llvm/llvm/include/llvm/IR/PseudoProbe.h

//===- PseudoProbe.h - Pseudo Probe IR Helpers ------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// Pseudo probe IR intrinsic and dwarf discriminator manipulation routines.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_PSEUDOPROBE_H
#define LLVM_IR_PSEUDOPROBE_H

#include <cassert>
#include <cstdint>
#include <limits>
#include <optional>

namespace llvm {

class Instruction;

constexpr const char *PseudoProbeDescMetadataName = …;

enum class PseudoProbeReservedId { … };

enum class PseudoProbeType { … };

enum class PseudoProbeAttributes { … };

// The saturated distrution factor representing 100% for block probes.
constexpr static uint64_t PseudoProbeFullDistributionFactor = …;

struct PseudoProbeDwarfDiscriminator { … };

class PseudoProbeDescriptor { … };

struct PseudoProbe { … };

static inline bool isSentinelProbe(uint32_t Flags) { … }

static inline bool hasDiscriminator(uint32_t Flags) { … }

std::optional<PseudoProbe> extractProbe(const Instruction &Inst);

void setProbeDistributionFactor(Instruction &Inst, float Factor);
} // end namespace llvm

#endif // LLVM_IR_PSEUDOPROBE_H