1; RUN: opt %loadPolly %defaultOpts -polly-cloog -analyze %s | FileCheck %s
2; RUN: opt %loadPolly %defaultOpts -polly-codegen %s | lli -
3; ModuleID = 'sequential_loops.s'
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
5target triple = "x86_64-pc-linux-gnu"
6
7@A = common global [1024 x i32] zeroinitializer, align 4 ; <[1024 x i32]*> [#uses=5]
8
9define void @sequential_loops() nounwind {
10bb:
11  br label %bb1
12
13bb1:                                              ; preds = %bb3, %bb
14  %indvar1 = phi i64 [ %indvar.next2, %bb3 ], [ 0, %bb ]
15  %scevgep4 = getelementptr [1024 x i32]* @A, i64 0, i64 %indvar1
16  %exitcond3 = icmp ne i64 %indvar1, 512
17  br i1 %exitcond3, label %bb2, label %bb4
18
19bb2:                                              ; preds = %bb1
20  store i32 1, i32* %scevgep4
21  br label %bb3
22
23bb3:                                              ; preds = %bb2
24  %indvar.next2 = add i64 %indvar1, 1
25  br label %bb1
26
27bb4:                                              ; preds = %bb1
28  br label %bb5
29
30bb5:                                              ; preds = %bb7, %bb4
31  %indvar = phi i64 [ %indvar.next, %bb7 ], [ 0, %bb4 ]
32  %tmp = add i64 %indvar, 512
33  %scevgep = getelementptr [1024 x i32]* @A, i64 0, i64 %tmp
34  %exitcond = icmp ne i64 %indvar, 512
35  br i1 %exitcond, label %bb6, label %bb8
36
37bb6:                                              ; preds = %bb5
38  store i32 2, i32* %scevgep
39  br label %bb7
40
41bb7:                                              ; preds = %bb6
42  %indvar.next = add i64 %indvar, 1
43  br label %bb5
44
45bb8:                                              ; preds = %bb5
46  ret void
47}
48
49define i32 @main() nounwind {
50bb:
51  call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
52  call void @sequential_loops()
53  br label %bb1
54
55bb1:                                              ; preds = %bb15, %bb
56  %indvar = phi i64 [ %indvar.next, %bb15 ], [ 0, %bb ]
57  %i.0 = trunc i64 %indvar to i32
58  %scevgep = getelementptr [1024 x i32]* @A, i64 0, i64 %indvar
59  %tmp = icmp slt i32 %i.0, 1024
60  br i1 %tmp, label %bb2, label %bb16
61
62bb2:                                              ; preds = %bb1
63  %tmp3 = load i32* %scevgep
64  %tmp4 = icmp ne i32 %tmp3, 1
65  br i1 %tmp4, label %bb5, label %bb8
66
67bb5:                                              ; preds = %bb2
68  %tmp6 = icmp slt i32 %i.0, 512
69  br i1 %tmp6, label %bb7, label %bb8
70
71bb7:                                              ; preds = %bb5
72  br label %bb17
73
74bb8:                                              ; preds = %bb5, %bb2
75  %tmp9 = load i32* %scevgep
76  %tmp10 = icmp ne i32 %tmp9, 2
77  br i1 %tmp10, label %bb11, label %bb14
78
79bb11:                                             ; preds = %bb8
80  %tmp12 = icmp sge i32 %i.0, 512
81  br i1 %tmp12, label %bb13, label %bb14
82
83bb13:                                             ; preds = %bb11
84  br label %bb17
85
86bb14:                                             ; preds = %bb11, %bb8
87  br label %bb15
88
89bb15:                                             ; preds = %bb14
90  %indvar.next = add i64 %indvar, 1
91  br label %bb1
92
93bb16:                                             ; preds = %bb1
94  br label %bb17
95
96bb17:                                             ; preds = %bb16, %bb13, %bb7
97  %.0 = phi i32 [ 1, %bb7 ], [ 1, %bb13 ], [ 0, %bb16 ]
98  ret i32 %.0
99}
100
101declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
102; CHECK: for (c2=0;c2<=511;c2++) {
103; CHECK:     Stmt_bb2(c2);
104; CHECK: }
105; CHECK: for (c2=0;c2<=511;c2++) {
106; CHECK:     Stmt_bb6(c2);
107; CHECK: }
108
109