1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- Transforms/Instrumentation/PGOInstrumentation.h ----------*- 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
//
//===----------------------------------------------------------------------===//
//
/// \file
/// This file provides the interface for IR based instrumentation passes (
/// (profile-gen, and profile-use).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_PGOINSTRUMENTATION_H
#define LLVM_TRANSFORMS_INSTRUMENTATION_PGOINSTRUMENTATION_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/IR/PassManager.h"
#include <cstdint>
#include <string>
namespace llvm {
class Function;
class Instruction;
class Module;
/// The instrumentation (profile-instr-gen) pass for IR based PGO.
// We use this pass to create COMDAT profile variables for context
// sensitive PGO (CSPGO). The reason to have a pass for this is CSPGO
// can be run after LTO/ThinLTO linking. Lld linker needs to see
// all the COMDAT variables before linking. So we have this pass
// always run before linking for CSPGO.
class PGOInstrumentationGenCreateVar
: public PassInfoMixin<PGOInstrumentationGenCreateVar> {
public:
PGOInstrumentationGenCreateVar(std::string CSInstrName = "")
: CSInstrName(CSInstrName) {}
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
private:
std::string CSInstrName;
};
/// The instrumentation (profile-instr-gen) pass for IR based PGO.
class PGOInstrumentationGen : public PassInfoMixin<PGOInstrumentationGen> {
public:
PGOInstrumentationGen(bool IsCS = false) : IsCS(IsCS) {}
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
private:
// If this is a context sensitive instrumentation.
bool IsCS;
};
/// The profile annotation (profile-instr-use) pass for IR based PGO.
class PGOInstrumentationUse : public PassInfoMixin<PGOInstrumentationUse> {
public:
PGOInstrumentationUse(std::string Filename = "",
std::string RemappingFilename = "", bool IsCS = false);
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
private:
std::string ProfileFileName;
std::string ProfileRemappingFileName;
// If this is a context sensitive instrumentation.
bool IsCS;
};
/// The indirect function call promotion pass.
class PGOIndirectCallPromotion : public PassInfoMixin<PGOIndirectCallPromotion> {
public:
PGOIndirectCallPromotion(bool IsInLTO = false, bool SamplePGO = false)
: InLTO(IsInLTO), SamplePGO(SamplePGO) {}
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
private:
bool InLTO;
bool SamplePGO;
};
/// The profile size based optimization pass for memory intrinsics.
class PGOMemOPSizeOpt : public PassInfoMixin<PGOMemOPSizeOpt> {
public:
PGOMemOPSizeOpt() = default;
PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
void setProfMetadata(Module *M, Instruction *TI, ArrayRef<uint64_t> EdgeCounts,
uint64_t MaxCount);
void setIrrLoopHeaderMetadata(Module *M, Instruction *TI, uint64_t Count);
} // end namespace llvm
#endif // LLVM_TRANSFORMS_INSTRUMENTATION_PGOINSTRUMENTATION_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
