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Diffstat (limited to 'lib/Transforms/Scalar/JumpThreading.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/JumpThreading.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp index d1769fc3ebb3..55ffc23e1308 100644 --- a/lib/Transforms/Scalar/JumpThreading.cpp +++ b/lib/Transforms/Scalar/JumpThreading.cpp @@ -1322,6 +1322,10 @@ bool JumpThreadingPass::ProcessBranchOnXOR(BinaryOperator *BO) { if (!isa<PHINode>(BB->front())) return false; + // If this BB is a landing pad, we won't be able to split the edge into it. + if (BB->isEHPad()) + return false; + // If we have a xor as the branch input to this block, and we know that the // LHS or RHS of the xor in any predecessor is true/false, then we can clone // the condition into the predecessor and fix that value to true, saving some |