SwitchInst *CatchSwitch) {
ConstantInt *InvokeNoC = ConstantInt::get(Type::Int32Ty, InvokeNo);
+ // If the unwind edge has phi nodes, split the edge.
+ if (isa<PHINode>(II->getUnwindDest()->begin())) {
+ SplitCriticalEdge(II, 1, this);
+
+ // If there are any phi nodes left, they must have a single predecessor.
+ while (PHINode *PN = dyn_cast<PHINode>(II->getUnwindDest()->begin())) {
+ PN->replaceAllUsesWith(PN->getIncomingValue(0));
+ PN->eraseFromParent();
+ }
+ }
+
// Insert a store of the invoke num before the invoke and store zero into the
// location afterward.
new StoreInst(InvokeNoC, InvokeNum, true, II); // volatile
--- /dev/null
+; RUN: llvm-as < %s | opt -lowerinvoke -enable-correct-eh-support -disable-output
+; PR2029
+define i32 @main(i32 %argc, i8** %argv) {
+bb470:
+ invoke i32 @main(i32 0, i8** null) to label %invcont474 unwind label
+%lpad902
+
+invcont474: ; preds = %bb470
+ ret i32 0
+
+lpad902: ; preds = %bb470
+ %tmp471.lcssa = phi i8* [ null, %bb470 ] ; <i8*>
+ ret i32 0
+}