From 46a879ebd384fb39cb680e4c3c182fefcdef5778 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 9 Dec 2008 04:47:21 +0000 Subject: [PATCH] Fix a really subtle off-by-one bug that Duncan noticed with valgrind on test/CodeGen/Generic/2007-06-06-CriticalEdgeLandingPad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60739 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopStrengthReduce.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 9b792c1aca9..892b1c5b3be 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -249,7 +249,7 @@ void LoopStrengthReduce::DeleteTriviallyDeadInstructions() { for (unsigned i = 0, e = DeadInsts.size()-1; i < e; ++i) { Instruction *I = DeadInsts[i]; if (!I->use_empty()) DeadInsts[i] = 0; - while (DeadInsts[i+1] == I && i != e) + while (i != e && DeadInsts[i+1] == I) DeadInsts[++i] = 0; }