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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=amdgcn -mcpu=gfx1150 -verify-machineinstrs < %s | FileCheck -check-prefixes=CHECK,GFX1150 %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx1150 -global-isel -verify-machineinstrs < %s | FileCheck -check-prefixes=CHECK,GFX1150 %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx1200 -verify-machineinstrs < %s | FileCheck -check-prefixes=CHECK,GFX12 %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx1200 -global-isel -verify-machineinstrs < %s | FileCheck -check-prefixes=CHECK,GFX12 %s
define amdgpu_vs float @fadd_f32(float inreg %a, float inreg %b) {
; CHECK-LABEL: fadd_f32:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_add_f32 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%add = fadd float %a, %b
ret float %add
}
define amdgpu_vs float @fsub_f32(float inreg %a, float inreg %b) {
; CHECK-LABEL: fsub_f32:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_sub_f32 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%sub = fsub float %a, %b
ret float %sub
}
define amdgpu_vs float @fmul_f32(float inreg %a, float inreg %b) {
; CHECK-LABEL: fmul_f32:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mul_f32 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%mul = fmul float %a, %b
ret float %mul
}
define amdgpu_vs float @fmin_f32(float inreg %a, float inreg %b) {
; GFX1150-LABEL: fmin_f32:
; GFX1150: ; %bb.0:
; GFX1150-NEXT: s_min_f32 s0, s0, s1
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX1150-NEXT: v_mov_b32_e32 v0, s0
; GFX1150-NEXT: ; return to shader part epilog
;
; GFX12-LABEL: fmin_f32:
; GFX12: ; %bb.0:
; GFX12-NEXT: s_min_num_f32 s0, s0, s1
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX12-NEXT: v_mov_b32_e32 v0, s0
; GFX12-NEXT: ; return to shader part epilog
%min = call float @llvm.minnum.f32(float %a, float %b)
ret float %min
}
define amdgpu_vs float @fmax_f32(float inreg %a, float inreg %b) {
; GFX1150-LABEL: fmax_f32:
; GFX1150: ; %bb.0:
; GFX1150-NEXT: s_max_f32 s0, s0, s1
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX1150-NEXT: v_mov_b32_e32 v0, s0
; GFX1150-NEXT: ; return to shader part epilog
;
; GFX12-LABEL: fmax_f32:
; GFX12: ; %bb.0:
; GFX12-NEXT: s_max_num_f32 s0, s0, s1
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX12-NEXT: v_mov_b32_e32 v0, s0
; GFX12-NEXT: ; return to shader part epilog
%max = call float @llvm.maxnum.f32(float %a, float %b)
ret float %max
}
define amdgpu_vs half @fadd_f16(half inreg %a, half inreg %b) {
; CHECK-LABEL: fadd_f16:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_add_f16 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%add = fadd half %a, %b
ret half %add
}
define amdgpu_vs half @fsub_f16(half inreg %a, half inreg %b) {
; CHECK-LABEL: fsub_f16:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_sub_f16 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%sub = fsub half %a, %b
ret half %sub
}
define amdgpu_vs half @fmul_f16(half inreg %a, half inreg %b) {
; CHECK-LABEL: fmul_f16:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mul_f16 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%mul = fmul half %a, %b
ret half %mul
}
define amdgpu_vs half @fmin_f16(half inreg %a, half inreg %b) {
; GFX1150-LABEL: fmin_f16:
; GFX1150: ; %bb.0:
; GFX1150-NEXT: s_min_f16 s0, s0, s1
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX1150-NEXT: v_mov_b32_e32 v0, s0
; GFX1150-NEXT: ; return to shader part epilog
;
; GFX12-LABEL: fmin_f16:
; GFX12: ; %bb.0:
; GFX12-NEXT: s_min_num_f16 s0, s0, s1
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX12-NEXT: v_mov_b32_e32 v0, s0
; GFX12-NEXT: ; return to shader part epilog
%min = call half @llvm.minnum.f16(half %a, half %b)
ret half %min
}
define amdgpu_vs half @fmax_f16(half inreg %a, half inreg %b) {
; GFX1150-LABEL: fmax_f16:
; GFX1150: ; %bb.0:
; GFX1150-NEXT: s_max_f16 s0, s0, s1
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX1150-NEXT: v_mov_b32_e32 v0, s0
; GFX1150-NEXT: ; return to shader part epilog
;
; GFX12-LABEL: fmax_f16:
; GFX12: ; %bb.0:
; GFX12-NEXT: s_max_num_f16 s0, s0, s1
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX12-NEXT: v_mov_b32_e32 v0, s0
; GFX12-NEXT: ; return to shader part epilog
%max = call half @llvm.maxnum.f16(half %a, half %b)
ret half %max
}
define amdgpu_vs <2 x half> @s_cvt_pkrtz_v2f16_f32(float inreg %x, float inreg %y) {
; CHECK-LABEL: s_cvt_pkrtz_v2f16_f32:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_cvt_pk_rtz_f16_f32 s0, s0, s1
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%result = call <2 x half> @llvm.amdgcn.cvt.pkrtz(float %x, float %y)
ret <2 x half> %result
}
define amdgpu_vs float @fmac_f32(float inreg %a, float inreg %b, float inreg %c) {
; CHECK-LABEL: fmac_f32:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_fmac_f32 s0, s1, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%res = call float @llvm.fma.f32(float %b, float %c, float %a)
ret float %res
}
; Check selection of mov + fmac if src2 of fmac has a use later on
define amdgpu_vs float @fmac_f32_with_mov(float inreg %a, float inreg %b, float inreg %c) {
; CHECK-LABEL: fmac_f32_with_mov:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mov_b32 s3, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_3)
; CHECK-NEXT: s_fmac_f32 s3, s0, s1
; CHECK-NEXT: s_add_f32 s0, s3, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%fma = call float @llvm.fma.f32(float %a, float %b, float %c)
%res = fadd float %fma, %c
ret float %res
}
define amdgpu_vs half @fmac_f16(half inreg %a, half inreg %b, half inreg %c) {
; CHECK-LABEL: fmac_f16:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_fmac_f16 s0, s1, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%res = call half @llvm.fma.f16(half %b, half %c, half %a)
ret half %res
}
; Check selection of mov + fmac if src2 of fmac has a use later
define amdgpu_vs half @fmac_f16_with_mov(half inreg %a, half inreg %b, half inreg %c) {
; CHECK-LABEL: fmac_f16_with_mov:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mov_b32 s3, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_3)
; CHECK-NEXT: s_fmac_f16 s3, s0, s1
; CHECK-NEXT: s_add_f16 s0, s3, s2
; CHECK-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; CHECK-NEXT: v_mov_b32_e32 v0, s0
; CHECK-NEXT: ; return to shader part epilog
%fma = call half @llvm.fma.f16(half %a, half %b, half %c)
%res = fadd half %fma, %c
ret half %res
}
; Regression test for crash in SIFoldOperands
define amdgpu_ps float @_amdgpu_ps_main() {
; GFX1150-LABEL: _amdgpu_ps_main:
; GFX1150: ; %bb.0: ; %bb
; GFX1150-NEXT: s_mov_b32 s0, 0
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_1)
; GFX1150-NEXT: s_mov_b32 s1, s0
; GFX1150-NEXT: s_mov_b32 s2, s0
; GFX1150-NEXT: s_mov_b32 s3, s0
; GFX1150-NEXT: s_buffer_load_b64 s[0:1], s[0:3], 0x0
; GFX1150-NEXT: s_waitcnt lgkmcnt(0)
; GFX1150-NEXT: s_fmac_f32 s0, s1, 4.0
; GFX1150-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX1150-NEXT: v_mov_b32_e32 v0, s0
; GFX1150-NEXT: ; return to shader part epilog
;
; GFX12-LABEL: _amdgpu_ps_main:
; GFX12: ; %bb.0: ; %bb
; GFX12-NEXT: s_mov_b32 s0, 0
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_1)
; GFX12-NEXT: s_mov_b32 s1, s0
; GFX12-NEXT: s_mov_b32 s2, s0
; GFX12-NEXT: s_mov_b32 s3, s0
; GFX12-NEXT: s_buffer_load_b64 s[0:1], s[0:3], 0x0
; GFX12-NEXT: s_wait_kmcnt 0x0
; GFX12-NEXT: s_fmac_f32 s0, s1, 4.0
; GFX12-NEXT: s_delay_alu instid0(SALU_CYCLE_3)
; GFX12-NEXT: v_mov_b32_e32 v0, s0
; GFX12-NEXT: ; return to shader part epilog
bb:
%i = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> zeroinitializer, i32 0, i32 0)
%i1 = bitcast i32 %i to float
%i2 = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> zeroinitializer, i32 4, i32 0)
%i3 = bitcast i32 %i2 to float
%i4 = fmul contract float %i3, 4.0
%i5 = fadd contract float %i4, %i1
ret float %i5
}
declare i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32>, i32, i32 immarg)
declare float @llvm.minnum.f32(float, float)
declare float @llvm.maxnum.f32(float, float)
declare half @llvm.minnum.f16(half, half)
declare half @llvm.maxnum.f16(half, half)
declare <2 x half> @llvm.amdgcn.cvt.pkrtz(float, float)
declare float @llvm.fma.f32(float, float, float) nounwind readnone
declare half @llvm.fma.f16(half, half, half) nounwind readnone
|
