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-rw-r--r--lib/Transforms/NaCl/LowerEmExceptionsPass.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Transforms/NaCl/LowerEmExceptionsPass.cpp b/lib/Transforms/NaCl/LowerEmExceptionsPass.cpp
index 480506dcf0..2c0b294280 100644
--- a/lib/Transforms/NaCl/LowerEmExceptionsPass.cpp
+++ b/lib/Transforms/NaCl/LowerEmExceptionsPass.cpp
@@ -168,6 +168,14 @@ bool LowerEmExceptions::runOnModule(Module &M) {
}
}
+ // Look for orphan landingpads, can occur in blocks with no predecesors
+ for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
+ Instruction *I = BB->getFirstNonPHI();
+ if (LandingPadInst *LP = dyn_cast<LandingPadInst>(I)) {
+ LandingPads.insert(LP);
+ }
+ }
+
// Handle all the landingpad for this function together, as multiple invokes may share a single lp
for (std::set<LandingPadInst*>::iterator I = LandingPads.begin(); I != LandingPads.end(); I++) {
// Replace the landingpad with a landingpad call to get the low part, and a getHigh for the high