Fix PR5023: The instruction form of DominatorTree::dominates did not
take into consideration that the result of an invoke is only valid in
the normal dest, not the unwind dest. This caused 'PHINode::hasConstantValue'
to return true in an invalid situation, causing mem2reg to delete a phi that
was actually needed. This caused a crash building 483.xalancbmk.
llvm-svn: 82491
diff --git a/llvm/test/Transforms/Mem2Reg/crash.ll b/llvm/test/Transforms/Mem2Reg/crash.ll
new file mode 100644
index 0000000..ce795aa
--- /dev/null
+++ b/llvm/test/Transforms/Mem2Reg/crash.ll
@@ -0,0 +1,24 @@
+; RUN: opt < %s -mem2reg -S
+; PR5023
+
+declare i32 @bar()
+
+define i32 @foo() {
+entry:
+ %whichFlag = alloca i32
+ %A = invoke i32 @bar()
+ to label %invcont2 unwind label %lpad86
+
+invcont2:
+ store i32 %A, i32* %whichFlag
+ br label %bb15
+
+bb15:
+ %B = load i32* %whichFlag
+ ret i32 %B
+
+lpad86:
+ br label %bb15
+
+}
+