New testcase that crashes the code extractor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12485 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/CodeExtractor/2004-03-17-OutputMismatch.ll b/test/Transforms/CodeExtractor/2004-03-17-OutputMismatch.ll
new file mode 100644 (file)
index 0000000..ca5cbf1
--- /dev/null
+++ b/test/Transforms/CodeExtractor/2004-03-17-OutputMismatch.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -loop-extract -disable-output
+
+       %struct.node_t = type { double*, %struct.node_t*, %struct.node_t**, double**, double*, int, int }
+       %struct.table_t = type { [1 x %struct.node_t**], [1 x %struct.node_t**] }
+
+implementation   ; Functions:
+
+void %make_tables() {
+entry:
+       %tmp.0.i = malloc %struct.node_t                ; <%struct.node_t*> [#uses=1]
+       br bool false, label %no_exit.i, label %loopexit.i
+
+no_exit.i:             ; preds = %entry, %no_exit.i
+       %prev_node.0.i.1 = phi %struct.node_t* [ %tmp.16.i, %no_exit.i ], [ %tmp.0.i, %entry ]          ; <%struct.node_t*> [#uses=0]
+       %tmp.16.i = malloc %struct.node_t               ; <%struct.node_t*> [#uses=2]
+       br bool false, label %no_exit.i, label %loopexit.i
+
+loopexit.i:            ; preds = %entry, %no_exit.i
+       %cur_node.0.i.0 = phi %struct.node_t* [ null, %entry ], [ %tmp.16.i, %no_exit.i ]               ; <%struct.node_t*> [#uses=0]
+       ret void
+}