diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/CodeGen/TargetSchedule.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/TargetSchedule.h b/include/llvm/CodeGen/TargetSchedule.h index 6a5359d..3adbe7d 100644 --- a/include/llvm/CodeGen/TargetSchedule.h +++ b/include/llvm/CodeGen/TargetSchedule.h @@ -74,6 +74,14 @@ public: const MachineInstr *UseMI, unsigned UseOperIdx, bool FindMin) const; + /// \brief Compute the instruction latency based on the available machine + /// model. + /// + /// Compute and return the expected latency of this instruction independent of + /// a particular use. computeOperandLatency is the prefered API, but this is + /// occasionally useful to help estimate instruction cost. + unsigned computeInstrLatency(const MachineInstr *MI) const; + /// \brief Identify the processor corresponding to the current subtarget. unsigned getProcessorID() const { return SchedModel.getProcessorID(); } |