1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index a8198e4ae7..b3501a31c8 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -1014,6 +1014,9 @@ public:
   }
   virtual bool validateAsmConstraint(const char *&Name,
                                      TargetInfo::ConstraintInfo &info) const;
+  virtual const llvm::Type* adjustInlineAsmType(std::string& Constraint,
+                                     const llvm::Type* Ty,
+                                     llvm::LLVMContext& Context) const;
   virtual std::string convertConstraint(const char Constraint) const;
   virtual const char *getClobbers() const {
     return "~{dirflag},~{fpsr},~{flags}";
@@ -1338,6 +1341,15 @@ X86TargetInfo::validateAsmConstraint(const char *&Name,
   return false;
 }
 
+const llvm::Type*
+X86TargetInfo::adjustInlineAsmType(std::string& Constraint,
+                                   const llvm::Type* Ty,
+                                   llvm::LLVMContext &Context) const {
+  if (Constraint=="y" && Ty->isVectorTy())
+    return llvm::Type::getX86_MMXTy(Context);
+  return Ty;
+}
+
 
 std::string
 X86TargetInfo::convertConstraint(const char Constraint) const {