s2n_pq_asm.h 1.1 KB

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  1. /*
  2. * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License").
  5. * You may not use this file except in compliance with the License.
  6. * A copy of the License is located at
  7. *
  8. * http://aws.amazon.com/apache2.0
  9. *
  10. * or in the "license" file accompanying this file. This file is distributed
  11. * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
  12. * express or implied. See the License for the specific language governing
  13. * permissions and limitations under the License.
  14. */
  15. #pragma once
  16. #ifndef S2N_BLOCK_NONPORTABLE_OPTIMIZATIONS
  17. #define S2N_BLOCK_NONPORTABLE_OPTIMIZATIONS 0
  18. #endif
  19. #define S2N_ANY_NONPORTABLE_OPTIMIZATIONS_ENABLED (__AVX__ || __AVX2__ || __BMI2__)
  20. #if S2N_BLOCK_NONPORTABLE_OPTIMIZATIONS && S2N_ANY_NONPORTABLE_OPTIMIZATIONS_ENABLED
  21. #define S2N_ENSURE_PORTABLE_OPTIMIZATIONS \
  22. #error "Compiling portable code with non-portable assembly optimizations. This can result in runtime crashes if artifacts are deployed to older CPU's without these CPU instructions"
  23. #else
  24. #define S2N_ENSURE_PORTABLE_OPTIMIZATIONS
  25. #endif