From b317143ba851ce2853fb262fb2185ef5f1be030d Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 18 Feb 2009 16:43:19 +0000 Subject: [PATCH] Clarify the definition of "latch block" in a comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64916 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Analysis/LoopInfo.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/llvm/Analysis/LoopInfo.h b/include/llvm/Analysis/LoopInfo.h index 3961675980e..93bfcad1bc7 100644 --- a/include/llvm/Analysis/LoopInfo.h +++ b/include/llvm/Analysis/LoopInfo.h @@ -307,10 +307,10 @@ public: 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 > InvBlockTraits;