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| 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 | fe57d109b6414d6728825a64857335afcd2bd13e (patch) | |
| tree | f7e19540eceeb59ab92d3e60a2063271f5102aa4 /llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | |
| parent | 348f3fa6a73903c277d783df75d710ccc246e42c (diff) | |
| download | bcm5719-llvm-fe57d109b6414d6728825a64857335afcd2bd13e.tar.gz bcm5719-llvm-fe57d109b6414d6728825a64857335afcd2bd13e.zip | |
Ignore conditions that are outside the loop.
llvm-svn: 58631
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopUnswitch.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp index 65034f5577c..31e875275b8 100644 --- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/llvm/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) { |
