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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
//===- llvm/Transforms/Utils.h - Utility Transformations --------*- 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
//
//===----------------------------------------------------------------------===//
//
// This header file defines prototypes for accessor functions that expose passes
// in the Utils transformations library.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_UTILS_H
#define LLVM_TRANSFORMS_UTILS_H
namespace llvm {
class ModulePass;
class FunctionPass;
class Pass;
//===----------------------------------------------------------------------===//
// createMetaRenamerPass - Rename everything with metasyntatic names.
//
ModulePass *createMetaRenamerPass();
//===----------------------------------------------------------------------===//
// createUniqueInternalLinkageNamesPass - Make internal linkage symbol names
// unique.
//
ModulePass *createUniqueInternalLinkageNamesPass();
//===----------------------------------------------------------------------===//
//
// LowerInvoke - This pass removes invoke instructions, converting them to call
// instructions.
//
FunctionPass *createLowerInvokePass();
extern char &LowerInvokePassID;
//===----------------------------------------------------------------------===//
//
// InstructionNamer - Give any unnamed non-void instructions "tmp" names.
//
FunctionPass *createInstructionNamerPass();
extern char &InstructionNamerID;
//===----------------------------------------------------------------------===//
//
// LowerSwitch - This pass converts SwitchInst instructions into a sequence of
// chained binary branch instructions.
//
FunctionPass *createLowerSwitchPass();
extern char &LowerSwitchID;
//===----------------------------------------------------------------------===//
//
// EntryExitInstrumenter pass - Instrument function entry/exit with calls to
// mcount(), @__cyg_profile_func_{enter,exit} and the like. There are two
// variants, intended to run pre- and post-inlining, respectively.
//
FunctionPass *createEntryExitInstrumenterPass();
FunctionPass *createPostInlineEntryExitInstrumenterPass();
//===----------------------------------------------------------------------===//
//
// BreakCriticalEdges - Break all of the critical edges in the CFG by inserting
// a dummy basic block. This pass may be "required" by passes that cannot deal
// with critical edges. For this usage, a pass must call:
//
// AU.addRequiredID(BreakCriticalEdgesID);
//
// This pass obviously invalidates the CFG, but can update forward dominator
// (set, immediate dominators, tree, and frontier) information.
//
FunctionPass *createBreakCriticalEdgesPass();
extern char &BreakCriticalEdgesID;
//===----------------------------------------------------------------------===//
//
// LCSSA - This pass inserts phi nodes at loop boundaries to simplify other loop
// optimizations.
//
Pass *createLCSSAPass();
extern char &LCSSAID;
//===----------------------------------------------------------------------===//
//
// AddDiscriminators - Add DWARF path discriminators to the IR.
FunctionPass *createAddDiscriminatorsPass();
//===----------------------------------------------------------------------===//
//
// PromoteMemoryToRegister - This pass is used to promote memory references to
// be register references. A simple example of the transformation performed by
// this pass is:
//
// FROM CODE TO CODE
// %X = alloca i32, i32 1 ret i32 42
// store i32 42, i32 *%X
// %Y = load i32* %X
// ret i32 %Y
//
FunctionPass *createPromoteMemoryToRegisterPass();
//===----------------------------------------------------------------------===//
//
// LoopSimplify - Insert Pre-header blocks into the CFG for every function in
// the module. This pass updates dominator information, loop information, and
// does not add critical edges to the CFG.
//
// AU.addRequiredID(LoopSimplifyID);
//
Pass *createLoopSimplifyPass();
extern char &LoopSimplifyID;
/// This function returns a new pass that downgrades the debug info in the
/// module to line tables only.
ModulePass *createStripNonLineTableDebugLegacyPass();
//===----------------------------------------------------------------------===//
//
// ControlHeightReudction - Merges conditional blocks of code and reduces the
// number of conditional branches in the hot paths based on profiles.
//
FunctionPass *createControlHeightReductionLegacyPass();
//===----------------------------------------------------------------------===//
//
// InjectTLIMappingsLegacy - populates the VFABI attribute with the
// scalar-to-vector mappings from the TargetLibraryInfo.
//
FunctionPass *createInjectTLIMappingsLegacyPass();
//===----------------------------------------------------------------------===//
//
// UnifyLoopExits - For each loop, creates a new block N such that all exiting
// blocks branch to N, and then N distributes control flow to all the original
// exit blocks.
//
FunctionPass *createUnifyLoopExitsPass();
//===----------------------------------------------------------------------===//
//
// FixIrreducible - Convert each SCC with irreducible control-flow
// into a natural loop.
//
FunctionPass *createFixIrreduciblePass();
//===----------------------------------------------------------------------===//
//
// AssumeSimplify - remove redundant assumes and merge assumes in the same
// BasicBlock when possible.
//
FunctionPass *createAssumeSimplifyPass();
//===----------------------------------------------------------------------===//
//
// CanonicalizeFreezeInLoops - Canonicalize freeze instructions in loops so they
// don't block SCEV.
//
Pass *createCanonicalizeFreezeInLoopsPass();
} // namespace llvm
#endif
|
