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llvm-project/clang/test/CodeGen/ms-inline-asm.c

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[ms-inline asm] Add basic codegen support for simple asm stmts. Currently, only machine specific clobbers are modeled. llvm-svn: 161524
2012-08-09 05:15:52 +08:00
// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -O0 -fms-extensions -fenable-experimental-ms-inline-asm -w -emit-llvm -o - | FileCheck %s
[ms-inline asm] Add a very simple test case. Basically, we're only testing for crashers at the moment (and coincidentally this case was causing a crash). llvm-svn: 161520
2012-08-09 04:37:31 +08:00
void t1() {
// CHECK: @t1
[ms-inline asm] Use the new Inline Asm Non-Standard Dialect attribute. llvm-svn: 161642
2012-08-10 08:00:34 +08:00
// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
[ms-inline asm] Add a very simple test case. Basically, we're only testing for crashers at the moment (and coincidentally this case was causing a crash). llvm-svn: 161520
2012-08-09 04:37:31 +08:00
// CHECK: ret void
__asm {}
}
[ms-inline asm] Have patchMSAsmStrings() return a vector or AsmStrings. The AsmParser expects a single asm instruction, but valid ms-style inline asm statements may contain multiple instructions. This happens with asm blocks __asm { mov ebx, eax mov ecx, ebx } or when multiple asm statements are adjacent to one another __asm mov ebx, eax __asm mov ecx, ebx and __asm mov ebx, eax __asm mov ecx, ebx Currently, asm blocks are not properly handled. llvm-svn: 161780
2012-08-14 04:32:07 +08:00
void t2() {
// CHECK: @t2
// CHECK: call void asm sideeffect "nop\0Anop\0Anop", "~{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\0Amov ecx, ebx", "~{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", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
// CHECK: ret void
__asm mov ebx, eax __asm mov ecx, ebx
}