LiveIntervalAnalysis: document removePhysRegDefAt() function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226689 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index d97087036976520a433666430e669a85e9ce0419..098262aa828a5415a29c1cfdef87d881050225a1 100644 (file)
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -393,6 +393,9 @@ namespace llvm {
       return RegUnitRanges[Unit];
     }
 
+    /// Remove value numbers and related live segments starting at position
+    /// @p Pos that are part of any liverange of physical register @p Reg or one
+    /// of its subregisters.
     void removePhysRegDefAt(unsigned Reg, SlotIndex Pos);
 
   private: