[ms-inline asm] Remove the Inline Asm Non-Standard Dialect attribute. This

implementation does not co-exist well with how the sideeffect and alignstack
attributes are handled.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163173 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 16 insertions, 20 deletions

diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index f6d9d2dbd6..0d1d671413 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -1619,10 +1619,6 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
   llvm::CallInst *Result = Builder.CreateCall(IA, Args);
   Result->addAttribute(~0, llvm::Attribute::NoUnwind);
 
-  // Add the inline asm non-standard dialect attribute on MS-style inline asms.
-  if (isa<MSAsmStmt>(&S))
-    Result->addAttribute(~0, llvm::Attribute::IANSDialect);
-
   // Slap the source location of the inline asm into a !srcloc metadata on the
   // call.  FIXME: Handle metadata for MS-style inline asms.
   if (const GCCAsmStmt *gccAsmStmt = dyn_cast<GCCAsmStmt>(&S))
diff --git a/test/CodeGen/ms-inline-asm.c b/test/CodeGen/ms-inline-asm.c
index 9c902cd198..16ce45ac8a 100644
--- a/test/CodeGen/ms-inline-asm.c
+++ b/test/CodeGen/ms-inline-asm.c
@@ -2,16 +2,16 @@
 
 void t1() {
 // CHECK: @t1
-// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
+// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind
 // 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: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() nounwind
 // CHECK: ret void
   __asm nop
   __asm nop
@@ -20,15 +20,15 @@ void t2() {
 
 void t3() {
 // CHECK: @t3
-// CHECK: call void asm sideeffect "nop\0Anop\0Anop", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
+// CHECK: call void asm sideeffect "nop\0Anop\0Anop", "~{dirflag},~{fpsr},~{flags}"() nounwind
 // 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: call void asm sideeffect "mov ebx, eax", "~{ebx},~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "mov ecx, ebx", "~{ecx},~{dirflag},~{fpsr},~{flags}"() nounwind
 // CHECK: ret void
   __asm mov ebx, eax
   __asm mov ecx, ebx
@@ -36,7 +36,7 @@ void t4(void) {
 
 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: call void asm sideeffect "mov ebx, eax\0Amov ecx, ebx", "~{ebx},~{ecx},~{dirflag},~{fpsr},~{flags}"() nounwind
 // CHECK: ret void
   __asm mov ebx, eax __asm mov ecx, ebx
 }
@@ -44,7 +44,7 @@ void t5(void) {
 void t6(void) {
   __asm int 0x2c
 // CHECK: t6
-// CHECK: call void asm sideeffect "int 0x2c", "~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
+// CHECK: call void asm sideeffect "int 0x2c", "~{dirflag},~{fpsr},~{flags}"() nounwind
 }
 
 void t7() {
@@ -53,8 +53,8 @@ void t7() {
   }
   __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
+// CHECK: call void asm sideeffect "int 0x2c", "~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind
 }
 int t8() {
   __asm int 3 ; } comments for single-line asm
@@ -62,9 +62,9 @@ int t8() {
   __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: call void asm sideeffect "int 3", "~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind
+// CHECK: call void asm sideeffect "int 4", "~{dirflag},~{fpsr},~{flags}"() nounwind
 // CHECK: ret i32 10
 }
 void t9() {
@@ -74,7 +74,7 @@ void t9() {
     pop ebx
   }
 // CHECK: t9
-// CHECK: call void asm sideeffect "push ebx\0Amov ebx, 0x07\0Apop ebx", "~{ebx},~{dirflag},~{fpsr},~{flags}"() nounwind ia_nsdialect
+// CHECK: call void asm sideeffect "push ebx\0Amov ebx, 0x07\0Apop ebx", "~{ebx},~{dirflag},~{fpsr},~{flags}"() nounwind
 }
 
 unsigned t10(void) {
@@ -88,7 +88,7 @@ unsigned t10(void) {
 // 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
-// CHECK: call i32 asm sideeffect "mov eax, i\0Amov j, eax", "=r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32 %{{.*}}) nounwind ia_nsdialect
+// CHECK: call i32 asm sideeffect "mov eax, i\0Amov j, eax", "=r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32 %{{.*}}) nounwind
 // CHECK: [[RET:%[a-zA-Z0-9]+]] = load i32* [[J]], align 4
 // CHECK: ret i32 [[RET]]
 }