[llvm] r321534 - [X86] Emit ISD::TRUNCATE instead of X86ISD::VTRUNC from LowerZERO_EXTEND_Mask/LowerSIGN_EXTEND_Mask.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Thu Dec 28 11:45:58 2017
New Revision: 321534

URL: http://llvm.org/viewvc/llvm-project?rev=321534&view=rev
Log:
[X86] Emit ISD::TRUNCATE instead of X86ISD::VTRUNC from LowerZERO_EXTEND_Mask/LowerSIGN_EXTEND_Mask.

The truncate will be lowered X86ISD::VTRUNC later.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=321534&r1=321533&r2=321534&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Thu Dec 28 11:45:58 2017
@@ -16281,7 +16281,7 @@ static  SDValue LowerZERO_EXTEND_Mask(SD
   // Truncate if we had to extend i16/i8 above.
   if (VT != ExtVT) {
     WideVT = MVT::getVectorVT(VT.getVectorElementType(), NumElts);
-    SelectedVal = DAG.getNode(X86ISD::VTRUNC, DL, WideVT, SelectedVal);
+    SelectedVal = DAG.getNode(ISD::TRUNCATE, DL, WideVT, SelectedVal);
   }
 
   // Extract back to 128/256-bit if we widened.
@@ -18426,7 +18426,7 @@ static SDValue LowerSIGN_EXTEND_Mask(SDV
   // Truncate if we had to extend i16/i8 above.
   if (VT != ExtVT) {
     WideVT = MVT::getVectorVT(VTElt, NumElts);
-    V = DAG.getNode(X86ISD::VTRUNC, dl, WideVT, V);
+    V = DAG.getNode(ISD::TRUNCATE, dl, WideVT, V);
   }
 
   // Extract back to 128/256-bit if we widened.