1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
| ; RUN: opt %loadPolly -polly-scops -analyze < %s \
; RUN: -polly-invariant-load-hoisting \
; RUN: | FileCheck %s
; Make sure we choose a canonical element that is not the first invariant load,
; but the first that is an array base pointer.
; CHECK: Statements {
; CHECK-NEXT: Stmt_body0
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body0[i0] : 0 <= i0 <= 1022 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body0[i0] -> [i0, 0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_body0[i0] -> MemRef_X[0] };
; CHECK-NEXT: Stmt_body1
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body1[i0] : 0 <= i0 <= 1022 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body1[i0] -> [i0, 1] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_body1[i0] -> MemRef_baseB[0] };
; CHECK-NEXT: Stmt_body2
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body2[i0] : 0 <= i0 <= 1022 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body2[i0] -> [i0, 2] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_body2[i0] -> MemRef_X[0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: { Stmt_body2[i0] -> MemRef_ptr[] };
; CHECK-NEXT: Stmt_body3
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body3[i0] : 0 <= i0 <= 1022 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body3[i0] -> [i0, 3] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_body3[i0] -> MemRef_baseB[0] };
; CHECK-NEXT: Stmt_body4
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body4[i0] : 0 <= i0 <= 1022 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body4[i0] -> [i0, 4] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_body4[i0] -> MemRef_X[0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: { Stmt_body4[i0] -> MemRef_ptr[] };
; CHECK-NEXT: }
define void @foo(float** %A, float** %X) {
start:
br label %loop
loop:
%indvar = phi i64 [0, %start], [%indvar.next, %latch]
%indvar.next = add nsw i64 %indvar, 1
%icmp = icmp slt i64 %indvar.next, 1024
br i1 %icmp, label %body0, label %exit
body0:
%ptr = load float*, float** %A
store float* %ptr, float** %X
br label %body1
body1:
%baseA = load float*, float** %A
store float 42.0, float* %baseA
br label %body2
body2:
%ptr2 = load float*, float** %A
store float* %ptr, float** %X
br label %body3
body3:
%baseB = load float*, float** %A
store float 42.0, float* %baseB
br label %body4
body4:
%ptr3 = load float*, float** %A
store float* %ptr, float** %X
br label %latch
latch:
br label %loop
exit:
ret void
}
|