1 //===-- AnalyzerOptions.def - Metadata about Static Analyses ----*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file defines the analyzer options avaible with -analyzer-config.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_ADT_STRINGREF_H
14 #error This .def file is expected to be included in translation units where \
15 "llvm/ADT/StringRef.h" is already included!
18 #ifdef ANALYZER_OPTION
19 #ifndef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
20 #error If you didnt include this file with the intent of generating methods, \
21 define both 'ANALYZER_OPTION' and 'ANALYZER_OPTION_DEPENDS_ON_USER_MODE' macros!
25 #ifndef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
26 #ifdef ANALYZER_OPTION
27 #error If you didnt include this file with the intent of generating methods, \
28 define both 'ANALYZER_OPTION' and 'ANALYZER_OPTION_DEPENDS_ON_USER_MODE' macros!
32 #ifndef ANALYZER_OPTION
33 /// Create a new analyzer option, but dont generate a method for it in
36 /// TYPE - The type of the option object that will be stored in
37 /// AnalyzerOptions. This file is expected to be icluded in translation
38 /// units where AnalyzerOptions.h is included, so types from that
39 /// header should be used.
40 /// NAME - The name of the option object.
41 /// CMDFLAG - The command line flag for the option.
42 /// (-analyzer-config CMDFLAG=VALUE)
43 /// DESC - Description of the flag.
44 /// DEFAULT_VAL - The default value for CMDFLAG.
45 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL)
48 #ifndef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
49 /// Create a new analyzer option, but dont generate a method for it in
50 /// AnalyzerOptions. It's value depends on the option "user-mode".
52 /// TYPE - The type of the option object that will be stored in
53 /// AnalyzerOptions. This file is expected to be icluded in translation
54 /// units where AnalyzerOptions.h is included, so types from that
55 /// header should be used.
56 /// NAME - The name of the option object.
57 /// CMDFLAG - The command line flag for the option.
58 /// (-analyzer-config CMDFLAG=VALUE)
59 /// DESC - Description of the flag.
60 /// SHALLOW_VAL - The default value for CMDFLAG, when "user-mode" was set to
62 /// DEEP_VAL - The default value for CMDFLAG, when "user-mode" was set to
64 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
65 SHALLOW_VAL, DEEP_VAL)
68 //===----------------------------------------------------------------------===//
69 // The "mode" option. Since some options depend on this, we list it on top of
70 // this file in order to make sure that the generated field for it is
71 // initialized before the rest.
72 //===----------------------------------------------------------------------===//
75 StringRef, UserMode, "mode",
76 "(string) Controls the high-level analyzer mode, which influences the "
77 "default settings for some of the lower-level config options (such as "
78 "IPAMode). Value: \"deep\", \"shallow\".",
81 //===----------------------------------------------------------------------===//
82 // Boolean analyzer options.
83 //===----------------------------------------------------------------------===//
85 ANALYZER_OPTION(bool, ShouldIncludeImplicitDtorsInCFG, "cfg-implicit-dtors",
86 "Whether or not implicit destructors for C++ objects "
87 "should be included in the CFG.",
90 ANALYZER_OPTION(bool, ShouldIncludeTemporaryDtorsInCFG, "cfg-temporary-dtors",
91 "Whether or not the destructors for C++ temporary "
92 "objects should be included in the CFG.",
96 bool, ShouldIncludeLifetimeInCFG, "cfg-lifetime",
97 "Whether or not end-of-lifetime information should be included in the CFG.",
100 ANALYZER_OPTION(bool, ShouldIncludeLoopExitInCFG, "cfg-loopexit",
101 "Whether or not the end of the loop information should "
102 "be included in the CFG.",
105 ANALYZER_OPTION(bool, ShouldIncludeRichConstructorsInCFG,
106 "cfg-rich-constructors",
107 "Whether or not construction site information should be "
108 "included in the CFG C++ constructor elements.",
112 bool, ShouldIncludeScopesInCFG, "cfg-scopes",
113 "Whether or not scope information should be included in the CFG.", false)
116 bool, MayInlineTemplateFunctions, "c++-template-inlining",
117 "Whether or not templated functions may be considered for inlining.", true)
119 ANALYZER_OPTION(bool, MayInlineCXXStandardLibrary, "c++-stdlib-inlining",
120 "Whether or not C++ standard library functions may be "
121 "considered for inlining.",
124 ANALYZER_OPTION(bool, MayInlineCXXAllocator, "c++-allocator-inlining",
125 "Whether or not allocator call may be considered for inlining.",
129 bool, MayInlineCXXSharedPtrDtor, "c++-shared_ptr-inlining",
130 "Whether or not the destructor of C++ 'shared_ptr' may be considered for "
131 "inlining. This covers std::shared_ptr, std::tr1::shared_ptr, and "
132 "boost::shared_ptr, and indeed any destructor named '~shared_ptr'.",
135 ANALYZER_OPTION(bool, MayInlineCXXTemporaryDtors, "c++-temp-dtor-inlining",
136 "Whether C++ temporary destructors should be inlined "
137 "during analysis. If temporary destructors are disabled "
138 "in the CFG via the 'cfg-temporary-dtors' option, "
139 "temporary destructors would not be inlined anyway.",
143 bool, ShouldSuppressNullReturnPaths, "suppress-null-return-paths",
144 "Whether or not paths that go through null returns should be suppressed. "
145 "This is a heuristic for avoiding bug reports with paths that go through "
146 "inlined functions that are more defensive than their callers.",
150 bool, ShouldAvoidSuppressingNullArgumentPaths,
151 "avoid-suppressing-null-argument-paths",
152 "Whether a bug report should not be suppressed if its path includes a call "
153 "with a null argument, even if that call has a null return. This option "
154 "has no effect when ShouldSuppressNullReturnPaths is false. This is a "
155 "counter-heuristic to avoid false negatives.",
158 ANALYZER_OPTION(bool, ShouldSuppressInlinedDefensiveChecks,
159 "suppress-inlined-defensive-checks",
160 "Whether or not diagnostics containing inlined "
161 "defensive NULL checks should be suppressed.",
164 ANALYZER_OPTION(bool, MayInlineCXXContainerMethods, "c++-container-inlining",
165 "Whether or not methods of C++ container objects may be "
166 "considered for inlining.",
169 ANALYZER_OPTION(bool, ShouldSuppressFromCXXStandardLibrary,
170 "suppress-c++-stdlib",
171 "Whether or not diagnostics reported within the C++ "
172 "standard library should be suppressed.",
175 ANALYZER_OPTION(bool, ShouldCrosscheckWithZ3, "crosscheck-with-z3",
176 "Whether bug reports should be crosschecked with the Z3 "
177 "constraint manager backend.",
180 ANALYZER_OPTION(bool, ShouldReportIssuesInMainSourceFile,
181 "report-in-main-source-file",
182 "Whether or not the diagnostic report should be always "
183 "reported in the main source file and not the headers.",
186 ANALYZER_OPTION(bool, ShouldWriteStableReportFilename, "stable-report-filename",
187 "Whether or not the report filename should be random or not.",
191 bool, ShouldSerializeStats, "serialize-stats",
192 "Whether the analyzer should serialize statistics to plist output. "
193 "Statistics would be serialized in JSON format inside the main dictionary "
194 "under the statistics key. Available only if compiled in assert mode or "
195 "with LLVM statistics explicitly enabled.",
198 ANALYZER_OPTION(bool, MayInlineObjCMethod, "objc-inlining",
199 "Whether ObjectiveC inlining is enabled, false otherwise.",
202 ANALYZER_OPTION(bool, ShouldPrunePaths, "prune-paths",
203 "Whether irrelevant parts of a bug report path should "
204 "be pruned out of the final output.",
207 ANALYZER_OPTION(bool, ShouldAddPopUpNotes, "add-pop-up-notes",
208 "Whether pop-up notes should be added to the final output.",
212 bool, ShouldConditionalizeStaticInitializers,
213 "cfg-conditional-static-initializers",
214 "Whether 'static' initializers should be in conditional logic in the CFG.",
217 ANALYZER_OPTION(bool, ShouldSynthesizeBodies, "faux-bodies",
218 "Whether the analyzer engine should synthesize fake "
219 "bodies for well-known functions.",
223 bool, ShouldElideConstructors, "elide-constructors",
224 "Whether elidable C++ copy-constructors and move-constructors should be "
225 "actually elided during analysis. Both behaviors are allowed by the C++ "
226 "standard, and the analyzer, like CodeGen, defaults to eliding. Starting "
227 "with C++17 some elisions become mandatory, and in these cases the option "
232 bool, ShouldInlineLambdas, "inline-lambdas",
233 "Whether lambdas should be inlined. Otherwise a sink node will be "
234 "generated each time a LambdaExpr is visited.",
237 ANALYZER_OPTION(bool, ShouldWidenLoops, "widen-loops",
238 "Whether the analysis should try to widen loops.", false)
241 bool, ShouldUnrollLoops, "unroll-loops",
242 "Whether the analysis should try to unroll loops with known bounds.", false)
245 bool, ShouldDisplayNotesAsEvents, "notes-as-events",
246 "Whether the bug reporter should transparently treat extra note diagnostic "
247 "pieces as event diagnostic pieces. Useful when the diagnostic consumer "
248 "doesn't support the extra note pieces.",
252 bool, ShouldAggressivelySimplifyBinaryOperation,
253 "aggressive-binary-operation-simplification",
254 "Whether SValBuilder should rearrange comparisons and additive operations "
255 "of symbolic expressions which consist of a sum of a symbol and a concrete "
256 "integer into the format where symbols are on the left-hand side and the "
257 "integer is on the right. This is only done if both symbols and both "
258 "concrete integers are signed, greater than or equal to the quarter of the "
259 "minimum value of the type and less than or equal to the quarter of the "
260 "maximum value of that type. A + n <OP> B + m becomes A - B <OP> m - n, "
261 "where A and B symbolic, n and m are integers. <OP> is any of '==', '!=', "
262 "'<', '<=', '>', '>=', '+' or '-'. The rearrangement also happens with '-' "
263 "instead of '+' on either or both side and also if any or both integers "
268 bool, ShouldEagerlyAssume, "eagerly-assume",
269 "Whether we should eagerly assume evaluations of conditionals, thus, "
270 "bifurcating the path. This indicates how the engine should handle "
271 "expressions such as: 'x = (y != 0)'. When this is true then the "
272 "subexpression 'y != 0' will be eagerly assumed to be true or false, thus "
273 "evaluating it to the integers 0 or 1 respectively. The upside is that "
274 "this can increase analysis precision until we have a better way to lazily "
275 "evaluate such logic. The downside is that it eagerly bifurcates paths.",
279 bool, IsNaiveCTUEnabled, "experimental-enable-naive-ctu-analysis",
280 "Whether naive cross translation unit analysis is enabled. This is an "
281 "experimental feature to inline functions from other translation units.",
284 ANALYZER_OPTION(bool, ShouldDisplayMacroExpansions, "expand-macros",
285 "Whether macros related to the bugpath should be "
286 "expanded and included in the plist output.",
289 ANALYZER_OPTION(bool, DisplayCTUProgress, "display-ctu-progress",
290 "Whether to emit verbose output about "
291 "the analyzer's progress related to ctu.",
294 ANALYZER_OPTION(bool, ShouldTrackConditions, "track-conditions",
295 "Whether to track conditions that are a control dependency of "
296 "an already tracked variable.",
299 ANALYZER_OPTION(bool, ShouldTrackConditionsDebug, "track-conditions-debug",
300 "Whether to place an event at each tracked condition.",
303 ANALYZER_OPTION(unsigned, CTUImportThreshold, "ctu-import-threshold",
304 "The maximal amount of translation units that is considered "
305 "for import when inlining functions during CTU analysis. "
306 "Lowering this threshold can alleviate the memory burder of "
307 "analysis with many interdependent definitions located in "
308 "various translation units.",
311 //===----------------------------------------------------------------------===//
312 // Unsinged analyzer options.
313 //===----------------------------------------------------------------------===//
316 unsigned, AlwaysInlineSize, "ipa-always-inline-size",
317 "The size of the functions (in basic blocks), which should be considered "
318 "to be small enough to always inline.",
322 unsigned, GraphTrimInterval, "graph-trim-interval",
323 "How often nodes in the ExplodedGraph should be recycled to save memory. "
324 "To disable node reclamation, set the option to 0.",
328 unsigned, MinCFGSizeTreatFunctionsAsLarge,
329 "min-cfg-size-treat-functions-as-large",
330 "The number of basic blocks a function needs to have to be considered "
331 "large for the 'max-times-inline-large' config option.",
334 ANALYZER_OPTION(unsigned, MaxSymbolComplexity, "max-symbol-complexity",
335 "The maximum complexity of symbolic constraint.", 35)
337 ANALYZER_OPTION(unsigned, MaxTimesInlineLarge, "max-times-inline-large",
338 "The maximum times a large function could be inlined.", 32)
340 ANALYZER_OPTION_DEPENDS_ON_USER_MODE(
341 unsigned, MaxInlinableSize, "max-inlinable-size",
342 "The bound on the number of basic blocks in an inlined function.",
343 /* SHALLOW_VAL */ 4, /* DEEP_VAL */ 100)
345 ANALYZER_OPTION_DEPENDS_ON_USER_MODE(
346 unsigned, MaxNodesPerTopLevelFunction, "max-nodes",
347 "The maximum number of nodes the analyzer can generate while exploring a "
348 "top level function (for each exploded graph). 0 means no limit.",
349 /* SHALLOW_VAL */ 75000, /* DEEP_VAL */ 225000)
352 unsigned, RegionStoreSmallStructLimit, "region-store-small-struct-limit",
353 "The largest number of fields a struct can have and still be considered "
354 "small This is currently used to decide whether or not it is worth forcing "
355 "a LazyCompoundVal on bind. To disable all small-struct-dependent "
356 "behavior, set the option to 0.",
359 //===----------------------------------------------------------------------===//
360 // String analyzer options.
361 //===----------------------------------------------------------------------===//
363 ANALYZER_OPTION(StringRef, CTUDir, "ctu-dir",
364 "The directory containing the CTU related files.", "")
366 ANALYZER_OPTION(StringRef, CTUIndexName, "ctu-index-name",
367 "the name of the file containing the CTU index of definitions.",
368 "externalDefMap.txt")
371 StringRef, ModelPath, "model-path",
372 "The analyzer can inline an alternative implementation written in C at the "
373 "call site if the called function's body is not available. This is a path "
374 "where to look for those alternative implementations (called models).",
378 StringRef, CXXMemberInliningMode, "c++-inlining",
379 "Controls which C++ member functions will be considered for inlining. "
380 "Value: \"constructors\", \"destructors\", \"methods\".",
383 ANALYZER_OPTION_DEPENDS_ON_USER_MODE(
384 StringRef, IPAMode, "ipa",
385 "Controls the mode of inter-procedural analysis. Value: \"none\", "
386 "\"basic-inlining\", \"inlining\", \"dynamic\", \"dynamic-bifurcate\".",
387 /* SHALLOW_VAL */ "inlining", /* DEEP_VAL */ "dynamic-bifurcate")
390 StringRef, ExplorationStrategy, "exploration_strategy",
391 "Value: \"dfs\", \"bfs\", \"unexplored_first\", "
392 "\"unexplored_first_queue\", \"unexplored_first_location_queue\", "
393 "\"bfs_block_dfs_contents\".",
394 "unexplored_first_queue")
396 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
397 #undef ANALYZER_OPTION