diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMBaseInstrInfo.h')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMBaseInstrInfo.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMBaseInstrInfo.h b/llvm/lib/Target/ARM/ARMBaseInstrInfo.h index 20fae2e54ee..4f1c4539243 100644 --- a/llvm/lib/Target/ARM/ARMBaseInstrInfo.h +++ b/llvm/lib/Target/ARM/ARMBaseInstrInfo.h @@ -336,6 +336,17 @@ public: unsigned NumInstrs) const { return NumInstrs && NumInstrs == 1; } + + /// isCompareInstr - If the machine instruction is a comparison instruction, + /// then return true. Also return the source register in SrcReg and the value + /// it compares against in CmpValue. + virtual bool isCompareInstr(const MachineInstr *MI, unsigned &SrcReg, + int &CmpValue) const; + + /// convertToSetZeroFlag - Convert the instruction to set the zero flag so + /// that we can remove a "comparison with zero". + virtual bool convertToSetZeroFlag(MachineInstr *Instr, + MachineInstr *CmpInstr) const; }; static inline |
