diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/BranchFolding.cpp | 2 | ||||
| -rw-r--r-- | lib/CodeGen/PostRASchedulerList.cpp | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp index ef1d2baed9..c7f2d64a36 100644 --- a/lib/CodeGen/BranchFolding.cpp +++ b/lib/CodeGen/BranchFolding.cpp @@ -188,7 +188,7 @@ bool BranchFolder::OptimizeFunction(MachineFunction &MF, // Use a RegScavenger to help update liveness when required. MachineRegisterInfo &MRI = MF.getRegInfo(); - if (MRI.tracksLiveness() && TRI->requiresRegisterScavenging(MF)) + if (MRI.tracksLiveness() && TRI->trackLivenessAfterRegAlloc(MF)) RS = new RegScavenger(); else MRI.invalidateLiveness(); diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp index 24d3e5ab0c..13feaec7d8 100644 --- a/lib/CodeGen/PostRASchedulerList.cpp +++ b/lib/CodeGen/PostRASchedulerList.cpp @@ -206,6 +206,10 @@ SchedulePostRATDList::SchedulePostRATDList( const InstrItineraryData *InstrItins = TM.getInstrItineraryData(); HazardRec = TM.getInstrInfo()->CreateTargetPostRAHazardRecognizer(InstrItins, this); + + assert((AntiDepMode == TargetSubtargetInfo::ANTIDEP_NONE || + MRI.tracksLiveness()) && + "Live-ins must be accurate for anti-dependency breaking"); AntiDepBreak = ((AntiDepMode == TargetSubtargetInfo::ANTIDEP_ALL) ? (AntiDepBreaker *)new AggressiveAntiDepBreaker(MF, RCI, CriticalPathRCs) : |