diff options
| author | Dan Gohman <gohman@apple.com> | 2009-07-14 01:37:59 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-07-14 01:37:59 +0000 |
| commit | 0df6e09d43d6d733555a10d22572ddb0006e7d23 (patch) | |
| tree | 4f3d6d05529e7ec08a8a52ce1174bda6cad1f98a /lib/Transforms/Scalar/LoopUnswitch.cpp | |
| parent | 6084326c3c39e65f1ce42099296571334d653c88 (diff) | |
Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant
function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75584 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopUnswitch.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopUnswitch.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp index 0a3659c71d..f5061b57ae 100644 --- a/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/lib/Transforms/Scalar/LoopUnswitch.cpp @@ -168,9 +168,14 @@ static Value *FindLIVLoopCondition(Value *Cond, Loop *L, bool &Changed) { if (isa<Constant>(Cond)) return 0; // TODO: Handle: br (VARIANT|INVARIANT). - // TODO: Hoist simple expressions out of loops. if (L->isLoopInvariant(Cond)) return Cond; + // Hoist simple values out. + if (L->makeLoopInvariant(Cond)) { + Changed = true; + return Cond; + } + if (BinaryOperator *BO = dyn_cast<BinaryOperator>(Cond)) if (BO->getOpcode() == Instruction::And || BO->getOpcode() == Instruction::Or) { |