CC1Options.td revision f24a151d645abc89f94aa58ad59f3131502041b1
1//===--- CC1Options.td - Options for clang -cc1 ---------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This file defines the options accepted by clang -cc1.
11//
12//===----------------------------------------------------------------------===//
13
14// Include the common option parsing interfaces.
15include "OptParser.td"
16
17//===----------------------------------------------------------------------===//
18// Target Options
19//===----------------------------------------------------------------------===//
20
21def cxx_abi : Separate<"-cxx-abi">,
22  HelpText<"Target a particular C++ ABI type">;
23def target_abi : Separate<"-target-abi">,
24  HelpText<"Target a particular ABI type">;
25def target_cpu : Separate<"-target-cpu">,
26  HelpText<"Target a specific cpu type">;
27def target_feature : Separate<"-target-feature">,
28  HelpText<"Target specific attributes">;
29def target_linker_version : Separate<"-target-linker-version">,
30  HelpText<"Target linker version">;
31def triple : Separate<"-triple">,
32  HelpText<"Specify target triple (e.g. i686-apple-darwin9)">;
33def triple_EQ : Joined<"-triple=">, Alias<triple>;
34
35//===----------------------------------------------------------------------===//
36// Analyzer Options
37//===----------------------------------------------------------------------===//
38
39def analysis_UnoptimizedCFG : Flag<"-unoptimized-cfg">,
40  HelpText<"Generate unoptimized CFGs for all analyses">;
41def analysis_CFGAddImplicitDtors : Flag<"-cfg-add-implicit-dtors">,
42  HelpText<"Add C++ implicit destructors to CFGs for all analyses">;
43def analysis_CFGAddInitializers : Flag<"-cfg-add-initializers">,
44  HelpText<"Add C++ initializers to CFGs for all analyses">;
45
46def analyzer_store : Separate<"-analyzer-store">,
47  HelpText<"Source Code Analysis - Abstract Memory Store Models">;
48def analyzer_store_EQ : Joined<"-analyzer-store=">, Alias<analyzer_store>;
49
50def analyzer_constraints : Separate<"-analyzer-constraints">,
51  HelpText<"Source Code Analysis - Symbolic Constraint Engines">;
52def analyzer_constraints_EQ : Joined<"-analyzer-constraints=">,
53  Alias<analyzer_constraints>;
54
55def analyzer_output : Separate<"-analyzer-output">,
56  HelpText<"Source Code Analysis - Output Options">;
57def analyzer_output_EQ : Joined<"-analyzer-output=">,
58  Alias<analyzer_output>;
59
60def analyzer_opt_analyze_headers : Flag<"-analyzer-opt-analyze-headers">,
61  HelpText<"Force the static analyzer to analyze functions defined in header files">;
62def analyzer_opt_analyze_nested_blocks : Flag<"-analyzer-opt-analyze-nested-blocks">,
63  HelpText<"Analyze the definitions of blocks in addition to functions">;
64def analyzer_display_progress : Flag<"-analyzer-display-progress">,
65  HelpText<"Emit verbose output about the analyzer's progress">;
66def analyze_function : Separate<"-analyze-function">,
67  HelpText<"Run analysis on specific function">;
68def analyze_function_EQ : Joined<"-analyze-function=">, Alias<analyze_function>;
69def analyzer_eagerly_assume : Flag<"-analyzer-eagerly-assume">,
70  HelpText<"Eagerly assume the truth/falseness of some symbolic constraints">;
71def analyzer_no_purge_dead : Flag<"-analyzer-no-purge-dead">,
72  HelpText<"Don't remove dead symbols, bindings, and constraints before processing a statement">;
73def analyzer_no_eagerly_trim_egraph : Flag<"-analyzer-no-eagerly-trim-egraph">,
74  HelpText<"Don't eagerly remove uninteresting ExplodedNodes from the ExplodedGraph">;
75def trim_egraph : Flag<"-trim-egraph">,
76  HelpText<"Only show error-related paths in the analysis graph">;
77def analyzer_viz_egraph_graphviz : Flag<"-analyzer-viz-egraph-graphviz">,
78  HelpText<"Display exploded graph using GraphViz">;
79def analyzer_viz_egraph_ubigraph : Flag<"-analyzer-viz-egraph-ubigraph">,
80  HelpText<"Display exploded graph using Ubigraph">;
81def analyzer_inline_call : Flag<"-analyzer-inline-call">,
82  HelpText<"Experimental transfer function inlining callees when its definition is available.">;
83def analyzer_max_nodes : Separate<"-analyzer-max-nodes">,
84  HelpText<"The maximum number of nodes the analyzer can generate (150000 default, 0 = no limit)">;
85def analyzer_max_loop : Separate<"-analyzer-max-loop">,
86  HelpText<"The maximum number of times the analyzer will go through a loop">;
87
88def analyzer_checker : Separate<"-analyzer-checker">,
89  HelpText<"Choose analyzer checkers to enable">;
90def analyzer_checker_EQ : Joined<"-analyzer-checker=">,
91  Alias<analyzer_checker>;
92
93def analyzer_disable_checker : Separate<"-analyzer-disable-checker">,
94  HelpText<"Choose analyzer checkers to disable">;
95def analyzer_disable_checker_EQ : Joined<"-analyzer-disable-checker=">,
96  Alias<analyzer_disable_checker>;
97
98def analyzer_checker_help : Flag<"-analyzer-checker-help">,
99  HelpText<"Display the list of analyzer checkers that are available">;
100
101//===----------------------------------------------------------------------===//
102// CodeGen Options
103//===----------------------------------------------------------------------===//
104
105def disable_llvm_optzns : Flag<"-disable-llvm-optzns">,
106  HelpText<"Don't run LLVM optimization passes">;
107def disable_llvm_verifier : Flag<"-disable-llvm-verifier">,
108  HelpText<"Don't run the LLVM IR verifier pass">;
109def disable_red_zone : Flag<"-disable-red-zone">,
110  HelpText<"Do not emit code that uses the red zone.">;
111def dwarf_debug_flags : Separate<"-dwarf-debug-flags">,
112  HelpText<"The string to embed in the Dwarf debug flags record.">;
113def fforbid_guard_variables : Flag<"-fforbid-guard-variables">,
114  HelpText<"Emit an error if a C++ static local initializer would need a guard variable">;
115def g : Flag<"-g">, HelpText<"Generate source level debug information">;
116def fno_dwarf2_cfi_asm : Flag<"-fno-dwarf2-cfi-asm">, HelpText<"Don't use the cfi directives">;
117def fcatch_undefined_behavior : Flag<"-fcatch-undefined-behavior">,
118    HelpText<"Generate runtime checks for undefined behavior.">;
119def flimit_debug_info : Flag<"-flimit-debug-info">,
120  HelpText<"Limit debug information produced to reduce size of debug binary">;
121def fno_common : Flag<"-fno-common">,
122  HelpText<"Compile common globals like normal definitions">;
123def no_implicit_float : Flag<"-no-implicit-float">,
124  HelpText<"Don't generate implicit floating point instructions (x86-only)">;
125def finstrument_functions : Flag<"-finstrument-functions">,
126  HelpText<"Generate calls to instrument function entry and exit">;
127def fno_merge_all_constants : Flag<"-fno-merge-all-constants">,
128  HelpText<"Disallow merging of constants.">;
129def fno_threadsafe_statics : Flag<"-fno-threadsafe-statics">,
130  HelpText<"Do not emit code to make initialization of local statics thread safe">;
131def fdump_vtable_layouts : Flag<"-fdump-vtable-layouts">,
132  HelpText<"Dump the layouts of all vtables that will be emitted in a translation unit">;
133def ffunction_sections : Flag<"-ffunction-sections">,
134  HelpText<"Place each function in its own section (ELF Only)">;
135def fdata_sections : Flag<"-fdata-sections">,
136  HelpText<"Place each data in its own section (ELF Only)">;
137def funroll_loops : Flag<"-funroll-loops">,
138  HelpText<"Turn on loop unroller">;
139def femit_coverage_notes : Flag<"-femit-coverage-notes">,
140  HelpText<"Emit a gcov coverage notes file when compiling.">;
141def femit_coverage_data: Flag<"-femit-coverage-data">,
142  HelpText<"Instrument the program to emit gcov coverage data when run.">;
143def relaxed_aliasing : Flag<"-relaxed-aliasing">,
144  HelpText<"Turn off Type Based Alias Analysis">;
145def masm_verbose : Flag<"-masm-verbose">,
146  HelpText<"Generate verbose assembly output">;
147def mcode_model : Separate<"-mcode-model">,
148  HelpText<"The code model to use">;
149def mdebug_pass : Separate<"-mdebug-pass">,
150  HelpText<"Enable additional debug output">;
151def mdisable_fp_elim : Flag<"-mdisable-fp-elim">,
152  HelpText<"Disable frame pointer elimination optimization">;
153def mfloat_abi : Separate<"-mfloat-abi">,
154  HelpText<"The float ABI to use">;
155def mlimit_float_precision : Separate<"-mlimit-float-precision">,
156  HelpText<"Limit float precision to the given value">;
157def mno_zero_initialized_in_bss : Flag<"-mno-zero-initialized-in-bss">,
158  HelpText<"Do not put zero initialized data in the BSS">;
159def momit_leaf_frame_pointer : Flag<"-momit-leaf-frame-pointer">,
160  HelpText<"Omit frame pointer setup for leaf functions.">;
161def msoft_float : Flag<"-msoft-float">,
162  HelpText<"Use software floating point">;
163def backend_option : Separate<"-backend-option">,
164  HelpText<"Additional arguments to forward to LLVM backend (during code gen)">;
165def mregparm : Separate<"-mregparm">,
166  HelpText<"Limit the number of registers available for integer arguments">;
167def mrelax_all : Flag<"-mrelax-all">,
168  HelpText<"(integrated-as) Relax all machine instructions">;
169def msave_temp_labels : Flag<"-msave-temp-labels">,
170  HelpText<"(integrated-as) Save temporary labels">;
171def mrtd: Flag<"-mrtd">,
172  HelpText<"Make StdCall calling convention the default">;
173def mrelocation_model : Separate<"-mrelocation-model">,
174  HelpText<"The relocation model to use">;
175def munwind_tables : Flag<"-munwind-tables">,
176  HelpText<"Generate unwinding tables for all functions">;
177def mconstructor_aliases : Flag<"-mconstructor-aliases">,
178  HelpText<"Emit complete constructors and destructors as aliases when possible">;
179def mms_bitfields : Flag<"-mms-bitfields">,
180  HelpText<"Set the default structure layout to be compatible with the Microsoft compiler standard.">;
181def O : Joined<"-O">, HelpText<"Optimization level">;
182def Os : Flag<"-Os">, HelpText<"Optimize for size">;
183def Oz : Flag<"-Oz">, HelpText<"Optimize for size, regardless of performance">;
184def pg : Flag<"-pg">, HelpText<"Enable mcount instrumentation">;
185
186//===----------------------------------------------------------------------===//
187// Dependency Output Options
188//===----------------------------------------------------------------------===//
189
190def dependency_file : Separate<"-dependency-file">,
191  HelpText<"Filename (or -) to write dependency output to">;
192def sys_header_deps : Flag<"-sys-header-deps">,
193  HelpText<"Include system headers in dependency output">;
194def header_include_file : Separate<"-header-include-file">,
195  HelpText<"Filename (or -) to write header include output to">;
196def H : Flag<"-H">,
197  HelpText<"Show header includes and nesting depth">;
198def MQ : Separate<"-MQ">, HelpText<"Specify target to quote for dependency">;
199def MT : Separate<"-MT">, HelpText<"Specify target for dependency">;
200def MP : Flag<"-MP">,
201  HelpText<"Create phony target for each dependency (other than main file)">;
202
203//===----------------------------------------------------------------------===//
204// Diagnostic Options
205//===----------------------------------------------------------------------===//
206
207def dump_build_information : Separate<"-dump-build-information">,
208  MetaVarName<"<filename>">,
209  HelpText<"output a dump of some build information to a file">;
210def diagnostic_log_file : Separate<"-diagnostic-log-file">,
211  HelpText<"Filename (or -) to log diagnostics to">;
212def fno_show_column : Flag<"-fno-show-column">,
213  HelpText<"Do not include column number on diagnostics">;
214def fno_show_source_location : Flag<"-fno-show-source-location">,
215  HelpText<"Do not include source location information with diagnostics">;
216def fshow_overloads_EQ : Joined<"-fshow-overloads=">,
217  HelpText<"Which overload candidates to show when overload resolution fails: "
218           "best|all; defaults to all">;
219def fno_caret_diagnostics : Flag<"-fno-caret-diagnostics">,
220  HelpText<"Do not include source line and caret with diagnostics">;
221def fno_diagnostics_fixit_info : Flag<"-fno-diagnostics-fixit-info">,
222  HelpText<"Do not include fixit information in diagnostics">;
223def fno_diagnostics_show_note_include_stack :
224  Flag<"-fno-diagnostics-show-note-include-stack">,
225  HelpText<"Display include stacks for diagnostic notes">;
226def w : Flag<"-w">, HelpText<"Suppress all warnings">;
227def pedantic : Flag<"-pedantic">;
228def pedantic_errors : Flag<"-pedantic-errors">;
229
230// This gets all -W options, including -Werror, -W[no-]system-headers, etc.  The
231// driver has stripped off -Wa,foo etc.  The driver has also translated -W to
232// -Wextra, so we don't need to worry about it.
233def W : Joined<"-W">;
234
235def fdiagnostics_print_source_range_info : Flag<"-fdiagnostics-print-source-range-info">,
236  HelpText<"Print source range spans in numeric form">;
237def fdiagnostics_parseable_fixits : Flag<"-fdiagnostics-parseable-fixits">,
238  HelpText<"Print fix-its in machine parseable form">;
239def fdiagnostics_show_name : Flag<"-fdiagnostics-show-name">,
240  HelpText<"Print diagnostic name">;
241def fdiagnostics_show_option : Flag<"-fdiagnostics-show-option">,
242  HelpText<"Print option name with mappable diagnostics">;
243def fdiagnostics_show_category : Separate<"-fdiagnostics-show-category">,
244  HelpText<"Print diagnostic category">;
245def fdiagnostics_show_note_include_stack :
246  Flag<"-fdiagnostics-show-note-include-stack">,
247  HelpText<"Display include stacks for diagnostic notes">;
248def ftabstop : Separate<"-ftabstop">, MetaVarName<"<N>">,
249  HelpText<"Set the tab stop distance.">;
250def ferror_limit : Separate<"-ferror-limit">, MetaVarName<"<N>">,
251  HelpText<"Set the maximum number of errors to emit before stopping (0 = no limit).">;
252def fmacro_backtrace_limit : Separate<"-fmacro-backtrace-limit">, MetaVarName<"<N>">,
253  HelpText<"Set the maximum number of entries to print in a macro instantiation backtrace (0 = no limit).">;
254def ftemplate_backtrace_limit : Separate<"-ftemplate-backtrace-limit">, MetaVarName<"<N>">,
255  HelpText<"Set the maximum number of entries to print in a template instantiation backtrace (0 = no limit).">;
256def fmessage_length : Separate<"-fmessage-length">, MetaVarName<"<N>">,
257  HelpText<"Format message diagnostics so that they fit within N columns or fewer, when possible.">;
258def fcolor_diagnostics : Flag<"-fcolor-diagnostics">,
259  HelpText<"Use colors in diagnostics">;
260def Wno_rewrite_macros : Flag<"-Wno-rewrite-macros">,
261  HelpText<"Silence ObjC rewriting warnings">;
262def verify : Flag<"-verify">,
263  HelpText<"Verify emitted diagnostics and warnings">;
264
265//===----------------------------------------------------------------------===//
266// Frontend Options
267//===----------------------------------------------------------------------===//
268
269// This isn't normally used, it is just here so we can parse a
270// CompilerInvocation out of a driver-derived argument vector.
271def cc1 : Flag<"-cc1">;
272
273def ast_merge : Separate<"-ast-merge">,
274  MetaVarName<"<ast file>">,
275  HelpText<"Merge the given AST file into the translation unit being compiled.">;
276def code_completion_at : Separate<"-code-completion-at">,
277  MetaVarName<"<file>:<line>:<column>">,
278  HelpText<"Dump code-completion information at a location">;
279def remap_file : Separate<"-remap-file">,
280  MetaVarName<"<from>;<to>">,
281  HelpText<"Replace the contents of the <from> file with the contents of the <to> file">;
282def code_completion_at_EQ : Joined<"-code-completion-at=">,
283  Alias<code_completion_at>;
284def code_completion_macros : Flag<"-code-completion-macros">,
285  HelpText<"Include macros in code-completion results">;
286def code_completion_patterns : Flag<"-code-completion-patterns">,
287  HelpText<"Include code patterns in code-completion results">;
288def no_code_completion_globals : Flag<"-no-code-completion-globals">,
289  HelpText<"Do not include global declarations in code-completion results.">;
290def disable_free : Flag<"-disable-free">,
291  HelpText<"Disable freeing of memory on exit">;
292def help : Flag<"-help">,
293  HelpText<"Print this help text">;
294def _help : Flag<"--help">, Alias<help>;
295def x : Separate<"-x">, HelpText<"Input language type">;
296def o : Separate<"-o">, MetaVarName<"<path>">, HelpText<"Specify output file">;
297def load : Separate<"-load">, MetaVarName<"<dsopath>">,
298  HelpText<"Load the named plugin (dynamic shared object)">;
299def plugin : Separate<"-plugin">, MetaVarName<"<name>">,
300  HelpText<"Use the named plugin action instead of the default action (use \"help\" to list available options)">;
301def plugin_arg : JoinedAndSeparate<"-plugin-arg-">,
302    MetaVarName<"<name> <arg>">,
303    HelpText<"Pass <arg> to plugin <name>">;
304def add_plugin : Separate<"-add-plugin">, MetaVarName<"<name>">,
305  HelpText<"Use the named plugin action in addition to the default action">;
306def resource_dir : Separate<"-resource-dir">,
307  HelpText<"The directory which holds the compiler resource files">;
308def version : Flag<"-version">,
309  HelpText<"Print the compiler version">;
310def _version : Flag<"--version">, Alias<version>;
311
312def Action_Group : OptionGroup<"<action group>">;
313let Group = Action_Group in {
314
315def Eonly : Flag<"-Eonly">,
316  HelpText<"Just run preprocessor, no output (for timings)">;
317def E : Flag<"-E">,
318  HelpText<"Run preprocessor, emit preprocessed file">;
319def dump_raw_tokens : Flag<"-dump-raw-tokens">,
320  HelpText<"Lex file in raw mode and dump raw tokens">;
321def analyze : Flag<"-analyze">,
322  HelpText<"Run static analysis engine">;
323def dump_tokens : Flag<"-dump-tokens">,
324  HelpText<"Run preprocessor, dump internal rep of tokens">;
325def init_only : Flag<"-init-only">,
326  HelpText<"Only execute frontend initialization">;
327def fsyntax_only : Flag<"-fsyntax-only">,
328  HelpText<"Run parser and perform semantic analysis">;
329def fixit : Flag<"-fixit">,
330  HelpText<"Apply fix-it advice to the input source">;
331def fixit_EQ : Joined<"-fixit=">,
332  HelpText<"Apply fix-it advice creating a file with the given suffix">;
333def print_preamble : Flag<"-print-preamble">,
334  HelpText<"Print the \"preamble\" of a file, which is a candidate for implicit"
335           " precompiled headers.">;
336def emit_html : Flag<"-emit-html">,
337  HelpText<"Output input source as HTML">;
338def ast_print : Flag<"-ast-print">,
339  HelpText<"Build ASTs and then pretty-print them">;
340def ast_dump : Flag<"-ast-dump">,
341  HelpText<"Build ASTs and then debug dump them">;
342def ast_dump_xml : Flag<"-ast-dump-xml">,
343  HelpText<"Build ASTs and then debug dump them in a verbose XML format">;
344def ast_view : Flag<"-ast-view">,
345  HelpText<"Build ASTs and view them with GraphViz">;
346def boostcon : Flag<"-boostcon">,
347  HelpText<"BoostCon workshop mode">;
348def print_decl_contexts : Flag<"-print-decl-contexts">,
349  HelpText<"Print DeclContexts and their Decls">;
350def emit_pth : Flag<"-emit-pth">,
351  HelpText<"Generate pre-tokenized header file">;
352def emit_pch : Flag<"-emit-pch">,
353  HelpText<"Generate pre-compiled header file">;
354def S : Flag<"-S">,
355  HelpText<"Emit native assembly code">;
356def emit_llvm : Flag<"-emit-llvm">,
357  HelpText<"Build ASTs then convert to LLVM, emit .ll file">;
358def emit_llvm_bc : Flag<"-emit-llvm-bc">,
359  HelpText<"Build ASTs then convert to LLVM, emit .bc file">;
360def emit_llvm_only : Flag<"-emit-llvm-only">,
361  HelpText<"Build ASTs and convert to LLVM, discarding output">;
362def emit_codegen_only : Flag<"-emit-codegen-only">,
363  HelpText<"Generate machine code, but discard output">;
364def emit_obj : Flag<"-emit-obj">,
365  HelpText<"Emit native object files">;
366def rewrite_test : Flag<"-rewrite-test">,
367  HelpText<"Rewriter playground">;
368def rewrite_objc : Flag<"-rewrite-objc">,
369  HelpText<"Rewrite ObjC into C (code rewriter example)">;
370def rewrite_macros : Flag<"-rewrite-macros">,
371  HelpText<"Expand macros without full preprocessing">;
372
373def create_module : Flag<"-create-module">,
374  HelpText<"Create a module definition file">;
375}
376
377def import_module : Separate<"-import-module">,
378  HelpText<"Import a module definition file">;
379
380def working_directory : JoinedOrSeparate<"-working-directory">,
381  HelpText<"Resolve file paths relative to the specified directory">;
382def working_directory_EQ : Joined<"-working-directory=">,
383  Alias<working_directory>;
384
385def relocatable_pch : Flag<"-relocatable-pch">,
386  HelpText<"Whether to build a relocatable precompiled header">;
387def chained_pch : Flag<"-chained-pch">,
388  HelpText<"Whether to chain the new precompiled header to the old one.">;
389def print_stats : Flag<"-print-stats">,
390  HelpText<"Print performance metrics and statistics">;
391def ftime_report : Flag<"-ftime-report">,
392  HelpText<"Print the amount of time each phase of compilation takes">;
393def fdump_record_layouts : Flag<"-fdump-record-layouts">,
394  HelpText<"Dump record layout information">;
395def fix_what_you_can : Flag<"-fix-what-you-can">,
396  HelpText<"Apply fix-it advice even in the presence of unfixable errors">;
397
398// Generic forwarding to LLVM options. This should only be used for debugging
399// and experimental features.
400def mllvm : Separate<"-mllvm">,
401  HelpText<"Additional arguments to forward to LLVM's option processing">;
402
403//===----------------------------------------------------------------------===//
404// Language Options
405//===----------------------------------------------------------------------===//
406
407def fno_builtin : Flag<"-fno-builtin">,
408  HelpText<"Disable implicit builtin knowledge of functions">;
409def faltivec : Flag<"-faltivec">,
410  HelpText<"Enable AltiVec vector initializer syntax">;
411def fno_access_control : Flag<"-fno-access-control">,
412  HelpText<"Disable C++ access control">;
413def fno_assume_sane_operator_new : Flag<"-fno-assume-sane-operator-new">,
414  HelpText<"Don't assume that C++'s global operator new can't alias any pointer">;
415def fgnu_keywords : Flag<"-fgnu-keywords">,
416  HelpText<"Allow GNU-extension keywords regardless of language standard">;
417def fno_gnu_keywords : Flag<"-fno-gnu-keywords">,
418  HelpText<"Disallow GNU-extension keywords regardless of language standard">;
419def fdollars_in_identifiers : Flag<"-fdollars-in-identifiers">,
420  HelpText<"Allow '$' in identifiers">;
421def fno_dollars_in_identifiers : Flag<"-fno-dollars-in-identifiers">,
422  HelpText<"Disallow '$' in identifiers">;
423def femit_all_decls : Flag<"-femit-all-decls">,
424  HelpText<"Emit all declarations, even if unused">;
425def fblocks : Flag<"-fblocks">,
426  HelpText<"enable the 'blocks' language feature">;
427def fheinous_gnu_extensions : Flag<"-fheinous-gnu-extensions">;
428def fexceptions : Flag<"-fexceptions">,
429  HelpText<"Enable support for exception handling">;
430def fobjc_exceptions : Flag<"-fobjc-exceptions">,
431  HelpText<"Enable Objective-C exceptions">;
432def fcxx_exceptions : Flag<"-fcxx-exceptions">,
433  HelpText<"Enable C++ exceptions">;
434def fsjlj_exceptions : Flag<"-fsjlj-exceptions">,
435  HelpText<"Use SjLj style exceptions">;
436def ffreestanding : Flag<"-ffreestanding">,
437  HelpText<"Assert that the compilation takes place in a freestanding environment">;
438def fgnu_runtime : Flag<"-fgnu-runtime">,
439  HelpText<"Generate output compatible with the standard GNU Objective-C runtime">;
440def fhidden_weak_vtables : Flag<"-fhidden-weak-vtables">,
441  HelpText<"Generate weak vtables and RTTI with hidden visibility">;
442def std_EQ : Joined<"-std=">,
443  HelpText<"Language standard to compile for">;
444def fmath_errno : Flag<"-fmath-errno">,
445  HelpText<"Require math functions to indicate errors by setting errno">;
446def fms_extensions : Flag<"-fms-extensions">,
447  HelpText<"Accept some non-standard constructs used in Microsoft header files ">;
448def fmsc_version : Joined<"-fmsc-version=">,
449  HelpText<"Version of the Microsoft C/C++ compiler to report in _MSC_VER (0 = don't define it (default))">;
450def fborland_extensions : Flag<"-fborland-extensions">,
451  HelpText<"Accept non-standard constructs supported by the Borland compiler">;
452def main_file_name : Separate<"-main-file-name">,
453  HelpText<"Main file name to use for debug info">;
454def fno_elide_constructors : Flag<"-fno-elide-constructors">,
455  HelpText<"Disable C++ copy constructor elision">;
456def fno_lax_vector_conversions : Flag<"-fno-lax-vector-conversions">,
457  HelpText<"Disallow implicit conversions between vectors with a different number of elements or different element types">;
458def fno_operator_names : Flag<"-fno-operator-names">,
459  HelpText<"Do not treat C++ operator name keywords as synonyms for operators">;
460def fno_signed_char : Flag<"-fno-signed-char">,
461  HelpText<"Char is unsigned">;
462def fno_spell_checking : Flag<"-fno-spell-checking">,
463  HelpText<"Disable spell-checking">;
464def fno_use_cxa_atexit : Flag<"-fno-use-cxa-atexit">,
465  HelpText<"Don't use __cxa_atexit for calling destructors">;
466def fconstant_string_class : Separate<"-fconstant-string-class">,
467  MetaVarName<"<class name>">,
468  HelpText<"Specify the class to use for constant Objective-C string objects.">;
469def fno_constant_cfstrings : Flag<"-fno-constant-cfstrings">,
470  HelpText<"Enable creation of CodeFoundation-type constant strings">;
471def fobjc_gc : Flag<"-fobjc-gc">,
472  HelpText<"Enable Objective-C garbage collection">;
473def fobjc_gc_only : Flag<"-fobjc-gc-only">,
474  HelpText<"Use GC exclusively for Objective-C related memory management">;
475def fapple_kext : Flag<"-fapple-kext">,
476  HelpText<"Use Apple's kernel extensions ABI">;
477def fobjc_dispatch_method_EQ : Joined<"-fobjc-dispatch-method=">,
478  HelpText<"Objective-C dispatch method to use">;
479def fobjc_default_synthesize_properties : Flag<"-fobjc-default-synthesize-properties">,
480  HelpText<"enable the default synthesis of Objective-C properties">;
481def print_ivar_layout : Flag<"-print-ivar-layout">,
482  HelpText<"Enable Objective-C Ivar layout bitmap print trace">;
483def fobjc_nonfragile_abi : Flag<"-fobjc-nonfragile-abi">,
484  HelpText<"enable objective-c's nonfragile abi">;
485def ftrapv : Flag<"-ftrapv">,
486  HelpText<"Trap on integer overflow">;
487def ftrapv_handler : Separate<"-ftrapv-handler">,
488  MetaVarName<"<function name>">,
489  HelpText<"Specify the function to be called on overflow.">;
490def fwrapv : Flag<"-fwrapv">,
491  HelpText<"Treat signed integer overflow as two's complement">;
492def pic_level : Separate<"-pic-level">,
493  HelpText<"Value for __PIC__">;
494def pthread : Flag<"-pthread">,
495  HelpText<"Support POSIX threads in generated code">;
496def fpascal_strings : Flag<"-fpascal-strings">,
497  HelpText<"Recognize and construct Pascal-style string literals">;
498def fno_rtti : Flag<"-fno-rtti">,
499  HelpText<"Disable generation of rtti information">;
500def fno_validate_pch : Flag<"-fno-validate-pch">,
501  HelpText<"Disable validation of precompiled headers">;
502def dump_deserialized_pch_decls : Flag<"-dump-deserialized-decls">,
503  HelpText<"Dump declarations that are deserialized from PCH, for testing">;
504def error_on_deserialized_pch_decl : Separate<"-error-on-deserialized-decl">,
505  HelpText<"Emit error if a specific declaration is deserialized from PCH, for testing">;
506def fshort_wchar : Flag<"-fshort-wchar">,
507  HelpText<"Force wchar_t to be a short unsigned int">;
508def fshort_enums : Flag<"-fshort-enums">,
509  HelpText<"Allocate to an enum type only as many bytes as it needs for the declared range of possible values">;
510def static_define : Flag<"-static-define">,
511  HelpText<"Should __STATIC__ be defined">;
512def stack_protector : Separate<"-stack-protector">,
513  HelpText<"Enable stack protectors">;
514def fvisibility : Separate<"-fvisibility">,
515  HelpText<"Default symbol visibility">;
516def fvisibility_inlines_hidden : Flag<"-fvisibility-inlines-hidden">,
517  HelpText<"Give inline C++ member functions default visibility by default">;
518def ftemplate_depth : Separate<"-ftemplate-depth">,
519  HelpText<"Maximum depth of recursive template instantiation">;
520def Wlarge_by_value_copy : Separate<"-Wlarge-by-value-copy">,
521  HelpText<"Warn if a function definition returns or accepts an object larger "
522           "in bytes that a given value">;
523def Wlarge_by_value_copy_EQ : Joined<"-Wlarge-by-value-copy=">,
524  Alias<Wlarge_by_value_copy>;
525def trigraphs : Flag<"-trigraphs">,
526  HelpText<"Process trigraph sequences">;
527def fwritable_strings : Flag<"-fwritable-strings">,
528  HelpText<"Store string literals as writable data">;
529def fconst_strings : Flag<"-fconst-strings">,
530  HelpText<"Use a const qualified type for string literals in C and ObjC">;
531def fno_const_strings : Flag<"-fno-const-strings">,
532  HelpText<"Don't use a const qualified type for string literals in C and ObjC">;
533def fno_bitfield_type_align : Flag<"-fno-bitfield-type-align">,
534  HelpText<"Ignore bit-field types when aligning structures">;
535def traditional_cpp : Flag<"-traditional-cpp">,
536  HelpText<"Enable some traditional CPP emulation">;
537def ffake_address_space_map : Flag<"-ffake-address-space-map">,
538  HelpText<"Use a fake address space map; OpenCL testing purposes only">;
539def fdelayed_template_parsing : Flag<"-fdelayed-template-parsing">,
540  HelpText<"Parse templated function definitions at the end of the "
541           "translation unit ">;
542def funknown_anytype : Flag<"-funknown-anytype">,
543  HelpText<"Enable parser support for the __unknown_anytype type; for testing purposes only">;
544def fdeprecated_macro : Flag<"-fdeprecated-macro">,
545  HelpText<"Defines the __DEPRECATED macro">;
546def fno_deprecated_macro : Flag<"-fno-deprecated-macro">,
547  HelpText<"Undefines the __DEPRECATED macro">;
548
549//===----------------------------------------------------------------------===//
550// Header Search Options
551//===----------------------------------------------------------------------===//
552
553def nostdinc : Flag<"-nostdinc">,
554  HelpText<"Disable standard #include directories">;
555def nostdincxx : Flag<"-nostdinc++">,
556  HelpText<"Disable standard #include directories for the C++ standard library">;
557def nobuiltininc : Flag<"-nobuiltininc">,
558  HelpText<"Disable builtin #include directories">;
559def F : JoinedOrSeparate<"-F">, MetaVarName<"<directory>">,
560  HelpText<"Add directory to framework include search path">;
561def I : JoinedOrSeparate<"-I">, MetaVarName<"<directory>">,
562  HelpText<"Add directory to include search path">;
563def idirafter : JoinedOrSeparate<"-idirafter">, MetaVarName<"<directory>">,
564  HelpText<"Add directory to AFTER include search path">;
565def iquote : JoinedOrSeparate<"-iquote">, MetaVarName<"<directory>">,
566  HelpText<"Add directory to QUOTE include search path">;
567def cxx_isystem : JoinedOrSeparate<"-cxx-isystem">, MetaVarName<"<directory>">,
568  HelpText<"Add directory to the C++ SYSTEM include search path">;
569def isystem : JoinedOrSeparate<"-isystem">, MetaVarName<"<directory>">,
570  HelpText<"Add directory to SYSTEM include search path">;
571def iwithsysroot : JoinedOrSeparate<"-iwithsysroot">,MetaVarName<"<directory>">,
572  HelpText<"Add directory to SYSTEM include search path, "
573           "absolute paths are relative to -isysroot">;
574def iprefix : JoinedOrSeparate<"-iprefix">, MetaVarName<"<prefix>">,
575  HelpText<"Set the -iwithprefix/-iwithprefixbefore prefix">;
576def iwithprefix : JoinedOrSeparate<"-iwithprefix">, MetaVarName<"<dir>">,
577  HelpText<"Set directory to SYSTEM include search path with prefix">;
578def iwithprefixbefore : JoinedOrSeparate<"-iwithprefixbefore">,
579  MetaVarName<"<dir>">,
580  HelpText<"Set directory to include search path with prefix">;
581def isysroot : JoinedOrSeparate<"-isysroot">, MetaVarName<"<dir>">,
582  HelpText<"Set the system root directory (usually /)">;
583def v : Flag<"-v">, HelpText<"Enable verbose output">;
584
585//===----------------------------------------------------------------------===//
586// Preprocessor Options
587//===----------------------------------------------------------------------===//
588
589def D : JoinedOrSeparate<"-D">, MetaVarName<"<macro>">,
590  HelpText<"Predefine the specified macro">;
591def include_ : JoinedOrSeparate<"-include">, MetaVarName<"<file>">, EnumName<"include">,
592  HelpText<"Include file before parsing">;
593def imacros : JoinedOrSeparate<"-imacros">, MetaVarName<"<file>">,
594  HelpText<"Include macros from file before parsing">;
595def include_pch : Separate<"-include-pch">, MetaVarName<"<file>">,
596  HelpText<"Include precompiled header file">;
597def include_pth : Separate<"-include-pth">, MetaVarName<"<file>">,
598  HelpText<"Include file before parsing">;
599def chain_include : Separate<"-chain-include">, MetaVarName<"<file>">,
600  HelpText<"Include and chain a header file after turning it into PCH">;
601def preamble_bytes_EQ : Joined<"-preamble-bytes=">,
602  HelpText<"Assume that the precompiled header is a precompiled preamble "
603           "covering the first N bytes of the main file">;
604def token_cache : Separate<"-token-cache">, MetaVarName<"<path>">,
605  HelpText<"Use specified token cache file">;
606def U : JoinedOrSeparate<"-U">, MetaVarName<"<macro>">,
607  HelpText<"Undefine the specified macro">;
608def undef : Flag<"-undef">, MetaVarName<"<macro>">,
609  HelpText<"undef all system defines">;
610def detailed_preprocessing_record : Flag<"-detailed-preprocessing-record">,
611  HelpText<"include a detailed record of preprocessing actions">;
612
613//===----------------------------------------------------------------------===//
614// Preprocessed Output Options
615//===----------------------------------------------------------------------===//
616
617def P : Flag<"-P">,
618  HelpText<"Disable linemarker output in -E mode">;
619def C : Flag<"-C">,
620  HelpText<"Enable comment output in -E mode">;
621def CC : Flag<"-CC">,
622  HelpText<"Enable comment output in -E mode, even from macro expansions">;
623def dM : Flag<"-dM">,
624  HelpText<"Print macro definitions in -E mode instead of normal output">;
625def dD : Flag<"-dD">,
626  HelpText<"Print macro definitions in -E mode in addition to normal output">;
627
628//===----------------------------------------------------------------------===//
629// OpenCL Options
630//===----------------------------------------------------------------------===//
631
632def cl_opt_disable : Flag<"-cl-opt-disable">,
633  HelpText<"OpenCL only. This option disables all optimizations. The default is optimizations are enabled.">;
634def cl_single_precision_constant : Flag<"-cl-single-precision-constant">,
635  HelpText<"OpenCL only. Treat double precision floating-point constant as single precision constant.">;
636def cl_finite_math_only : Flag<"-cl-finite-math-only">,
637  HelpText<"OpenCL only. Allow floating-point optimizations that assume arguments and results are not NaNs or +-Inf.">;
638def cl_unsafe_math_optimizations : Flag<"-cl-unsafe-math-optimizations">,
639  HelpText<"OpenCL only. Allow unsafe floating-point optimizations.  Also implies -cl-no-signed-zeros and -cl-mad-enable">;
640def cl_fast_relaxed_math : Flag<"-cl-fast-relaxed-math">,
641  HelpText<"OpenCL only. Sets -cl-finite-math-only and -cl-unsafe-math-optimizations, and defines __FAST_RELAXED_MATH__">;
642def cl_mad_enable : Flag<"-cl-mad-enable">,
643  HelpText<"OpenCL only. Enable less precise MAD instructions to be generated.">;
644def cl_std_EQ : Joined<"-cl-std=">,
645  HelpText<"OpenCL language standard to compile for">;
646