ds_read2_superreg.ll
10.8 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
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
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -mattr=+load-store-opt,-enable-ds128 < %s | FileCheck -check-prefixes=CI,NODS128 %s
@lds = addrspace(3) global [512 x float] undef, align 4
@lds.v2 = addrspace(3) global [512 x <2 x float>] undef, align 4
@lds.v3 = addrspace(3) global [512 x <3 x float>] undef, align 4
@lds.v4 = addrspace(3) global [512 x <4 x float>] undef, align 4
@lds.v8 = addrspace(3) global [512 x <8 x float>] undef, align 4
@lds.v16 = addrspace(3) global [512 x <16 x float>] undef, align 4
; CI-LABEL: {{^}}simple_read2_v2f32_superreg_align4:
; CI: ds_read2_b32 [[RESULT:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset1:1{{$}}
; CI: s_waitcnt lgkmcnt(0)
; CI: buffer_store_dwordx2 [[RESULT]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v2f32_superreg_align4(<2 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <2 x float>], [512 x <2 x float>] addrspace(3)* @lds.v2, i32 0, i32 %x.i
%val0 = load <2 x float>, <2 x float> addrspace(3)* %arrayidx0, align 4
%out.gep = getelementptr inbounds <2 x float>, <2 x float> addrspace(1)* %out, i32 %x.i
store <2 x float> %val0, <2 x float> addrspace(1)* %out.gep
ret void
}
; CI-LABEL: {{^}}simple_read2_v2f32_superreg:
; CI: ds_read_b64 [[RESULT:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}{{$}}
; CI: s_waitcnt lgkmcnt(0)
; CI: buffer_store_dwordx2 [[RESULT]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v2f32_superreg(<2 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <2 x float>], [512 x <2 x float>] addrspace(3)* @lds.v2, i32 0, i32 %x.i
%val0 = load <2 x float>, <2 x float> addrspace(3)* %arrayidx0
%out.gep = getelementptr inbounds <2 x float>, <2 x float> addrspace(1)* %out, i32 %x.i
store <2 x float> %val0, <2 x float> addrspace(1)* %out.gep
ret void
}
; CI-LABEL: {{^}}simple_read2_v4f32_superreg_align4:
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_X:[0-9]+]]:[[REG_Y:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1{{$}}
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_Z:[0-9]+]]:[[REG_W:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:2 offset1:3{{$}}
; CI-DAG: v_add_f32_e32 v[[ADD0:[0-9]+]], v[[REG_X]], v[[REG_Z]]
; CI-DAG: v_add_f32_e32 v[[ADD1:[0-9]+]], v[[REG_Y]], v[[REG_W]]
; CI: v_add_f32_e32 v[[ADD2:[0-9]+]], v[[ADD0]], v[[ADD1]]
; CI: buffer_store_dword v[[ADD2]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v4f32_superreg_align4(float addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <4 x float>], [512 x <4 x float>] addrspace(3)* @lds.v4, i32 0, i32 %x.i
%val0 = load <4 x float>, <4 x float> addrspace(3)* %arrayidx0, align 4
%elt0 = extractelement <4 x float> %val0, i32 0
%elt1 = extractelement <4 x float> %val0, i32 1
%elt2 = extractelement <4 x float> %val0, i32 2
%elt3 = extractelement <4 x float> %val0, i32 3
%add0 = fadd float %elt0, %elt2
%add1 = fadd float %elt1, %elt3
%add2 = fadd float %add0, %add1
%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
store float %add2, float addrspace(1)* %out.gep
ret void
}
; CI-LABEL: {{^}}simple_read2_v3f32_superreg_align4:
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_X:[0-9]+]]:[[REG_Y:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1{{$}}
; CI-DAG: ds_read_b32 v[[REG_Z:[0-9]+]], v{{[0-9]+}} offset:8{{$}}
; CI-DAG: v_add_f32_e32 v[[ADD0:[0-9]+]], v[[REG_X]], v[[REG_Z]]
; CI-DAG: v_add_f32_e32 v[[ADD1:[0-9]+]], v[[ADD0]], v[[REG_Y]]
; CI: buffer_store_dword v[[ADD1]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v3f32_superreg_align4(float addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <3 x float>], [512 x <3 x float>] addrspace(3)* @lds.v3, i32 0, i32 %x.i
%val0 = load <3 x float>, <3 x float> addrspace(3)* %arrayidx0, align 4
%elt0 = extractelement <3 x float> %val0, i32 0
%elt1 = extractelement <3 x float> %val0, i32 1
%elt2 = extractelement <3 x float> %val0, i32 2
%add0 = fadd float %elt0, %elt2
%add1 = fadd float %add0, %elt1
%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
store float %add1, float addrspace(1)* %out.gep
ret void
}
; CI-LABEL: {{^}}simple_read2_v4f32_superreg_align8:
; CI: ds_read2_b64 [[REG_ZW:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset1:1{{$}}
; CI: buffer_store_dwordx4 [[REG_ZW]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v4f32_superreg_align8(<4 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <4 x float>], [512 x <4 x float>] addrspace(3)* @lds.v4, i32 0, i32 %x.i
%val0 = load <4 x float>, <4 x float> addrspace(3)* %arrayidx0, align 8
%out.gep = getelementptr inbounds <4 x float>, <4 x float> addrspace(1)* %out, i32 %x.i
store <4 x float> %val0, <4 x float> addrspace(1)* %out.gep
ret void
}
; CI-LABEL: {{^}}simple_read2_v4f32_superreg:
; CI-DAG: ds_read2_b64 [[REG_ZW:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset1:1{{$}}
; CI: buffer_store_dwordx4 [[REG_ZW]]
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v4f32_superreg(<4 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <4 x float>], [512 x <4 x float>] addrspace(3)* @lds.v4, i32 0, i32 %x.i
%val0 = load <4 x float>, <4 x float> addrspace(3)* %arrayidx0
%out.gep = getelementptr inbounds <4 x float>, <4 x float> addrspace(1)* %out, i32 %x.i
store <4 x float> %val0, <4 x float> addrspace(1)* %out.gep
ret void
}
; FIXME: Extra moves shuffling superregister
; CI-LABEL: {{^}}simple_read2_v8f32_superreg:
; CI-DAG: ds_read2_b64 [[VEC_HI:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset0:2 offset1:3{{$}}
; CI-DAG: ds_read2_b64 [[VEC_LO:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset1:1{{$}}
; CI-DAG: buffer_store_dwordx4 [[VEC_HI]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 offset:16
; CI-DAG: buffer_store_dwordx4 [[VEC_LO]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64{{$}}
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v8f32_superreg(<8 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <8 x float>], [512 x <8 x float>] addrspace(3)* @lds.v8, i32 0, i32 %x.i
%val0 = load <8 x float>, <8 x float> addrspace(3)* %arrayidx0
%out.gep = getelementptr inbounds <8 x float>, <8 x float> addrspace(1)* %out, i32 %x.i
store <8 x float> %val0, <8 x float> addrspace(1)* %out.gep
ret void
}
; FIXME: Extra moves shuffling superregister
; CI-LABEL: {{^}}simple_read2_v16f32_superreg:
; CI-DAG: ds_read2_b64 [[VEC0_3:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset1:1{{$}}
; CI-DAG: ds_read2_b64 [[VEC4_7:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset0:2 offset1:3{{$}}
; CI-DAG: ds_read2_b64 [[VEC8_11:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset0:4 offset1:5{{$}}
; CI-DAG: ds_read2_b64 [[VEC12_15:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}} offset0:6 offset1:7{{$}}
; CI: s_waitcnt lgkmcnt(0)
; CI-DAG: buffer_store_dwordx4 [[VEC0_3]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64{{$}}
; CI-DAG: buffer_store_dwordx4 [[VEC4_7]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 offset:16
; CI-DAG: buffer_store_dwordx4 [[VEC8_11]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 offset:32
; CI-DAG: buffer_store_dwordx4 [[VEC12_15]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 offset:48
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v16f32_superreg(<16 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x <16 x float>], [512 x <16 x float>] addrspace(3)* @lds.v16, i32 0, i32 %x.i
%val0 = load <16 x float>, <16 x float> addrspace(3)* %arrayidx0
%out.gep = getelementptr inbounds <16 x float>, <16 x float> addrspace(1)* %out, i32 %x.i
store <16 x float> %val0, <16 x float> addrspace(1)* %out.gep
ret void
}
; Do scalar loads into the super register we need.
; CI-LABEL: {{^}}simple_read2_v2f32_superreg_scalar_loads_align4:
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_ELT0:[0-9]+]]:[[REG_ELT1:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1{{$}}
; CI-NOT: v_mov {{v[0-9]+}}, {{[sv][0-9]+}}
; CI: buffer_store_dwordx2 v{{\[}}[[REG_ELT0]]:[[REG_ELT1]]{{\]}}
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v2f32_superreg_scalar_loads_align4(<2 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %x.i
%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %arrayidx0, i32 1
%val0 = load float, float addrspace(3)* %arrayidx0
%val1 = load float, float addrspace(3)* %arrayidx1
%vec.0 = insertelement <2 x float> undef, float %val0, i32 0
%vec.1 = insertelement <2 x float> %vec.0, float %val1, i32 1
%out.gep = getelementptr inbounds <2 x float>, <2 x float> addrspace(1)* %out, i32 %x.i
store <2 x float> %vec.1, <2 x float> addrspace(1)* %out.gep
ret void
}
; Do scalar loads into the super register we need.
; CI-LABEL: {{^}}simple_read2_v4f32_superreg_scalar_loads_align4:
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_ELT0:[0-9]+]]:[[REG_ELT1:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1{{$}}
; CI-DAG: ds_read2_b32 v{{\[}}[[REG_ELT2:[0-9]+]]:[[REG_ELT3:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:2 offset1:3{{$}}
; CI-NOT: v_mov {{v[0-9]+}}, {{[sv][0-9]+}}
; CI: buffer_store_dwordx4 v{{\[}}[[REG_ELT0]]:[[REG_ELT3]]{{\]}}
; CI: s_endpgm
define amdgpu_kernel void @simple_read2_v4f32_superreg_scalar_loads_align4(<4 x float> addrspace(1)* %out) #0 {
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
%arrayidx0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %x.i
%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %arrayidx0, i32 1
%arrayidx2 = getelementptr inbounds float, float addrspace(3)* %arrayidx0, i32 2
%arrayidx3 = getelementptr inbounds float, float addrspace(3)* %arrayidx0, i32 3
%val0 = load float, float addrspace(3)* %arrayidx0
%val1 = load float, float addrspace(3)* %arrayidx1
%val2 = load float, float addrspace(3)* %arrayidx2
%val3 = load float, float addrspace(3)* %arrayidx3
%vec.0 = insertelement <4 x float> undef, float %val0, i32 0
%vec.1 = insertelement <4 x float> %vec.0, float %val1, i32 1
%vec.2 = insertelement <4 x float> %vec.1, float %val2, i32 2
%vec.3 = insertelement <4 x float> %vec.2, float %val3, i32 3
%out.gep = getelementptr inbounds <4 x float>, <4 x float> addrspace(1)* %out, i32 %x.i
store <4 x float> %vec.3, <4 x float> addrspace(1)* %out.gep
ret void
}
; Function Attrs: nounwind readnone
declare i32 @llvm.amdgcn.workitem.id.x() #1
; Function Attrs: nounwind readnone
declare i32 @llvm.amdgcn.workitem.id.y() #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
attributes #2 = { convergent nounwind }