New testcase that crashes scalarrepl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31150 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll b/test/Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll
new file mode 100644 (file)
index 0000000..4b4298d
--- /dev/null
+++ b/test/Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll
@@ -0,0 +1,75 @@
+; RUN: llvm-as < %s | opt -scalarrepl -disable-output
+
+target datalayout = "e-p:32:32"
+target endian = little
+target pointersize = 32
+target triple = "i686-apple-darwin8.7.2"
+
+implementation   ; Functions:
+
+void %glgProcessColor() {
+entry:
+       %source_ptr = alloca sbyte*, align 4            ; <sbyte**> [#uses=2]
+       br bool false, label %bb1357, label %cond_next583
+
+cond_next583:          ; preds = %entry
+       ret void
+
+bb1357:                ; preds = %entry
+       br bool false, label %bb1365, label %bb27055
+
+bb1365:                ; preds = %bb1357
+       switch uint 0, label %cond_next10377 [
+                uint 0, label %bb4679
+                uint 1, label %bb4679
+                uint 2, label %bb4679
+                uint 3, label %bb4679
+                uint 4, label %bb5115
+                uint 5, label %bb6651
+                uint 6, label %bb7147
+                uint 7, label %bb8683
+                uint 8, label %bb9131
+                uint 9, label %bb9875
+                uint 10, label %bb4679
+                uint 11, label %bb4859
+                uint 12, label %bb4679
+                uint 16, label %bb10249
+       ]
+
+bb4679:                ; preds = %bb1365, %bb1365, %bb1365, %bb1365, %bb1365, %bb1365
+       ret void
+
+bb4859:                ; preds = %bb1365
+       ret void
+
+bb5115:                ; preds = %bb1365
+       ret void
+
+bb6651:                ; preds = %bb1365
+       ret void
+
+bb7147:                ; preds = %bb1365
+       ret void
+
+bb8683:                ; preds = %bb1365
+       ret void
+
+bb9131:                ; preds = %bb1365
+       ret void
+
+bb9875:                ; preds = %bb1365
+       %source_ptr9884 = cast sbyte** %source_ptr to ubyte**           ; <ubyte**> [#uses=1]
+       %tmp9885 = load ubyte** %source_ptr9884         ; <ubyte*> [#uses=0]
+       ret void
+
+bb10249:               ; preds = %bb1365
+       %source_ptr10257 = cast sbyte** %source_ptr to ushort**         ; <ushort**> [#uses=1]
+       %tmp10258 = load ushort** %source_ptr10257              ; <ushort*> [#uses=0]
+       ret void
+
+cond_next10377:                ; preds = %bb1365
+       ret void
+
+bb27055:               ; preds = %bb1357
+       ret void
+}