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Diffstat (limited to 'third_party/highway/hwy/foreach_target.h')
| -rw-r--r-- | third_party/highway/hwy/foreach_target.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/third_party/highway/hwy/foreach_target.h b/third_party/highway/hwy/foreach_target.h new file mode 100644 index 0000000000..3929905ca2 --- /dev/null +++ b/third_party/highway/hwy/foreach_target.h @@ -0,0 +1,261 @@ +// Copyright 2020 Google LLC +// SPDX-License-Identifier: Apache-2.0 +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#ifndef HIGHWAY_HWY_FOREACH_TARGET_H_ +#define HIGHWAY_HWY_FOREACH_TARGET_H_ + +// Re-includes the translation unit zero or more times to compile for any +// targets except HWY_STATIC_TARGET. Defines unique HWY_TARGET each time so that +// highway.h defines the corresponding macro/namespace. + +#include "hwy/detect_targets.h" + +// *_inl.h may include other headers, which requires include guards to prevent +// repeated inclusion. The guards must be reset after compiling each target, so +// the header is again visible. This is done by flipping HWY_TARGET_TOGGLE, +// defining it if undefined and vice versa. This macro is initially undefined +// so that IDEs don't gray out the contents of each header. +#ifdef HWY_TARGET_TOGGLE +#error "This macro must not be defined outside foreach_target.h" +#endif + +#ifdef HWY_HIGHWAY_INCLUDED // highway.h include guard +// Trigger fixup at the bottom of this header. +#define HWY_ALREADY_INCLUDED + +// The next highway.h must re-include set_macros-inl.h because the first +// highway.h chose the static target instead of what we will set below. +#undef HWY_SET_MACROS_PER_TARGET +#endif + +// Disable HWY_EXPORT in user code until we have generated all targets. Note +// that a subsequent highway.h will not override this definition. +#undef HWY_ONCE +#define HWY_ONCE (0 || HWY_IDE) + +// Avoid warnings on #include HWY_TARGET_INCLUDE by hiding them from the IDE; +// also skip if only 1 target defined (no re-inclusion will be necessary). +#if !HWY_IDE && (HWY_TARGETS != HWY_STATIC_TARGET) + +#if !defined(HWY_TARGET_INCLUDE) +#error ">1 target enabled => define HWY_TARGET_INCLUDE before foreach_target.h" +#endif + +#if (HWY_TARGETS & HWY_EMU128) && (HWY_STATIC_TARGET != HWY_EMU128) +#undef HWY_TARGET +#define HWY_TARGET HWY_EMU128 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SCALAR) && (HWY_STATIC_TARGET != HWY_SCALAR) +#undef HWY_TARGET +#define HWY_TARGET HWY_SCALAR +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_NEON) && (HWY_STATIC_TARGET != HWY_NEON) +#undef HWY_TARGET +#define HWY_TARGET HWY_NEON +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_RVV) && (HWY_STATIC_TARGET != HWY_RVV) +#undef HWY_TARGET +#define HWY_TARGET HWY_RVV +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SVE) && (HWY_STATIC_TARGET != HWY_SVE) +#undef HWY_TARGET +#define HWY_TARGET HWY_SVE +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SVE2) && (HWY_STATIC_TARGET != HWY_SVE2) +#undef HWY_TARGET +#define HWY_TARGET HWY_SVE2 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SVE_256) && (HWY_STATIC_TARGET != HWY_SVE_256) +#undef HWY_TARGET +#define HWY_TARGET HWY_SVE_256 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SVE2_128) && (HWY_STATIC_TARGET != HWY_SVE2_128) +#undef HWY_TARGET +#define HWY_TARGET HWY_SVE2_128 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SSSE3) && (HWY_STATIC_TARGET != HWY_SSSE3) +#undef HWY_TARGET +#define HWY_TARGET HWY_SSSE3 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_SSE4) && (HWY_STATIC_TARGET != HWY_SSE4) +#undef HWY_TARGET +#define HWY_TARGET HWY_SSE4 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_AVX2) && (HWY_STATIC_TARGET != HWY_AVX2) +#undef HWY_TARGET +#define HWY_TARGET HWY_AVX2 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_AVX3) && (HWY_STATIC_TARGET != HWY_AVX3) +#undef HWY_TARGET +#define HWY_TARGET HWY_AVX3 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_AVX3_DL) && (HWY_STATIC_TARGET != HWY_AVX3_DL) +#undef HWY_TARGET +#define HWY_TARGET HWY_AVX3_DL +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_WASM_EMU256) && (HWY_STATIC_TARGET != HWY_WASM_EMU256) +#undef HWY_TARGET +#define HWY_TARGET HWY_WASM_EMU256 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_WASM) && (HWY_STATIC_TARGET != HWY_WASM) +#undef HWY_TARGET +#define HWY_TARGET HWY_WASM +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#if (HWY_TARGETS & HWY_PPC8) && (HWY_STATIC_TARGET != HWY_PPC8) +#undef HWY_TARGET +#define HWY_TARGET HWY_PPC8 +#include HWY_TARGET_INCLUDE +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif +#endif + +#endif // !HWY_IDE && (HWY_TARGETS != HWY_STATIC_TARGET) + +// Now that all but the static target have been generated, re-enable HWY_EXPORT. +#undef HWY_ONCE +#define HWY_ONCE 1 + +// If we re-include once per enabled target, the translation unit's +// implementation would have to be skipped via #if to avoid redefining symbols. +// We instead skip the re-include for HWY_STATIC_TARGET, and generate its +// implementation when resuming compilation of the translation unit. +#undef HWY_TARGET +#define HWY_TARGET HWY_STATIC_TARGET + +#ifdef HWY_ALREADY_INCLUDED +// Revert the previous toggle to prevent redefinitions for the static target. +#ifdef HWY_TARGET_TOGGLE +#undef HWY_TARGET_TOGGLE +#else +#define HWY_TARGET_TOGGLE +#endif + +// Force re-inclusion of set_macros-inl.h now that HWY_TARGET is restored. +#ifdef HWY_SET_MACROS_PER_TARGET +#undef HWY_SET_MACROS_PER_TARGET +#else +#define HWY_SET_MACROS_PER_TARGET +#endif +#endif + +#endif // HIGHWAY_HWY_FOREACH_TARGET_H_ |