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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
; REQUIRES: asserts
; RUN: opt < %s -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -instcombine -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
; CHECK-LABEL: vector_gep
; CHECK-NOT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, i32* %b, <2 x i64> [[VEC_IND]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[INDEX]]
; CHECK-NEXT: [[TMP3:%.*]] = bitcast i32** [[TMP2]] to <2 x i32*>*
; CHECK-NEXT: store <2 x i32*> [[TMP1]], <2 x i32*>* [[TMP3]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], <i64 2, i64 2>
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @vector_gep(i32** %a, i32 *%b, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
%tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
store i32* %tmp0, i32** %tmp1, align 8
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: scalar_store
; CHECK: LV: Found scalar instruction: %tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
; CHECK-NEXT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
; CHECK-NEXT: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[OFFSET_IDX]], 2
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, i32* %b, i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, i32* %b, i64 [[TMP4]]
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[TMP4]]
; CHECK-NEXT: store i32* [[TMP5]], i32** [[TMP7]], align 8
; CHECK-NEXT: store i32* [[TMP6]], i32** [[TMP8]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @scalar_store(i32** %a, i32 *%b, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
%tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
store i32* %tmp0, i32** %tmp1, align 8
%i.next = add nuw nsw i64 %i, 2
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: expansion
; CHECK: LV: Found scalar instruction: %tmp3 = getelementptr inbounds i32*, i32** %tmp2, i64 %i
; CHECK-NEXT: LV: Found scalar instruction: %tmp1 = bitcast i64* %tmp0 to i32*
; CHECK-NEXT: LV: Found scalar instruction: %tmp2 = getelementptr inbounds i32*, i32** %a, i64 0
; CHECK-NEXT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i64, i64* %b, i64 %i
; CHECK-NEXT: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[OFFSET_IDX]], 2
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, i64* %b, i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, i64* %b, i64 [[TMP4]]
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[TMP4]]
; CHECK-NEXT: [[TMP9:%.*]] = bitcast i32** [[TMP7]] to i64**
; CHECK-NEXT: store i64* [[TMP5]], i64** [[TMP9]], align 8
; CHECK-NEXT: [[TMP10:%.*]] = bitcast i32** [[TMP8]] to i64**
; CHECK-NEXT: store i64* [[TMP6]], i64** [[TMP10]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @expansion(i32** %a, i64 *%b, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = getelementptr inbounds i64, i64* %b, i64 %i
%tmp1 = bitcast i64* %tmp0 to i32*
%tmp2 = getelementptr inbounds i32*, i32** %a, i64 0
%tmp3 = getelementptr inbounds i32*, i32** %tmp2, i64 %i
store i32* %tmp1, i32** %tmp3, align 8
%i.next = add nuw nsw i64 %i, 2
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: no_gep_or_bitcast
; CHECK-NOT: LV: Found scalar instruction: %tmp1 = load i32*, i32** %tmp0, align 8
; CHECK: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 1
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[INDEX]]
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32** [[TMP1]] to <2 x i32*>*
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i32*>, <2 x i32*>* [[TMP2]], align 8
; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x i32*> [[WIDE_LOAD]], i32 0
; CHECK-NEXT: store i32 0, i32* [[TMP3]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i32*> [[WIDE_LOAD]], i32 1
; CHECK-NEXT: store i32 0, i32* [[TMP4]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @no_gep_or_bitcast(i32** noalias %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = getelementptr inbounds i32*, i32** %a, i64 %i
%tmp1 = load i32*, i32** %tmp0, align 8
store i32 0, i32* %tmp1, align 8
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
|
