xref: /llvm-project/polly/test/CodeGen/20100720-MultipleConditions.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly '-passes=print<polly-ast>' -disable-output < %s
2
3;int bar1();
4;int bar2();
5;int bar3();
6;int k;
7;#define N 100
8;int A[N];
9;
10;int main() {
11;  int i, j, z;
12;
13;  __sync_synchronize();
14;  for (i = 0; i < N; i++) {
15;    if (i < 50)
16;      A[i] = 8;
17;    if (i < 4)
18;      A[i] = 9;
19;    if (i < 3)
20;      A[i] = 10;
21;  }
22;  __sync_synchronize();
23;
24;  return A[z];
25;}
26
27target 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"
28
29@A = common global [100 x i32] zeroinitializer, align 16 ; <ptr> [#uses=2]
30@k = common global i32 0, align 4                 ; <ptr> [#uses=0]
31
32define i32 @main() nounwind {
33; <label>:0
34  fence seq_cst
35  br label %1
36
37; <label>:1                                       ; preds = %12, %0
38  %indvar = phi i64 [ %indvar.next, %12 ], [ 0, %0 ] ; <i64> [#uses=4]
39  %scevgep = getelementptr [100 x i32], ptr @A, i64 0, i64 %indvar ; <ptr> [#uses=3]
40  %i.0 = trunc i64 %indvar to i32                 ; <i32> [#uses=3]
41  %exitcond = icmp ne i64 %indvar, 100            ; <i1> [#uses=1]
42  br i1 %exitcond, label %2, label %13
43
44; <label>:2                                       ; preds = %1
45  %3 = icmp slt i32 %i.0, 50                      ; <i1> [#uses=1]
46  br i1 %3, label %4, label %5
47
48; <label>:4                                       ; preds = %2
49  store i32 8, ptr %scevgep
50  br label %5
51
52; <label>:5                                       ; preds = %4, %2
53  %6 = icmp slt i32 %i.0, 4                       ; <i1> [#uses=1]
54  br i1 %6, label %7, label %8
55
56; <label>:7                                       ; preds = %5
57  store i32 9, ptr %scevgep
58  br label %8
59
60; <label>:8                                       ; preds = %7, %5
61  %9 = icmp slt i32 %i.0, 3                       ; <i1> [#uses=1]
62  br i1 %9, label %10, label %11
63
64; <label>:10                                      ; preds = %8
65  store i32 10, ptr %scevgep
66  br label %11
67
68; <label>:11                                      ; preds = %10, %8
69  br label %12
70
71; <label>:12                                      ; preds = %11
72  %indvar.next = add i64 %indvar, 1               ; <i64> [#uses=1]
73  br label %1
74
75; <label>:13                                      ; preds = %1
76  fence seq_cst
77  %14 = sext i32 undef to i64                     ; <i64> [#uses=1]
78  %15 = getelementptr inbounds i32, ptr @A, i64 %14 ; <ptr> [#uses=1]
79  %16 = load i32, ptr %15                             ; <i32> [#uses=1]
80  ret i32 %16
81}
82
83; CHECK: for (c2=0;c2<=2;c2++) {
84; CHECK:     S0(c2);
85; CHECK:       S1(c2);
86; CHECK:         S2(c2);
87; CHECK: }
88; CHECK: S0(3);
89; CHECK: S1(3);
90; CHECK: for (c2=4;c2<=49;c2++) {
91; CHECK:     S0(c2);
92; CHECK: }
93; CHECK: S0: Stmt_4
94; CHECK: S1: Stmt_7
95; CHECK: S2: Stmt_10
96