| // Copyright 2021 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_PREFETCH_IMPL_H_ |
| #define QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_PREFETCH_IMPL_H_ |
| |
| #if defined(_MSC_VER) |
| #include <intrin.h> |
| #endif |
| |
| namespace quiche { |
| |
| inline void QuichePrefetchT0Impl(const void* addr) { |
| #if !defined(DISABLE_BUILTIN_PREFETCH) |
| #if defined(__GNUC__) || (defined(_M_ARM64) && defined(__clang__)) |
| __builtin_prefetch(addr, 0, 3); |
| #elif defined(_MSC_VER) |
| _mm_prefetch(reinterpret_cast<const char*>(addr), _MM_HINT_T0); |
| #else |
| (void*)addr; |
| #endif |
| #endif // !defined(DISABLE_BUILTIN_PREFETCH) |
| } |
| |
| } // namespace quiche |
| |
| #endif // QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_PREFETCH_IMPL_H_ |
