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-rw-r--r--test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll b/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll
new file mode 100644
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--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll
@@ -0,0 +1,25 @@
+; RUN: opt < %s -loop-unswitch -disable-output
+
+define void @init_caller_save() {
+entry:
+ br label %cond_true78
+cond_next20: ; preds = %cond_true64
+ br label %bb31
+bb31: ; preds = %cond_true64, %cond_true64, %cond_next20
+ %iftmp.29.1 = phi i32 [ 0, %cond_next20 ], [ 0, %cond_true64 ], [ 0, %cond_true64 ] ; <i32> [#uses=0]
+ br label %bb54
+bb54: ; preds = %cond_true78, %bb31
+ br i1 false, label %bb75, label %cond_true64
+cond_true64: ; preds = %bb54
+ switch i32 %i.0.0, label %cond_next20 [
+ i32 17, label %bb31
+ i32 18, label %bb31
+ ]
+bb75: ; preds = %bb54
+ %tmp74.0 = add i32 %i.0.0, 1 ; <i32> [#uses=1]
+ br label %cond_true78
+cond_true78: ; preds = %bb75, %entry
+ %i.0.0 = phi i32 [ 0, %entry ], [ %tmp74.0, %bb75 ] ; <i32> [#uses=2]
+ br label %bb54
+}
+