diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index 90608f16ac..58d812b6b4 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -327,6 +327,14 @@ public: /// used by the tail merging pass. virtual void ReplaceTailWithBranchTo(MachineBasicBlock::iterator Tail, MachineBasicBlock *NewDest) const = 0; + + /// isLegalToSplitMBBAt - Return true if it's legal to split the given basic + /// block at the specified instruction (i.e. instruction would be the start + /// of a new basic block). + virtual bool isLegalToSplitMBBAt(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MBBI) const { + return true; + } /// copyRegToReg - Emit instructions to copy between a pair of registers. It /// returns false if the target does not how to copy between the specified |