diff options
Diffstat (limited to 'include/llvm/Target')
-rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index 87e7c14..a589d0e 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -200,6 +200,15 @@ public: unsigned &Size, unsigned &Offset, const TargetMachine *TM) const; + /// isAsCheapAsAMove - Return true if the instruction is as cheap as a move + /// instruction. + /// + /// Targets for different archs need to override this, and different + /// micro-architectures can also be finely tuned inside. + virtual bool isAsCheapAsAMove(const MachineInstr *MI) const { + return MI->isAsCheapAsAMove(); + } + /// reMaterialize - Re-issue the specified 'original' instruction at the /// specific location targeting a new destination register. /// The register in Orig->getOperand(0).getReg() will be substituted by |