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| author | Dan Gohman <gohman@apple.com> | 2009-07-15 01:25:43 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-07-15 01:25:43 +0000 |
| commit | c43e47938aaf3890f8f62201ff65897e85239d53 (patch) | |
| tree | e027487c3e7253f89a1ee7c8aae7465f46c63201 /llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | |
| parent | 7f318128d0367f4e7c38b10f33ae5ef5127aeac4 (diff) | |
| download | bcm5719-llvm-c43e47938aaf3890f8f62201ff65897e85239d53.tar.gz bcm5719-llvm-c43e47938aaf3890f8f62201ff65897e85239d53.zip | |
Make makeLoopInvariant report whether it made any changes or not,
and use this to simplify more code.
llvm-svn: 75722
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopUnswitch.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp index f5061b57ae4..daf1841a91c 100644 --- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp @@ -168,13 +168,10 @@ static Value *FindLIVLoopCondition(Value *Cond, Loop *L, bool &Changed) { if (isa<Constant>(Cond)) return 0; // TODO: Handle: br (VARIANT|INVARIANT). - if (L->isLoopInvariant(Cond)) return Cond; // Hoist simple values out. - if (L->makeLoopInvariant(Cond)) { - Changed = true; + if (L->makeLoopInvariant(Cond, Changed)) return Cond; - } if (BinaryOperator *BO = dyn_cast<BinaryOperator>(Cond)) if (BO->getOpcode() == Instruction::And || |
