commit cfcab21e4d0e4d7444b147898d6aed1348df3043
author Craig Topper <craig.topper@gmail.com> Sat Jan 19 08:27:45 2013 +0000
committer Craig Topper <craig.topper@gmail.com> Sat Jan 19 08:27:45 2013 +0000
tree ca8be758441a157b979904219db492d294b87fdd
parent 90230c84668269fbd53d163e398cd16486d5d414

Use MVT instead of EVT when computing shuffle immediates since they can only be for legal types. Keeps compiler from generating unneeded checks and handling for extended types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172893 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86ISelLowering.cpp

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 73a1d2e..b6b10e2 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -3837,7 +3837,7 @@
 /// getShuffleVPERM2X128Immediate - Return the appropriate immediate to shuffle
 /// the specified VECTOR_MASK mask with VPERM2F128/VPERM2I128 instructions.
 static unsigned getShuffleVPERM2X128Immediate(ShuffleVectorSDNode *SVOp) {
-  EVT VT = SVOp->getValueType(0);
+  MVT VT = SVOp->getValueType(0).getSimpleVT();
 
   unsigned HalfSize = VT.getVectorNumElements()/2;
 
@@ -4040,7 +4040,7 @@
 /// the specified VECTOR_SHUFFLE mask with PSHUF* and SHUFP* instructions.
 /// Handles 128-bit and 256-bit.
 static unsigned getShuffleSHUFImmediate(ShuffleVectorSDNode *N) {
-  EVT VT = N->getValueType(0);
+  MVT VT = N->getValueType(0).getSimpleVT();
 
   assert((VT.is128BitVector() || VT.is256BitVector()) &&
          "Unsupported vector type for PSHUF/SHUFP");
@@ -4070,7 +4070,7 @@
 /// getShufflePSHUFHWImmediate - Return the appropriate immediate to shuffle
 /// the specified VECTOR_SHUFFLE mask with the PSHUFHW instruction.
 static unsigned getShufflePSHUFHWImmediate(ShuffleVectorSDNode *N) {
-  EVT VT = N->getValueType(0);
+  MVT VT = N->getValueType(0).getSimpleVT();
 
   assert((VT == MVT::v8i16 || VT == MVT::v16i16) &&
          "Unsupported vector type for PSHUFHW");
@@ -4094,7 +4094,7 @@
 /// getShufflePSHUFLWImmediate - Return the appropriate immediate to shuffle
 /// the specified VECTOR_SHUFFLE mask with the PSHUFLW instruction.
 static unsigned getShufflePSHUFLWImmediate(ShuffleVectorSDNode *N) {
-  EVT VT = N->getValueType(0);
+  MVT VT = N->getValueType(0).getSimpleVT();
 
   assert((VT == MVT::v8i16 || VT == MVT::v16i16) &&
          "Unsupported vector type for PSHUFHW");
@@ -4118,7 +4118,7 @@
 /// getShufflePALIGNRImmediate - Return the appropriate immediate to shuffle
 /// the specified VECTOR_SHUFFLE mask with the PALIGNR instruction.
 static unsigned getShufflePALIGNRImmediate(ShuffleVectorSDNode *SVOp) {
-  EVT VT = SVOp->getValueType(0);
+  MVT VT = SVOp->getValueType(0).getSimpleVT();
   unsigned EltSize = VT.getVectorElementType().getSizeInBits() >> 3;
 
   unsigned NumElts = VT.getVectorNumElements();
@@ -4149,8 +4149,8 @@
   uint64_t Index =
     cast<ConstantSDNode>(N->getOperand(1).getNode())->getZExtValue();
 
-  EVT VecVT = N->getOperand(0).getValueType();
-  EVT ElVT = VecVT.getVectorElementType();
+  MVT VecVT = N->getOperand(0).getValueType().getSimpleVT();
+  MVT ElVT = VecVT.getVectorElementType();
 
   unsigned NumElemsPerChunk = 128 / ElVT.getSizeInBits();
   return Index / NumElemsPerChunk;
@@ -4166,8 +4166,8 @@
   uint64_t Index =
     cast<ConstantSDNode>(N->getOperand(2).getNode())->getZExtValue();
 
-  EVT VecVT = N->getValueType(0);
-  EVT ElVT = VecVT.getVectorElementType();
+  MVT VecVT = N->getValueType(0).getSimpleVT();
+  MVT ElVT = VecVT.getVectorElementType();
 
   unsigned NumElemsPerChunk = 128 / ElVT.getSizeInBits();
   return Index / NumElemsPerChunk;
@@ -4177,7 +4177,7 @@
 /// the specified VECTOR_SHUFFLE mask with VPERMQ and VPERMPD instructions.
 /// Handles 256-bit.
 static unsigned getShuffleCLImmediate(ShuffleVectorSDNode *N) {
-  EVT VT = N->getValueType(0);
+  MVT VT = N->getValueType(0).getSimpleVT();
 
   unsigned NumElts = VT.getVectorNumElements();