebx", "~{ebx},~{ecx},~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret void |
| __asm mov ebx, eax __asm mov ecx, ebx |
| } |
| |
| void t6(void) { |
| __asm int 0x2c |
| // CHECK: t6 |
| // CHECK: call void asm sideeffect "int 0x2c", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| } |
| |
| void t7() { |
| __asm { |
| int 0x2c ; } asm comments are fun! }{ |
| } |
| __asm {} |
| // CHECK: t7 |
| // CHECK: call void asm sideeffect "int 0x2c", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| } |
| int t8() { |
| __asm int 3 ; } comments for single-line asm |
| __asm {} |
| __asm int 4 |
| return 10; |
| // CHECK: t8 |
| // CHECK: call void asm sideeffect "int 3", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: call void asm sideeffect "int 4", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| // CHECK: ret i32 10 |
| } |
| void t9() { |
| __asm { |
| push ebx |
| mov ebx, 0x07 |
| pop ebx |
| } |
| // CHECK: t9 |
| // CHECK: call void asm sideeffect "push ebx\0Amov ebx, 0x07\0Apop ebx", "~{ebx},~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect |
| } |
| |
| unsigned t10(void) { |
| unsigned i = 1, j; |
| __asm { |
| mov eax, i |
| mov j, eax |
| } |
| return j; |
| // CHECK: t10 |
| // CHECK: [[I:%[a-zA-Z0-9]+]] = alloca i32, align 4 |
| // CHECK: [[J:%[a-zA-Z0-9]+]] = alloca i32, align 4 |
| // CHECK: store i32 1, i32* [[I]], align 4 |
| // Note: The AsmParser isn't properly matching the second instruction (i.e., j is being marked as an input, when in fact it is an output). |
| // CHECK: call void asm sideeffect "mov eax, i\0Amov j, eax", "r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32 %{{.*}}, i32 %{{.*}}) nounwind ia_nsdialect |
| // CHECK: [[RET:%[a-zA-Z0-9]+]] = load i32* [[J]], align 4 |
| // CHECK: ret i32 [[RET]] |
| } |
| |
| void t11(void) { |
| __asm EVEN |
| __asm ALIGN |
| } |
| |
| void t12(void) { |
| __asm { |
| _emit 0x4A |
| _emit 0x43 |
| _emit 0x4B |
| } |
| } |
| |
| void t13(void) { |
| unsigned arr[10]; |
| __asm LENGTH arr ; sizeof(arr)/sizeof(arr[0]) |
| __asm SIZE arr ; sizeof(arr) |
| __asm TYPE arr ; sizeof(arr[0]) |
| } |