fix comment

There's no 'B3' in the example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190167 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2013-09-06 16:44:25 +00:00
parent 256cb9eaaf
commit c725865bbc

View File

@ -577,7 +577,7 @@ bool RegisterCoalescer::removeCopyByCommutingDef(const CoalescerPair &CP,
LiveInterval &IntB =
LIS->getInterval(CP.isFlipped() ? CP.getSrcReg() : CP.getDstReg());
// BValNo is a value number in B that is defined by a copy from A. 'B3' in
// BValNo is a value number in B that is defined by a copy from A. 'B1' in
// the example above.
VNInfo *BValNo = IntB.getVNInfoAt(CopyIdx);
if (!BValNo || BValNo->def != CopyIdx)