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Fix a really subtle off-by-one bug that Duncan noticed with valgrind
author
Chris Lattner
<sabre@nondot.org>
Tue, 9 Dec 2008 04:47:21 +0000
(
04:47
+0000)
committer
Chris Lattner
<sabre@nondot.org>
Tue, 9 Dec 2008 04:47:21 +0000
(
04:47
+0000)
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
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diff --git
a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 9b792c1aca9cc925c51e96ddeca2a2414ec3eb67..892b1c5b3be2981452cf41885b180d364402a99b 100644
(file)
--- 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;
}