[llvm] r340930 - [InstCombine] move declarations closer to uses; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 29 07:42:12 PDT 2018
Author: spatel
Date: Wed Aug 29 07:42:12 2018
New Revision: 340930
URL: http://llvm.org/viewvc/llvm-project?rev=340930&view=rev
Log:
[InstCombine] move declarations closer to uses; NFC
Modified:
llvm/trunk/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineVectorOps.cpp?rev=340930&r1=340929&r2=340930&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineVectorOps.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineVectorOps.cpp Wed Aug 29 07:42:12 2018
@@ -1353,9 +1353,6 @@ static Instruction *foldSelectShuffle(Sh
Instruction *InstCombiner::visitShuffleVectorInst(ShuffleVectorInst &SVI) {
Value *LHS = SVI.getOperand(0);
Value *RHS = SVI.getOperand(1);
- SmallVector<int, 16> Mask = SVI.getShuffleMask();
- Type *Int32Ty = Type::getInt32Ty(SVI.getContext());
-
if (auto *V = SimplifyShuffleVectorInst(
LHS, RHS, SVI.getMask(), SVI.getType(), SQ.getWithInstruction(&SVI)))
return replaceInstUsesWith(SVI, V);
@@ -1363,9 +1360,7 @@ Instruction *InstCombiner::visitShuffleV
if (Instruction *I = foldSelectShuffle(SVI, Builder, DL))
return I;
- bool MadeChange = false;
unsigned VWidth = SVI.getType()->getVectorNumElements();
-
APInt UndefElts(VWidth, 0);
APInt AllOnesEltMask(APInt::getAllOnesValue(VWidth));
if (Value *V = SimplifyDemandedVectorElts(&SVI, AllOnesEltMask, UndefElts)) {
@@ -1374,7 +1369,10 @@ Instruction *InstCombiner::visitShuffleV
return &SVI;
}
+ SmallVector<int, 16> Mask = SVI.getShuffleMask();
+ Type *Int32Ty = Type::getInt32Ty(SVI.getContext());
unsigned LHSWidth = LHS->getType()->getVectorNumElements();
+ bool MadeChange = false;
// Canonicalize shuffle(x ,x,mask) -> shuffle(x, undef,mask')
// Canonicalize shuffle(undef,x,mask) -> shuffle(x, undef,mask').
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