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
|
; RUN: opt %loadPolly -polly-print-scops -polly-invariant-load-hoisting=true -disable-output < %s | FileCheck %s
; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -S < %s | FileCheck %s --check-prefix=CODEGEN
;
; int U;
; void f(int *A) {
; for (int i = 0; i < 1000; i++)
; A[i] = (*(int *)&U) + (int)(*(float *)&U);
; }
;
; CHECK: Invariant Accesses: {
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_U[0] };
; CHECK-NEXT: Execution Context: { : }
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_U[0] };
; CHECK-NEXT: Execution Context: { : }
; CHECK-NEXT: }
;
; CHECK: Statements {
; CHECK-NEXT: Stmt_for_body
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_for_body[i0] : 0 <= i0 <= 999 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[i0] };
; CHECK-NEXT: }
;
; CODEGEN: entry:
; CODEGEN-DAG: %U.f.preload.s2a = alloca float
; CODEGEN-DAG: %U.i.preload.s2a = alloca i32
; CODEGEN: br label %polly.split_new_and_old
;
; CODEGEN: polly.preload.begin:
; CODEGEN-DAG: %U.load[[f:[.0-9]*]] = load float, ptr @U
; CODEGEN-DAG: store float %U.load[[f]], ptr %U.f.preload.s2a
; CODEGEN-DAG: %U.load[[i:[.0-9]*]] = load i32, ptr @U
; CODEGEN-DAG: store i32 %U.load[[i]], ptr %U.i.preload.s2a
;
; CODEGEN: polly.merge_new_and_old:
; CODEGEN-NOT: merge = phi
;
; CODEGEN: polly.loop_exit:
; CODEGEN-NOT: final_reload
;
; CODEGEN: polly.stmt.for.body:
; CODEGEN: %p_add = add nsw i32 %U.load[[i]], %p_conv
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
@U = common global i32 0, align 4
define void @f(ptr %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 1000
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%U.i = load i32, ptr @U, align 4
%U.f = load float, ptr @U, align 4
%conv = fptosi float %U.f to i32
%add = add nsw i32 %U.i, %conv
%arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
store i32 %add, ptr %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
|
