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| author | Chris Lattner <sabre@nondot.org> | 2009-11-10 01:19:06 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-11-10 01:19:06 +0000 |
| commit | be11db68943873256b01340ff364c784c066f6b3 (patch) | |
| tree | 30c6d096499dfc899cacfe73ffb8933d68c9ebcc /llvm/lib/Transforms | |
| parent | 612e38026a51b3a5ee9458bd8a9c3a0af8569ce9 (diff) | |
| download | bcm5719-llvm-be11db68943873256b01340ff364c784c066f6b3.tar.gz bcm5719-llvm-be11db68943873256b01340ff364c784c066f6b3.zip | |
don't invalidate PN, rewrite of this code is in progress anyway.
llvm-svn: 86639
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/JumpThreading.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Scalar/JumpThreading.cpp b/llvm/lib/Transforms/Scalar/JumpThreading.cpp index 46d40ef5d15..7a7f407b96b 100644 --- a/llvm/lib/Transforms/Scalar/JumpThreading.cpp +++ b/llvm/lib/Transforms/Scalar/JumpThreading.cpp @@ -223,10 +223,11 @@ static void RemovePredecessorAndSimplify(BasicBlock *BB, BasicBlock *Pred, U = PNV; // See if we can simplify it. - if (Value *V = SimplifyInstruction(User, TD)) { - User->replaceAllUsesWith(V); - User->eraseFromParent(); - } + if (User != PN) + if (Value *V = SimplifyInstruction(User, TD)) { + User->replaceAllUsesWith(V); + User->eraseFromParent(); + } } PN->replaceAllUsesWith(PNV); |
