xref: /llvm-project/polly/test/ScopInfo/NonAffine/non_affine_loop_condition.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops                                   '-passes=print<polly-detect>,print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
2; RUN: opt %loadNPMPolly -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops -polly-process-unprofitable=false '-passes=print<polly-detect>,print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s --check-prefix=PROFIT
3; RUN: opt %loadNPMPolly -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops -polly-detect-reductions=false    '-passes=print<polly-detect>,print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s -check-prefix=NO-REDUCTION
4;
5;    void f(int *A, int *C) {
6;      for (int i = 0; i < 1024; i++) {
7;        while (C[i])
8;          A[i]++;
9;      }
10;    }
11;
12; CHECK:      Function: f
13; CHECK-NEXT: Region: %bb1---%bb12
14; CHECK-NEXT: Max Loop Depth:  1
15; CHECK-NEXT: Invariant Accesses: {
16; CHECK-NEXT: }
17; CHECK-NEXT: Context:
18; CHECK-NEXT: {  :  }
19; CHECK-NEXT: Assumed Context:
20; CHECK-NEXT: {  :  }
21; CHECK-NEXT: Invalid Context:
22; CHECK-NEXT: {  : false }
23; CHECK:      Arrays {
24; CHECK-NEXT:     i32 MemRef_C[*]; // Element size 4
25; CHECK-NEXT:     i32 MemRef_A[*]; // Element size 4
26; CHECK-NEXT: }
27; CHECK-NEXT: Arrays (Bounds as pw_affs) {
28; CHECK-NEXT:     i32 MemRef_C[*]; // Element size 4
29; CHECK-NEXT:     i32 MemRef_A[*]; // Element size 4
30; CHECK-NEXT: }
31; CHECK-NEXT: Alias Groups (1):
32; CHECK-NEXT:     {{\[\[}} <{ MemRef_C[(0)] }, { MemRef_C[(1024)] }> <{ MemRef_A[(0)] }, { MemRef_A[(1024)] }> {{\]\]}}
33; CHECK-NEXT: Statements {
34; CHECK-NEXT:     Stmt_bb3__TO__bb10
35; CHECK-NEXT:         Domain :=
36; CHECK-NEXT:             { Stmt_bb3__TO__bb10[i0] : 0 <= i0 <= 1023 };
37; CHECK-NEXT:         Schedule :=
38; CHECK-NEXT:             { Stmt_bb3__TO__bb10[i0] -> [i0] };
39; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
40; CHECK-NEXT:             { Stmt_bb3__TO__bb10[i0] -> MemRef_C[i0] };
41; CHECK-NEXT:         ReadAccess :=    [Reduction Type: +] [Scalar: 0]
42; CHECK-NEXT:             { Stmt_bb3__TO__bb10[i0] -> MemRef_A[i0] };
43; CHECK-NEXT:         MayWriteAccess :=    [Reduction Type: +] [Scalar: 0]
44; CHECK-NEXT:             { Stmt_bb3__TO__bb10[i0] -> MemRef_A[i0] };
45; CHECK-NEXT: }
46
47; PROFIT-NOT: Statements
48
49; NO-REDUCTION-NOT: Reduction Type: +
50
51target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
52
53define void @f(ptr %A, ptr %C) {
54bb:
55  br label %bb1
56
57bb1:                                              ; preds = %bb11, %bb
58  %indvars.iv = phi i64 [ %indvars.iv.next, %bb11 ], [ 0, %bb ]
59  %exitcond = icmp ne i64 %indvars.iv, 1024
60  br i1 %exitcond, label %bb2, label %bb12
61
62bb2:                                              ; preds = %bb1
63  br label %bb3
64
65bb3:                                              ; preds = %bb6, %bb2
66  %tmp = getelementptr inbounds i32, ptr %C, i64 %indvars.iv
67  %tmp4 = load i32, ptr %tmp, align 4
68  %tmp5 = icmp eq i32 %tmp4, 0
69  br i1 %tmp5, label %bb10, label %bb6
70
71bb6:                                              ; preds = %bb3
72  %tmp7 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
73  %tmp8 = load i32, ptr %tmp7, align 4
74  %tmp9 = add nsw i32 %tmp8, 1
75  store i32 %tmp9, ptr %tmp7, align 4
76  br label %bb3
77
78bb10:                                             ; preds = %bb3
79  br label %bb11
80
81bb11:                                             ; preds = %bb10
82  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
83  br label %bb1
84
85bb12:                                             ; preds = %bb1
86  ret void
87}
88