diff options
| -rw-r--r-- | include/llvm/Target/MRegisterInfo.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h index 5bd24e181a..7df0c9ff30 100644 --- a/include/llvm/Target/MRegisterInfo.h +++ b/include/llvm/Target/MRegisterInfo.h @@ -242,16 +242,17 @@ public: const TargetRegisterClass *RC) const = 0; - virtual bool canFoldMemoryOperand(MachineInstr* MI, unsigned i) const { + /// foldMemoryOperand - If this target supports it, fold a load or store of + /// the specified stack slot into the specified machine instruction for the + /// specified operand. If this is possible, the target should perform the + /// folding and return true, otherwise it should return false. If it folds + /// the instruction, it is likely that the MachineInstruction the iterator + /// references has been changed. + virtual bool foldMemoryOperand(MachineBasicBlock::iterator &MI, + unsigned OpNum, int FrameIndex) const { return false; } - virtual int foldMemoryOperand(MachineInstr* MI, - unsigned i, - int FrameIndex) const { - return 0; - } - /// getCallFrameSetup/DestroyOpcode - These methods return the opcode of the /// frame setup/destroy instructions if they exist (-1 otherwise). Some /// targets use pseudo instructions in order to abstract away the difference |