New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5809 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/Mem2Reg/2003-04-18-DeadBlockProblem.ll b/test/Transforms/Mem2Reg/2003-04-18-DeadBlockProblem.ll
new file mode 100644 (file)
index 0000000..8a3dc1e
--- /dev/null
+++ b/test/Transforms/Mem2Reg/2003-04-18-DeadBlockProblem.ll
@@ -0,0 +1,17 @@
+; This testcases makes sure that mem2reg can handle unreachable blocks.
+; RUN: as < %s | opt -mem2reg
+
+int %test() {
+       %X = alloca int
+
+       store int 6, int* %X
+       br label %Loop
+Loop:
+       store int 5, int* %X
+       br label %EndOfLoop
+Unreachable:
+       br label %EndOfLoop
+
+EndOfLoop:
+       br label %Loop
+}