diff options
| -rw-r--r-- | include/llvm/Target/MRegisterInfo.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h index 12e28c0dad..9ddb4953f7 100644 --- a/include/llvm/Target/MRegisterInfo.h +++ b/include/llvm/Target/MRegisterInfo.h @@ -250,6 +250,14 @@ public: unsigned DestReg, unsigned SrcReg, const TargetRegisterClass *RC) const = 0; + /// isLoadFromStackSlot - If the specified machine instruction is a direct + /// load from a stack slot, return the virtual or physical register number of + /// the destination along with the FrameIndex of the loaded stack slot. If + /// not, return 0. This predicate must return false if the instruction has + /// any side effects other than loading from the stack slot. + virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const{ + return 0; + } /// foldMemoryOperand - Attempt to fold a load or store of the /// specified stack slot into the specified machine instruction for |