user_provided_non_dominating_assumptions.ll
4 KB
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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
; RUN: opt %loadPolly -pass-remarks-analysis="polly-scops" -polly-scops \
; RUN: -polly-precise-inbounds -disable-output < %s 2>&1 | FileCheck %s
;
; CHECK: remark: <unknown>:0:0: SCoP begins here.
; CHECK-NEXT: remark: <unknown>:0:0: Use user assumption: [i, N, M] -> { : N <= i or (N > i and N >= 0) }
; CHECK-NEXT: remark: <unknown>:0:0: Inbounds assumption: [i, N, M] -> { : N <= i or (N > i and M <= 100) }
; CHECK-NEXT: remark: <unknown>:0:0: SCoP ends here.
;
; void f(int *restrict A, int *restrict B, int i, int N, int M, int C[100][100]) {
; for (; i < N; i++) {
; __builtin_assume(N >= 0);
; for (int j = 0; j != M; j++) {
; __builtin_assume(N >= 0);
; C[i][j] += A[i * M + j] + B[i + j];
; }
; }
; }
;
; RUN: opt %loadPolly -pass-remarks-analysis="polly-scops" -polly-scops \
; RUN: -polly-precise-inbounds -disable-output < %s 2>&1 -pass-remarks-output=%t.yaml
; RUN: cat %t.yaml | FileCheck -check-prefix=YAML %s
; YAML: --- !Analysis
; YAML: Pass: polly-scops
; YAML: Name: ScopEntry
; YAML: Function: f
; YAML: Args:
; YAML: - String: SCoP begins here.
; YAML: ...
; YAML: --- !Analysis
; YAML: Pass: polly-scops
; YAML: Name: UserAssumption
; YAML: Function: f
; YAML: Args:
; YAML: - String: 'Use user assumption: '
; YAML: - String: '[i, N, M] -> { : N <= i or (N > i and N >= 0) }'
; YAML: ...
; YAML: --- !Analysis
; YAML: Pass: polly-scops
; YAML: Name: AssumpRestrict
; YAML: Function: f
; YAML: Args:
; YAML: - String: 'Inbounds assumption: [i, N, M] -> { : N <= i or (N > i and M <= 100) }'
; YAML: ...
; YAML: --- !Analysis
; YAML: Pass: polly-scops
; YAML: Name: ScopEnd
; YAML: Function: f
; YAML: Args:
; YAML: - String: SCoP ends here.
; YAML: ...
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* noalias %A, i32* noalias %B, i32 %i, i32 %N, i32 %M, [100 x i32]* %C) {
entry:
%tmp = zext i32 %M to i64
%tmp6 = sext i32 %i to i64
%tmp7 = sext i32 %N to i64
%tmp8 = sext i32 %M to i64
br label %for.cond
for.cond: ; preds = %for.inc.15, %entry
%indvars.iv3 = phi i64 [ %indvars.iv.next4, %for.inc.15 ], [ %tmp6, %entry ]
%cmp = icmp slt i64 %indvars.iv3, %tmp7
br i1 %cmp, label %for.body, label %for.end.17
for.body: ; preds = %for.cond
%cmp1 = icmp sgt i32 %N, -1
call void @llvm.assume(i1 %cmp1)
br label %for.cond.2
for.cond.2: ; preds = %for.inc, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %for.body ]
%cmp3 = icmp eq i64 %indvars.iv, %tmp
br i1 %cmp3, label %for.end, label %for.body.4
for.body.4: ; preds = %for.cond.2
%tmp9 = mul nsw i64 %indvars.iv3, %tmp8
%tmp10 = add nsw i64 %tmp9, %indvars.iv
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %tmp10
%tmp11 = load i32, i32* %arrayidx, align 4
%tmp12 = add nsw i64 %indvars.iv3, %indvars.iv
%arrayidx8 = getelementptr inbounds i32, i32* %B, i64 %tmp12
%tmp13 = load i32, i32* %arrayidx8, align 4
%add9 = add nsw i32 %tmp11, %tmp13
%arrayidx13 = getelementptr inbounds [100 x i32], [100 x i32]* %C, i64 %indvars.iv3, i64 %indvars.iv
%tmp14 = load i32, i32* %arrayidx13, align 4
%add14 = add nsw i32 %tmp14, %add9
store i32 %add14, i32* %arrayidx13, align 4
br label %for.inc
for.inc: ; preds = %for.body.4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond.2
for.end: ; preds = %for.cond.2
br label %for.inc.15
for.inc.15: ; preds = %for.end
%indvars.iv.next4 = add nsw i64 %indvars.iv3, 1
br label %for.cond
for.end.17: ; preds = %for.cond
ret void
}
declare void @llvm.assume(i1) #1