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Diffstat (limited to 'lib/Transforms/Scalar/CodeGenPrepare.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/CodeGenPrepare.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp index 1f3a13cc9c..85e57661c1 100644 --- a/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -327,6 +327,12 @@ static void SplitEdgeNicely(TerminatorInst *TI, unsigned SuccNum, assert(isa<PHINode>(Dest->begin()) && "This should only be called if Dest has a PHI!"); + // Do not split edges to EH landing pads. + if (InvokeInst *Invoke = dyn_cast<InvokeInst>(TI)) { + if (Invoke->getSuccessor(1) == Dest) + return; + } + // As a hack, never split backedges of loops. Even though the copy for any // PHIs inserted on the backedge would be dead for exits from the loop, we // assume that the cost of *splitting* the backedge would be too high. |