[llvm] r281499 - [X86][SSE] Don't use PSHUFD directly - lower with generic shuffle

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Wed Sep 14 12:04:22 2016
New Revision: 281499

URL: http://llvm.org/viewvc/llvm-project?rev=281499&view=rev
Log:
[X86][SSE] Don't use PSHUFD directly - lower with generic shuffle

Remove the last user of the old getTargetShuffleNode helpers

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=281499&r1=281498&r2=281499&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Wed Sep 14 12:04:22 2016
@@ -3848,21 +3848,6 @@ static bool isTargetShuffleVariableMask(
   }
 }
 
-static SDValue getTargetShuffleNode(unsigned Opc, const SDLoc &dl, MVT VT,
-                                    SDValue V1, unsigned TargetMask,
-                                    SelectionDAG &DAG) {
-  switch(Opc) {
-  default: llvm_unreachable("Unknown x86 shuffle node");
-  case X86ISD::PSHUFD:
-  case X86ISD::PSHUFHW:
-  case X86ISD::PSHUFLW:
-  case X86ISD::VPERMILPI:
-  case X86ISD::VPERMI:
-    return DAG.getNode(Opc, dl, VT, V1,
-                       DAG.getConstant(TargetMask, dl, MVT::i8));
-  }
-}
-
 SDValue X86TargetLowering::getReturnAddressFrameIndex(SelectionDAG &DAG) const {
   MachineFunction &MF = DAG.getMachineFunction();
   const X86RegisterInfo *RegInfo = Subtarget.getRegisterInfo();
@@ -13689,8 +13674,7 @@ SDValue X86TargetLowering::LowerUINT_TO_
     Result = DAG.getNode(X86ISD::FHADD, dl, MVT::v2f64, Sub, Sub);
   } else {
     SDValue S2F = DAG.getBitcast(MVT::v4i32, Sub);
-    SDValue Shuffle = getTargetShuffleNode(X86ISD::PSHUFD, dl, MVT::v4i32,
-                                           S2F, 0x4E, DAG);
+    SDValue Shuffle = DAG.getVectorShuffle(MVT::v4i32, dl, S2F, S2F, {2,3,0,1});
     Result = DAG.getNode(ISD::FADD, dl, MVT::v2f64,
                          DAG.getBitcast(MVT::v2f64, Shuffle), Sub);
   }