1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/include/llvm/MC/MCSubtargetInfo.h b/llvm/include/llvm/MC/MCSubtargetInfo.h
index 03eea1e8dce..2ad72c3c325 100644
--- a/llvm/include/llvm/MC/MCSubtargetInfo.h
+++ b/llvm/include/llvm/MC/MCSubtargetInfo.h
@@ -152,6 +152,16 @@ public:
     return 0;
   }
 
+  /// Return the set of ReadAdvance entries declared by the scheduling class
+  /// descriptor in input.
+  ArrayRef<MCReadAdvanceEntry>
+  getReadAdvanceEntries(const MCSchedClassDesc &SC) const {
+    if (!SC.NumReadAdvanceEntries)
+      return ArrayRef<MCReadAdvanceEntry>();
+    return ArrayRef<MCReadAdvanceEntry>(&ReadAdvanceTable[SC.ReadAdvanceIdx],
+                                        SC.NumReadAdvanceEntries);
+  }
+
   /// Get scheduling itinerary of a CPU.
   InstrItineraryData getInstrItineraryForCPU(StringRef CPU) const;