[llvm-commits] [llvm] r82859 - /llvm/trunk/include/llvm/Analysis/LoopInfo.h

[Dan Gohman]

Author: djg
Date: Sat Sep 26 10:09:53 2009
New Revision: 82859

URL: http://llvm.org/viewvc/llvm-project?rev=82859&view=rev
Log:
Add a comment describing natural loops.

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=82859&r1=82858&r2=82859&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Analysis/LoopInfo.h (original)
+++ llvm/trunk/include/llvm/Analysis/LoopInfo.h Sat Sep 26 10:09:53 2009
@@ -8,7 +8,8 @@
 //===----------------------------------------------------------------------===//
 //
 // This file defines the LoopInfo class that is used to identify natural loops
-// and determine the loop depth of various nodes of the CFG.  Note that natural
+// and determine the loop depth of various nodes of the CFG.  A natural loop
+// has exactly one entry-point, which is called the header. Note that natural
 // loops may actually be several loops that share the same header node.
 //
 // This analysis calculates the nesting structure of loops in a function.  For