1; RUN: opt < %s -loop-reduce -disable-output
2; LSR should not crash on this.
3
4define fastcc void @loadloop() {
5entry:
6	switch i8 0, label %shortcirc_next [
7		 i8 32, label %loopexit.2
8		 i8 59, label %loopexit.2
9	]
10shortcirc_next:		; preds = %no_exit.2, %entry
11	%indvar37 = phi i32 [ 0, %entry ], [ %indvar.next38, %no_exit.2 ]		; <i32> [#uses=3]
12	%gep.upgrd.1 = zext i32 %indvar37 to i64		; <i64> [#uses=1]
13	%wp.2.4 = getelementptr i8* null, i64 %gep.upgrd.1		; <i8*> [#uses=1]
14	br i1 false, label %loopexit.2, label %no_exit.2
15no_exit.2:		; preds = %shortcirc_next
16	%wp.2.4.rec = bitcast i32 %indvar37 to i32		; <i32> [#uses=1]
17	%inc.1.rec = add i32 %wp.2.4.rec, 1		; <i32> [#uses=1]
18	%inc.1 = getelementptr i8* null, i32 %inc.1.rec		; <i8*> [#uses=2]
19	%indvar.next38 = add i32 %indvar37, 1		; <i32> [#uses=1]
20	switch i8 0, label %shortcirc_next [
21		 i8 32, label %loopexit.2
22		 i8 59, label %loopexit.2
23	]
24loopexit.2:		; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry
25	%wp.2.7 = phi i8* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ]		; <i8*> [#uses=0]
26	ret void
27}
28
29