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authorDan Gohman <gohman@apple.com>2010-07-20 00:57:18 +0000
committerDan Gohman <gohman@apple.com>2010-07-20 00:57:18 +0000
commitfb272ad614e923bebdf226ff9d3fbce5e2ae1192 (patch)
tree7e8a5fbe32425e7360d052e45caa82e9b6191fcc /lib/Analysis/ScalarEvolutionNormalization.cpp
parentbf1ae5e254f8f6f6f3dfe9438d14bef9b955f01f (diff)
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Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108793 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ScalarEvolutionNormalization.cpp')
-rw-r--r--lib/Analysis/ScalarEvolutionNormalization.cpp9
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/Analysis/ScalarEvolutionNormalization.cpp b/lib/Analysis/ScalarEvolutionNormalization.cpp
index 563fd2f..565b6f3 100644
--- a/lib/Analysis/ScalarEvolutionNormalization.cpp
+++ b/lib/Analysis/ScalarEvolutionNormalization.cpp
@@ -50,13 +50,10 @@ static bool IVUseShouldUsePostIncValue(Instruction *User, Instruction *IV,
// Look at all of the uses of IV by the PHI node. If any use corresponds to
// a block that is not dominated by the latch block, give up and use the
// preincremented value.
- unsigned NumUses = 0;
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i)
- if (PN->getIncomingValue(i) == IV) {
- ++NumUses;
- if (!DT->dominates(LatchBlock, PN->getIncomingBlock(i)))
- return false;
- }
+ if (PN->getIncomingValue(i) == IV &&
+ !DT->dominates(LatchBlock, PN->getIncomingBlock(i)))
+ return false;
// Okay, all uses of IV by PN are in predecessor blocks that really are
// dominated by the latch block. Use the post-incremented value.