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; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=GCN -check-prefix=CIVI %s
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=GFX89 -check-prefix=GCN -check-prefix=CIVI %s
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=gfx901 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX89 -check-prefix=GFX9 -check-prefix=GCN %s
; GCN-LABEL: {{^}}fneg_fabs_fadd_f16:
; CI: v_cvt_f32_f16_e32
; CI: v_cvt_f32_f16_e64 [[CVT_ABS_X:v[0-9]+]], |v{{[0-9]+}}|
; CI: v_subrev_f32_e32 v{{[0-9]+}}, [[CVT_ABS_X]], v{{[0-9]+}}
; GFX89-NOT: _and
; GFX89: v_sub_f16_e64 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|
define void @fneg_fabs_fadd_f16(half addrspace(1)* %out, half %x, half %y) {
%fabs = call half @llvm.fabs.f16(half %x)
%fsub = fsub half -0.0, %fabs
%fadd = fadd half %y, %fsub
store half %fadd, half addrspace(1)* %out, align 2
ret void
}
; GCN-LABEL: {{^}}fneg_fabs_fmul_f16:
; CI-DAG: v_cvt_f32_f16_e32
; CI-DAG: v_cvt_f32_f16_e64 [[CVT_NEG_ABS_X:v[0-9]+]], -|{{v[0-9]+}}|
; CI: v_mul_f32_e32 {{v[0-9]+}}, [[CVT_NEG_ABS_X]], {{v[0-9]+}}
; CI: v_cvt_f16_f32_e32
; GFX89-NOT: _and
; GFX89: v_mul_f16_e64 [[MUL:v[0-9]+]], {{v[0-9]+}}, -|{{v[0-9]+}}|
; GFX89-NOT: [[MUL]]
; GFX89: flat_store_short v{{\[[0-9]+:[0-9]+\]}}, [[MUL]]
define void @fneg_fabs_fmul_f16(half addrspace(1)* %out, half %x, half %y) {
%fabs = call half @llvm.fabs.f16(half %x)
%fsub = fsub half -0.0, %fabs
%fmul = fmul half %y, %fsub
store half %fmul, half addrspace(1)* %out, align 2
ret void
}
; DAGCombiner will transform:
; (fabs (f16 bitcast (i16 a))) => (f16 bitcast (and (i16 a), 0x7FFFFFFF))
; unless isFabsFree returns true
; GCN-LABEL: {{^}}fneg_fabs_free_f16:
; GCN: v_or_b32_e32 v{{[0-9]+}}, 0x8000, v{{[0-9]+}}
define void @fneg_fabs_free_f16(half addrspace(1)* %out, i16 %in) {
%bc = bitcast i16 %in to half
%fabs = call half @llvm.fabs.f16(half %bc)
%fsub = fsub half -0.0, %fabs
store half %fsub, half addrspace(1)* %out
ret void
}
; GCN-LABEL: {{^}}fneg_fabs_f16:
; GCN: v_or_b32_e32 v{{[0-9]+}}, 0x8000, v{{[0-9]+}}
define void @fneg_fabs_f16(half addrspace(1)* %out, half %in) {
%fabs = call half @llvm.fabs.f16(half %in)
%fsub = fsub half -0.0, %fabs
store half %fsub, half addrspace(1)* %out, align 2
ret void
}
; GCN-LABEL: {{^}}v_fneg_fabs_f16:
; GCN: v_or_b32_e32 v{{[0-9]+}}, 0x8000, v{{[0-9]+}}
define void @v_fneg_fabs_f16(half addrspace(1)* %out, half addrspace(1)* %in) {
%val = load half, half addrspace(1)* %in, align 2
%fabs = call half @llvm.fabs.f16(half %val)
%fsub = fsub half -0.0, %fabs
store half %fsub, half addrspace(1)* %out, align 2
ret void
}
; FIXME: single bit op
; GCN-LABEL: {{^}}s_fneg_fabs_v2f16:
; CIVI: s_mov_b32 [[MASK:s[0-9]+]], 0x8000{{$}}
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; CIVI: flat_store_dword
; GFX9: s_or_b32 s{{[0-9]+}}, 0x80008000, s{{[0-9]+}}
define void @s_fneg_fabs_v2f16(<2 x half> addrspace(1)* %out, <2 x half> %in) {
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %in)
%fneg.fabs = fsub <2 x half> <half -0.0, half -0.0>, %fabs
store <2 x half> %fneg.fabs, <2 x half> addrspace(1)* %out
ret void
}
; GCN-LABEL: {{^}}fneg_fabs_v4f16:
; CIVI: s_mov_b32 [[MASK:s[0-9]+]], 0x8000{{$}}
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; CIVI: v_or_b32_e32 v{{[0-9]+}}, [[MASK]],
; GFX9: s_mov_b32 [[MASK:s[0-9]+]], 0x80008000
; GFX9: s_or_b32 s{{[0-9]+}}, [[MASK]], s{{[0-9]+}}
; GFX9: s_or_b32 s{{[0-9]+}}, [[MASK]], s{{[0-9]+}}
; GCN: flat_store_dwordx2
define void @fneg_fabs_v4f16(<4 x half> addrspace(1)* %out, <4 x half> %in) {
%fabs = call <4 x half> @llvm.fabs.v4f16(<4 x half> %in)
%fsub = fsub <4 x half> <half -0.0, half -0.0, half -0.0, half -0.0>, %fabs
store <4 x half> %fsub, <4 x half> addrspace(1)* %out
ret void
}
; GCN-LABEL: {{^}}fold_user_fneg_fabs_v2f16:
; CI: v_cvt_f32_f16_e64 v{{[0-9]+}}, -|v{{[0-9]+}}|
; CI: v_cvt_f32_f16_e64 v{{[0-9]+}}, -|v{{[0-9]+}}|
; CI: v_mul_f32_e32 v{{[0-9]+}}, 4.0, v{{[0-9]+}}
; CI: v_mul_f32_e32 v{{[0-9]+}}, 4.0, v{{[0-9]+}}
; VI: v_mul_f16_e64 v{{[0-9]+}}, -|v{{[0-9]+}}|, 4.0
; VI: v_mul_f16_e64 v{{[0-9]+}}, -|v{{[0-9]+}}|, 4.0
; GFX9: s_and_b32 [[ABS:s[0-9]+]], s{{[0-9]+}}, 0x7fff7fff
; GFX9: v_pk_mul_f16 v{{[0-9]+}}, [[ABS]], 4.0 neg_lo:[1,0] neg_hi:[1,0]
define void @fold_user_fneg_fabs_v2f16(<2 x half> addrspace(1)* %out, <2 x half> %in) #0 {
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %in)
%fneg.fabs = fsub <2 x half> <half -0.0, half -0.0>, %fabs
%mul = fmul <2 x half> %fneg.fabs, <half 4.0, half 4.0>
store <2 x half> %mul, <2 x half> addrspace(1)* %out
ret void
}
; GCN-LABEL: {{^}}s_fneg_multi_use_fabs_v2f16:
; GFX9: s_and_b32 [[ABS:s[0-9]+]], s{{[0-9]+}}, 0x7fff7fff
; GFX9: v_mov_b32_e32 [[VABS:v[0-9]+]], [[ABS]]
; GFX9: v_xor_b32_e32 [[NEG:v[0-9]+]], 0x80008000, [[VABS]]
define void @s_fneg_multi_use_fabs_v2f16(<2 x half> addrspace(1)* %out0, <2 x half> addrspace(1)* %out1, <2 x half> %in) {
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %in)
%fneg = fsub <2 x half> <half -0.0, half -0.0>, %fabs
store <2 x half> %fabs, <2 x half> addrspace(1)* %out0
store <2 x half> %fneg, <2 x half> addrspace(1)* %out1
ret void
}
; GCN-LABEL: {{^}}s_fneg_multi_use_fabs_foldable_neg_v2f16:
; GFX9: s_and_b32 [[ABS:s[0-9]+]], s{{[0-9]+}}, 0x7fff7fff
; GFX9: v_pk_mul_f16 v{{[0-9]+}}, [[ABS]], 4.0 neg_lo:[1,0] neg_hi:[1,0]
define void @s_fneg_multi_use_fabs_foldable_neg_v2f16(<2 x half> addrspace(1)* %out0, <2 x half> addrspace(1)* %out1, <2 x half> %in) {
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %in)
%fneg = fsub <2 x half> <half -0.0, half -0.0>, %fabs
%mul = fmul <2 x half> %fneg, <half 4.0, half 4.0>
store <2 x half> %fabs, <2 x half> addrspace(1)* %out0
store <2 x half> %mul, <2 x half> addrspace(1)* %out1
ret void
}
declare half @llvm.fabs.f16(half) #1
declare <2 x half> @llvm.fabs.v2f16(<2 x half>) #1
declare <4 x half> @llvm.fabs.v4f16(<4 x half>) #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
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