[llvm-commits] [llvm] r64916 - /llvm/trunk/include/llvm/Analysis/LoopInfo.h

[Dan Gohman]

Author: djg
Date: Wed Feb 18 10:43:19 2009
New Revision: 64916

URL: http://llvm.org/viewvc/llvm-project?rev=64916&view=rev
Log:
Clarify the definition of "latch block" in a comment.

Modified:
    llvm/trunk/include/llvm/Analysis/LoopInfo.h

Modified: llvm/trunk/include/llvm/Analysis/LoopInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/LoopInfo.h?rev=64916&r1=64915&r2=64916&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Analysis/LoopInfo.h (original)
+++ llvm/trunk/include/llvm/Analysis/LoopInfo.h Wed Feb 18 10:43:19 2009
@@ -307,10 +307,10 @@
     return Out;
   }
 
-  /// getLoopLatch - If there is a latch block for this loop, return it.  A
-  /// latch block is the canonical backedge for a loop.  A loop header in normal
-  /// form has two edges into it: one from a preheader and one from a latch
-  /// block.
+  /// getLoopLatch - If there is a single latch block for this loop, return it.
+  /// A latch block is a block that contains a branch back to the header.
+  /// A loop header in normal form has two edges into it: one from a preheader
+  /// and one from a latch block.
   BlockT *getLoopLatch() const {
     BlockT *Header = getHeader();
     typedef GraphTraits<Inverse<BlockT*> > InvBlockTraits;