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Remove redundant variable.

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Tested by adding assert(LoopVectorPreHeader == VecPreheader) on LLVM
test suite and SPECs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223847 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Zolotukhin
2014-12-09 22:45:07 +00:00
parent 7d7b761cd0
commit c9f47d8821
1 changed files with 2 additions and 4 deletions
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6
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -2833,9 +2833,6 @@ void InnerLoopVectorizer::vectorizeLoop() {
} }
// Fix the vector-loop phi. // Fix the vector-loop phi.
// We created the induction variable so we know that the
// preheader is the first entry.
BasicBlock *VecPreheader = Induction->getIncomingBlock(0);
// Reductions do not have to start at zero. They can start with // Reductions do not have to start at zero. They can start with
// any loop invariant values. // any loop invariant values.
@ -2847,7 +2844,8 @@ void InnerLoopVectorizer::vectorizeLoop() {
// Make sure to add the reduction stat value only to the // Make sure to add the reduction stat value only to the
// first unroll part. // first unroll part.
Value *StartVal = (part == 0) ? VectorStart : Identity; Value *StartVal = (part == 0) ? VectorStart : Identity;
cast<PHINode>(VecRdxPhi[part])->addIncoming(StartVal, VecPreheader); cast<PHINode>(VecRdxPhi[part])->addIncoming(StartVal,
LoopVectorPreHeader);
cast<PHINode>(VecRdxPhi[part])->addIncoming(Val[part], cast<PHINode>(VecRdxPhi[part])->addIncoming(Val[part],
LoopVectorBody.back()); LoopVectorBody.back());
} }