CC1Options.td revision 773303a505c23d73da624f1e6abcf41a393dad2b
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_purge : Separate<"-analyzer-purge">,
61  HelpText<"Source Code Analysis - Dead Symbol Removal Frequency">;
62def analyzer_purge_EQ : Joined<"-analyzer-purge=">, Alias<analyzer_purge>;
63
64def analyzer_opt_analyze_headers : Flag<"-analyzer-opt-analyze-headers">,
65  HelpText<"Force the static analyzer to analyze functions defined in header files">;
66def analyzer_opt_analyze_nested_blocks : Flag<"-analyzer-opt-analyze-nested-blocks">,
67  HelpText<"Analyze the definitions of blocks in addition to functions">;
68def analyzer_display_progress : Flag<"-analyzer-display-progress">,
69  HelpText<"Emit verbose output about the analyzer's progress">;
70def analyze_function : Separate<"-analyze-function">,
71  HelpText<"Run analysis on specific function">;
72def analyze_function_EQ : Joined<"-analyze-function=">, Alias<analyze_function>;
73def analyzer_eagerly_assume : Flag<"-analyzer-eagerly-assume">,
74  HelpText<"Eagerly assume the truth/falseness of some symbolic constraints">;
75def analyzer_no_eagerly_trim_egraph : Flag<"-analyzer-no-eagerly-trim-egraph">,
76  HelpText<"Don't eagerly remove uninteresting ExplodedNodes from the ExplodedGraph">;
77def trim_egraph : Flag<"-trim-egraph">,
78  HelpText<"Only show error-related paths in the analysis graph">;
79def analyzer_viz_egraph_graphviz : Flag<"-analyzer-viz-egraph-graphviz">,
80  HelpText<"Display exploded graph using GraphViz">;
81def analyzer_viz_egraph_ubigraph : Flag<"-analyzer-viz-egraph-ubigraph">,
82  HelpText<"Display exploded graph using Ubigraph">;
83def analyzer_inline_call : Flag<"-analyzer-inline-call">,
84  HelpText<"Experimental transfer function inlining callees when its definition is available.">;
85def analyzer_max_nodes : Separate<"-analyzer-max-nodes">,
86  HelpText<"The maximum number of nodes the analyzer can generate (150000 default, 0 = no limit)">;
87def analyzer_max_loop : Separate<"-analyzer-max-loop">,
88  HelpText<"The maximum number of times the analyzer will go through a loop">;
89
90def analyzer_checker : Separate<"-analyzer-checker">,
91  HelpText<"Choose analyzer checkers to enable">;
92def analyzer_checker_EQ : Joined<"-analyzer-checker=">,
93  Alias<analyzer_checker>;
94
95def analyzer_disable_checker : Separate<"-analyzer-disable-checker">,
96  HelpText<"Choose analyzer checkers to disable">;
97def analyzer_disable_checker_EQ : Joined<"-analyzer-disable-checker=">,
98  Alias<analyzer_disable_checker>;
99
100def analyzer_checker_help : Flag<"-analyzer-checker-help">,
101  HelpText<"Display the list of analyzer checkers that are available">;
102
103//===----------------------------------------------------------------------===//
104// Migrator Options
105//===----------------------------------------------------------------------===//
106def migrator_no_nsalloc_error : Flag<"-no-ns-alloc-error">,
107  HelpText<"Do not error on use of NSAllocateCollectable/NSReallocateCollectable">;
108
109def migrator_no_finalize_removal : Flag<"-no-finalize-removal">,
110  HelpText<"Do not remove finalize method in gc mode">;
111
112//===----------------------------------------------------------------------===//
113// CodeGen Options
114//===----------------------------------------------------------------------===//
115
116def disable_llvm_optzns : Flag<"-disable-llvm-optzns">,
117  HelpText<"Don't run LLVM optimization passes">;
118def disable_llvm_verifier : Flag<"-disable-llvm-verifier">,
119  HelpText<"Don't run the LLVM IR verifier pass">;
120def disable_red_zone : Flag<"-disable-red-zone">,
121  HelpText<"Do not emit code that uses the red zone.">;
122def fdebug_compilation_dir : Separate<"-fdebug-compilation-dir">,
123  HelpText<"The compilation directory to embed in the debug info.">;
124def dwarf_debug_flags : Separate<"-dwarf-debug-flags">,
125  HelpText<"The string to embed in the Dwarf debug flags record.">;
126def faddress_sanitizer: Flag<"-faddress-sanitizer">,
127  HelpText<"Enable AddressSanitizer instrumentation (memory error detection)">;
128def fforbid_guard_variables : Flag<"-fforbid-guard-variables">,
129  HelpText<"Emit an error if a C++ static local initializer would need a guard variable">;
130def g : Flag<"-g">, HelpText<"Generate source level debug information">;
131def fno_dwarf2_cfi_asm : Flag<"-fno-dwarf2-cfi-asm">,
132  HelpText<"Don't use the cfi directives">;
133def fno_dwarf_directory_asm : Flag<"-fno-dwarf-directory-asm">,
134  HelpText<"Don't separate directory and filename in .file directives">;
135def fcatch_undefined_behavior : Flag<"-fcatch-undefined-behavior">,
136  HelpText<"Generate runtime checks for undefined behavior.">;
137def flimit_debug_info : Flag<"-flimit-debug-info">,
138  HelpText<"Limit debug information produced to reduce size of debug binary">;
139def fno_common : Flag<"-fno-common">,
140  HelpText<"Compile common globals like normal definitions">;
141def no_implicit_float : Flag<"-no-implicit-float">,
142  HelpText<"Don't generate implicit floating point instructions (x86-only)">;
143def finstrument_functions : Flag<"-finstrument-functions">,
144  HelpText<"Generate calls to instrument function entry and exit">;
145def fno_limit_debug_info : Flag<"-fno-limit-debug-info">,
146  HelpText<"Do not limit debug information produced to reduce size of debug binary">;
147def fno_merge_all_constants : Flag<"-fno-merge-all-constants">,
148  HelpText<"Disallow merging of constants.">;
149def fno_threadsafe_statics : Flag<"-fno-threadsafe-statics">,
150  HelpText<"Do not emit code to make initialization of local statics thread safe">;
151def fdump_vtable_layouts : Flag<"-fdump-vtable-layouts">,
152  HelpText<"Dump the layouts of all vtables that will be emitted in a translation unit">;
153def ffunction_sections : Flag<"-ffunction-sections">,
154  HelpText<"Place each function in its own section (ELF Only)">;
155def fdata_sections : Flag<"-fdata-sections">,
156  HelpText<"Place each data in its own section (ELF Only)">;
157def funroll_loops : Flag<"-funroll-loops">,
158  HelpText<"Turn on loop unroller">;
159def femit_coverage_notes : Flag<"-femit-coverage-notes">,
160  HelpText<"Emit a gcov coverage notes file when compiling.">;
161def femit_coverage_data: Flag<"-femit-coverage-data">,
162  HelpText<"Instrument the program to emit gcov coverage data when run.">;
163def coverage_file : Separate<"-coverage-file">,
164  HelpText<"Emit coverage data to this filename. The extension will be replaced.">;
165def coverage_file_EQ : Joined<"-coverage-file=">, Alias<coverage_file>;
166def fuse_register_sized_bitfield_access: Flag<"-fuse-register-sized-bitfield-access">,
167  HelpText<"Use register sized accesses to bit-fields, when possible.">;
168def relaxed_aliasing : Flag<"-relaxed-aliasing">,
169  HelpText<"Turn off Type Based Alias Analysis">;
170def masm_verbose : Flag<"-masm-verbose">,
171  HelpText<"Generate verbose assembly output">;
172def mcode_model : Separate<"-mcode-model">,
173  HelpText<"The code model to use">;
174def mdebug_pass : Separate<"-mdebug-pass">,
175  HelpText<"Enable additional debug output">;
176def mdisable_fp_elim : Flag<"-mdisable-fp-elim">,
177  HelpText<"Disable frame pointer elimination optimization">;
178def mdisable_tail_calls : Flag<"-mdisable-tail-calls">,
179  HelpText<"Disable tail call optimization, keeping the call stack accurate">;
180def menable_no_infinities : Flag<"-menable-no-infs">,
181  HelpText<"Allow optimization to assume there are no infinities.">;
182def menable_no_nans : Flag<"-menable-no-nans">,
183  HelpText<"Allow optimization to assume there are no NaNs.">;
184def menable_unsafe_fp_math : Flag<"-menable-unsafe-fp-math">,
185  HelpText<"Allow unsafe floating-point math optimizations which may decrease "
186           "precision">;
187def mfloat_abi : Separate<"-mfloat-abi">,
188  HelpText<"The float ABI to use">;
189def mno_global_merge : Flag<"-mno-global-merge">,
190  HelpText<"Disable merging of globals">;
191def mlimit_float_precision : Separate<"-mlimit-float-precision">,
192  HelpText<"Limit float precision to the given value">;
193def mno_exec_stack : Flag<"-mnoexecstack">,
194  HelpText<"Mark the file as not needing an executable stack">;
195def mno_zero_initialized_in_bss : Flag<"-mno-zero-initialized-in-bss">,
196  HelpText<"Do not put zero initialized data in the BSS">;
197def momit_leaf_frame_pointer : Flag<"-momit-leaf-frame-pointer">,
198  HelpText<"Omit frame pointer setup for leaf functions.">;
199def msoft_float : Flag<"-msoft-float">,
200  HelpText<"Use software floating point">;
201def backend_option : Separate<"-backend-option">,
202  HelpText<"Additional arguments to forward to LLVM backend (during code gen)">;
203def mregparm : Separate<"-mregparm">,
204  HelpText<"Limit the number of registers available for integer arguments">;
205def mrelax_all : Flag<"-mrelax-all">,
206  HelpText<"(integrated-as) Relax all machine instructions">;
207def msave_temp_labels : Flag<"-msave-temp-labels">,
208  HelpText<"(integrated-as) Save temporary labels">;
209def mrtd: Flag<"-mrtd">,
210  HelpText<"Make StdCall calling convention the default">;
211def mrelocation_model : Separate<"-mrelocation-model">,
212  HelpText<"The relocation model to use">;
213def munwind_tables : Flag<"-munwind-tables">,
214  HelpText<"Generate unwinding tables for all functions">;
215def mconstructor_aliases : Flag<"-mconstructor-aliases">,
216  HelpText<"Emit complete constructors and destructors as aliases when possible">;
217def mms_bitfields : Flag<"-mms-bitfields">,
218  HelpText<"Set the default structure layout to be compatible with the Microsoft compiler standard.">;
219def mstackrealign : Flag<"-mstackrealign">,
220  HelpText<"Force realign the stack at entry to every function.">;
221def mstack_alignment : Joined<"-mstack-alignment=">,
222  HelpText<"Set the stack alignment">;
223def mlink_bitcode_file : Separate<"-mlink-bitcode-file">,
224  HelpText<"Link the given bitcode file before performing optimizations.">;
225def O : Joined<"-O">, HelpText<"Optimization level">;
226def Os : Flag<"-Os">, HelpText<"Optimize for size">;
227def Oz : Flag<"-Oz">, HelpText<"Optimize for size, regardless of performance">;
228def pg : Flag<"-pg">, HelpText<"Enable mcount instrumentation">;
229
230//===----------------------------------------------------------------------===//
231// Dependency Output Options
232//===----------------------------------------------------------------------===//
233
234def dependency_file : Separate<"-dependency-file">,
235  HelpText<"Filename (or -) to write dependency output to">;
236def dependency_dot : Separate<"-dependency-dot">,
237  HelpText<"Filename to write DOT-formatted header dependencies to">;
238def sys_header_deps : Flag<"-sys-header-deps">,
239  HelpText<"Include system headers in dependency output">;
240def header_include_file : Separate<"-header-include-file">,
241  HelpText<"Filename (or -) to write header include output to">;
242def H : Flag<"-H">,
243  HelpText<"Show header includes and nesting depth">;
244def MQ : Separate<"-MQ">, HelpText<"Specify target to quote for dependency">;
245def MT : Separate<"-MT">, HelpText<"Specify target for dependency">;
246def MP : Flag<"-MP">,
247  HelpText<"Create phony target for each dependency (other than main file)">;
248def MG : Flag<"-MG">, HelpText<"Add missing headers to dependency list">;
249
250//===----------------------------------------------------------------------===//
251// Diagnostic Options
252//===----------------------------------------------------------------------===//
253
254def dump_build_information : Separate<"-dump-build-information">,
255  MetaVarName<"<filename>">,
256  HelpText<"output a dump of some build information to a file">;
257def diagnostic_log_file : Separate<"-diagnostic-log-file">,
258  HelpText<"Filename (or -) to log diagnostics to">;
259def diagnostic_serialized_file : Separate<"-serialize-diagnostic-file">,
260  MetaVarName<"<filename>">,
261  HelpText<"File for serializing diagnostics in a binary format">;
262def fno_show_column : Flag<"-fno-show-column">,
263  HelpText<"Do not include column number on diagnostics">;
264def fshow_column : Flag<"-fshow-column">,
265  HelpText<"Include column number on diagnostics">;
266def fno_show_source_location : Flag<"-fno-show-source-location">,
267  HelpText<"Do not include source location information with diagnostics">;
268def fshow_overloads_EQ : Joined<"-fshow-overloads=">,
269  HelpText<"Which overload candidates to show when overload resolution fails: "
270           "best|all; defaults to all">;
271def fno_caret_diagnostics : Flag<"-fno-caret-diagnostics">,
272  HelpText<"Do not include source line and caret with diagnostics">;
273def fno_diagnostics_fixit_info : Flag<"-fno-diagnostics-fixit-info">,
274  HelpText<"Do not include fixit information in diagnostics">;
275def fno_diagnostics_show_note_include_stack :
276  Flag<"-fno-diagnostics-show-note-include-stack">,
277  HelpText<"Display include stacks for diagnostic notes">;
278def w : Flag<"-w">, HelpText<"Suppress all warnings">;
279def pedantic : Flag<"-pedantic">;
280def pedantic_errors : Flag<"-pedantic-errors">;
281
282// This gets all -W options, including -Werror, -W[no-]system-headers, etc.  The
283// driver has stripped off -Wa,foo etc.  The driver has also translated -W to
284// -Wextra, so we don't need to worry about it.
285def W : Joined<"-W">;
286
287def fdiagnostics_print_source_range_info : Flag<"-fdiagnostics-print-source-range-info">,
288  HelpText<"Print source range spans in numeric form">;
289def fdiagnostics_parseable_fixits : Flag<"-fdiagnostics-parseable-fixits">,
290  HelpText<"Print fix-its in machine parseable form">;
291def fdiagnostics_show_name : Flag<"-fdiagnostics-show-name">,
292  HelpText<"Print diagnostic name">;
293def fdiagnostics_show_option : Flag<"-fdiagnostics-show-option">,
294  HelpText<"Print option name with mappable diagnostics">;
295def fdiagnostics_format : Separate<"-fdiagnostics-format">,
296  HelpText<"Change diagnostic formatting to match IDE and command line tools">;
297def fdiagnostics_show_category : Separate<"-fdiagnostics-show-category">,
298  HelpText<"Print diagnostic category">;
299def fdiagnostics_show_note_include_stack :
300  Flag<"-fdiagnostics-show-note-include-stack">,
301  HelpText<"Display include stacks for diagnostic notes">;
302def ftabstop : Separate<"-ftabstop">, MetaVarName<"<N>">,
303  HelpText<"Set the tab stop distance.">;
304def ferror_limit : Separate<"-ferror-limit">, MetaVarName<"<N>">,
305  HelpText<"Set the maximum number of errors to emit before stopping (0 = no limit).">;
306def fmacro_backtrace_limit : Separate<"-fmacro-backtrace-limit">, MetaVarName<"<N>">,
307  HelpText<"Set the maximum number of entries to print in a macro expansion backtrace (0 = no limit).">;
308def ftemplate_backtrace_limit : Separate<"-ftemplate-backtrace-limit">, MetaVarName<"<N>">,
309  HelpText<"Set the maximum number of entries to print in a template instantiation backtrace (0 = no limit).">;
310def fconstexpr_backtrace_limit : Separate<"-fconstexpr-backtrace-limit">, MetaVarName<"<N>">,
311  HelpText<"Set the maximum number of entries to print in a constexpr evaluation backtrace (0 = no limit).">;
312def fmessage_length : Separate<"-fmessage-length">, MetaVarName<"<N>">,
313  HelpText<"Format message diagnostics so that they fit within N columns or fewer, when possible.">;
314def fcolor_diagnostics : Flag<"-fcolor-diagnostics">,
315  HelpText<"Use colors in diagnostics">;
316def Wno_rewrite_macros : Flag<"-Wno-rewrite-macros">,
317  HelpText<"Silence ObjC rewriting warnings">;
318def verify : Flag<"-verify">,
319  HelpText<"Verify emitted diagnostics and warnings">;
320
321//===----------------------------------------------------------------------===//
322// Frontend Options
323//===----------------------------------------------------------------------===//
324
325// This isn't normally used, it is just here so we can parse a
326// CompilerInvocation out of a driver-derived argument vector.
327def cc1 : Flag<"-cc1">;
328
329def ast_merge : Separate<"-ast-merge">,
330  MetaVarName<"<ast file>">,
331  HelpText<"Merge the given AST file into the translation unit being compiled.">;
332def code_completion_at : Separate<"-code-completion-at">,
333  MetaVarName<"<file>:<line>:<column>">,
334  HelpText<"Dump code-completion information at a location">;
335def remap_file : Separate<"-remap-file">,
336  MetaVarName<"<from>;<to>">,
337  HelpText<"Replace the contents of the <from> file with the contents of the <to> file">;
338def code_completion_at_EQ : Joined<"-code-completion-at=">,
339  Alias<code_completion_at>;
340def code_completion_macros : Flag<"-code-completion-macros">,
341  HelpText<"Include macros in code-completion results">;
342def code_completion_patterns : Flag<"-code-completion-patterns">,
343  HelpText<"Include code patterns in code-completion results">;
344def no_code_completion_globals : Flag<"-no-code-completion-globals">,
345  HelpText<"Do not include global declarations in code-completion results.">;
346def disable_free : Flag<"-disable-free">,
347  HelpText<"Disable freeing of memory on exit">;
348def help : Flag<"-help">,
349  HelpText<"Print this help text">;
350def _help : Flag<"--help">, Alias<help>;
351def x : Separate<"-x">, HelpText<"Input language type">;
352def o : Separate<"-o">, MetaVarName<"<path>">, HelpText<"Specify output file">;
353def load : Separate<"-load">, MetaVarName<"<dsopath>">,
354  HelpText<"Load the named plugin (dynamic shared object)">;
355def plugin : Separate<"-plugin">, MetaVarName<"<name>">,
356  HelpText<"Use the named plugin action instead of the default action (use \"help\" to list available options)">;
357def plugin_arg : JoinedAndSeparate<"-plugin-arg-">,
358    MetaVarName<"<name> <arg>">,
359    HelpText<"Pass <arg> to plugin <name>">;
360def add_plugin : Separate<"-add-plugin">, MetaVarName<"<name>">,
361  HelpText<"Use the named plugin action in addition to the default action">;
362def resource_dir : Separate<"-resource-dir">,
363  HelpText<"The directory which holds the compiler resource files">;
364def version : Flag<"-version">,
365  HelpText<"Print the compiler version">;
366def _version : Flag<"--version">, Alias<version>;
367
368def Action_Group : OptionGroup<"<action group>">;
369let Group = Action_Group in {
370
371def Eonly : Flag<"-Eonly">,
372  HelpText<"Just run preprocessor, no output (for timings)">;
373def E : Flag<"-E">,
374  HelpText<"Run preprocessor, emit preprocessed file">;
375def dump_raw_tokens : Flag<"-dump-raw-tokens">,
376  HelpText<"Lex file in raw mode and dump raw tokens">;
377def analyze : Flag<"-analyze">,
378  HelpText<"Run static analysis engine">;
379def dump_tokens : Flag<"-dump-tokens">,
380  HelpText<"Run preprocessor, dump internal rep of tokens">;
381def init_only : Flag<"-init-only">,
382  HelpText<"Only execute frontend initialization">;
383def fsyntax_only : Flag<"-fsyntax-only">,
384  HelpText<"Run parser and perform semantic analysis">;
385def fixit : Flag<"-fixit">,
386  HelpText<"Apply fix-it advice to the input source">;
387def fixit_EQ : Joined<"-fixit=">,
388  HelpText<"Apply fix-it advice creating a file with the given suffix">;
389def print_preamble : Flag<"-print-preamble">,
390  HelpText<"Print the \"preamble\" of a file, which is a candidate for implicit"
391           " precompiled headers.">;
392def emit_html : Flag<"-emit-html">,
393  HelpText<"Output input source as HTML">;
394def ast_print : Flag<"-ast-print">,
395  HelpText<"Build ASTs and then pretty-print them">;
396def ast_dump : Flag<"-ast-dump">,
397  HelpText<"Build ASTs and then debug dump them">;
398def ast_dump_xml : Flag<"-ast-dump-xml">,
399  HelpText<"Build ASTs and then debug dump them in a verbose XML format">;
400def ast_view : Flag<"-ast-view">,
401  HelpText<"Build ASTs and view them with GraphViz">;
402def print_decl_contexts : Flag<"-print-decl-contexts">,
403  HelpText<"Print DeclContexts and their Decls">;
404def emit_module : Flag<"-emit-module">,
405  HelpText<"Generate pre-compiled module file from a module map">;
406def emit_pth : Flag<"-emit-pth">,
407  HelpText<"Generate pre-tokenized header file">;
408def emit_pch : Flag<"-emit-pch">,
409  HelpText<"Generate pre-compiled header file">;
410def S : Flag<"-S">,
411  HelpText<"Emit native assembly code">;
412def emit_llvm : Flag<"-emit-llvm">,
413  HelpText<"Build ASTs then convert to LLVM, emit .ll file">;
414def emit_llvm_bc : Flag<"-emit-llvm-bc">,
415  HelpText<"Build ASTs then convert to LLVM, emit .bc file">;
416def emit_llvm_only : Flag<"-emit-llvm-only">,
417  HelpText<"Build ASTs and convert to LLVM, discarding output">;
418def emit_codegen_only : Flag<"-emit-codegen-only">,
419  HelpText<"Generate machine code, but discard output">;
420def emit_obj : Flag<"-emit-obj">,
421  HelpText<"Emit native object files">;
422def rewrite_test : Flag<"-rewrite-test">,
423  HelpText<"Rewriter playground">;
424def rewrite_objc : Flag<"-rewrite-objc">,
425  HelpText<"Rewrite ObjC into C (code rewriter example)">;
426def rewrite_macros : Flag<"-rewrite-macros">,
427  HelpText<"Expand macros without full preprocessing">;
428}
429
430def arcmt_check : Flag<"-arcmt-check">,
431  HelpText<"Check for ARC migration issues that need manual handling">;
432def arcmt_modify : Flag<"-arcmt-modify">,
433  HelpText<"Apply modifications to files to conform to ARC">;
434def arcmt_migrate : Flag<"-arcmt-migrate">,
435  HelpText<"Apply modifications and produces temporary files that conform to ARC">;
436def arcmt_migrate_directory : Separate<"-arcmt-migrate-directory">,
437  HelpText<"Directory for temporary files produced during ARC migration">;
438def arcmt_migrate_report_output : Separate<"-arcmt-migrate-report-output">,
439  HelpText<"Output path for the plist report">;
440def arcmt_migrate_emit_arc_errors : Flag<"-arcmt-migrate-emit-errors">,
441  HelpText<"Emit ARC errors even if the migrator can fix them">;
442
443def working_directory : JoinedOrSeparate<"-working-directory">,
444  HelpText<"Resolve file paths relative to the specified directory">;
445def working_directory_EQ : Joined<"-working-directory=">,
446  Alias<working_directory>;
447
448def relocatable_pch : Flag<"-relocatable-pch">,
449  HelpText<"Whether to build a relocatable precompiled header">;
450def print_stats : Flag<"-print-stats">,
451  HelpText<"Print performance metrics and statistics">;
452def ftime_report : Flag<"-ftime-report">,
453  HelpText<"Print the amount of time each phase of compilation takes">;
454def fdump_record_layouts : Flag<"-fdump-record-layouts">,
455  HelpText<"Dump record layout information">;
456def fdump_record_layouts_simple : Flag<"-fdump-record-layouts-simple">,
457  HelpText<"Dump record layout information in a simple form used for testing">;
458def fix_what_you_can : Flag<"-fix-what-you-can">,
459  HelpText<"Apply fix-it advice even in the presence of unfixable errors">;
460def fix_only_warnings : Flag<"-fix-only-warnings">,
461  HelpText<"Apply fix-it advice only for warnings, not errors">;
462def fixit_recompile : Flag<"-fixit-recompile">,
463  HelpText<"Apply fix-it changes and recompile">;
464def fixit_to_temp : Flag<"-fixit-to-temporary">,
465  HelpText<"Apply fix-it changes to temporary files">;
466
467// Generic forwarding to LLVM options. This should only be used for debugging
468// and experimental features.
469def mllvm : Separate<"-mllvm">,
470  HelpText<"Additional arguments to forward to LLVM's option processing">;
471
472def foverride_record_layout_EQ : Joined<"-foverride-record-layout=">,
473  HelpText<"Override record layouts with those in the given file">;
474  
475//===----------------------------------------------------------------------===//
476// Language Options
477//===----------------------------------------------------------------------===//
478
479def fno_builtin : Flag<"-fno-builtin">,
480  HelpText<"Disable implicit builtin knowledge of functions">;
481def faltivec : Flag<"-faltivec">,
482  HelpText<"Enable AltiVec vector initializer syntax">;
483def fno_access_control : Flag<"-fno-access-control">,
484  HelpText<"Disable C++ access control">;
485def fno_assume_sane_operator_new : Flag<"-fno-assume-sane-operator-new">,
486  HelpText<"Don't assume that C++'s global operator new can't alias any pointer">;
487def fgnu_keywords : Flag<"-fgnu-keywords">,
488  HelpText<"Allow GNU-extension keywords regardless of language standard">;
489def fgnu89_inline : Flag<"-fgnu89-inline">,
490  HelpText<"Use the gnu89 inline semantics">;
491def fno_gnu_keywords : Flag<"-fno-gnu-keywords">,
492  HelpText<"Disallow GNU-extension keywords regardless of language standard">;
493def fdollars_in_identifiers : Flag<"-fdollars-in-identifiers">,
494  HelpText<"Allow '$' in identifiers">;
495def fno_dollars_in_identifiers : Flag<"-fno-dollars-in-identifiers">,
496  HelpText<"Disallow '$' in identifiers">;
497def femit_all_decls : Flag<"-femit-all-decls">,
498  HelpText<"Emit all declarations, even if unused">;
499def fblocks : Flag<"-fblocks">,
500  HelpText<"Enable the 'blocks' language feature">;
501def fblocks_runtime_optional : Flag<"-fblocks-runtime-optional">,
502  HelpText<"Weakly link in the blocks runtime">;
503def fheinous_gnu_extensions : Flag<"-fheinous-gnu-extensions">;
504def fexceptions : Flag<"-fexceptions">,
505  HelpText<"Enable support for exception handling">;
506def fobjc_exceptions : Flag<"-fobjc-exceptions">,
507  HelpText<"Enable Objective-C exceptions">;
508def fcxx_exceptions : Flag<"-fcxx-exceptions">,
509  HelpText<"Enable C++ exceptions">;
510def fsjlj_exceptions : Flag<"-fsjlj-exceptions">,
511  HelpText<"Use SjLj style exceptions">;
512def ffast_math : Flag<"-ffast-math">,
513  HelpText<"Enable the *frontend*'s 'fast-math' mode. This has no effect on "
514           "optimizations, but provides a preprocessor macro __FAST_MATH__ the "
515           "same as GCC's -ffast-math flag.">;
516def ffreestanding : Flag<"-ffreestanding">,
517  HelpText<"Assert that the compilation takes place in a freestanding environment">;
518def fgnu_runtime : Flag<"-fgnu-runtime">,
519  HelpText<"Generate output compatible with the standard GNU Objective-C runtime">;
520def fhidden_weak_vtables : Flag<"-fhidden-weak-vtables">,
521  HelpText<"Generate weak vtables and RTTI with hidden visibility">;
522def std_EQ : Joined<"-std=">,
523  HelpText<"Language standard to compile for">;
524def stdlib_EQ : Joined<"-stdlib=">,
525  HelpText<"C++ standard library to use">;
526def fmath_errno : Flag<"-fmath-errno">,
527  HelpText<"Require math functions to indicate errors by setting errno">;
528def fms_extensions : Flag<"-fms-extensions">,
529  HelpText<"Accept some non-standard constructs supported by the Microsoft compiler">;
530def fms_compatibility : Flag<"-fms-compatibility">,
531  HelpText<"Enable Microsoft compatibility mode">;
532def fmsc_version : Joined<"-fmsc-version=">,
533  HelpText<"Version of the Microsoft C/C++ compiler to report in _MSC_VER (0 = don't define it (default))">;
534def fborland_extensions : Flag<"-fborland-extensions">,
535  HelpText<"Accept non-standard constructs supported by the Borland compiler">;
536def main_file_name : Separate<"-main-file-name">,
537  HelpText<"Main file name to use for debug info">;
538def fno_elide_constructors : Flag<"-fno-elide-constructors">,
539  HelpText<"Disable C++ copy constructor elision">;
540def fno_lax_vector_conversions : Flag<"-fno-lax-vector-conversions">,
541  HelpText<"Disallow implicit conversions between vectors with a different number of elements or different element types">;
542def fno_operator_names : Flag<"-fno-operator-names">,
543  HelpText<"Do not treat C++ operator name keywords as synonyms for operators">;
544def fno_signed_char : Flag<"-fno-signed-char">,
545  HelpText<"Char is unsigned">;
546def fno_spell_checking : Flag<"-fno-spell-checking">,
547  HelpText<"Disable spell-checking">;
548def fno_use_cxa_atexit : Flag<"-fno-use-cxa-atexit">,
549  HelpText<"Don't use __cxa_atexit for calling destructors">;
550def fconstant_string_class : Separate<"-fconstant-string-class">,
551  MetaVarName<"<class name>">,
552  HelpText<"Specify the class to use for constant Objective-C string objects.">;
553def fno_constant_cfstrings : Flag<"-fno-constant-cfstrings">,
554  HelpText<"Enable creation of CodeFoundation-type constant strings">;
555def fobjc_arc : Flag<"-fobjc-arc">,
556  HelpText<"Synthesize retain and release calls for Objective-C pointers">;
557def fobjc_arc_cxxlib_EQ : Joined<"-fobjc-arc-cxxlib=">,
558  HelpText<"Objective-C++ Automatic Reference Counting standard library kind">;
559def fobjc_arc_exceptions : Flag<"-fobjc-arc-exceptions">,
560  HelpText<"Use EH-safe code when synthesizing retains and releases in -fobjc-arc">;
561def fobjc_runtime_has_arc : Flag<"-fobjc-runtime-has-arc">,
562  HelpText<"The target Objective-C runtime provides ARC entrypoints">;
563def fobjc_runtime_has_weak : Flag<"-fobjc-runtime-has-weak">,
564  HelpText<"The target Objective-C runtime supports ARC weak operations">;
565def fobjc_runtime_has_terminate : Flag<"-fobjc-runtime-has-terminate">,
566  HelpText<"The target Objective-C runtime provides an objc_terminate entrypoint">;
567def fobjc_gc : Flag<"-fobjc-gc">,
568  HelpText<"Enable Objective-C garbage collection">;
569def fobjc_gc_only : Flag<"-fobjc-gc-only">,
570  HelpText<"Use GC exclusively for Objective-C related memory management">;
571def fapple_kext : Flag<"-fapple-kext">,
572  HelpText<"Use Apple's kernel extensions ABI">;
573def fobjc_dispatch_method_EQ : Joined<"-fobjc-dispatch-method=">,
574  HelpText<"Objective-C dispatch method to use">;
575def fobjc_default_synthesize_properties : Flag<"-fobjc-default-synthesize-properties">,
576  HelpText<"enable the default synthesis of Objective-C properties">;
577def print_ivar_layout : Flag<"-print-ivar-layout">,
578  HelpText<"Enable Objective-C Ivar layout bitmap print trace">;
579def fobjc_fragile_abi : Flag<"-fobjc-fragile-abi">,
580  HelpText<"Use Objective-C's fragile ABI">;
581def fno_objc_infer_related_result_type : Flag<
582    "-fno-objc-infer-related-result-type">,
583  HelpText<
584    "do not infer Objective-C related result type based on method family">;
585def ftrapv : Flag<"-ftrapv">,
586  HelpText<"Trap on integer overflow">;
587def ftrapv_handler : Separate<"-ftrapv-handler">,
588  MetaVarName<"<function name>">,
589  HelpText<"Specify the function to be called on overflow.">;
590def fwrapv : Flag<"-fwrapv">,
591  HelpText<"Treat signed integer overflow as two's complement">;
592def pic_level : Separate<"-pic-level">,
593  HelpText<"Value for __PIC__">;
594def pthread : Flag<"-pthread">,
595  HelpText<"Support POSIX threads in generated code">;
596def fpack_struct : Separate<"-fpack-struct">,
597  HelpText<"Specify the default maximum struct packing alignment">;
598def fpascal_strings : Flag<"-fpascal-strings">,
599  HelpText<"Recognize and construct Pascal-style string literals">;
600def fno_rtti : Flag<"-fno-rtti">,
601  HelpText<"Disable generation of rtti information">;
602def fno_validate_pch : Flag<"-fno-validate-pch">,
603  HelpText<"Disable validation of precompiled headers">;
604def dump_deserialized_pch_decls : Flag<"-dump-deserialized-decls">,
605  HelpText<"Dump declarations that are deserialized from PCH, for testing">;
606def error_on_deserialized_pch_decl : Separate<"-error-on-deserialized-decl">,
607  HelpText<"Emit error if a specific declaration is deserialized from PCH, for testing">;
608def error_on_deserialized_pch_decl_EQ : Joined<"-error-on-deserialized-decl=">,
609  Alias<error_on_deserialized_pch_decl>;
610def fshort_wchar : Flag<"-fshort-wchar">,
611  HelpText<"Force wchar_t to be a short unsigned int">;
612def fshort_enums : Flag<"-fshort-enums">,
613  HelpText<"Allocate to an enum type only as many bytes as it needs for the declared range of possible values">;
614def static_define : Flag<"-static-define">,
615  HelpText<"Should __STATIC__ be defined">;
616def stack_protector : Separate<"-stack-protector">,
617  HelpText<"Enable stack protectors">;
618def fvisibility : Separate<"-fvisibility">,
619  HelpText<"Default symbol visibility">;
620def fvisibility_inlines_hidden : Flag<"-fvisibility-inlines-hidden">,
621  HelpText<"Give inline C++ member functions default visibility by default">;
622def ftemplate_depth : Separate<"-ftemplate-depth">,
623  HelpText<"Maximum depth of recursive template instantiation">;
624def fconstexpr_depth : Separate<"-fconstexpr-depth">,
625  HelpText<"Maximum depth of recursive constexpr function calls">;
626def Wlarge_by_value_copy : Separate<"-Wlarge-by-value-copy">,
627  HelpText<"Warn if a function definition returns or accepts an object larger "
628           "in bytes that a given value">;
629def Wlarge_by_value_copy_EQ : Joined<"-Wlarge-by-value-copy=">,
630  Alias<Wlarge_by_value_copy>;
631def trigraphs : Flag<"-trigraphs">,
632  HelpText<"Process trigraph sequences">;
633def fwritable_strings : Flag<"-fwritable-strings">,
634  HelpText<"Store string literals as writable data">;
635def fconst_strings : Flag<"-fconst-strings">,
636  HelpText<"Use a const qualified type for string literals in C and ObjC">;
637def fno_const_strings : Flag<"-fno-const-strings">,
638  HelpText<"Don't use a const qualified type for string literals in C and ObjC">;
639def fno_bitfield_type_align : Flag<"-fno-bitfield-type-align">,
640  HelpText<"Ignore bit-field types when aligning structures">;
641def traditional_cpp : Flag<"-traditional-cpp">,
642  HelpText<"Enable some traditional CPP emulation">;
643def ffake_address_space_map : Flag<"-ffake-address-space-map">,
644  HelpText<"Use a fake address space map; OpenCL testing purposes only">;
645def fdelayed_template_parsing : Flag<"-fdelayed-template-parsing">,
646  HelpText<"Parse templated function definitions at the end of the "
647           "translation unit ">;
648def funknown_anytype : Flag<"-funknown-anytype">,
649  HelpText<"Enable parser support for the __unknown_anytype type; for testing purposes only">;
650def fdebugger_support : Flag<"-fdebugger-support">,
651  HelpText<"Enable special debugger support behavior">;
652def fdeprecated_macro : Flag<"-fdeprecated-macro">,
653  HelpText<"Defines the __DEPRECATED macro">;
654def fno_deprecated_macro : Flag<"-fno-deprecated-macro">,
655  HelpText<"Undefines the __DEPRECATED macro">;
656def fapple_pragma_pack : Flag<"-fapple-pragma-pack">,
657  HelpText<"Enable Apple gcc-compatible #pragma pack handling">;
658
659//===----------------------------------------------------------------------===//
660// Header Search Options
661//===----------------------------------------------------------------------===//
662
663def nostdsysteminc : Flag<"-nostdsysteminc">,
664  HelpText<"Disable standard system #include directories">;
665def nostdincxx : Flag<"-nostdinc++">,
666  HelpText<"Disable standard #include directories for the C++ standard library">;
667def nobuiltininc : Flag<"-nobuiltininc">,
668  HelpText<"Disable builtin #include directories">;
669def fmodule_cache_path : Separate<"-fmodule-cache-path">, 
670  MetaVarName<"<directory>">,
671  HelpText<"Specify the module cache path">;           
672def fmodule_name : Joined<"-fmodule-name=">, 
673  MetaVarName<"<name>">,
674  HelpText<"Specify the name of the module to build">;           
675def fdisable_module_hash : Flag<"-fdisable-module-hash">,
676  HelpText<"Disable the module hash">;
677def fmodules : Flag<"-fmodules">,
678  HelpText<"Enable the 'modules' language feature">;
679           
680def F : JoinedOrSeparate<"-F">, MetaVarName<"<directory>">,
681  HelpText<"Add directory to framework include search path">;
682def I : JoinedOrSeparate<"-I">, MetaVarName<"<directory>">,
683  HelpText<"Add directory to include search path">;
684def idirafter : JoinedOrSeparate<"-idirafter">, MetaVarName<"<directory>">,
685  HelpText<"Add directory to AFTER include search path">;
686def index_header_map : Flag<"-index-header-map">, 
687  HelpText<"Make the next included directory (-I or -F) an indexer header map">;
688def iquote : JoinedOrSeparate<"-iquote">, MetaVarName<"<directory>">,
689  HelpText<"Add directory to QUOTE include search path">;
690def c_isystem : JoinedOrSeparate<"-c-isystem">, MetaVarName<"<directory>">,
691  HelpText<"Add directory to the C SYSTEM include search path">;
692def cxx_isystem : JoinedOrSeparate<"-cxx-isystem">, MetaVarName<"<directory>">,
693  HelpText<"Add directory to the C++ SYSTEM include search path">;
694def objc_isystem : JoinedOrSeparate<"-objc-isystem">,
695  MetaVarName<"<directory>">,
696  HelpText<"Add directory to the ObjC SYSTEM include search path">;
697def objcxx_isystem : JoinedOrSeparate<"-objcxx-isystem">,
698  MetaVarName<"<directory>">,
699  HelpText<"Add directory to the ObjC++ SYSTEM include search path">;
700def iframework : JoinedOrSeparate<"-iframework">, MetaVarName<"<directory>">,
701  HelpText<"Add directory to SYSTEM framework search path">;
702def isystem : JoinedOrSeparate<"-isystem">, MetaVarName<"<directory>">,
703  HelpText<"Add directory to SYSTEM include search path">;
704def iwithsysroot : JoinedOrSeparate<"-iwithsysroot">,MetaVarName<"<directory>">,
705  HelpText<"Add directory to SYSTEM include search path, "
706           "absolute paths are relative to -isysroot">;
707def internal_isystem : JoinedOrSeparate<"-internal-isystem">,
708  MetaVarName<"<directory>">,
709  HelpText<"Add directory to the internal system include search path; these "
710           "are assumed to not be user-provided and are used to model system "
711           "and standard headers' paths.">;
712def internal_externc_isystem : JoinedOrSeparate<"-internal-externc-isystem">,
713  MetaVarName<"<directory>">,
714  HelpText<"Add directory to the internal system include search path with "
715           "implicit extern \"C\" semantics; these are assumed to not be "
716           "user-provided and are used to model system and standard headers' "
717           "paths.">;
718def iprefix : JoinedOrSeparate<"-iprefix">, MetaVarName<"<prefix>">,
719  HelpText<"Set the -iwithprefix/-iwithprefixbefore prefix">;
720def iwithprefix : JoinedOrSeparate<"-iwithprefix">, MetaVarName<"<dir>">,
721  HelpText<"Set directory to SYSTEM include search path with prefix">;
722def iwithprefixbefore : JoinedOrSeparate<"-iwithprefixbefore">,
723  MetaVarName<"<dir>">,
724  HelpText<"Set directory to include search path with prefix">;
725def isysroot : JoinedOrSeparate<"-isysroot">, MetaVarName<"<dir>">,
726  HelpText<"Set the system root directory (usually /)">;
727def v : Flag<"-v">, HelpText<"Enable verbose output">;
728
729//===----------------------------------------------------------------------===//
730// Preprocessor Options
731//===----------------------------------------------------------------------===//
732
733def D : JoinedOrSeparate<"-D">, MetaVarName<"<macro>">,
734  HelpText<"Predefine the specified macro">;
735def include_ : JoinedOrSeparate<"-include">, MetaVarName<"<file>">, EnumName<"include">,
736  HelpText<"Include file before parsing">;
737def imacros : JoinedOrSeparate<"-imacros">, MetaVarName<"<file>">,
738  HelpText<"Include macros from file before parsing">;
739def include_pch : Separate<"-include-pch">, MetaVarName<"<file>">,
740  HelpText<"Include precompiled header file">;
741def include_pth : Separate<"-include-pth">, MetaVarName<"<file>">,
742  HelpText<"Include file before parsing">;
743def chain_include : Separate<"-chain-include">, MetaVarName<"<file>">,
744  HelpText<"Include and chain a header file after turning it into PCH">;
745def preamble_bytes_EQ : Joined<"-preamble-bytes=">,
746  HelpText<"Assume that the precompiled header is a precompiled preamble "
747           "covering the first N bytes of the main file">;
748def token_cache : Separate<"-token-cache">, MetaVarName<"<path>">,
749  HelpText<"Use specified token cache file">;
750def U : JoinedOrSeparate<"-U">, MetaVarName<"<macro>">,
751  HelpText<"Undefine the specified macro">;
752def undef : Flag<"-undef">, MetaVarName<"<macro>">,
753  HelpText<"undef all system defines">;
754def detailed_preprocessing_record : Flag<"-detailed-preprocessing-record">,
755  HelpText<"include a detailed record of preprocessing actions">;
756def mqdsp6_compat : Flag<"-mqdsp6-compat">,
757  HelpText<"Enable hexagon-qdsp6 backward compatibility">;
758
759//===----------------------------------------------------------------------===//
760// Preprocessed Output Options
761//===----------------------------------------------------------------------===//
762
763def P : Flag<"-P">,
764  HelpText<"Disable linemarker output in -E mode">;
765def C : Flag<"-C">,
766  HelpText<"Enable comment output in -E mode">;
767def CC : Flag<"-CC">,
768  HelpText<"Enable comment output in -E mode, even from macro expansions">;
769def dM : Flag<"-dM">,
770  HelpText<"Print macro definitions in -E mode instead of normal output">;
771def dD : Flag<"-dD">,
772  HelpText<"Print macro definitions in -E mode in addition to normal output">;
773
774//===----------------------------------------------------------------------===//
775// OpenCL Options
776//===----------------------------------------------------------------------===//
777
778def cl_opt_disable : Flag<"-cl-opt-disable">,
779  HelpText<"OpenCL only. This option disables all optimizations. The default is optimizations are enabled.">;
780def cl_single_precision_constant : Flag<"-cl-single-precision-constant">,
781  HelpText<"OpenCL only. Treat double precision floating-point constant as single precision constant.">;
782def cl_finite_math_only : Flag<"-cl-finite-math-only">,
783  HelpText<"OpenCL only. Allow floating-point optimizations that assume arguments and results are not NaNs or +-Inf.">;
784def cl_unsafe_math_optimizations : Flag<"-cl-unsafe-math-optimizations">,
785  HelpText<"OpenCL only. Allow unsafe floating-point optimizations.  Also implies -cl-no-signed-zeros and -cl-mad-enable">;
786def cl_fast_relaxed_math : Flag<"-cl-fast-relaxed-math">,
787  HelpText<"OpenCL only. Sets -cl-finite-math-only and -cl-unsafe-math-optimizations, and defines __FAST_RELAXED_MATH__">;
788def cl_mad_enable : Flag<"-cl-mad-enable">,
789  HelpText<"OpenCL only. Enable less precise MAD instructions to be generated.">;
790def cl_std_EQ : Joined<"-cl-std=">,
791  HelpText<"OpenCL language standard to compile for">;
792
793//===----------------------------------------------------------------------===//
794// CUDA Options
795//===----------------------------------------------------------------------===//
796
797def fcuda_is_device : Flag<"-fcuda-is-device">,
798  HelpText<"Generate code for CUDA device">;
799