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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt %s -S -riscv-gather-scatter-lowering -mtriple=riscv64 -mattr=+m,+v | FileCheck %s --check-prefixes=CHECK
%struct.foo = type { i32, i32, i32, i32 }
declare <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
define <vscale x 1 x i64> @gather(ptr %a, i32 %len) {
; CHECK-LABEL: @gather(
; CHECK-NEXT: vector.ph:
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[LEN:%.*]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.vscale.i64()
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_IND_SCALAR:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT_SCALAR:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[ACCUM:%.*]] = phi <vscale x 1 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[ACCUM_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_FOO:%.*]], ptr [[A:%.*]], i64 [[VEC_IND_SCALAR]], i32 3
; CHECK-NEXT: [[GATHER:%.*]] = call <vscale x 1 x i64> @llvm.riscv.masked.strided.load.nxv1i64.p0.i64(<vscale x 1 x i64> undef, ptr [[TMP1]], i64 16, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i32 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: [[ACCUM_NEXT]] = add <vscale x 1 x i64> [[ACCUM]], [[GATHER]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP0]]
; CHECK-NEXT: [[VEC_IND_NEXT_SCALAR]] = add i64 [[VEC_IND_SCALAR]], [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i64 [[INDEX_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[TMP2]], label [[FOR_COND_CLEANUP:%.*]], label [[VECTOR_BODY]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret <vscale x 1 x i64> [[ACCUM_NEXT]]
;
vector.ph:
%wide.trip.count = zext i32 %len to i64
%0 = tail call i64 @llvm.vscale.i64()
%1 = tail call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%.splatinsert = insertelement <vscale x 1 x i64> poison, i64 %0, i64 0
%.splat = shufflevector <vscale x 1 x i64> %.splatinsert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%vec.ind = phi <vscale x 1 x i64> [ %1, %vector.ph ], [ %vec.ind.next, %vector.body ]
%accum = phi <vscale x 1 x i64> [ zeroinitializer, %vector.ph ], [ %accum.next, %vector.body ]
%2 = getelementptr inbounds %struct.foo, ptr %a, <vscale x 1 x i64> %vec.ind, i32 3
%gather = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(<vscale x 1 x ptr> %2, i32 8, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i32 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer), <vscale x 1 x i64> undef)
%accum.next = add <vscale x 1 x i64> %accum, %gather
%index.next = add nuw i64 %index, %0
%vec.ind.next = add <vscale x 1 x i64> %vec.ind, %.splat
%3 = icmp ne i64 %index.next, %wide.trip.count
br i1 %3, label %for.cond.cleanup, label %vector.body
for.cond.cleanup: ; preds = %vector.body
ret <vscale x 1 x i64> %accum.next
}
define void @scatter(ptr %a, i32 %len) {
; CHECK-LABEL: @scatter(
; CHECK-NEXT: vector.ph:
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[LEN:%.*]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.vscale.i64()
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_IND_SCALAR:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT_SCALAR:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_FOO:%.*]], ptr [[A:%.*]], i64 [[VEC_IND_SCALAR]], i32 3
; CHECK-NEXT: call void @llvm.riscv.masked.strided.store.nxv1i64.p0.i64(<vscale x 1 x i64> zeroinitializer, ptr [[TMP1]], i64 16, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i32 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP0]]
; CHECK-NEXT: [[VEC_IND_NEXT_SCALAR]] = add i64 [[VEC_IND_SCALAR]], [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i64 [[INDEX_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[TMP2]], label [[FOR_COND_CLEANUP:%.*]], label [[VECTOR_BODY]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
;
vector.ph:
%wide.trip.count = zext i32 %len to i64
%0 = tail call i64 @llvm.vscale.i64()
%1 = tail call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%.splatinsert = insertelement <vscale x 1 x i64> poison, i64 %0, i64 0
%.splat = shufflevector <vscale x 1 x i64> %.splatinsert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%vec.ind = phi <vscale x 1 x i64> [ %1, %vector.ph ], [ %vec.ind.next, %vector.body ]
%2 = getelementptr inbounds %struct.foo, ptr %a, <vscale x 1 x i64> %vec.ind, i32 3
tail call void @llvm.masked.scatter.nxv1i64.nxv1p0(<vscale x 1 x i64> zeroinitializer, <vscale x 1 x ptr> %2, i32 8, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i32 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
%index.next = add nuw i64 %index, %0
%vec.ind.next = add <vscale x 1 x i64> %vec.ind, %.splat
%3 = icmp ne i64 %index.next, %wide.trip.count
br i1 %3, label %for.cond.cleanup, label %vector.body
for.cond.cleanup: ; preds = %vector.body
ret void
}
define <vscale x 1 x i64> @gather_loopless(ptr %p, i64 %stride) {
; CHECK-LABEL: @gather_loopless(
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[STRIDE:%.*]], 4
; CHECK-NEXT: [[X:%.*]] = call <vscale x 1 x i64> @llvm.riscv.masked.strided.load.nxv1i64.p0.i64(<vscale x 1 x i64> poison, ptr [[P:%.*]], i64 [[TMP1]], <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret <vscale x 1 x i64> [[X]]
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 %stride, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offsets = mul <vscale x 1 x i64> %step, %splat
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offsets
%x = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer),
<vscale x 1 x i64> poison
)
ret <vscale x 1 x i64> %x
}
define <vscale x 1 x i64> @straightline_offset_add(ptr %p, i64 %offset) {
; CHECK-LABEL: @straightline_offset_add(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i32, ptr [[P:%.*]], i64 [[OFFSET:%.*]]
; CHECK-NEXT: [[X:%.*]] = call <vscale x 1 x i64> @llvm.riscv.masked.strided.load.nxv1i64.p0.i64(<vscale x 1 x i64> poison, ptr [[TMP1]], i64 4, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret <vscale x 1 x i64> [[X]]
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 %offset, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offsetv = add <vscale x 1 x i64> %step, %splat
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offsetv
%x = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer),
<vscale x 1 x i64> poison
)
ret <vscale x 1 x i64> %x
}
define <vscale x 1 x i64> @straightline_offset_shl(ptr %p) {
; CHECK-LABEL: @straightline_offset_shl(
; CHECK-NEXT: [[X:%.*]] = call <vscale x 1 x i64> @llvm.riscv.masked.strided.load.nxv1i64.p0.i64(<vscale x 1 x i64> poison, ptr [[P:%.*]], i64 32, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret <vscale x 1 x i64> [[X]]
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 3, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offset = shl <vscale x 1 x i64> %step, %splat
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offset
%x = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer),
<vscale x 1 x i64> poison
)
ret <vscale x 1 x i64> %x
}
define <vscale x 1 x i64> @neg_shl_is_not_commutative(ptr %p) {
; CHECK-LABEL: @neg_shl_is_not_commutative(
; CHECK-NEXT: [[STEP:%.*]] = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
; CHECK-NEXT: [[SPLAT_INSERT:%.*]] = insertelement <vscale x 1 x i64> poison, i64 3, i64 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <vscale x 1 x i64> [[SPLAT_INSERT]], <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
; CHECK-NEXT: [[OFFSET:%.*]] = shl <vscale x 1 x i64> [[SPLAT]], [[STEP]]
; CHECK-NEXT: [[PTRS:%.*]] = getelementptr i32, ptr [[P:%.*]], <vscale x 1 x i64> [[OFFSET]]
; CHECK-NEXT: [[X:%.*]] = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(<vscale x 1 x ptr> [[PTRS]], i32 8, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer), <vscale x 1 x i64> poison)
; CHECK-NEXT: ret <vscale x 1 x i64> [[X]]
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 3, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offset = shl <vscale x 1 x i64> %splat, %step
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offset
%x = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer),
<vscale x 1 x i64> poison
)
ret <vscale x 1 x i64> %x
}
define <vscale x 1 x i64> @straightline_offset_shl_nonc(ptr %p, i64 %shift) {
; CHECK-LABEL: @straightline_offset_shl_nonc(
; CHECK-NEXT: [[TMP1:%.*]] = shl i64 1, [[SHIFT:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
; CHECK-NEXT: [[X:%.*]] = call <vscale x 1 x i64> @llvm.riscv.masked.strided.load.nxv1i64.p0.i64(<vscale x 1 x i64> poison, ptr [[P:%.*]], i64 [[TMP2]], <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret <vscale x 1 x i64> [[X]]
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 %shift, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offset = shl <vscale x 1 x i64> %step, %splat
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offset
%x = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer),
<vscale x 1 x i64> poison
)
ret <vscale x 1 x i64> %x
}
define void @scatter_loopless(<vscale x 1 x i64> %x, ptr %p, i64 %stride) {
; CHECK-LABEL: @scatter_loopless(
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[STRIDE:%.*]], 4
; CHECK-NEXT: call void @llvm.riscv.masked.strided.store.nxv1i64.p0.i64(<vscale x 1 x i64> [[X:%.*]], ptr [[P:%.*]], i64 [[TMP1]], <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret void
;
%step = call <vscale x 1 x i64> @llvm.experimental.stepvector.nxv1i64()
%splat.insert = insertelement <vscale x 1 x i64> poison, i64 %stride, i64 0
%splat = shufflevector <vscale x 1 x i64> %splat.insert, <vscale x 1 x i64> poison, <vscale x 1 x i32> zeroinitializer
%offsets = mul <vscale x 1 x i64> %step, %splat
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> %offsets
call void @llvm.masked.scatter.nxv1i64.nxv1p0(
<vscale x 1 x i64> %x,
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer)
)
ret void
}
; We previously crashed expecting a constant to be fixed length.
define void @constant_stride(<vscale x 1 x i64> %x, ptr %p, i64 %stride) {
; CHECK-LABEL: @constant_stride(
; CHECK-NEXT: [[PTRS:%.*]] = getelementptr i32, ptr [[P:%.*]], <vscale x 1 x i64> zeroinitializer
; CHECK-NEXT: call void @llvm.masked.scatter.nxv1i64.nxv1p0(<vscale x 1 x i64> [[X:%.*]], <vscale x 1 x ptr> [[PTRS]], i32 8, <vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 true, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer))
; CHECK-NEXT: ret void
;
%ptrs = getelementptr i32, ptr %p, <vscale x 1 x i64> zeroinitializer
call void @llvm.masked.scatter.nxv1i64.nxv1p0(
<vscale x 1 x i64> %x,
<vscale x 1 x ptr> %ptrs,
i32 8,
<vscale x 1 x i1> shufflevector (<vscale x 1 x i1> insertelement (<vscale x 1 x i1> poison, i1 1, i64 0), <vscale x 1 x i1> poison, <vscale x 1 x i32> zeroinitializer)
)
ret void
}
declare i64 @llvm.vscale.i64()
declare void @llvm.masked.scatter.nxv1i64.nxv1p0(<vscale x 1 x i64>, <vscale x 1 x ptr>, i32, <vscale x 1 x i1>)
declare <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0(<vscale x 1 x ptr>, i32, <vscale x 1 x i1>, <vscale x 1 x i64>)
|
