19#ifndef HWY_HIGHWAY_INCLUDED
20#define HWY_HIGHWAY_INCLUDED
41#define HWY_FULL1(T) hwy::HWY_NAMESPACE::ScalableTag<T>
42#define HWY_FULL2(T, LMUL) \
43 hwy::HWY_NAMESPACE::ScalableTag<T, CeilLog2(HWY_MAX(0, LMUL))>
44#define HWY_3TH_ARG(arg1, arg2, arg3, ...) arg3
46#define HWY_FULL_RECOMPOSER(args_with_paren) HWY_3TH_ARG args_with_paren
48#define HWY_CHOOSE_FULL(...) \
49 HWY_FULL_RECOMPOSER((__VA_ARGS__, HWY_FULL2, HWY_FULL1, ))
50#define HWY_FULL(...) HWY_CHOOSE_FULL(__VA_ARGS__())(__VA_ARGS__)
53#define HWY_CAPPED(T, MAX_N) hwy::HWY_NAMESPACE::CappedTag<T, MAX_N>
69#if HWY_STATIC_TARGET == HWY_SCALAR
70#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SCALAR::FUNC_NAME
71#elif HWY_STATIC_TARGET == HWY_EMU128
72#define HWY_STATIC_DISPATCH(FUNC_NAME) N_EMU128::FUNC_NAME
73#elif HWY_STATIC_TARGET == HWY_RVV
74#define HWY_STATIC_DISPATCH(FUNC_NAME) N_RVV::FUNC_NAME
75#elif HWY_STATIC_TARGET == HWY_WASM_EMU256
76#define HWY_STATIC_DISPATCH(FUNC_NAME) N_WASM2::FUNC_NAME
77#elif HWY_STATIC_TARGET == HWY_WASM
78#define HWY_STATIC_DISPATCH(FUNC_NAME) N_WASM::FUNC_NAME
79#elif HWY_STATIC_TARGET == HWY_NEON
80#define HWY_STATIC_DISPATCH(FUNC_NAME) N_NEON::FUNC_NAME
81#elif HWY_STATIC_TARGET == HWY_SVE
82#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SVE::FUNC_NAME
83#elif HWY_STATIC_TARGET == HWY_SVE2
84#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SVE2::FUNC_NAME
85#elif HWY_STATIC_TARGET == HWY_SVE_256
86#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SVE_256::FUNC_NAME
87#elif HWY_STATIC_TARGET == HWY_SVE2_128
88#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SVE2_128::FUNC_NAME
89#elif HWY_STATIC_TARGET == HWY_PPC8
90#define HWY_STATIC_DISPATCH(FUNC_NAME) N_PPC8::FUNC_NAME
91#elif HWY_STATIC_TARGET == HWY_SSSE3
92#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SSSE3::FUNC_NAME
93#elif HWY_STATIC_TARGET == HWY_SSE4
94#define HWY_STATIC_DISPATCH(FUNC_NAME) N_SSE4::FUNC_NAME
95#elif HWY_STATIC_TARGET == HWY_AVX2
96#define HWY_STATIC_DISPATCH(FUNC_NAME) N_AVX2::FUNC_NAME
97#elif HWY_STATIC_TARGET == HWY_AVX3
98#define HWY_STATIC_DISPATCH(FUNC_NAME) N_AVX3::FUNC_NAME
99#elif HWY_STATIC_TARGET == HWY_AVX3_DL
100#define HWY_STATIC_DISPATCH(FUNC_NAME) N_AVX3_DL::FUNC_NAME
105template <
typename RetType,
typename... Args>
117 template <FunctionType* const table[]>
122 return (table[chosen_target.
GetIndex()])(args...);
128template <
typename RetType,
typename... Args>
135#if HWY_TARGETS & HWY_EMU128
136#define HWY_CHOOSE_FALLBACK(FUNC_NAME) &N_EMU128::FUNC_NAME
137#elif HWY_TARGETS & HWY_SCALAR
138#define HWY_CHOOSE_FALLBACK(FUNC_NAME) &N_SCALAR::FUNC_NAME
142#define HWY_CHOOSE_FALLBACK(FUNC_NAME) &HWY_STATIC_DISPATCH(FUNC_NAME)
145#if HWY_TARGETS & HWY_WASM_EMU256
146#define HWY_CHOOSE_WASM2(FUNC_NAME) &N_WASM2::FUNC_NAME
148#define HWY_CHOOSE_WASM2(FUNC_NAME) nullptr
151#if HWY_TARGETS & HWY_WASM
152#define HWY_CHOOSE_WASM(FUNC_NAME) &N_WASM::FUNC_NAME
154#define HWY_CHOOSE_WASM(FUNC_NAME) nullptr
157#if HWY_TARGETS & HWY_RVV
158#define HWY_CHOOSE_RVV(FUNC_NAME) &N_RVV::FUNC_NAME
160#define HWY_CHOOSE_RVV(FUNC_NAME) nullptr
163#if HWY_TARGETS & HWY_NEON
164#define HWY_CHOOSE_NEON(FUNC_NAME) &N_NEON::FUNC_NAME
166#define HWY_CHOOSE_NEON(FUNC_NAME) nullptr
169#if HWY_TARGETS & HWY_SVE
170#define HWY_CHOOSE_SVE(FUNC_NAME) &N_SVE::FUNC_NAME
172#define HWY_CHOOSE_SVE(FUNC_NAME) nullptr
175#if HWY_TARGETS & HWY_SVE2
176#define HWY_CHOOSE_SVE2(FUNC_NAME) &N_SVE2::FUNC_NAME
178#define HWY_CHOOSE_SVE2(FUNC_NAME) nullptr
181#if HWY_TARGETS & HWY_SVE_256
182#define HWY_CHOOSE_SVE_256(FUNC_NAME) &N_SVE_256::FUNC_NAME
184#define HWY_CHOOSE_SVE_256(FUNC_NAME) nullptr
187#if HWY_TARGETS & HWY_SVE2_128
188#define HWY_CHOOSE_SVE2_128(FUNC_NAME) &N_SVE2_128::FUNC_NAME
190#define HWY_CHOOSE_SVE2_128(FUNC_NAME) nullptr
193#if HWY_TARGETS & HWY_PPC8
194#define HWY_CHOOSE_PCC8(FUNC_NAME) &N_PPC8::FUNC_NAME
196#define HWY_CHOOSE_PPC8(FUNC_NAME) nullptr
199#if HWY_TARGETS & HWY_SSSE3
200#define HWY_CHOOSE_SSSE3(FUNC_NAME) &N_SSSE3::FUNC_NAME
202#define HWY_CHOOSE_SSSE3(FUNC_NAME) nullptr
205#if HWY_TARGETS & HWY_SSE4
206#define HWY_CHOOSE_SSE4(FUNC_NAME) &N_SSE4::FUNC_NAME
208#define HWY_CHOOSE_SSE4(FUNC_NAME) nullptr
211#if HWY_TARGETS & HWY_AVX2
212#define HWY_CHOOSE_AVX2(FUNC_NAME) &N_AVX2::FUNC_NAME
214#define HWY_CHOOSE_AVX2(FUNC_NAME) nullptr
217#if HWY_TARGETS & HWY_AVX3
218#define HWY_CHOOSE_AVX3(FUNC_NAME) &N_AVX3::FUNC_NAME
220#define HWY_CHOOSE_AVX3(FUNC_NAME) nullptr
223#if HWY_TARGETS & HWY_AVX3_DL
224#define HWY_CHOOSE_AVX3_DL(FUNC_NAME) &N_AVX3_DL::FUNC_NAME
226#define HWY_CHOOSE_AVX3_DL(FUNC_NAME) nullptr
229#define HWY_DISPATCH_TABLE(FUNC_NAME) \
230 HWY_CONCAT(FUNC_NAME, HighwayDispatchTable)
261#if HWY_IDE || ((HWY_TARGETS & (HWY_TARGETS - 1)) == 0)
267#define HWY_EXPORT(FUNC_NAME) \
268 HWY_MAYBE_UNUSED static decltype(&HWY_STATIC_DISPATCH(FUNC_NAME)) const \
269 HWY_DISPATCH_TABLE(FUNC_NAME)[1] = {&HWY_STATIC_DISPATCH(FUNC_NAME)}
270#define HWY_DYNAMIC_DISPATCH(FUNC_NAME) HWY_STATIC_DISPATCH(FUNC_NAME)
276#define HWY_EXPORT(FUNC_NAME) \
277 static decltype(&HWY_STATIC_DISPATCH(FUNC_NAME)) const HWY_DISPATCH_TABLE( \
278 FUNC_NAME)[HWY_MAX_DYNAMIC_TARGETS + 2] = { \
281 &decltype(hwy::FunctionCacheFactory(&HWY_STATIC_DISPATCH( \
282 FUNC_NAME)))::ChooseAndCall<HWY_DISPATCH_TABLE(FUNC_NAME)>, \
283 HWY_CHOOSE_TARGET_LIST(FUNC_NAME), \
284 HWY_CHOOSE_FALLBACK(FUNC_NAME), \
286#define HWY_DYNAMIC_DISPATCH(FUNC_NAME) \
287 (*(HWY_DISPATCH_TABLE(FUNC_NAME)[hwy::GetChosenTarget().GetIndex()]))
292#define HWY_CAP_INTEGER64 HWY_HAVE_INTEGER64
293#define HWY_CAP_FLOAT16 HWY_HAVE_FLOAT16
294#define HWY_CAP_FLOAT64 HWY_HAVE_FLOAT64
305#if defined(HWY_HIGHWAY_PER_TARGET) == defined(HWY_TARGET_TOGGLE)
306#ifdef HWY_HIGHWAY_PER_TARGET
307#undef HWY_HIGHWAY_PER_TARGET
309#define HWY_HIGHWAY_PER_TARGET
313#if HWY_TARGET == HWY_SSSE3 || HWY_TARGET == HWY_SSE4
315#elif HWY_TARGET == HWY_AVX2
317#elif HWY_TARGET == HWY_AVX3 || HWY_TARGET == HWY_AVX3_DL
319#elif HWY_TARGET == HWY_PPC8
320#error "PPC is not yet supported"
321#elif HWY_TARGET == HWY_NEON
323#elif HWY_TARGET == HWY_SVE || HWY_TARGET == HWY_SVE2 || \
324 HWY_TARGET == HWY_SVE_256 || HWY_TARGET == HWY_SVE2_128
326#elif HWY_TARGET == HWY_WASM_EMU256
328#elif HWY_TARGET == HWY_WASM
330#elif HWY_TARGET == HWY_RVV
332#elif HWY_TARGET == HWY_EMU128
334#elif HWY_TARGET == HWY_SCALAR
337#pragma message("HWY_TARGET does not match any known target")
Definition: aligned_allocator.h:27
FunctionCache< RetType, Args... > FunctionCacheFactory(RetType(*)(Args...))
Definition: highway.h:129
HWY_DLLEXPORT ChosenTarget & GetChosenTarget()
HWY_DLLEXPORT uint32_t SupportedTargets()
Definition: targets.h:242
size_t HWY_INLINE GetIndex() const
Definition: targets.h:265
void Update(uint32_t targets)
Definition: targets.h:246
Definition: highway.h:106
RetType() FunctionType(Args...)
Definition: highway.h:108
static RetType ChooseAndCall(Args... args)
Definition: highway.h:118