[PATCH] D26985: [X86] Simplify lowerVectorShuffleAsBitMask to handle only integer VT's

[Zvi Rackover via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL287743: [X86] Simplify lowerVectorShuffleAsBitMask to handle only integer VT's (authored by zvi).

Changed prior to commit:
  https://reviews.llvm.org/D26985?vs=78909&id=79027#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D26985

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


Index: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
@@ -7627,16 +7627,11 @@
                                            SDValue V2, ArrayRef<int> Mask,
                                            const SmallBitVector &Zeroable,
                                            SelectionDAG &DAG) {
+  assert(!VT.isFloatingPoint() && "Floating point types are not supported");
   MVT EltVT = VT.getVectorElementType();
-  int NumEltBits = EltVT.getSizeInBits();
-  MVT IntEltVT = MVT::getIntegerVT(NumEltBits);
-  SDValue Zero = DAG.getConstant(0, DL, IntEltVT);
-  SDValue AllOnes = DAG.getConstant(APInt::getAllOnesValue(NumEltBits), DL,
-                                    IntEltVT);
-  if (EltVT.isFloatingPoint()) {
-    Zero = DAG.getBitcast(EltVT, Zero);
-    AllOnes = DAG.getBitcast(EltVT, AllOnes);
-  }
+  SDValue Zero = DAG.getConstant(0, DL, EltVT);
+  SDValue AllOnes =
+      DAG.getConstant(APInt::getAllOnesValue(EltVT.getSizeInBits()), DL, EltVT);
   SmallVector<SDValue, 16> VMaskOps(Mask.size(), Zero);
   SDValue V;
   for (int i = 0, Size = Mask.size(); i < Size; ++i) {
@@ -7655,10 +7650,7 @@
     return SDValue(); // No non-zeroable elements!
 
   SDValue VMask = DAG.getBuildVector(VT, DL, VMaskOps);
-  V = DAG.getNode(VT.isFloatingPoint()
-                  ? (unsigned) X86ISD::FAND : (unsigned) ISD::AND,
-                  DL, VT, V, VMask);
-  return V;
+  return DAG.getNode(ISD::AND, DL, VT, V, VMask);
 }
 
 /// \brief Try to emit a blend instruction for a shuffle using bit math.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D26985.79027.patch
Type: text/x-patch
Size: 1680 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20161123/c58ade2f/attachment.bin>