| /* Copyright 2019 Google LLC. All Rights Reserved. |
| |
| 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 RUY_RUY_DETECT_X86_H_ |
| #define RUY_RUY_DETECT_X86_H_ |
| |
| #include "ruy/platform.h" |
| |
| namespace ruy { |
| |
| #if RUY_PLATFORM(X86) |
| #if RUY_PLATFORM(X86_ENHANCEMENTS) |
| |
| // This also checks ABM support, which implies LZCNT and POPCNT. |
| bool DetectCpuSse42(); |
| bool DetectCpuAvx2(); |
| bool DetectCpuAvx512(); |
| // TODO(b/147376783): SSE 4.2 and AVX-VNNI support is incomplete / placeholder. |
| // Optimization is not finished. In particular the dimensions of the kernel |
| // blocks can be changed as desired. |
| // |
| // TODO(b/146646451): Introduce and activate. |
| inline bool DetectCpuAvxVnni() { return false; } |
| |
| #else // RUY_PLATFORM(X86_ENHANCEMENTS) |
| |
| inline bool DetectCpuSse42() { return false; } |
| inline bool DetectCpuAvx2() { return false; } |
| inline bool DetectCpuAvx512() { return false; } |
| inline bool DetectCpuAvxVnni() { return false; } |
| |
| #endif // !RUY_PLATFORM(X86_ENHANCEMENTS) |
| #endif // RUY_PLATFORM(X86) |
| |
| } // namespace ruy |
| |
| #endif // RUY_RUY_DETECT_X86_H_ |