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[NFC] Use variable instead of accessing pair many times 

llvm-svn: 334173
This commit is contained in:
Max Kazantsev 2018-06-07 08:47:19 +00:00
parent e6e1828004
commit b4b2ccea6d
1 changed files with 6 additions and 6 deletions
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12
llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
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@ -784,7 +784,7 @@ void SimplifyIndvar::simplifyUsers(PHINode *CurrIV, IVVisitor *V) {
for (unsigned N = 0; IVOperand; ++N) {
assert(N <= Simplified.size() && "runaway iteration");
Value *NewOper = foldIVUser(UseOper.first, IVOperand);
Value *NewOper = foldIVUser(UseInst, IVOperand);
if (!NewOper)
break; // done folding
IVOperand = dyn_cast<Instruction>(NewOper);
@ -792,12 +792,12 @@ void SimplifyIndvar::simplifyUsers(PHINode *CurrIV, IVVisitor *V) {
if (!IVOperand)
continue;
if (eliminateIVUser(UseOper.first, IVOperand)) {
if (eliminateIVUser(UseInst, IVOperand)) {
pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);
continue;
}
if (BinaryOperator *BO = dyn_cast<BinaryOperator>(UseOper.first)) {
if (BinaryOperator *BO = dyn_cast<BinaryOperator>(UseInst)) {
if ((isa<OverflowingBinaryOperator>(BO) &&
strengthenOverflowingOperation(BO, IVOperand)) ||
(isa<ShlOperator>(BO) && strengthenRightShift(BO, IVOperand))) {
@ -807,13 +807,13 @@ void SimplifyIndvar::simplifyUsers(PHINode *CurrIV, IVVisitor *V) {
}
}
CastInst *Cast = dyn_cast<CastInst>(UseOper.first);
CastInst *Cast = dyn_cast<CastInst>(UseInst);
if (V && Cast) {
V->visitCast(Cast);
continue;
}
if (isSimpleIVUser(UseOper.first, L, SE)) {
pushIVUsers(UseOper.first, L, Simplified, SimpleIVUsers);
if (isSimpleIVUser(UseInst, L, SE)) {
pushIVUsers(UseInst, L, Simplified, SimpleIVUsers);
}
}
}