1 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI %s
2 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,GFX89 %s
3 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9,GFX89 %s
5 ; DAGCombiner will transform:
6 ; (fabs (f16 bitcast (i16 a))) => (f16 bitcast (and (i16 a), 0x7FFFFFFF))
7 ; unless isFabsFree returns true
9 ; GCN-LABEL: {{^}}s_fabs_free_f16:
10 ; GCN: s_load_dword [[VAL:s[0-9]+]]
11 ; GCN: s_and_b32 [[RESULT:s[0-9]+]], [[VAL]], 0x7fff
12 ; GCN: v_mov_b32_e32 [[V_RESULT:v[0-9]+]], [[RESULT]]
13 ; GCN: {{flat|global}}_store_short v{{\[[0-9]+:[0-9]+\]}}, [[V_RESULT]]
14 define amdgpu_kernel void @s_fabs_free_f16(half addrspace(1)* %out, i16 %in) {
15 %bc= bitcast i16 %in to half
16 %fabs = call half @llvm.fabs.f16(half %bc)
17 store half %fabs, half addrspace(1)* %out
21 ; GCN-LABEL: {{^}}s_fabs_f16:
22 ; GCN: s_load_dword [[VAL:s[0-9]+]]
23 ; GCN: s_and_b32 [[RESULT:s[0-9]+]], [[VAL]], 0x7fff
24 ; GCN: v_mov_b32_e32 [[V_RESULT:v[0-9]+]], [[RESULT]]
25 ; GCN: {{flat|global}}_store_short v{{\[[0-9]+:[0-9]+\]}}, [[V_RESULT]]
26 define amdgpu_kernel void @s_fabs_f16(half addrspace(1)* %out, half %in) {
27 %fabs = call half @llvm.fabs.f16(half %in)
28 store half %fabs, half addrspace(1)* %out
32 ; GCN-LABEL: {{^}}s_fabs_v2f16:
33 ; GCN: s_load_dword [[VAL:s[0-9]+]]
34 ; GCN: s_and_b32 s{{[0-9]+}}, [[VAL]], 0x7fff7fff
35 define amdgpu_kernel void @s_fabs_v2f16(<2 x half> addrspace(1)* %out, <2 x half> %in) {
36 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %in)
37 store <2 x half> %fabs, <2 x half> addrspace(1)* %out
41 ; GCN-LABEL: {{^}}s_fabs_v4f16:
42 ; CI: s_load_dwordx2 s{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]{{\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x2
43 ; GFX89: s_load_dwordx2 s{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]{{\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x8
45 ; GCN: s_mov_b32 [[MASK:s[0-9]+]], 0x7fff7fff
46 ; GCN-DAG: s_and_b32 s{{[0-9]+}}, s[[LO]], [[MASK]]
47 ; GCN-DAG: s_and_b32 s{{[0-9]+}}, s[[HI]], [[MASK]]
48 ; GCN: {{flat|global}}_store_dwordx2
49 define amdgpu_kernel void @s_fabs_v4f16(<4 x half> addrspace(1)* %out, <4 x half> %in) {
50 %fabs = call <4 x half> @llvm.fabs.v4f16(<4 x half> %in)
51 store <4 x half> %fabs, <4 x half> addrspace(1)* %out
55 ; GCN-LABEL: {{^}}fabs_fold_f16:
56 ; GCN: s_load_dword [[IN0:s[0-9]+]]
57 ; GCN-DAG: s_lshr_b32 [[IN1:s[0-9]+]], [[IN0]], 16
59 ; CI-DAG: v_cvt_f32_f16_e64 [[CVT0:v[0-9]+]], |[[IN0]]|
60 ; CI-DAG: v_cvt_f32_f16_e32 [[ABS_CVT1:v[0-9]+]], [[IN1]]
61 ; CI-DAG: v_mul_f32_e32 [[RESULT:v[0-9]+]], [[CVT0]], [[ABS_CVT1]]
62 ; CI-DAG: v_cvt_f16_f32_e32 [[CVTRESULT:v[0-9]+]], [[RESULT]]
63 ; CI: flat_store_short v{{\[[0-9]+:[0-9]+\]}}, [[CVTRESULT]]
66 ; GFX89: v_mov_b32_e32 [[V_IN1:v[0-9]+]], [[IN1]]
67 ; GFX89: v_mul_f16_e64 [[RESULT:v[0-9]+]], |[[IN0]]|, [[V_IN1]]
68 ; GFX89: {{flat|global}}_store_short v{{\[[0-9]+:[0-9]+\]}}, [[RESULT]]
69 define amdgpu_kernel void @fabs_fold_f16(half addrspace(1)* %out, half %in0, half %in1) {
70 %fabs = call half @llvm.fabs.f16(half %in0)
71 %fmul = fmul half %fabs, %in1
72 store half %fmul, half addrspace(1)* %out
76 ; GCN-LABEL: {{^}}v_fabs_v2f16:
77 ; GCN: {{flat|global}}_load_dword [[VAL:v[0-9]+]]
78 ; GCN: v_and_b32_e32 v{{[0-9]+}}, 0x7fff7fff, [[VAL]]
79 define amdgpu_kernel void @v_fabs_v2f16(<2 x half> addrspace(1)* %out, <2 x half> addrspace(1)* %in) #0 {
80 %tid = call i32 @llvm.amdgcn.workitem.id.x()
81 %gep.in = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
82 %gep.out = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
83 %val = load <2 x half>, <2 x half> addrspace(1)* %gep.in, align 2
84 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
85 store <2 x half> %fabs, <2 x half> addrspace(1)* %gep.out
89 ; GCN-LABEL: {{^}}fabs_free_v2f16:
90 ; GCN: s_load_dword [[VAL:s[0-9]+]]
91 ; GCN: s_and_b32 s{{[0-9]+}}, [[VAL]], 0x7fff7fff
92 define amdgpu_kernel void @fabs_free_v2f16(<2 x half> addrspace(1)* %out, i32 %in) #0 {
93 %bc = bitcast i32 %in to <2 x half>
94 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %bc)
95 store <2 x half> %fabs, <2 x half> addrspace(1)* %out
99 ; FIXME: Should do fabs after conversion to avoid converting multiple
100 ; times in this particular case.
102 ; GCN-LABEL: {{^}}v_fabs_fold_self_v2f16:
103 ; GCN: {{flat|global}}_load_dword [[VAL:v[0-9]+]]
105 ; CI: v_lshrrev_b32_e32 [[VREG:v[0-9]+]], 16, v{{[0-9]+}}
106 ; CI: v_cvt_f32_f16_e32 [[NORM:v[0-9]+]], [[VREG]]
107 ; CI: v_cvt_f32_f16_e64 [[ABS:v[0-9]+]], {{\|}}[[VREG]]{{\|}}
108 ; CI: v_mul_f32_e32 v{{[0-9]+}}, [[ABS]], [[NORM]]
110 ; CI: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}
113 ; VI: v_mul_f16_sdwa v{{[0-9]+}}, |v{{[0-9]+}}|, v{{[0-9]+}} dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
114 ; VI: v_mul_f16_e64 v{{[0-9]+}}, |v{{[0-9]+}}|, v{{[0-9]+}}
116 ; GFX9: v_and_b32_e32 [[FABS:v[0-9]+]], 0x7fff7fff, [[VAL]]
117 ; GFX9: v_pk_mul_f16 v{{[0-9]+}}, [[FABS]], v{{[0-9]+$}}
118 define amdgpu_kernel void @v_fabs_fold_self_v2f16(<2 x half> addrspace(1)* %out, <2 x half> addrspace(1)* %in) #0 {
119 %tid = call i32 @llvm.amdgcn.workitem.id.x()
120 %gep = getelementptr <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
121 %val = load <2 x half>, <2 x half> addrspace(1)* %gep
122 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
123 %fmul = fmul <2 x half> %fabs, %val
124 store <2 x half> %fmul, <2 x half> addrspace(1)* %out
128 ; GCN-LABEL: {{^}}v_fabs_fold_v2f16:
129 ; GCN: {{flat|global}}_load_dword [[VAL:v[0-9]+]]
131 ; CI: s_lshr_b32 s{{[0-9]+}}, s{{[0-9]+}}, 16
132 ; CI: v_cvt_f32_f16_e32
133 ; CI: v_cvt_f32_f16_e32
134 ; CI: v_lshrrev_b32_e32 v{{[0-9]+}}, 16, v{{[0-9]+}}
135 ; CI: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}
137 ; CI: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}
140 ; VI: v_mul_f16_sdwa v{{[0-9]+}}, |v{{[0-9]+}}|, v{{[0-9]+}} dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
141 ; VI: v_mul_f16_e64 v{{[0-9]+}}, |v{{[0-9]+}}|, s{{[0-9]+}}
143 ; GFX9: v_and_b32_e32 [[FABS:v[0-9]+]], 0x7fff7fff, [[VAL]]
144 ; GFX9: v_pk_mul_f16 v{{[0-9]+}}, [[FABS]], s{{[0-9]+$}}
145 define amdgpu_kernel void @v_fabs_fold_v2f16(<2 x half> addrspace(1)* %out, <2 x half> addrspace(1)* %in, i32 %other.val) #0 {
146 %tid = call i32 @llvm.amdgcn.workitem.id.x()
147 %gep = getelementptr <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
148 %val = load <2 x half>, <2 x half> addrspace(1)* %gep
149 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
150 %other.val.cvt = bitcast i32 %other.val to <2 x half>
151 %fmul = fmul <2 x half> %fabs, %other.val.cvt
152 store <2 x half> %fmul, <2 x half> addrspace(1)* %out
156 ; GCN-LABEL: {{^}}v_extract_fabs_fold_v2f16:
157 ; GCN-DAG: {{flat|global}}_load_dword [[VAL:v[0-9]+]]
158 ; CI-DAG: v_mul_f32_e32 v{{[0-9]+}}, 4.0, v{{[0-9]+}}
159 ; CI-DAG: v_add_f32_e32 v{{[0-9]+}}, 2.0, v{{[0-9]+}}
161 ; GFX89-DAG: v_mul_f16_e64 v{{[0-9]+}}, |[[VAL]]|, 4.0
162 ; GFX89-DAG: v_mov_b32_e32 [[CONST2:v[0-9]+]], 0x4000
163 ; GFX89-DAG: v_add_f16_sdwa v{{[0-9]+}}, |[[VAL]]|, [[CONST2]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
164 define amdgpu_kernel void @v_extract_fabs_fold_v2f16(<2 x half> addrspace(1)* %in) #0 {
165 %tid = call i32 @llvm.amdgcn.workitem.id.x()
166 %gep.in = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
167 %val = load <2 x half>, <2 x half> addrspace(1)* %gep.in
168 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
169 %elt0 = extractelement <2 x half> %fabs, i32 0
170 %elt1 = extractelement <2 x half> %fabs, i32 1
172 %fmul0 = fmul half %elt0, 4.0
173 %fadd1 = fadd half %elt1, 2.0
174 store volatile half %fmul0, half addrspace(1)* undef
175 store volatile half %fadd1, half addrspace(1)* undef
179 ; GCN-LABEL: {{^}}v_extract_fabs_no_fold_v2f16:
180 ; GCN: {{flat|global}}_load_dword [[VAL:v[0-9]+]]
181 ; GCN: v_and_b32_e32 [[AND:v[0-9]+]], 0x7fff7fff, [[VAL]]
184 ; VI: v_bfe_u32 v{{[0-9]+}}, v{{[0-9]+}}, 16, 15
185 ; VI: flat_store_short
187 ; GFX9: global_store_short_d16_hi v{{\[[0-9]+:[0-9]+\]}}, [[AND]], off
188 define amdgpu_kernel void @v_extract_fabs_no_fold_v2f16(<2 x half> addrspace(1)* %in) #0 {
189 %tid = call i32 @llvm.amdgcn.workitem.id.x()
190 %gep.in = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid
191 %val = load <2 x half>, <2 x half> addrspace(1)* %gep.in
192 %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
193 %elt0 = extractelement <2 x half> %fabs, i32 0
194 %elt1 = extractelement <2 x half> %fabs, i32 1
195 store volatile half %elt0, half addrspace(1)* undef
196 store volatile half %elt1, half addrspace(1)* undef
200 declare half @llvm.fabs.f16(half) #1
201 declare <2 x half> @llvm.fabs.v2f16(<2 x half>) #1
202 declare <4 x half> @llvm.fabs.v4f16(<4 x half>) #1
203 declare i32 @llvm.amdgcn.workitem.id.x() #1
205 attributes #0 = { nounwind }
206 attributes #1 = { nounwind readnone }