diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp index aedc2a13fa..47c533932d 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.cpp +++ b/lib/CodeGen/ScheduleDAGInstrs.cpp @@ -278,7 +278,13 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) { if (DefSU != SU && (Kind != SDep::Output || !MO.isDead() || !DefSU->getInstr()->registerDefIsDead(Reg))) { - DefSU->addPred(SDep(SU, Kind, AOLatency, /*Reg=*/Reg)); + if (Kind == SDep::Anti) + DefSU->addPred(SDep(SU, Kind, 0, /*Reg=*/Reg)); + else { + unsigned AOLat = TII->getOutputLatency(InstrItins, MI, + DefSU->getInstr(), Reg); + DefSU->addPred(SDep(SU, Kind, AOLat, /*Reg=*/Reg)); + } } } for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) { |