Remove stale comment. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288572 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Kuperstein 2016-12-03 01:59:13 +00:00
parent f4638220d6
commit ceceabb371

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@ -1086,9 +1086,6 @@ Optional<unsigned> llvm::getLoopEstimatedTripCount(Loop *L) {
// To estimate the number of times the loop body was executed, we want to
// know the number of times the backedge was taken, vs. the number of times
// we exited the loop.
// The branch weights give us almost what we want, since they were adjusted
// from the raw counts to provide a better probability estimate. Remove
// the adjustment by subtracting 1 from both weights.
uint64_t TrueVal, FalseVal;
if (!LatchBR->extractProfMetadata(TrueVal, FalseVal))
return None;