diff options
Diffstat (limited to 'include/llvm/Target/TargetSubtargetInfo.h')
-rw-r--r-- | include/llvm/Target/TargetSubtargetInfo.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetSubtargetInfo.h b/include/llvm/Target/TargetSubtargetInfo.h index bc357ac529..8fcefcbfa7 100644 --- a/include/llvm/Target/TargetSubtargetInfo.h +++ b/include/llvm/Target/TargetSubtargetInfo.h @@ -53,6 +53,15 @@ public: SchedModel.init(*getSchedModel(), this, TII); } + /// Resolve a SchedClass at runtime, where SchedClass identifies an + /// MCSchedClassDesc with the isVariant property. This may return the ID of + /// another variant SchedClass, but repeated invocation must quickly terminate + /// in a nonvariant SchedClass. + virtual unsigned resolveSchedClass(unsigned SchedClass, const MachineInstr *MI, + const TargetSchedModel* SchedModel) const { + return 0; + } + /// getSpecialAddressLatency - For targets where it is beneficial to /// backschedule instructions that compute addresses, return a value /// indicating the number of scheduling cycles of backscheduling that |