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1; RUN: opt < %s -indvars -S > %t
2; RUN: not grep sext %t
3
4define i64 @test(i64* nocapture %first, i32 %count) nounwind readonly {
5entry:
6	%t0 = icmp sgt i32 %count, 0		; <i1> [#uses=1]
7	br i1 %t0, label %bb.nph, label %bb2
8
9bb.nph:		; preds = %entry
10	br label %bb
11
12bb:		; preds = %bb1, %bb.nph
13	%result.02 = phi i64 [ %t5, %bb1 ], [ 0, %bb.nph ]		; <i64> [#uses=1]
14	%n.01 = phi i32 [ %t6, %bb1 ], [ 0, %bb.nph ]		; <i32> [#uses=2]
15	%t1 = sext i32 %n.01 to i64		; <i64> [#uses=1]
16	%t2 = getelementptr i64* %first, i64 %t1		; <i64*> [#uses=1]
17	%t3 = load i64* %t2, align 8		; <i64> [#uses=1]
18	%t4 = lshr i64 %t3, 4		; <i64> [#uses=1]
19	%t5 = add i64 %t4, %result.02		; <i64> [#uses=2]
20	%t6 = add i32 %n.01, 1		; <i32> [#uses=2]
21	br label %bb1
22
23bb1:		; preds = %bb
24	%t7 = icmp slt i32 %t6, %count		; <i1> [#uses=1]
25	br i1 %t7, label %bb, label %bb1.bb2_crit_edge
26
27bb1.bb2_crit_edge:		; preds = %bb1
28	%.lcssa = phi i64 [ %t5, %bb1 ]		; <i64> [#uses=1]
29	br label %bb2
30
31bb2:		; preds = %bb1.bb2_crit_edge, %entry
32	%result.0.lcssa = phi i64 [ %.lcssa, %bb1.bb2_crit_edge ], [ 0, %entry ]		; <i64> [#uses=1]
33	ret i64 %result.0.lcssa
34}
35
36define void @foo(i16 signext %N, i32* nocapture %P) nounwind {
37entry:
38	%t0 = icmp sgt i16 %N, 0		; <i1> [#uses=1]
39	br i1 %t0, label %bb.nph, label %return
40
41bb.nph:		; preds = %entry
42	br label %bb
43
44bb:		; preds = %bb1, %bb.nph
45	%i.01 = phi i16 [ %t3, %bb1 ], [ 0, %bb.nph ]		; <i16> [#uses=2]
46	%t1 = sext i16 %i.01 to i64		; <i64> [#uses=1]
47	%t2 = getelementptr i32* %P, i64 %t1		; <i32*> [#uses=1]
48	store i32 123, i32* %t2, align 4
49	%t3 = add i16 %i.01, 1		; <i16> [#uses=2]
50	br label %bb1
51
52bb1:		; preds = %bb
53	%t4 = icmp slt i16 %t3, %N		; <i1> [#uses=1]
54	br i1 %t4, label %bb, label %bb1.return_crit_edge
55
56bb1.return_crit_edge:		; preds = %bb1
57	br label %return
58
59return:		; preds = %bb1.return_crit_edge, %entry
60	ret void
61}
62
63; Test cases from PR1301:
64
65define void @kinds__srangezero([21 x i32]* nocapture %a) nounwind {
66bb.thread:
67  br label %bb
68
69bb:             ; preds = %bb, %bb.thread
70  %i.0.reg2mem.0 = phi i8 [ -10, %bb.thread ], [ %tmp7, %bb ]           ; <i8> [#uses=2]
71  %tmp12 = sext i8 %i.0.reg2mem.0 to i32                ; <i32> [#uses=1]
72  %tmp4 = add i32 %tmp12, 10            ; <i32> [#uses=1]
73  %tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4                ; <i32*> [#uses=1]
74  store i32 0, i32* %tmp5
75  %tmp7 = add i8 %i.0.reg2mem.0, 1              ; <i8> [#uses=2]
76  %0 = icmp sgt i8 %tmp7, 10            ; <i1> [#uses=1]
77  br i1 %0, label %return, label %bb
78
79return:         ; preds = %bb
80  ret void
81}
82
83define void @kinds__urangezero([21 x i32]* nocapture %a) nounwind {
84bb.thread:
85  br label %bb
86
87bb:             ; preds = %bb, %bb.thread
88  %i.0.reg2mem.0 = phi i8 [ 10, %bb.thread ], [ %tmp7, %bb ]            ; <i8> [#uses=2]
89  %tmp12 = sext i8 %i.0.reg2mem.0 to i32                ; <i32> [#uses=1]
90  %tmp4 = add i32 %tmp12, -10           ; <i32> [#uses=1]
91  %tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4                ; <i32*> [#uses=1]
92  store i32 0, i32* %tmp5
93  %tmp7 = add i8 %i.0.reg2mem.0, 1              ; <i8> [#uses=2]
94  %0 = icmp sgt i8 %tmp7, 30            ; <i1> [#uses=1]
95  br i1 %0, label %return, label %bb
96
97return:         ; preds = %bb
98  ret void
99}
100