1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
2 ; XUN: llc -march=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{{$}}
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_mac_f32_e32 [[VB]], 0x41200000, [[VA]]
15 define amdgpu_kernel void @madmk_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
16 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
17 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
18 %gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
19 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
21 %a = load volatile float, float addrspace(1)* %gep.0, align 4
22 %b = load volatile float, float addrspace(1)* %gep.1, align 4
24 %mul = fmul float %a, 10.0
25 %madmk = fadd float %mul, %b
26 store float %madmk, float 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{{$}}
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: s_mov_b32 [[SK:s[0-9]+]], 0x41200000
35 ; GCN-DAG: v_mac_f32_e32 [[VB]], [[SK]], [[VA]]
36 ; GCN-DAG: v_mac_f32_e32 [[VC]], [[SK]], [[VA]]
38 define amdgpu_kernel void @madmk_2_use_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
39 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
41 %in.gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
42 %in.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
43 %in.gep.2 = getelementptr float, float addrspace(1)* %in.gep.0, i32 2
45 %out.gep.0 = getelementptr float, float addrspace(1)* %out, i32 %tid
46 %out.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
48 %a = load volatile float, float addrspace(1)* %in.gep.0, align 4
49 %b = load volatile float, float addrspace(1)* %in.gep.1, align 4
50 %c = load volatile float, float addrspace(1)* %in.gep.2, align 4
52 %mul0 = fmul float %a, 10.0
53 %mul1 = fmul float %a, 10.0
54 %madmk0 = fadd float %mul0, %b
55 %madmk1 = fadd float %mul1, %c
57 store float %madmk0, float addrspace(1)* %out.gep.0, align 4
58 store float %madmk1, float addrspace(1)* %out.gep.1, align 4
62 ; We don't get any benefit if the constant is an inline immediate.
63 ; GCN-LABEL: {{^}}madmk_inline_imm_f32:
64 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
65 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
66 ; GCN: v_mac_f32_e32 [[VB]], 4.0, [[VA]]
67 define amdgpu_kernel void @madmk_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
68 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
69 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
70 %gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
71 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
73 %a = load volatile float, float addrspace(1)* %gep.0, align 4
74 %b = load volatile float, float addrspace(1)* %gep.1, align 4
76 %mul = fmul float %a, 4.0
77 %madmk = fadd float %mul, %b
78 store float %madmk, float addrspace(1)* %out.gep, align 4
82 ; GCN-LABEL: {{^}}s_s_madmk_f32:
83 ; GCN-NOT: v_madmk_f32
86 define amdgpu_kernel void @s_s_madmk_f32(float addrspace(1)* noalias %out, [8 x i32], float %a, [8 x i32], float %b) nounwind {
87 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
88 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
90 %mul = fmul float %a, 10.0
91 %madmk = fadd float %mul, %b
92 store float %madmk, float addrspace(1)* %out.gep, align 4
96 ; GCN-LABEL: {{^}}v_s_madmk_f32:
97 ; GCN: s_load_dword [[SREG:s[0-9]+]]
98 ; GCN: buffer_load_dword [[VREG1:v[0-9]+]]
99 ; GCN: v_mov_b32_e32 [[VREG2:v[0-9]+]], [[SREG]]
100 ; GCN: v_mac_f32_e32 [[VREG2]], 0x41200000, [[VREG1]]
102 define amdgpu_kernel void @v_s_madmk_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in, float %b) nounwind {
103 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
104 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
105 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
106 %a = load float, float addrspace(1)* %gep.0, align 4
108 %mul = fmul float %a, 10.0
109 %madmk = fadd float %mul, %b
110 store float %madmk, float addrspace(1)* %out.gep, align 4
114 ; GCN-LABEL: {{^}}scalar_vector_madmk_f32:
115 ; GCN-NOT: v_madmk_f32
118 define amdgpu_kernel void @scalar_vector_madmk_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in, float %a) nounwind {
119 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
120 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
121 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
122 %b = load float, float addrspace(1)* %gep.0, align 4
124 %mul = fmul float %a, 10.0
125 %madmk = fadd float %mul, %b
126 store float %madmk, float addrspace(1)* %out.gep, align 4
130 ; GCN-LABEL: {{^}}no_madmk_src0_modifier_f32:
131 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
132 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
133 ; GCN-DAG: s_mov_b32 [[SK:s[0-9]+]], 0x41200000
134 ; GCN: v_mad_f32 {{v[0-9]+}}, |[[VA]]|, [[SK]], [[VB]]
135 define amdgpu_kernel void @no_madmk_src0_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
136 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
137 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
138 %gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
139 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
141 %a = load volatile float, float addrspace(1)* %gep.0, align 4
142 %b = load volatile float, float addrspace(1)* %gep.1, align 4
144 %a.fabs = call float @llvm.fabs.f32(float %a) nounwind readnone
146 %mul = fmul float %a.fabs, 10.0
147 %madmk = fadd float %mul, %b
148 store float %madmk, float addrspace(1)* %out.gep, align 4
152 ; GCN-LABEL: {{^}}no_madmk_src2_modifier_f32:
153 ; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
154 ; GCN-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
155 ; GCN: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, {{[sv][0-9]+}}, |{{v[0-9]+}}|
156 define amdgpu_kernel void @no_madmk_src2_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
157 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
158 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
159 %gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
160 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
162 %a = load volatile float, float addrspace(1)* %gep.0, align 4
163 %b = load volatile float, float addrspace(1)* %gep.1, align 4
165 %b.fabs = call float @llvm.fabs.f32(float %b) nounwind readnone
167 %mul = fmul float %a, 10.0
168 %madmk = fadd float %mul, %b.fabs
169 store float %madmk, float addrspace(1)* %out.gep, align 4
173 ; GCN-LABEL: {{^}}madmk_add_inline_imm_f32:
174 ; GCN: buffer_load_dword [[A:v[0-9]+]]
175 ; GCN: s_mov_b32 [[SK:s[0-9]+]], 0x41200000
176 ; GCN: v_mad_f32 {{v[0-9]+}}, [[A]], [[SK]], 2.0
177 define amdgpu_kernel void @madmk_add_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
178 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
179 %gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
180 %out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
182 %a = load float, float addrspace(1)* %gep.0, align 4
184 %mul = fmul float %a, 10.0
185 %madmk = fadd float %mul, 2.0
186 store float %madmk, float 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() nounwind {
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 #1 = { nounwind readnone }