platform_util.hpp

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//===--------- platform_util.hpp - platform utilities ----------*- C++ -*--===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#pragma once
 
#include <cstdint>
 
#include <stddef.h> // for ::size_t
 
#include <sycl/detail/defines.hpp>
 
#ifdef _MSC_VER
// This feature is not supported in MSVC.
#define __builtin_expect(a, b) (a)
#endif
 
namespace sycl {
inline namespace _V1 {
namespace detail {
 
struct PlatformUtil {
  enum class TypeIndex : unsigned int {
    Char = 0,
    Short = 1,
    Int = 2,
    Long = 3,
    Float = 4,
    Double = 5,
    Half = 6
  };
 
  static uint32_t getNativeVectorWidth(TypeIndex Index);
 
  static uint32_t getMaxClockFrequency();
 
  static uint32_t getMemCacheLineSize();
 
  static uint64_t getMemCacheSize();
 
  static void prefetch(const char *Ptr, size_t NumBytes);
};
 
} // namespace detail
} // namespace _V1
} // namespace sycl