diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.h')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.h b/lib/CodeGen/SimpleRegisterCoalescing.h index 1120fb3..32a44da 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.h +++ b/lib/CodeGen/SimpleRegisterCoalescing.h @@ -80,6 +80,7 @@ namespace llvm { class SimpleRegisterCoalescing : public MachineFunctionPass, public RegisterCoalescer { MachineFunction* mf_; + const MachineRegisterInfo* mri_; const TargetMachine* tm_; const TargetRegisterInfo* tri_; const TargetInstrInfo* tii_; @@ -114,6 +115,9 @@ namespace llvm { /// SmallPtrSet<MachineInstr*, 32> JoinedCopies; + /// ChangedCopies - Keep track of copies modified due to commuting. + SmallPtrSet<MachineInstr*, 32> ChangedCopies; + public: static char ID; // Pass identifcation, replacement for typeid SimpleRegisterCoalescing() : MachineFunctionPass((intptr_t)&ID) {} @@ -168,7 +172,7 @@ namespace llvm { /// if the copy was successfully coalesced away. If it is not currently /// possible to coalesce this interval, but it may be possible if other /// things get coalesced, then it returns true by reference in 'Again'. - bool JoinCopy(CopyRec TheCopy, bool &Again); + bool JoinCopy(CopyRec &TheCopy, bool &Again); /// JoinIntervals - Attempt to join these two intervals. On failure, this /// returns false. Otherwise, if one of the intervals being joined is a @@ -192,6 +196,9 @@ namespace llvm { bool AdjustCopiesBackFrom(LiveInterval &IntA, LiveInterval &IntB, MachineInstr *CopyMI); + bool RemoveCopyByCommutingDef(LiveInterval &IntA, LiveInterval &IntB, + MachineInstr *CopyMI); + /// AddSubRegIdxPairs - Recursively mark all the registers represented by the /// specified register as sub-registers. The recursion level is expected to be /// shallow. |