[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.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161780 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 32 insertions, 0 deletions

diff --git a/test/CodeGen/ms-inline-asm.c b/test/CodeGen/ms-inline-asm.c
index 67bef9c75f..8c3e5f7c56 100644
--- a/test/CodeGen/ms-inline-asm.c
+++ b/test/CodeGen/ms-inline-asm.c
@@ -6,3 +6,35 @@ void t1() {
 // CHECK: ret void
   __asm {}
 }
+
+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
+}
+