xref: /llvm-project/polly/test/ScopInfo/intra_and_inter_bb_scalar_dep.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa '-passes=print<polly-function-scops>' -disable-output \
2; RUN: -polly-invariant-load-hoisting=true < %s 2>&1 | FileCheck %s
3
4; void f(long A[], int N, int *init_ptr) {
5;   long i, j;
6;
7;   for (i = 0; i < N; ++i) {
8;     init = *init_ptr;
9;     for (i = 0; i < N; ++i) {
10;       init2 = *init_ptr;
11;       A[i] = init + init2;
12;     }
13;   }
14; }
15
16; CHECK:      Invariant Accesses: {
17; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
18; CHECK-NEXT:             [N] -> { Stmt_for_j[i0, i1] -> MemRef_init_ptr[0] };
19; CHECK-NEXT:         Execution Context: [N] -> {  :  N > 0 }
20; CHECK-NEXT: }
21;
22; CHECK:      Statements {
23; CHECK-NEXT:     Stmt_for_j
24; CHECK-NEXT:         Domain :=
25; CHECK-NEXT:             [N] -> { Stmt_for_j[i0, i1] : 0 <= i0 < N and 0 <= i1 < N };
26; CHECK-NEXT:         Schedule :=
27; CHECK-NEXT:             [N] -> { Stmt_for_j[i0, i1] -> [i0, i1] };
28; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 1]
29; CHECK-NEXT:             [N] -> { Stmt_for_j[i0, i1] -> MemRef_init[] };
30; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: NONE] [Scalar: 0]
31; CHECK-NEXT:             [N] -> { Stmt_for_j[i0, i1] -> MemRef_A[i1] };
32; CHECK-NEXT: }
33
34target 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"
35
36define void @f(ptr noalias %A, i64 %N, ptr noalias %init_ptr) #0 {
37entry:
38  br label %for.i
39
40for.i:                                            ; preds = %for.i.end, %entry
41  %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
42  %indvar.i.next = add nsw i64 %indvar.i, 1
43  br label %entry.next
44
45entry.next:                                       ; preds = %for.i
46  %init = load i64, ptr %init_ptr
47  br label %for.j
48
49for.j:                                            ; preds = %for.j, %entry.next
50  %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
51  %init_2 = load i64, ptr %init_ptr
52  %init_sum = add i64 %init, %init_2
53  %scevgep = getelementptr i64, ptr %A, i64 %indvar.j
54  store i64 %init_sum, ptr %scevgep
55  %indvar.j.next = add nsw i64 %indvar.j, 1
56  %exitcond.j = icmp eq i64 %indvar.j.next, %N
57  br i1 %exitcond.j, label %for.i.end, label %for.j
58
59for.i.end:                                        ; preds = %for.j
60  %exitcond.i = icmp eq i64 %indvar.i.next, %N
61  br i1 %exitcond.i, label %return, label %for.i
62
63return:                                           ; preds = %for.i.end
64  ret void
65}
66
67attributes #0 = { nounwind }
68