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[LoopPeel] Some small comment update. NFC.

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Follow-up change of comment after
https://reviews.llvm.org/D63917 is landed.

llvm-svn: 365107
This commit is contained in:
Serguei Katkov 2019-07-04 05:10:14 +00:00
parent 852d642125
commit 8903e651cf
1 changed files with 3 additions and 3 deletions
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6
lib/Transforms/Utils/LoopUnrollPeel.cpp
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@ -386,8 +386,8 @@ static void updateBranchWeights(BasicBlock *Header, BranchInst *LatchBR,
/// \param Header The header block.
/// \param LatchBR The latch branch.
/// \param AvgIters The average number of iterations we expect the loop to have.
/// \param[out] ExitWeight The weight of the edge from Latch to Exit block.
/// \param[out] CurHeaderWeight The # of time the header is executed.
/// \param[out] ExitWeight The # of times the edge from Latch to Exit is taken.
/// \param[out] CurHeaderWeight The # of times the header is executed.
static void initBranchWeights(BasicBlock *Header, BranchInst *LatchBR,
unsigned AvgIters, uint64_t &ExitWeight,
uint64_t &CurHeaderWeight) {
@ -397,7 +397,7 @@ static void initBranchWeights(BasicBlock *Header, BranchInst *LatchBR,
unsigned HeaderIdx = LatchBR->getSuccessor(0) == Header ? 0 : 1;
ExitWeight = HeaderIdx ? TrueWeight : FalseWeight;
// The # of times the loop body executes is the sum of the exit block
// weight and the # of times the backedges are taken.
// is taken and the # of times the backedges are taken.
CurHeaderWeight = TrueWeight + FalseWeight;
}