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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
| //===- llvm/Transforms/IPO.h - Interprocedural 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 IPO transformations library.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_IPO_H
#define LLVM_TRANSFORMS_IPO_H
#include "llvm/ADT/SmallVector.h"
#include <functional>
#include <vector>
namespace llvm {
struct InlineParams;
class StringRef;
class ModuleSummaryIndex;
class ModulePass;
class Pass;
class Function;
class BasicBlock;
class GlobalValue;
class raw_ostream;
//===----------------------------------------------------------------------===//
//
// These functions removes symbols from functions and modules. If OnlyDebugInfo
// is true, only debugging information is removed from the module.
//
ModulePass *createStripSymbolsPass(bool OnlyDebugInfo = false);
//===----------------------------------------------------------------------===//
//
// These functions strips symbols from functions and modules.
// Only debugging information is not stripped.
//
ModulePass *createStripNonDebugSymbolsPass();
//===----------------------------------------------------------------------===//
//
// This pass removes llvm.dbg.declare intrinsics.
ModulePass *createStripDebugDeclarePass();
//===----------------------------------------------------------------------===//
//
// This pass removes unused symbols' debug info.
ModulePass *createStripDeadDebugInfoPass();
//===----------------------------------------------------------------------===//
/// createConstantMergePass - This function returns a new pass that merges
/// duplicate global constants together into a single constant that is shared.
/// This is useful because some passes (ie TraceValues) insert a lot of string
/// constants into the program, regardless of whether or not they duplicate an
/// existing string.
///
ModulePass *createConstantMergePass();
//===----------------------------------------------------------------------===//
/// createGlobalOptimizerPass - This function returns a new pass that optimizes
/// non-address taken internal globals.
///
ModulePass *createGlobalOptimizerPass();
//===----------------------------------------------------------------------===//
/// createGlobalDCEPass - This transform is designed to eliminate unreachable
/// internal globals (functions or global variables)
///
ModulePass *createGlobalDCEPass();
//===----------------------------------------------------------------------===//
/// This transform is designed to eliminate available external globals
/// (functions or global variables)
///
ModulePass *createEliminateAvailableExternallyPass();
//===----------------------------------------------------------------------===//
/// createGVExtractionPass - If deleteFn is true, this pass deletes
/// the specified global values. Otherwise, it deletes as much of the module as
/// possible, except for the global values specified.
///
ModulePass *createGVExtractionPass(std::vector<GlobalValue*>& GVs, bool
deleteFn = false);
//===----------------------------------------------------------------------===//
/// This pass performs iterative function importing from other modules.
Pass *createFunctionImportPass();
//===----------------------------------------------------------------------===//
/// createFunctionInliningPass - Return a new pass object that uses a heuristic
/// to inline direct function calls to small functions.
///
/// The Threshold can be passed directly, or asked to be computed from the
/// given optimization and size optimization arguments.
///
/// The -inline-threshold command line option takes precedence over the
/// threshold given here.
Pass *createFunctionInliningPass();
Pass *createFunctionInliningPass(int Threshold);
Pass *createFunctionInliningPass(unsigned OptLevel, unsigned SizeOptLevel,
bool DisableInlineHotCallSite);
Pass *createFunctionInliningPass(InlineParams &Params);
//===----------------------------------------------------------------------===//
/// createPruneEHPass - Return a new pass object which transforms invoke
/// instructions into calls, if the callee can _not_ unwind the stack.
///
Pass *createPruneEHPass();
//===----------------------------------------------------------------------===//
/// createInternalizePass - This pass loops over all of the functions in the
/// input module, internalizing all globals (functions and variables) it can.
////
/// Before internalizing a symbol, the callback \p MustPreserveGV is invoked and
/// gives to the client the ability to prevent internalizing specific symbols.
///
/// The symbol in DSOList are internalized if it is safe to drop them from
/// the symbol table.
///
/// Note that commandline options that are used with the above function are not
/// used now!
ModulePass *
createInternalizePass(std::function<bool(const GlobalValue &)> MustPreserveGV);
/// createInternalizePass - Same as above, but with an empty exportList.
ModulePass *createInternalizePass();
//===----------------------------------------------------------------------===//
/// createDeadArgEliminationPass - This pass removes arguments from functions
/// which are not used by the body of the function.
///
ModulePass *createDeadArgEliminationPass();
/// DeadArgHacking pass - Same as DAE, but delete arguments of external
/// functions as well. This is definitely not safe, and should only be used by
/// bugpoint.
ModulePass *createDeadArgHackingPass();
//===----------------------------------------------------------------------===//
/// createArgumentPromotionPass - This pass promotes "by reference" arguments to
/// be passed by value if the number of elements passed is smaller or
/// equal to maxElements (maxElements == 0 means always promote).
///
Pass *createArgumentPromotionPass(unsigned maxElements = 3);
//===----------------------------------------------------------------------===//
/// createIPConstantPropagationPass - This pass propagates constants from call
/// sites into the bodies of functions.
///
ModulePass *createIPConstantPropagationPass();
//===----------------------------------------------------------------------===//
/// createIPSCCPPass - This pass propagates constants from call sites into the
/// bodies of functions, and keeps track of whether basic blocks are executable
/// in the process.
///
ModulePass *createIPSCCPPass();
//===----------------------------------------------------------------------===//
//
/// createLoopExtractorPass - This pass extracts all natural loops from the
/// program into a function if it can.
///
Pass *createLoopExtractorPass();
/// createSingleLoopExtractorPass - This pass extracts one natural loop from the
/// program into a function if it can. This is used by bugpoint.
///
Pass *createSingleLoopExtractorPass();
/// createBlockExtractorPass - This pass extracts all the specified blocks
/// from the functions in the module.
///
ModulePass *createBlockExtractorPass();
ModulePass *
createBlockExtractorPass(const SmallVectorImpl<BasicBlock *> &BlocksToExtract,
bool EraseFunctions);
ModulePass *
createBlockExtractorPass(const SmallVectorImpl<SmallVector<BasicBlock *, 16>>
&GroupsOfBlocksToExtract,
bool EraseFunctions);
/// createStripDeadPrototypesPass - This pass removes any function declarations
/// (prototypes) that are not used.
ModulePass *createStripDeadPrototypesPass();
//===----------------------------------------------------------------------===//
/// createReversePostOrderFunctionAttrsPass - This pass walks SCCs of the call
/// graph in RPO to deduce and propagate function attributes. Currently it
/// only handles synthesizing norecurse attributes.
///
Pass *createReversePostOrderFunctionAttrsPass();
//===----------------------------------------------------------------------===//
/// createMergeFunctionsPass - This pass discovers identical functions and
/// collapses them.
///
ModulePass *createMergeFunctionsPass();
//===----------------------------------------------------------------------===//
/// createHotColdSplittingPass - This pass outlines cold blocks into a separate
/// function(s).
ModulePass *createHotColdSplittingPass();
//===----------------------------------------------------------------------===//
/// createPartialInliningPass - This pass inlines parts of functions.
///
ModulePass *createPartialInliningPass();
//===----------------------------------------------------------------------===//
/// createBarrierNoopPass - This pass is purely a module pass barrier in a pass
/// manager.
ModulePass *createBarrierNoopPass();
/// createCalledValuePropagationPass - Attach metadata to indirct call sites
/// indicating the set of functions they may target at run-time.
ModulePass *createCalledValuePropagationPass();
/// What to do with the summary when running passes that operate on it.
enum class PassSummaryAction {
None, ///< Do nothing.
Import, ///< Import information from summary.
Export, ///< Export information to summary.
};
/// This pass lowers type metadata and the llvm.type.test intrinsic to
/// bitsets.
///
/// The behavior depends on the summary arguments:
/// - If ExportSummary is non-null, this pass will export type identifiers to
/// the given summary.
/// - Otherwise, if ImportSummary is non-null, this pass will import type
/// identifiers from the given summary.
/// - Otherwise it does neither.
/// It is invalid for both ExportSummary and ImportSummary to be non-null.
ModulePass *createLowerTypeTestsPass(ModuleSummaryIndex *ExportSummary,
const ModuleSummaryIndex *ImportSummary);
/// This pass export CFI checks for use by external modules.
ModulePass *createCrossDSOCFIPass();
/// This pass implements whole-program devirtualization using type
/// metadata.
///
/// The behavior depends on the summary arguments:
/// - If ExportSummary is non-null, this pass will export type identifiers to
/// the given summary.
/// - Otherwise, if ImportSummary is non-null, this pass will import type
/// identifiers from the given summary.
/// - Otherwise it does neither.
/// It is invalid for both ExportSummary and ImportSummary to be non-null.
ModulePass *
createWholeProgramDevirtPass(ModuleSummaryIndex *ExportSummary,
const ModuleSummaryIndex *ImportSummary);
/// This pass splits globals into pieces for the benefit of whole-program
/// devirtualization and control-flow integrity.
ModulePass *createGlobalSplitPass();
//===----------------------------------------------------------------------===//
// SampleProfilePass - Loads sample profile data from disk and generates
// IR metadata to reflect the profile.
ModulePass *createSampleProfileLoaderPass();
ModulePass *createSampleProfileLoaderPass(StringRef Name);
/// Write ThinLTO-ready bitcode to Str.
ModulePass *createWriteThinLTOBitcodePass(raw_ostream &Str,
raw_ostream *ThinLinkOS = nullptr);
} // End llvm namespace
#endif
|