diff options
| author | Devang Patel <dpatel@apple.com> | 2008-11-03 19:38:07 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2008-11-03 19:38:07 +0000 |
| commit | 265ca5dff5ad21add569fadab435f64423861793 (patch) | |
| tree | fee168b1e639ef1de968326450fa30616834529d /lib/Transforms | |
| parent | 06a1242207f3777419d9c87820b42e5768d636fc (diff) | |
Ignore conditions that are outside the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58631 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/LoopUnswitch.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp index 65034f5577..31e875275b 100644 --- a/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/lib/Transforms/Scalar/LoopUnswitch.cpp @@ -167,8 +167,10 @@ static Value *FindLIVLoopCondition(Value *Cond, Loop *L, bool &Changed) { // TODO: Handle: br (VARIANT|INVARIANT). // TODO: Hoist simple expressions out of loops. - if (L->isLoopInvariant(Cond)) return Cond; - + if (Instruction *I = dyn_cast<Instruction>(Cond)) + if (!L->contains(I->getParent())) + return 0; + if (BinaryOperator *BO = dyn_cast<BinaryOperator>(Cond)) if (BO->getOpcode() == Instruction::And || BO->getOpcode() == Instruction::Or) { |