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| author | Dan Gohman <gohman@apple.com> | 2009-12-09 22:55:01 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-12-09 22:55:01 +0000 |
| commit | 72c367fb529bf6165b0972a3923f85a24fe14b6c (patch) | |
| tree | 5b9b167a0e85c0e70ced67ade3b725479150535e /llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | |
| parent | 2262909b2012efb34b9c4ebe3b37cb35d4ac799c (diff) | |
| download | bcm5719-llvm-72c367fb529bf6165b0972a3923f85a24fe14b6c.tar.gz bcm5719-llvm-72c367fb529bf6165b0972a3923f85a24fe14b6c.zip | |
Dereference loopHeader after checking for null rather than before.
llvm-svn: 90990
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopUnswitch.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp index 38d267aa6b8..b7adfdc68e4 100644 --- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp @@ -404,12 +404,13 @@ bool LoopUnswitch::IsTrivialUnswitchCondition(Value *Cond, Constant **Val, bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){ initLoopData(); - Function *F = loopHeader->getParent(); // If LoopSimplify was unable to form a preheader, don't do any unswitching. if (!loopPreheader) return false; + Function *F = loopHeader->getParent(); + // If the condition is trivial, always unswitch. There is no code growth for // this case. if (!IsTrivialUnswitchCondition(LoopCond)) { |
