xref: /llvm-project/polly/test/ScopInfo/NonAffine/non_affine_float_compare.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -polly-allow-nonaffine-branches '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
2;
3;    void f(float *A) {
4;      for (int i = 0; i < 1024; i++)
5;        if (A[i] == A[i - 1])
6;          A[i]++;
7;    }
8;
9; CHECK:      Function: f
10; CHECK-NEXT: Region: %bb1---%bb14
11; CHECK-NEXT: Max Loop Depth:  1
12; CHECK-NEXT: Invariant Accesses: {
13; CHECK-NEXT: }
14; CHECK-NEXT: Context:
15; CHECK-NEXT: {  :  }
16; CHECK-NEXT: Assumed Context:
17; CHECK-NEXT: {  :  }
18; CHECK-NEXT: Invalid Context:
19; CHECK-NEXT: {  : false }
20; CHECK:      Arrays {
21; CHECK-NEXT:     float MemRef_A[*]; // Element size 4
22; CHECK-NEXT: }
23; CHECK-NEXT: Arrays (Bounds as pw_affs) {
24; CHECK-NEXT:     float MemRef_A[*]; // Element size 4
25; CHECK-NEXT: }
26; CHECK-NEXT: Alias Groups (0):
27; CHECK-NEXT:     n/a
28; CHECK-NEXT: Statements {
29; CHECK-NEXT:     Stmt_bb2__TO__bb12
30; CHECK-NEXT:         Domain :=
31; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] : 0 <= i0 <= 1023 };
32; CHECK-NEXT:         Schedule :=
33; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] -> [i0] };
34; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
35; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] -> MemRef_A[i0] };
36; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
37; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] -> MemRef_A[-1 + i0] };
38; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
39; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] -> MemRef_A[i0] };
40; CHECK-NEXT:         MayWriteAccess :=    [Reduction Type: NONE] [Scalar: 0]
41; CHECK-NEXT:             { Stmt_bb2__TO__bb12[i0] -> MemRef_A[i0] };
42; CHECK-NEXT: }
43target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
44
45define void @f(ptr %A) {
46bb:
47  br label %bb1
48
49bb1:                                              ; preds = %bb13, %bb
50  %indvars.iv = phi i64 [ %indvars.iv.next, %bb13 ], [ 0, %bb ]
51  %exitcond = icmp ne i64 %indvars.iv, 1024
52  br i1 %exitcond, label %bb2, label %bb14
53
54bb2:                                              ; preds = %bb1
55  %tmp = getelementptr inbounds float, ptr %A, i64 %indvars.iv
56  %tmp3 = load float, ptr %tmp, align 4
57  %tmp4 = add nsw i64 %indvars.iv, -1
58  %tmp5 = getelementptr inbounds float, ptr %A, i64 %tmp4
59  %tmp6 = load float, ptr %tmp5, align 4
60  %tmp7 = fcmp oeq float %tmp3, %tmp6
61  br i1 %tmp7, label %bb8, label %bb12
62
63bb8:                                              ; preds = %bb2
64  %tmp9 = getelementptr inbounds float, ptr %A, i64 %indvars.iv
65  %tmp10 = load float, ptr %tmp9, align 4
66  %tmp11 = fadd float %tmp10, 1.000000e+00
67  store float %tmp11, ptr %tmp9, align 4
68  br label %bb12
69
70bb12:                                             ; preds = %bb8, %bb2
71  br label %bb13
72
73bb13:                                             ; preds = %bb12
74  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
75  br label %bb1
76
77bb14:                                             ; preds = %bb1
78  ret void
79}
80