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[LoopPred] Rename a variable to simply a future patch [NFC] 

llvm-svn: 357433
This commit is contained in:
Philip Reames 2019-04-01 22:39:54 +00:00
parent e44c20a68d
commit f608678f1f
1 changed files with 8 additions and 8 deletions
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16
llvm/lib/Transforms/Scalar/LoopPredication.cpp
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@ -654,17 +654,17 @@ bool LoopPredication::widenGuardConditions(IntrinsicInst *Guard,
}
bool LoopPredication::widenWidenableBranchGuardConditions(
BranchInst *Guard, SCEVExpander &Expander) {
assert(isGuardAsWidenableBranch(Guard) && "Must be!");
BranchInst *BI, SCEVExpander &Expander) {
assert(isGuardAsWidenableBranch(BI) && "Must be!");
LLVM_DEBUG(dbgs() << "Processing guard:\n");
LLVM_DEBUG(Guard->dump());
LLVM_DEBUG(BI->dump());
TotalConsidered++;
SmallVector<Value *, 4> Checks;
IRBuilder<> Builder(cast<Instruction>(Preheader->getTerminator()));
Value *Condition = nullptr, *WidenableCondition = nullptr;
BasicBlock *GBB = nullptr, *DBB = nullptr;
parseWidenableBranch(Guard, Condition, WidenableCondition, GBB, DBB);
parseWidenableBranch(BI, Condition, WidenableCondition, GBB, DBB);
unsigned NumWidened = collectChecks(Checks, Condition, Expander, Builder);
if (NumWidened == 0)
return false;
@ -672,7 +672,7 @@ bool LoopPredication::widenWidenableBranchGuardConditions(
TotalWidened += NumWidened;
// Emit the new guard condition
Builder.SetInsertPoint(Guard);
Builder.SetInsertPoint(BI);
Value *LastCheck = nullptr;
for (auto *Check : Checks)
if (!LastCheck)
@ -682,9 +682,9 @@ bool LoopPredication::widenWidenableBranchGuardConditions(
// Make sure that the check contains widenable condition and therefore can be
// further widened.
LastCheck = Builder.CreateAnd(LastCheck, WidenableCondition);
auto *OldCond = Guard->getOperand(0);
Guard->setOperand(0, LastCheck);
assert(isGuardAsWidenableBranch(Guard) &&
auto *OldCond = BI->getOperand(0);
BI->setOperand(0, LastCheck);
assert(isGuardAsWidenableBranch(BI) &&
"Stopped being a guard after transform?");
RecursivelyDeleteTriviallyDeadInstructions(OldCond);