diff options
Diffstat (limited to 'include/llvm/CodeGen/LiveIntervalAnalysis.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveIntervalAnalysis.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h index b09f8d111066..8ca58b82c8bb 100644 --- a/include/llvm/CodeGen/LiveIntervalAnalysis.h +++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h @@ -159,7 +159,11 @@ namespace llvm { /// range to just the remaining uses. This method does not compute reaching /// defs for new uses, and it doesn't remove dead defs. /// Dead PHIDef values are marked as unused. - void shrinkToUses(LiveInterval *li); + /// New dead machine instructions are added to the dead vector. + /// Return true if the interval may have been separated into multiple + /// connected components. + bool shrinkToUses(LiveInterval *li, + SmallVectorImpl<MachineInstr*> *dead = 0); // Interval removal @@ -272,7 +276,7 @@ namespace llvm { /// (if any is created) by reference. This is temporary. std::vector<LiveInterval*> addIntervalsForSpills(const LiveInterval& i, - const SmallVectorImpl<LiveInterval*> &SpillIs, + const SmallVectorImpl<LiveInterval*> *SpillIs, const MachineLoopInfo *loopInfo, VirtRegMap& vrm); /// spillPhysRegAroundRegDefsUses - Spill the specified physical register @@ -285,7 +289,7 @@ namespace llvm { /// val# of the specified interval is re-materializable. Also returns true /// by reference if all of the defs are load instructions. bool isReMaterializable(const LiveInterval &li, - const SmallVectorImpl<LiveInterval*> &SpillIs, + const SmallVectorImpl<LiveInterval*> *SpillIs, bool &isLoad); /// isReMaterializable - Returns true if the definition MI of the specified @@ -372,7 +376,7 @@ namespace llvm { /// by reference if the def is a load. bool isReMaterializable(const LiveInterval &li, const VNInfo *ValNo, MachineInstr *MI, - const SmallVectorImpl<LiveInterval*> &SpillIs, + const SmallVectorImpl<LiveInterval*> *SpillIs, bool &isLoad); /// tryFoldMemoryOperand - Attempts to fold either a spill / restore from |