1; RUN: opt < %s -loop-reduce -S | grep add | count 2
2; PR 2662
3@g_3 = common global i16 0		; <i16*> [#uses=2]
4@"\01LC" = internal constant [4 x i8] c"%d\0A\00"		; <[4 x i8]*> [#uses=1]
5
6define void @func_1() nounwind {
7entry:
8	br label %bb
9
10bb:		; preds = %bb, %entry
11	%l_2.0.reg2mem.0 = phi i16 [ 0, %entry ], [ %t1, %bb ]		; <i16> [#uses=2]
12	%t0 = shl i16 %l_2.0.reg2mem.0, 1		; <i16>:0 [#uses=1]
13	store volatile i16 %t0, i16* @g_3, align 2
14	%t1 = add i16 %l_2.0.reg2mem.0, -3		; <i16>:1 [#uses=2]
15	%t2 = icmp slt i16 %t1, 1		; <i1>:2 [#uses=1]
16	br i1 %t2, label %bb, label %return
17
18return:		; preds = %bb
19	ret void
20}
21
22define i32 @main() nounwind {
23entry:
24	tail call void @func_1( ) nounwind
25	load volatile i16* @g_3, align 2		; <i16>:0 [#uses=1]
26	zext i16 %0 to i32		; <i32>:1 [#uses=1]
27	tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), i32 %1 ) nounwind		; <i32>:2 [#uses=0]
28	ret i32 0
29}
30
31declare i32 @printf(i8*, ...) nounwind
32