1 ; RUN: llc -mtriple=amdgcn -mattr=+mad-mac-f32-insts -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
2 ; XUN: llc -mtriple=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
4 ; FIXME: None of these trigger madmk emission anymore. It is still
5 ; possible, but requires the correct registers to be used which is
8 declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
9 declare float @llvm.fabs.f32(float) nounwind readnone
11 ; GCN-LABEL: {{^}}madmk_f32:
12 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
13 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
14 ; GCN: v_madmk_f32 {{v[0-9]+}}, [[VA]], 0x41200000, [[VB]]
15 define amdgpu_kernel void @madmk_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
16 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
17 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
18 %gep.1 = getelementptr float, ptr addrspace(1) %gep.0, i32 1
19 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
21 %a = load volatile float, ptr addrspace(1) %gep.0, align 4
22 %b = load volatile float, ptr addrspace(1) %gep.1, align 4
24 %mul = fmul float %a, 10.0
25 %madmk = fadd float %mul, %b
26 store float %madmk, ptr addrspace(1) %out.gep, align 4
30 ; GCN-LABEL: {{^}}madmk_2_use_f32:
31 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
32 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
33 ; GCN-DAG: buffer_load_dword [[VC:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8
34 ; GCN-DAG: v_mac_f32_e32 [[VB]], 0x41200000, [[VA]]
35 ; GCN-DAG: v_mac_f32_e32 [[VC]], 0x41200000, [[VA]]
37 define amdgpu_kernel void @madmk_2_use_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
38 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
40 %in.gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
41 %in.gep.1 = getelementptr float, ptr addrspace(1) %in.gep.0, i32 1
42 %in.gep.2 = getelementptr float, ptr addrspace(1) %in.gep.0, i32 2
44 %out.gep.0 = getelementptr float, ptr addrspace(1) %out, i32 %tid
45 %out.gep.1 = getelementptr float, ptr addrspace(1) %in.gep.0, i32 1
47 %a = load volatile float, ptr addrspace(1) %in.gep.0, align 4
48 %b = load volatile float, ptr addrspace(1) %in.gep.1, align 4
49 %c = load volatile float, ptr addrspace(1) %in.gep.2, align 4
51 %mul0 = fmul float %a, 10.0
52 %mul1 = fmul float %a, 10.0
53 %madmk0 = fadd float %mul0, %b
54 %madmk1 = fadd float %mul1, %c
56 store float %madmk0, ptr addrspace(1) %out.gep.0, align 4
57 store float %madmk1, ptr addrspace(1) %out.gep.1, align 4
61 ; We don't get any benefit if the constant is an inline immediate.
62 ; GCN-LABEL: {{^}}madmk_inline_imm_f32:
63 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
64 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
65 ; GCN: v_mac_f32_e32 [[VB]], 4.0, [[VA]]
66 define amdgpu_kernel void @madmk_inline_imm_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
67 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
68 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
69 %gep.1 = getelementptr float, ptr addrspace(1) %gep.0, i32 1
70 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
72 %a = load volatile float, ptr addrspace(1) %gep.0, align 4
73 %b = load volatile float, ptr addrspace(1) %gep.1, align 4
75 %mul = fmul float %a, 4.0
76 %madmk = fadd float %mul, %b
77 store float %madmk, ptr addrspace(1) %out.gep, align 4
81 ; GCN-LABEL: {{^}}s_s_madmk_f32:
82 ; GCN-NOT: v_madmk_f32
85 define amdgpu_kernel void @s_s_madmk_f32(ptr addrspace(1) noalias %out, [8 x i32], float %a, [8 x i32], float %b) #0 {
86 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
87 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
89 %mul = fmul float %a, 10.0
90 %madmk = fadd float %mul, %b
91 store float %madmk, ptr addrspace(1) %out.gep, align 4
95 ; GCN-LABEL: {{^}}v_s_madmk_f32:
96 ; GCN-DAG: s_load_dword [[SREG:s[0-9]+]]
97 ; GCN-DAG: buffer_load_dword [[VREG1:v[0-9]+]]
98 ; GCN: v_mov_b32_e32 [[VREG2:v[0-9]+]], [[SREG]]
99 ; GCN: v_madmk_f32 {{v[0-9]+}}, [[VREG1]], 0x41200000, [[VREG2]]
101 define amdgpu_kernel void @v_s_madmk_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in, float %b) #0 {
102 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
103 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
104 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
105 %a = load float, ptr addrspace(1) %gep.0, align 4
107 %mul = fmul float %a, 10.0
108 %madmk = fadd float %mul, %b
109 store float %madmk, ptr addrspace(1) %out.gep, align 4
113 ; GCN-LABEL: {{^}}scalar_vector_madmk_f32:
114 ; GCN-NOT: v_madmk_f32
117 define amdgpu_kernel void @scalar_vector_madmk_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in, float %a) #0 {
118 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
119 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
120 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
121 %b = load float, ptr addrspace(1) %gep.0, align 4
123 %mul = fmul float %a, 10.0
124 %madmk = fadd float %mul, %b
125 store float %madmk, ptr addrspace(1) %out.gep, align 4
129 ; GCN-LABEL: {{^}}no_madmk_src0_modifier_f32:
130 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
131 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
132 ; GCN-DAG: s_mov_b32 [[SK:s[0-9]+]], 0x41200000
133 ; GCN: v_mad_f32 {{v[0-9]+}}, |[[VA]]|, [[SK]], [[VB]]
134 define amdgpu_kernel void @no_madmk_src0_modifier_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
135 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
136 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
137 %gep.1 = getelementptr float, ptr addrspace(1) %gep.0, i32 1
138 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
140 %a = load volatile float, ptr addrspace(1) %gep.0, align 4
141 %b = load volatile float, ptr addrspace(1) %gep.1, align 4
143 %a.fabs = call float @llvm.fabs.f32(float %a) nounwind readnone
145 %mul = fmul float %a.fabs, 10.0
146 %madmk = fadd float %mul, %b
147 store float %madmk, ptr addrspace(1) %out.gep, align 4
151 ; GCN-LABEL: {{^}}no_madmk_src2_modifier_f32:
152 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
153 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
154 ; GCN: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, {{[sv][0-9]+}}, |{{v[0-9]+}}|
155 define amdgpu_kernel void @no_madmk_src2_modifier_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
156 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
157 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
158 %gep.1 = getelementptr float, ptr addrspace(1) %gep.0, i32 1
159 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
161 %a = load volatile float, ptr addrspace(1) %gep.0, align 4
162 %b = load volatile float, ptr addrspace(1) %gep.1, align 4
164 %b.fabs = call float @llvm.fabs.f32(float %b) nounwind readnone
166 %mul = fmul float %a, 10.0
167 %madmk = fadd float %mul, %b.fabs
168 store float %madmk, ptr addrspace(1) %out.gep, align 4
172 ; GCN-LABEL: {{^}}madmk_add_inline_imm_f32:
173 ; GCN: buffer_load_dword [[A:v[0-9]+]]
174 ; GCN: v_mov_b32_e32 [[B:v[0-9]+]], 2.0
175 ; GCN: v_madmk_f32 {{v[0-9]+}}, [[A]], 0x41200000, [[B]]
177 define amdgpu_kernel void @madmk_add_inline_imm_f32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) #0 {
178 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
179 %gep.0 = getelementptr float, ptr addrspace(1) %in, i32 %tid
180 %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
182 %a = load float, ptr addrspace(1) %gep.0, align 4
184 %mul = fmul float %a, 10.0
185 %madmk = fadd float %mul, 2.0
186 store float %madmk, ptr addrspace(1) %out.gep, align 4
190 ; SI-LABEL: {{^}}kill_madmk_verifier_error:
193 ; SI: v_mac_f32_e32 {{v[0-9]+}}, 0x472aee8c, {{v[0-9]+}}
194 define amdgpu_kernel void @kill_madmk_verifier_error() #0 {
201 bb2: ; preds = %bb6, %bb
202 %tmp = phi float [ undef, %bb ], [ %tmp8, %bb6 ]
203 %tid = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #1
204 %f_tid = bitcast i32 %tid to float
205 %tmp3 = fsub float %f_tid, %tmp
206 %tmp5 = fcmp oeq float %tmp3, 1.000000e+04
207 br i1 %tmp5, label %bb1, label %bb6
210 %tmp7 = fmul float %tmp, 0x40E55DD180000000
211 %tmp8 = fadd float %tmp7, %tmp
215 declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #1
217 attributes #0 = { nounwind "denormal-fp-math-f32"="preserve-sign,preserve-sign" }
218 attributes #1 = { nounwind readnone }