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-rw-r--r--lib/CodeGen/CGStmt.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 33776b6c59..2e4c557db6 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -1686,4 +1686,19 @@ void CodeGenFunction::EmitMSAsmStmt(const MSAsmStmt &S) {
// MS-style inline assembly is not fully supported, so sema emits a warning.
if (!CGM.getCodeGenOpts().EmitMicrosoftInlineAsm)
return;
+
+ assert (S.isSimple() && "CodeGen can only handle simple MSAsmStmts.");
+
+ std::vector<llvm::Value*> Args;
+ std::vector<llvm::Type *> ArgTypes;
+
+ std::string MachineClobbers = Target.getClobbers();
+
+ llvm::FunctionType *FTy =
+ llvm::FunctionType::get(VoidTy, ArgTypes, false);
+
+ llvm::InlineAsm *IA =
+ llvm::InlineAsm::get(FTy, *S.getAsmString(), MachineClobbers, true);
+ llvm::CallInst *Result = Builder.CreateCall(IA, Args);
+ Result->addAttribute(~0, llvm::Attribute::NoUnwind);
}