1 ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX6,GFX6_8_9,MAD %s
2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8,GFX6_8_9,GFX8_9,GFX8_9_10,MAD %s
3 ; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX9,GFX6_8_9,GFX8_9,GFX8_9_10,MAD %s
4 ; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX10,GFX8_9_10,GFX10-MAD %s
5 ; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -fp-contract=fast < %s | FileCheck -check-prefixes=GCN,GFX10,GFX8_9_10,FMA %s
7 declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
8 declare float @llvm.fabs.f32(float) nounwind readnone
10 ; GCN-LABEL: {{^}}madak_f32:
11 ; GFX6: buffer_load_dword [[VA:v[0-9]+]]
12 ; GFX6: buffer_load_dword [[VB:v[0-9]+]]
13 ; GFX8: {{flat|global}}_load_dword [[VA:v[0-9]+]]
14 ; GFX8: {{flat|global}}_load_dword [[VB:v[0-9]+]]
15 ; GFX9: {{flat|global}}_load_dword [[VA:v[0-9]+]]
16 ; GFX9: {{flat|global}}_load_dword [[VB:v[0-9]+]]
17 ; GFX10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
18 ; GFX10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
19 ; MAD: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
20 ; GFX10-MAD: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
21 ; FMA: v_fmaak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
22 define amdgpu_kernel void @madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
23 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
24 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
25 %in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
26 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
28 %a = load float, float addrspace(1)* %in.a.gep, align 4
29 %b = load float, float addrspace(1)* %in.b.gep, align 4
31 %mul = fmul float %a, %b
32 %madak = fadd float %mul, 10.0
33 store float %madak, float addrspace(1)* %out.gep, align 4
37 ; Make sure this is only folded with one use. This is a code size
38 ; optimization and if we fold the immediate multiple times, we'll undo
41 ; GCN-LABEL: {{^}}madak_2_use_f32:
42 ; GFX9: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
43 ; GFX10: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
44 ; GFX6-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
45 ; GFX6-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
46 ; GFX6-DAG: buffer_load_dword [[VC:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8
47 ; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]],
48 ; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]],
49 ; GFX8_9_10: {{flat|global}}_load_dword [[VC:v[0-9]+]],
50 ; GFX6-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
51 ; GFX8-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
52 ; GFX6_8_9-DAG: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
53 ; GFX10-MAD-DAG:v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
54 ; FMA-DAG: v_fmaak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
55 ; MAD-DAG: v_mac_f32_e32 [[VK]], [[VA]], [[VC]]
56 ; FMA-DAG: v_fmac_f32_e32 [[VK]], [[VA]], [[VC]]
58 define amdgpu_kernel void @madak_2_use_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) #0 {
59 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
61 %in.gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
62 %in.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
63 %in.gep.2 = getelementptr float, float addrspace(1)* %in.gep.0, i32 2
65 %out.gep.0 = getelementptr float, float addrspace(1)* %out, i32 %tid
66 %out.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
68 %a = load volatile float, float addrspace(1)* %in.gep.0, align 4
69 %b = load volatile float, float addrspace(1)* %in.gep.1, align 4
70 %c = load volatile float, float addrspace(1)* %in.gep.2, align 4
72 %mul0 = fmul float %a, %b
73 %mul1 = fmul float %a, %c
74 %madak0 = fadd float %mul0, 10.0
75 %madak1 = fadd float %mul1, 10.0
77 store volatile float %madak0, float addrspace(1)* %out.gep.0, align 4
78 store volatile float %madak1, float addrspace(1)* %out.gep.1, align 4
82 ; GCN-LABEL: {{^}}madak_m_inline_imm_f32:
83 ; GCN: {{buffer|flat|global}}_load_dword [[VA:v[0-9]+]]
84 ; MAD: v_madak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
85 ; GFX10-MAD: v_madak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
86 ; FMA: v_fmaak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
87 define amdgpu_kernel void @madak_m_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a) #0 {
88 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
89 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
90 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
92 %a = load float, float addrspace(1)* %in.a.gep, align 4
94 %mul = fmul float 4.0, %a
95 %madak = fadd float %mul, 10.0
96 store float %madak, float addrspace(1)* %out.gep, align 4
100 ; Make sure nothing weird happens with a value that is also allowed as
101 ; an inline immediate.
103 ; GCN-LABEL: {{^}}madak_inline_imm_f32:
104 ; GFX6: buffer_load_dword [[VA:v[0-9]+]]
105 ; GFX6: buffer_load_dword [[VB:v[0-9]+]]
106 ; GFX8: {{flat|global}}_load_dword [[VA:v[0-9]+]]
107 ; GFX8: {{flat|global}}_load_dword [[VB:v[0-9]+]]
108 ; GFX9: {{flat|global}}_load_dword [[VA:v[0-9]+]]
109 ; GFX9: {{flat|global}}_load_dword [[VB:v[0-9]+]]
110 ; GFX10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
111 ; GFX10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
112 ; MAD: v_mad_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
113 ; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
114 ; FMA: v_fma_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
115 define amdgpu_kernel void @madak_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
116 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
117 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
118 %in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
119 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
121 %a = load float, float addrspace(1)* %in.a.gep, align 4
122 %b = load float, float addrspace(1)* %in.b.gep, align 4
124 %mul = fmul float %a, %b
125 %madak = fadd float %mul, 4.0
126 store float %madak, float addrspace(1)* %out.gep, align 4
130 ; We can't use an SGPR when forming madak
131 ; GCN-LABEL: {{^}}s_v_madak_f32:
132 ; GCN-DAG: s_load_dword [[SB:s[0-9]+]]
133 ; GFX6_8_9-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
134 ; GCN-DAG: {{buffer|flat|global}}_load_dword{{(_addtid)?}} [[VA:v[0-9]+]]
135 ; GCN-NOT: v_madak_f32
136 ; GFX6_8_9: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
137 ; GFX10-MAD: v_mad_f32 v{{[0-9]+}}, [[VA]], [[SB]], 0x41200000
138 ; FMA: v_fma_f32 v{{[0-9]+}}, [[VA]], [[SB]], 0x41200000
139 define amdgpu_kernel void @s_v_madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float %b) #0 {
140 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
141 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
142 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
144 %a = load float, float addrspace(1)* %in.a.gep, align 4
146 %mul = fmul float %a, %b
147 %madak = fadd float %mul, 10.0
148 store float %madak, float addrspace(1)* %out.gep, align 4
152 ; GCN-LABEL: @v_s_madak_f32
153 ; GCN-DAG: s_load_dword [[SB:s[0-9]+]]
154 ; GFX6_8_9-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
155 ; GCN-DAG: {{buffer|flat|global}}_load_dword{{(_addtid)?}} [[VA:v[0-9]+]]
156 ; GFX6_8_9-NOT: v_madak_f32
157 ; GFX6_8_9: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
158 ; GFX10-MAD: v_madak_f32 v{{[0-9]+}}, [[SB]], [[VA]], 0x41200000
159 ; FMA: v_fmaak_f32 v{{[0-9]+}}, [[SB]], [[VA]], 0x41200000
160 define amdgpu_kernel void @v_s_madak_f32(float addrspace(1)* noalias %out, float %a, float addrspace(1)* noalias %in.b) #0 {
161 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
162 %in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
163 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
165 %b = load float, float addrspace(1)* %in.b.gep, align 4
167 %mul = fmul float %a, %b
168 %madak = fadd float %mul, 10.0
169 store float %madak, float addrspace(1)* %out.gep, align 4
173 ; GCN-LABEL: {{^}}s_s_madak_f32:
174 ; GCN-NOT: v_madak_f32
175 ; GFX8_9: v_mac_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}}
176 ; GFX10-MAD: v_mac_f32_e64 {{v[0-9]+}}, {{s[0-9]+}}, {{s[0-9]+}}
177 ; FMA: v_fmac_f32_e64 {{v[0-9]+}}, {{s[0-9]+}}, {{s[0-9]+}}
178 define amdgpu_kernel void @s_s_madak_f32(float addrspace(1)* %out, float %a, float %b) #0 {
179 %mul = fmul float %a, %b
180 %madak = fadd float %mul, 10.0
181 store float %madak, float addrspace(1)* %out, align 4
185 ; GCN-LABEL: {{^}}no_madak_src0_modifier_f32:
186 ; GFX6: buffer_load_dword [[VA:v[0-9]+]]
187 ; GFX6: buffer_load_dword [[VB:v[0-9]+]]
188 ; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
189 ; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
190 ; GFX6_8_9: v_mad_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, {{[sv][0-9]+}}
191 ; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, 0x41200000
192 ; FMA: v_fma_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, 0x41200000
194 define amdgpu_kernel void @no_madak_src0_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
195 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
196 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
197 %in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
198 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
200 %a = load float, float addrspace(1)* %in.a.gep, align 4
201 %b = load float, float addrspace(1)* %in.b.gep, align 4
203 %a.fabs = call float @llvm.fabs.f32(float %a) nounwind readnone
205 %mul = fmul float %a.fabs, %b
206 %madak = fadd float %mul, 10.0
207 store float %madak, float addrspace(1)* %out.gep, align 4
211 ; GCN-LABEL: {{^}}no_madak_src1_modifier_f32:
212 ; GFX6: buffer_load_dword [[VA:v[0-9]+]]
213 ; GFX6: buffer_load_dword [[VB:v[0-9]+]]
214 ; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
215 ; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
216 ; GFX6_8_9: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, {{[sv][0-9]+}}
217 ; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, 0x41200000
218 ; FMA: v_fma_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, 0x41200000
220 define amdgpu_kernel void @no_madak_src1_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
221 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
222 %in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
223 %in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
224 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
226 %a = load float, float addrspace(1)* %in.a.gep, align 4
227 %b = load float, float addrspace(1)* %in.b.gep, align 4
229 %b.fabs = call float @llvm.fabs.f32(float %b) nounwind readnone
231 %mul = fmul float %a, %b.fabs
232 %madak = fadd float %mul, 10.0
233 store float %madak, float addrspace(1)* %out.gep, align 4
237 ; SIFoldOperands should not fold the SGPR copy into the instruction before GFX10
238 ; because the implicit immediate already uses the constant bus.
239 ; On GFX10+ we can use two scalar operands.
240 ; GCN-LABEL: {{^}}madak_constant_bus_violation:
241 ; GCN: s_load_dword [[SGPR0:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, {{0x12|0x48}}
243 ; GCN: {{buffer|flat|global}}_load_dword [[VGPR:v[0-9]+]]
244 ; MAD: v_mov_b32_e32 [[MADAK:v[0-9]+]], 0x42280000
245 ; MAD: v_mac_f32_e64 [[MADAK]], [[SGPR0]], 0.5
246 ; GFX10: v_mov_b32_e32 [[SGPR0_VCOPY:v[0-9]+]], [[SGPR0]]
247 ; GFX10-MAD: v_madak_f32 [[MADAK:v[0-9]+]], 0.5, [[SGPR0_VCOPY]], 0x42280000
248 ; FMA: v_fmaak_f32 [[MADAK:v[0-9]+]], 0.5, [[SGPR0_VCOPY]], 0x42280000
249 ; GCN: v_mul_f32_e32 [[MUL:v[0-9]+]], [[MADAK]], [[VGPR]]
250 ; GFX6: buffer_store_dword [[MUL]]
251 ; GFX8_9_10: {{flat|global}}_store_dword v[{{[0-9:]+}}], [[MUL]]
252 define amdgpu_kernel void @madak_constant_bus_violation(i32 %arg1, [8 x i32], float %sgpr0, float %sgpr1) #0 {
254 %tmp = icmp eq i32 %arg1, 0
255 br i1 %tmp, label %bb3, label %bb4
258 store volatile float 0.0, float addrspace(1)* undef
262 %vgpr = load volatile float, float addrspace(1)* undef
263 %tmp0 = fmul float %sgpr0, 0.5
264 %tmp1 = fadd float %tmp0, 42.0
265 %tmp2 = fmul float %tmp1, %vgpr
266 store volatile float %tmp2, float addrspace(1)* undef, align 4
270 attributes #0 = { nounwind "denormal-fp-math-f32"="preserve-sign,preserve-sign" }