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
|
; RUN: opt %loadPolly -polly-precise-fold-accesses -polly-print-scops -disable-output < %s | FileCheck %s
;
; void foo(long n, long m, float A[][n][m]) {
; for (long i = 0; i < 100; i++)
; for (long j = 0; j < n; j++)
; for (long k = 0; k < m; k++)
; A[i][j][k] += A[i][n - j - 1][m - k - 1];
; }
;
; Verify that the parameter in the subscript expression is correctly
; recovered.
;
; CHECK: Assumed Context:
; CHECK-NEXT: [n, m] -> { : }
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n, m] -> { Stmt_for_body6[i0, i1, i2] -> MemRef_A[i0, -1 + n - i1, -1 + m - i2] };
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i64 %n, i64 %m, float* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc18, %entry
%i.0 = phi i64 [ 0, %entry ], [ %inc19, %for.inc18 ]
%exitcond = icmp ne i64 %i.0, 100
br i1 %exitcond, label %for.body, label %for.end20
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc15, %for.body
%j.0 = phi i64 [ 0, %for.body ], [ %inc16, %for.inc15 ]
%cmp2 = icmp slt i64 %j.0, %n
br i1 %cmp2, label %for.body3, label %for.end17
for.body3: ; preds = %for.cond1
br label %for.cond4
for.cond4: ; preds = %for.inc, %for.body3
%k.0 = phi i64 [ 0, %for.body3 ], [ %inc, %for.inc ]
%cmp5 = icmp slt i64 %k.0, %m
br i1 %cmp5, label %for.body6, label %for.end
for.body6: ; preds = %for.cond4
%sub = sub nsw i64 %m, %k.0
%sub7 = add nsw i64 %sub, -1
%sub8 = sub nsw i64 %n, %j.0
%sub9 = add nsw i64 %sub8, -1
%tmp = mul nuw i64 %n, %m
%tmp1 = mul nsw i64 %i.0, %tmp
%tmp2 = mul nsw i64 %sub9, %m
%arrayidx.sum = add i64 %tmp1, %tmp2
%arrayidx10.sum = add i64 %arrayidx.sum, %sub7
%arrayidx11 = getelementptr inbounds float, float* %A, i64 %arrayidx10.sum
%tmp3 = load float, float* %arrayidx11, align 4
%tmp4 = mul nuw i64 %n, %m
%tmp5 = mul nsw i64 %i.0, %tmp4
%tmp6 = mul nsw i64 %j.0, %m
%arrayidx12.sum = add i64 %tmp5, %tmp6
%arrayidx13.sum = add i64 %arrayidx12.sum, %k.0
%arrayidx14 = getelementptr inbounds float, float* %A, i64 %arrayidx13.sum
%tmp7 = load float, float* %arrayidx14, align 4
%add = fadd float %tmp7, %tmp3
store float %add, float* %arrayidx14, align 4
br label %for.inc
for.inc: ; preds = %for.body6
%inc = add nuw nsw i64 %k.0, 1
br label %for.cond4
for.end: ; preds = %for.cond4
br label %for.inc15
for.inc15: ; preds = %for.end
%inc16 = add nuw nsw i64 %j.0, 1
br label %for.cond1
for.end17: ; preds = %for.cond1
br label %for.inc18
for.inc18: ; preds = %for.end17
%inc19 = add nuw nsw i64 %i.0, 1
br label %for.cond
for.end20: ; preds = %for.cond
ret void
}
|
