new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30554 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll b/test/Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll
new file mode 100644 (file)
index 0000000..eb3b659
--- /dev/null
+++ b/test/Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll
@@ -0,0 +1,46 @@
+; RUN: llvm-as < %s | opt -indvars -disable-output
+
+       %struct.p7prior_s = type { int, int, [200 x float], [200 x [7 x float]], int, [200 x float], [200 x [20 x float]], int, [200 x float], [200 x [20 x float]] }
+
+implementation   ; Functions:
+
+void %P7DefaultPrior() {
+entry:
+       switch int 0, label %UnifiedReturnBlock [
+                int 2, label %bb160
+                int 3, label %bb
+       ]
+
+bb:            ; preds = %entry
+       br bool false, label %cond_true.i, label %sre_malloc.exit
+
+cond_true.i:           ; preds = %bb
+       unreachable
+
+sre_malloc.exit:               ; preds = %bb
+       br label %cond_true
+
+cond_true:             ; preds = %cond_true66, %cond_true, %sre_malloc.exit
+       %tmp59 = phi int [ 1, %sre_malloc.exit ], [ %phitmp, %cond_true66 ], [ %tmp59, %cond_true ]             ; <int> [#uses=2]
+       %indvar245.0.ph = phi uint [ 0, %sre_malloc.exit ], [ %indvar.next246, %cond_true66 ], [ %indvar245.0.ph, %cond_true ]          ; <uint> [#uses=2]
+       br bool false, label %bb57, label %cond_true
+
+bb57:          ; preds = %cond_true
+       %tmp65 = setgt int 0, %tmp59            ; <bool> [#uses=1]
+       %indvar.next246 = add uint %indvar245.0.ph, 1           ; <uint> [#uses=2]
+       br bool %tmp65, label %cond_true66, label %bb69
+
+cond_true66:           ; preds = %bb57
+       %q.1.0 = cast uint %indvar.next246 to int               ; <int> [#uses=1]
+       %phitmp = add int %q.1.0, 1             ; <int> [#uses=1]
+       br label %cond_true
+
+bb69:          ; preds = %bb57
+       ret void
+
+bb160:         ; preds = %entry
+       ret void
+
+UnifiedReturnBlock:            ; preds = %entry
+       ret void
+}