bfe-patterns.ll
6.78 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
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=VI %s
; GCN-LABEL: {{^}}v_ubfe_sub_i32:
; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]]
; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]]
; GCN: v_bfe_u32 v{{[0-9]+}}, [[SRC]], 0, [[WIDTH]]
define amdgpu_kernel void @v_ubfe_sub_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x
%in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%src = load volatile i32, i32 addrspace(1)* %in0.gep
%width = load volatile i32, i32 addrspace(1)* %in0.gep
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = lshr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
ret void
}
; GCN-LABEL: {{^}}v_ubfe_sub_multi_use_shl_i32:
; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]]
; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]]
; GCN: v_sub_{{[iu]}}32_e32 [[SUB:v[0-9]+]], vcc, 32, [[WIDTH]]
; SI-NEXT: v_lshl_b32_e32 [[SHL:v[0-9]+]], [[SRC]], [[SUB]]
; SI-NEXT: v_lshr_b32_e32 [[BFE:v[0-9]+]], [[SHL]], [[SUB]]
; VI-NEXT: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], [[SUB]], [[SRC]]
; VI-NEXT: v_lshrrev_b32_e32 [[BFE:v[0-9]+]], [[SUB]], [[SHL]]
; GCN: [[BFE]]
; GCN: [[SHL]]
define amdgpu_kernel void @v_ubfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x
%in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%src = load volatile i32, i32 addrspace(1)* %in0.gep
%width = load volatile i32, i32 addrspace(1)* %in0.gep
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = lshr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
store volatile i32 %shl, i32 addrspace(1)* undef
ret void
}
; GCN-LABEL: {{^}}s_ubfe_sub_i32:
; GCN: s_load_dwordx2 s{{\[}}[[SRC:[0-9]+]]:[[WIDTH:[0-9]+]]{{\]}}, s[0:1], {{0xb|0x2c}}
; GCN: v_mov_b32_e32 [[VWIDTH:v[0-9]+]], s[[WIDTH]]
; GCN: v_bfe_u32 v{{[0-9]+}}, s[[SRC]], 0, [[VWIDTH]]
define amdgpu_kernel void @s_ubfe_sub_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = lshr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
ret void
}
; GCN-LABEL: {{^}}s_ubfe_sub_multi_use_shl_i32:
; GCN: s_load_dwordx2 s{{\[}}[[SRC:[0-9]+]]:[[WIDTH:[0-9]+]]{{\]}}, s[0:1], {{0xb|0x2c}}
; GCN: s_sub_i32 [[SUB:s[0-9]+]], 32, s[[WIDTH]]
; GCN: s_lshl_b32 [[SHL:s[0-9]+]], s[[SRC]], [[SUB]]
; GCN: s_lshr_b32 s{{[0-9]+}}, [[SHL]], [[SUB]]
define amdgpu_kernel void @s_ubfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = lshr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
store volatile i32 %shl, i32 addrspace(1)* undef
ret void
}
; GCN-LABEL: {{^}}v_sbfe_sub_i32:
; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]]
; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]]
; GCN: v_bfe_i32 v{{[0-9]+}}, [[SRC]], 0, [[WIDTH]]
define amdgpu_kernel void @v_sbfe_sub_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x
%in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%src = load volatile i32, i32 addrspace(1)* %in0.gep
%width = load volatile i32, i32 addrspace(1)* %in0.gep
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = ashr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
ret void
}
; GCN-LABEL: {{^}}v_sbfe_sub_multi_use_shl_i32:
; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]]
; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]]
; GCN: v_sub_{{[iu]}}32_e32 [[SUB:v[0-9]+]], vcc, 32, [[WIDTH]]
; SI-NEXT: v_lshl_b32_e32 [[SHL:v[0-9]+]], [[SRC]], [[SUB]]
; SI-NEXT: v_ashr_i32_e32 [[BFE:v[0-9]+]], [[SHL]], [[SUB]]
; VI-NEXT: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], [[SUB]], [[SRC]]
; VI-NEXT: v_ashrrev_i32_e32 [[BFE:v[0-9]+]], [[SUB]], [[SHL]]
; GCN: [[BFE]]
; GCN: [[SHL]]
define amdgpu_kernel void @v_sbfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x
%in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%src = load volatile i32, i32 addrspace(1)* %in0.gep
%width = load volatile i32, i32 addrspace(1)* %in0.gep
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = ashr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
store volatile i32 %shl, i32 addrspace(1)* undef
ret void
}
; GCN-LABEL: {{^}}s_sbfe_sub_i32:
; GCN: s_load_dwordx2 s{{\[}}[[SRC:[0-9]+]]:[[WIDTH:[0-9]+]]{{\]}}, s[0:1], {{0xb|0x2c}}
; GCN: v_mov_b32_e32 [[VWIDTH:v[0-9]+]], s[[WIDTH]]
; GCN: v_bfe_i32 v{{[0-9]+}}, s[[SRC]], 0, [[VWIDTH]]
define amdgpu_kernel void @s_sbfe_sub_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = ashr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
ret void
}
; GCN-LABEL: {{^}}s_sbfe_sub_multi_use_shl_i32:
; GCN: s_load_dwordx2 s{{\[}}[[SRC:[0-9]+]]:[[WIDTH:[0-9]+]]{{\]}}, s[0:1], {{0xb|0x2c}}
; GCN: s_sub_i32 [[SUB:s[0-9]+]], 32, s[[WIDTH]]
; GCN: s_lshl_b32 [[SHL:s[0-9]+]], s[[SRC]], [[SUB]]
; GCN: s_ashr_i32 s{{[0-9]+}}, [[SHL]], [[SUB]]
define amdgpu_kernel void @s_sbfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 {
%id.x = tail call i32 @llvm.amdgcn.workitem.id.x()
%out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x
%sub = sub i32 32, %width
%shl = shl i32 %src, %sub
%bfe = ashr i32 %shl, %sub
store i32 %bfe, i32 addrspace(1)* %out.gep
store volatile i32 %shl, i32 addrspace(1)* undef
ret void
}
declare i32 @llvm.amdgcn.workitem.id.x() #0
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }