diff options
author | Dan Gohman <gohman@apple.com> | 2010-07-20 00:57:18 +0000 |
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committer | Dan Gohman <gohman@apple.com> | 2010-07-20 00:57:18 +0000 |
commit | fb272ad614e923bebdf226ff9d3fbce5e2ae1192 (patch) | |
tree | 7e8a5fbe32425e7360d052e45caa82e9b6191fcc /lib/Analysis/ScalarEvolutionNormalization.cpp | |
parent | bf1ae5e254f8f6f6f3dfe9438d14bef9b955f01f (diff) |
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.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/Analysis/ScalarEvolutionNormalization.cpp b/lib/Analysis/ScalarEvolutionNormalization.cpp index 563fd2fa96..565b6f3507 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. |