diff options
Diffstat (limited to 'include/llvm/Target/TargetInstrInfo.h')
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index fc7b51ec6c2c..418f3fe062f2 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -477,7 +477,7 @@ public: } /// shouldScheduleLoadsNear - This is a used by the pre-regalloc scheduler to - /// determine (in conjuction with areLoadsFromSameBasePtr) if two loads should + /// determine (in conjunction with areLoadsFromSameBasePtr) if two loads should /// be scheduled togther. On some targets if two loads are loading from /// addresses in the same cache line, it's better if they are scheduled /// together. This function takes two integers that represent the load offsets @@ -641,6 +641,10 @@ public: virtual int getInstrLatency(const InstrItineraryData *ItinData, SDNode *Node) const; + /// isHighLatencyDef - Return true if this opcode has high latency to its + /// result. + virtual bool isHighLatencyDef(int opc) const { return false; } + /// hasHighOperandLatency - Compute operand latency between a def of 'Reg' /// and an use in the current loop, return true if the target considered /// it 'high'. This is used by optimization passes such as machine LICM to |