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//===-- MemorySizeDistributions ---------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// Memory functions operate on buffers of certain sizes. This file provides
// probability distributions observed at runtime for a set of applications.
// These distributions are used to benchmark and compare memory functions
// implementations.
#include <llvm/ADT/ArrayRef.h>
#include <llvm/ADT/StringRef.h>
namespace llvm {
namespace libc_benchmarks {
/// A simple POD exposing caracteristics of a memory function size
/// distributions. The underlying data is immutable.
struct MemorySizeDistribution {
StringRef Name; // The name of the distribution.
ArrayRef<double> Probabilities; // Size indexed array of probabilities.
/// Returns a list of memmove size distributions.
ArrayRef<MemorySizeDistribution> getMemmoveSizeDistributions();
/// Returns a list of memcpy size distributions.
ArrayRef<MemorySizeDistribution> getMemcpySizeDistributions();
/// Returns a list of memset size distributions.
ArrayRef<MemorySizeDistribution> getMemsetSizeDistributions();
/// Returns a list of memcmp size distributions.
ArrayRef<MemorySizeDistribution> getMemcmpSizeDistributions();
/// Returns the first MemorySizeDistribution from Distributions with the
/// specified Name.
getDistributionOrDie(ArrayRef<MemorySizeDistribution> Distributions,
StringRef Name);
} // namespace libc_benchmarks
} // namespace llvm