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Fix a comment. 

llvm-svn: 64328
This commit is contained in:
Dan Gohman 2009-02-11 21:32:08 +00:00
parent 6571ef3577
commit 45889d24fe
1 changed files with 2 additions and 2 deletions
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4
llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
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@ -1252,8 +1252,8 @@ void RegReductionPriorityQueue<SF>::AddPseudoTwoAddrDeps() {
if (canClobberPhysRegDefs(SuccSU, SU, TII, TRI)) if (canClobberPhysRegDefs(SuccSU, SU, TII, TRI))
continue; continue;
} }
// Don't constraint extract_subreg / insert_subreg these may be // Don't constrain extract_subreg / insert_subreg; these may be
// coalesced away. We don't them close to their uses. // coalesced away. We want them close to their uses.
unsigned SuccOpc = SuccSU->getNode()->getMachineOpcode(); unsigned SuccOpc = SuccSU->getNode()->getMachineOpcode();
if (SuccOpc == TargetInstrInfo::EXTRACT_SUBREG || if (SuccOpc == TargetInstrInfo::EXTRACT_SUBREG ||
SuccOpc == TargetInstrInfo::INSERT_SUBREG) SuccOpc == TargetInstrInfo::INSERT_SUBREG)