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[NaryReassociate] remove redundant code

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This check is already done by findClosestMatchingDominator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243065 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jingyue Wu 2015-07-23 23:13:37 +00:00
parent 832202c797
commit cab4b8c41b
1 changed files with 0 additions and 5 deletions
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5
lib/Transforms/Scalar/NaryReassociate.cpp
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@ -508,11 +508,6 @@ Instruction *NaryReassociate::tryReassociateAdd(Value *LHS, Value *RHS,
Instruction *NaryReassociate::tryReassociatedAdd(const SCEV *LHSExpr, Instruction *NaryReassociate::tryReassociatedAdd(const SCEV *LHSExpr,
Value *RHS, Instruction *I) { Value *RHS, Instruction *I) {
auto Pos = SeenExprs.find(LHSExpr);
// Bail out if LHSExpr is not previously seen.
if (Pos == SeenExprs.end())
return nullptr;
// Look for the closest dominator LHS of I that computes LHSExpr, and replace // Look for the closest dominator LHS of I that computes LHSExpr, and replace
// I with LHS + RHS. // I with LHS + RHS.
auto *LHS = findClosestMatchingDominator(LHSExpr, I); auto *LHS = findClosestMatchingDominator(LHSExpr, I);