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
|
; RUN: opt %loadPolly -basic-aa -polly-print-scops -disable-output \
; RUN: -polly-invariant-load-hoisting=true < %s | FileCheck %s
; void f(long A[], int N, int *init_ptr) {
; long i, j;
;
; for (i = 0; i < N; ++i) {
; init = *init_ptr;
; for (i = 0; i < N; ++i) {
; init2 = *init_ptr;
; A[i] = init + init2;
; }
; }
; }
; CHECK: Invariant Accesses: {
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> MemRef_init_ptr[0] };
; CHECK-NEXT: Execution Context: [N] -> { : N > 0 }
; CHECK-NEXT: }
;
; CHECK: Statements {
; CHECK-NEXT: Stmt_for_j
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] : 0 <= i0 < N and 0 <= i1 < N };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> [i0, i1] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> MemRef_init[] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> MemRef_A[i1] };
; CHECK-NEXT: }
target 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"
define void @f(i64* noalias %A, i64 %N, i64* noalias %init_ptr) #0 {
entry:
br label %for.i
for.i: ; preds = %for.i.end, %entry
%indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
%indvar.i.next = add nsw i64 %indvar.i, 1
br label %entry.next
entry.next: ; preds = %for.i
%init = load i64, i64* %init_ptr
br label %for.j
for.j: ; preds = %for.j, %entry.next
%indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
%init_2 = load i64, i64* %init_ptr
%init_sum = add i64 %init, %init_2
%scevgep = getelementptr i64, i64* %A, i64 %indvar.j
store i64 %init_sum, i64* %scevgep
%indvar.j.next = add nsw i64 %indvar.j, 1
%exitcond.j = icmp eq i64 %indvar.j.next, %N
br i1 %exitcond.j, label %for.i.end, label %for.j
for.i.end: ; preds = %for.j
%exitcond.i = icmp eq i64 %indvar.i.next, %N
br i1 %exitcond.i, label %return, label %for.i
return: ; preds = %for.i.end
ret void
}
attributes #0 = { nounwind }
|
