Add option to force filetype=asm for testing

src/IceTargetLoweringX86Base.h

Index: src/IceTargetLoweringX86Base.h
diff --git a/src/IceTargetLoweringX86Base.h b/src/IceTargetLoweringX86Base.h
index bf430727f1524501dc6d44af1c41687f99a7a189..666f53edd6732bf99eafb3ad31527a3f17ee07e0 100644
--- a/src/IceTargetLoweringX86Base.h
+++ b/src/IceTargetLoweringX86Base.h
@@ -547,8 +547,9 @@ protected:
   void _pblendvb(Variable *Dest, Operand *Src0, Operand *Src1) {
     Context.insert<typename Traits::Insts::Pblendvb>(Dest, Src0, Src1);
   }
-  void _pcmpeq(Variable *Dest, Operand *Src0) {
-    Context.insert<typename Traits::Insts::Pcmpeq>(Dest, Src0);
+  void _pcmpeq(Variable *Dest, Operand *Src0,
+               Type ArithmeticType = IceType_void) {

[Jim Stichnoth, 2015/12/20 18:42:23]

rename parameter to ArithmeticTypeOverride ?

[sehr, 2016/01/07 18:53:12]

Done.

+    Context.insert<typename Traits::Insts::Pcmpeq>(Dest, Src0, ArithmeticType);
   }
   void _pcmpgt(Variable *Dest, Operand *Src0) {
     Context.insert<typename Traits::Insts::Pcmpgt>(Dest, Src0);