vendor/llvm/llvm-release_33-r183502

1 files changed, 6 insertions, 3 deletions

diff --git a/include/llvm/CodeGen/MachineTraceMetrics.h b/include/llvm/CodeGen/MachineTraceMetrics.h
index 2775a0485821..9794707e3544 100644
--- a/include/llvm/CodeGen/MachineTraceMetrics.h
+++ b/include/llvm/CodeGen/MachineTraceMetrics.h
@@ -260,9 +260,12 @@ public:
     /// independent, exposing the maximum instruction-level parallelism.
     ///
     /// Any blocks in Extrablocks are included as if they were part of the
-    /// trace.
-    unsigned getResourceLength(ArrayRef<const MachineBasicBlock*> Extrablocks =
-                               ArrayRef<const MachineBasicBlock*>()) const;
+    /// trace. Likewise, extra resources required by the specified scheduling
+    /// classes are included. For the caller to account for extra machine
+    /// instructions, it must first resolve each instruction's scheduling class.
+    unsigned getResourceLength(
+                ArrayRef<const MachineBasicBlock*> Extrablocks = None,
+                ArrayRef<const MCSchedClassDesc*> ExtraInstrs = None) const;
 
     /// Return the length of the (data dependency) critical path through the
     /// trace.