[AIX] Use AsmParser to do inline asm parsing

Add a flag so that target can choose to use AsmParser for parsing inline asm.
And set the flag by default for AIX.

-no-intergrated-as will override this default if specified explicitly.

Reviewed By: #powerpc, shchenz

Differential Revision: https://reviews.llvm.org/D105314

1 files changed, 5 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
index f9b7bf613ff6..37c0b44ea2b2 100644
--- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
@@ -64,8 +64,12 @@ void LLVMTargetMachine::initAsmInfo() {
   if (Options.BinutilsVersion.first > 0)
     TmpAsmInfo->setBinutilsVersion(Options.BinutilsVersion);
 
-  if (Options.DisableIntegratedAS)
+  if (Options.DisableIntegratedAS) {
     TmpAsmInfo->setUseIntegratedAssembler(false);
+    // If there is explict option disable integratedAS, we can't use it for
+    // inlineasm either.
+    TmpAsmInfo->setParseInlineAsmUsingAsmParser(false);
+  }
 
   TmpAsmInfo->setPreserveAsmComments(Options.MCOptions.PreserveAsmComments);