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Daniel Dunbarb3375cb2009-11-17 06:02:29 +00001//===--- CompilerInvocation.cpp -------------------------------------------===//
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
Roman Divacky95f38f62012-12-21 17:23:52 +000010#include "clang/Frontend/CompilerInvocation.h"
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +000011#include "clang/Basic/FileManager.h"
Chandler Carruth55fc8732012-12-04 09:13:33 +000012#include "clang/Basic/Version.h"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000013#include "clang/Driver/DriverDiagnostic.h"
Chandler Carruth55fc8732012-12-04 09:13:33 +000014#include "clang/Driver/Options.h"
Reid Klecknerb1e25a12013-06-14 17:17:23 +000015#include "clang/Driver/Util.h"
Stephen Hines6bcf27b2014-05-29 04:14:42 -070016#include "clang/Frontend/FrontendDiagnostic.h"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000017#include "clang/Frontend/LangStandard.h"
Reid Klecknerb1e25a12013-06-14 17:17:23 +000018#include "clang/Frontend/Utils.h"
Chandler Carruth55fc8732012-12-04 09:13:33 +000019#include "clang/Lex/HeaderSearchOptions.h"
Sebastian Redl6ab7cd82010-08-18 23:57:17 +000020#include "clang/Serialization/ASTReader.h"
Douglas Gregor984e2eb2012-11-05 19:45:09 +000021#include "llvm/ADT/Hashing.h"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000022#include "llvm/ADT/SmallVector.h"
Stephen Hinesc568f1e2014-07-21 00:47:37 -070023#include "llvm/ADT/STLExtras.h"
Daniel Dunbarb3375cb2009-11-17 06:02:29 +000024#include "llvm/ADT/StringExtras.h"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000025#include "llvm/ADT/StringSwitch.h"
Duncan Sands2dc14532010-08-30 09:42:39 +000026#include "llvm/ADT/Triple.h"
Reid Klecknerb1e25a12013-06-14 17:17:23 +000027#include "llvm/Option/Arg.h"
28#include "llvm/Option/ArgList.h"
29#include "llvm/Option/OptTable.h"
30#include "llvm/Option/Option.h"
Stephen Hines6bcf27b2014-05-29 04:14:42 -070031#include "llvm/Support/CodeGen.h"
Daniel Dunbarb3375cb2009-11-17 06:02:29 +000032#include "llvm/Support/ErrorHandling.h"
Rafael Espindolaac1db6b2013-06-26 05:03:40 +000033#include "llvm/Support/FileSystem.h"
Michael J. Spencer03013fa2010-11-29 18:12:39 +000034#include "llvm/Support/Host.h"
35#include "llvm/Support/Path.h"
Nico Rieck2956ef42013-09-11 00:38:02 +000036#include "llvm/Support/Process.h"
Stephen Hines651f13c2014-04-23 16:59:28 -070037#include <atomic>
38#include <memory>
Douglas Gregord8f681e2013-05-10 21:54:08 +000039#include <sys/stat.h>
Stephen Hinesc568f1e2014-07-21 00:47:37 -070040#include <system_error>
Daniel Dunbarb3375cb2009-11-17 06:02:29 +000041using namespace clang;
42
Ted Kremenekd3b74d92011-11-17 23:01:24 +000043//===----------------------------------------------------------------------===//
44// Initialization.
45//===----------------------------------------------------------------------===//
46
Ted Kremenek8a0c5c22011-11-18 04:32:13 +000047CompilerInvocationBase::CompilerInvocationBase()
Douglas Gregor02c23eb2012-10-23 22:26:28 +000048 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
Douglas Gregorc042edd2012-10-24 16:19:39 +000049 DiagnosticOpts(new DiagnosticOptions()),
Douglas Gregor14e71f02012-10-24 17:01:35 +000050 HeaderSearchOpts(new HeaderSearchOptions()),
51 PreprocessorOpts(new PreprocessorOptions()) {}
Ted Kremenekd3b74d92011-11-17 23:01:24 +000052
Ted Kremenek8a0c5c22011-11-18 04:32:13 +000053CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
Dylan Noblesmithc93dc782012-02-20 14:00:23 +000054 : RefCountedBase<CompilerInvocation>(),
Douglas Gregor57016dd2012-10-16 23:40:58 +000055 LangOpts(new LangOptions(*X.getLangOpts())),
Douglas Gregor02c23eb2012-10-23 22:26:28 +000056 TargetOpts(new TargetOptions(X.getTargetOpts())),
Douglas Gregorc042edd2012-10-24 16:19:39 +000057 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
Douglas Gregor14e71f02012-10-24 17:01:35 +000058 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
59 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
Ted Kremenekd3b74d92011-11-17 23:01:24 +000060
Stephen Hines6bcf27b2014-05-29 04:14:42 -070061CompilerInvocationBase::~CompilerInvocationBase() {}
62
Ted Kremenekd3b74d92011-11-17 23:01:24 +000063//===----------------------------------------------------------------------===//
Richard Smith7c3f8b32012-11-01 03:48:49 +000064// Deserialization (from args)
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000065//===----------------------------------------------------------------------===//
66
67using namespace clang::driver;
James Molloybfd7a522012-05-01 14:57:16 +000068using namespace clang::driver::options;
Reid Klecknerb1e25a12013-06-14 17:17:23 +000069using namespace llvm::opt;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000070
Daniel Dunbar56ac85c2009-12-01 03:16:53 +000071//
72
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +000073static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
David Blaikied6471f72011-09-25 23:23:43 +000074 DiagnosticsEngine &Diags) {
Peter Collingbourne61e07862010-12-04 01:50:45 +000075 unsigned DefaultOpt = 0;
76 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
77 DefaultOpt = 2;
James Molloybfd7a522012-05-01 14:57:16 +000078
79 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
80 if (A->getOption().matches(options::OPT_O0))
81 return 0;
82
Chad Rosierd4fc9de2013-04-10 21:26:02 +000083 if (A->getOption().matches(options::OPT_Ofast))
84 return 3;
85
James Molloybfd7a522012-05-01 14:57:16 +000086 assert (A->getOption().matches(options::OPT_O));
87
Dmitri Gribenkocfa88f82013-01-12 19:30:44 +000088 StringRef S(A->getValue());
James Molloybfd7a522012-05-01 14:57:16 +000089 if (S == "s" || S == "z" || S.empty())
90 return 2;
91
Reid Klecknerb1e25a12013-06-14 17:17:23 +000092 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
James Molloybfd7a522012-05-01 14:57:16 +000093 }
94
95 return DefaultOpt;
96}
97
Chad Rosier05422362013-04-10 21:30:03 +000098static unsigned getOptimizationLevelSize(ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +000099 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
100 if (A->getOption().matches(options::OPT_O)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000101 switch (A->getValue()[0]) {
James Molloybfd7a522012-05-01 14:57:16 +0000102 default:
103 return 0;
104 case 's':
105 return 1;
106 case 'z':
107 return 2;
108 }
109 }
110 }
111 return 0;
112}
113
114static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) {
115 for (arg_iterator I = Args.filtered_begin(OPT_W_Group),
116 E = Args.filtered_end(); I != E; ++I) {
117 Arg *A = *I;
Michael J. Spencerc6357102012-10-22 22:13:48 +0000118 // If the argument is a pure flag, add its name (minus the "W" at the beginning)
James Molloybfd7a522012-05-01 14:57:16 +0000119 // to the warning list. Else, add its value (for the OPT_W case).
120 if (A->getOption().getKind() == Option::FlagClass) {
Michael J. Spencerc6357102012-10-22 22:13:48 +0000121 Warnings.push_back(A->getOption().getName().substr(1));
James Molloybfd7a522012-05-01 14:57:16 +0000122 } else {
123 for (unsigned Idx = 0, End = A->getNumValues();
124 Idx < End; ++Idx) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000125 StringRef V = A->getValue(Idx);
James Molloybfd7a522012-05-01 14:57:16 +0000126 // "-Wl," and such are not warning options.
127 // FIXME: Should be handled by putting these in separate flags.
128 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,"))
129 continue;
130
131 Warnings.push_back(V);
132 }
133 }
134 }
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +0000135}
136
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000137static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
David Blaikied6471f72011-09-25 23:23:43 +0000138 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000139 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000140 bool Success = true;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000141 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000142 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000143 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
144#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
145 .Case(CMDFLAG, NAME##Model)
Ted Kremenek987695a2012-08-31 04:35:58 +0000146#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000147 .Default(NumStores);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000148 if (Value == NumStores) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000149 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000150 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000151 Success = false;
152 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000153 Opts.AnalysisStoreOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000154 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000155 }
156
157 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000158 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000159 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
160#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
161 .Case(CMDFLAG, NAME##Model)
Ted Kremenek987695a2012-08-31 04:35:58 +0000162#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000163 .Default(NumConstraints);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000164 if (Value == NumConstraints) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000165 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000166 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000167 Success = false;
168 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000169 Opts.AnalysisConstraintsOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000170 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000171 }
172
173 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000174 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000175 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
Jordan Rose5fba5a72013-08-16 01:06:30 +0000176#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000177 .Case(CMDFLAG, PD_##NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000178#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000179 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000180 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000181 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000182 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000183 Success = false;
184 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000185 Opts.AnalysisDiagOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000186 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000187 }
188
Anna Zaksd3095282011-09-30 02:03:00 +0000189 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000190 StringRef Name = A->getValue();
Anna Zaksd3095282011-09-30 02:03:00 +0000191 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
192#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
193 .Case(CMDFLAG, NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000194#include "clang/StaticAnalyzer/Core/Analyses.def"
Anna Zaksd3095282011-09-30 02:03:00 +0000195 .Default(NumPurgeModes);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000196 if (Value == NumPurgeModes) {
Anna Zaksd3095282011-09-30 02:03:00 +0000197 Diags.Report(diag::err_drv_invalid_value)
198 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000199 Success = false;
200 } else {
Anna Zaksd3095282011-09-30 02:03:00 +0000201 Opts.AnalysisPurgeOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000202 }
Anna Zaksd3095282011-09-30 02:03:00 +0000203 }
204
Anna Zaks66253352012-03-08 23:16:35 +0000205 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000206 StringRef Name = A->getValue();
Anna Zaks66253352012-03-08 23:16:35 +0000207 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
208#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
209 .Case(CMDFLAG, NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000210#include "clang/StaticAnalyzer/Core/Analyses.def"
Anna Zaks66253352012-03-08 23:16:35 +0000211 .Default(NumInliningModes);
212 if (Value == NumInliningModes) {
213 Diags.Report(diag::err_drv_invalid_value)
214 << A->getAsString(Args) << Name;
215 Success = false;
216 } else {
217 Opts.InliningMode = Value;
218 }
219 }
220
Argyrios Kyrtzidis116f3642011-02-25 00:09:51 +0000221 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
Ted Kremenek3b8a0402012-08-30 19:26:53 +0000222 Opts.visualizeExplodedGraphWithGraphViz =
223 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
224 Opts.visualizeExplodedGraphWithUbiGraph =
225 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
Anna Zaksb47dbcb2012-03-28 19:59:16 +0000226 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000227 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
228 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
Ted Kremenekfc576512009-12-07 22:06:12 +0000229 Opts.AnalyzeNestedBlocks =
230 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
Ted Kremenek0caa2d42012-08-30 19:26:48 +0000231 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000232 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
Ted Kremenek9b823e82010-08-03 00:09:51 +0000233 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000234 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000235 Opts.maxBlockVisitOnPath =
236 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
Anna Zaks81fb1692012-02-27 21:33:16 +0000237 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
Anna Zaks8235f9c2012-03-02 19:05:03 +0000238 Opts.InlineMaxStackDepth =
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000239 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
240 Opts.InlineMaxStackDepth, Diags);
Argyrios Kyrtzidis43dee222011-02-14 18:13:31 +0000241
242 Opts.CheckersControlList.clear();
243 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
244 OPT_analyzer_disable_checker),
245 ie = Args.filtered_end(); it != ie; ++it) {
246 const Arg *A = *it;
247 A->claim();
248 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
Argyrios Kyrtzidis38c8fe72011-02-24 08:42:20 +0000249 // We can have a list of comma separated checker names, e.g:
250 // '-analyzer-checker=cocoa,unix'
Richard Smith1d489cf2012-11-01 04:30:05 +0000251 StringRef checkerList = A->getValue();
Chris Lattner5f9e2722011-07-23 10:55:15 +0000252 SmallVector<StringRef, 4> checkers;
Argyrios Kyrtzidis38c8fe72011-02-24 08:42:20 +0000253 checkerList.split(checkers, ",");
254 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
255 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
Argyrios Kyrtzidis43dee222011-02-14 18:13:31 +0000256 }
Ted Kremenek7b73e082012-08-29 05:55:00 +0000257
258 // Go through the analyzer configuration options.
259 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
260 ie = Args.filtered_end(); it != ie; ++it) {
261 const Arg *A = *it;
262 A->claim();
263 // We can have a list of comma separated config names, e.g:
Ted Kremenek318cc3c2012-08-30 05:49:16 +0000264 // '-analyzer-config key1=val1,key2=val2'
Richard Smith1d489cf2012-11-01 04:30:05 +0000265 StringRef configList = A->getValue();
Ted Kremenek7b73e082012-08-29 05:55:00 +0000266 SmallVector<StringRef, 4> configVals;
267 configList.split(configVals, ",");
268 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
269 StringRef key, val;
Stephen Hines651f13c2014-04-23 16:59:28 -0700270 std::tie(key, val) = configVals[i].split("=");
Ted Kremenek7b73e082012-08-29 05:55:00 +0000271 if (val.empty()) {
272 Diags.Report(SourceLocation(),
273 diag::err_analyzer_config_no_value) << configVals[i];
274 Success = false;
275 break;
276 }
Ted Kremenek318cc3c2012-08-30 05:49:16 +0000277 if (val.find('=') != StringRef::npos) {
Ted Kremenek7b73e082012-08-29 05:55:00 +0000278 Diags.Report(SourceLocation(),
279 diag::err_analyzer_config_multiple_values)
280 << configVals[i];
281 Success = false;
282 break;
283 }
284 Opts.Config[key] = val;
285 }
286 }
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000287
288 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000289}
290
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +0000291static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
292 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
Fariborz Jahanianbbdfad52012-01-26 20:57:58 +0000293 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +0000294 return true;
295}
296
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +0000297static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
298 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
Dmitri Gribenko6fd7d302013-04-10 15:35:17 +0000299 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +0000300}
301
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700302static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
303 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
304 StringRef Value = A->getValue();
305 if (Value == "small" || Value == "kernel" || Value == "medium" ||
306 Value == "large")
307 return Value;
308 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
309 }
310 return "default";
311}
312
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700313/// \brief Create a new Regex instance out of the string value in \p RpassArg.
314/// It returns a pointer to the newly generated Regex instance.
315static std::shared_ptr<llvm::Regex>
316GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
317 Arg *RpassArg) {
318 StringRef Val = RpassArg->getValue();
319 std::string RegexError;
320 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
321 if (!Pattern->isValid(RegexError)) {
322 Diags.Report(diag::err_drv_optimization_remark_pattern)
323 << RegexError << RpassArg->getAsString(Args);
324 Pattern.reset();
325 }
326 return Pattern;
327}
328
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000329static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Stephen Hines651f13c2014-04-23 16:59:28 -0700330 DiagnosticsEngine &Diags,
331 const TargetOptions &TargetOpts) {
James Molloybfd7a522012-05-01 14:57:16 +0000332 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000333 bool Success = true;
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +0000334
Sylvestre Ledru762e5672013-11-18 13:23:07 +0000335 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
336 // TODO: This could be done in Driver
337 unsigned MaxOptLevel = 3;
338 if (Opts.OptimizationLevel > MaxOptLevel) {
339 // If the optimization level is not supported, fall back on the default optimization
340 Diags.Report(diag::warn_drv_optimization_value)
341 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
342 Opts.OptimizationLevel = MaxOptLevel;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000343 }
344
345 // We must always run at least the always inlining pass.
Douglas Gregor4cdad312012-10-23 20:05:01 +0000346 Opts.setInlining(
347 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
348 : CodeGenOptions::OnlyAlwaysInlining);
Chad Rosier634a4b12012-03-06 21:17:19 +0000349 // -fno-inline-functions overrides OptimizationLevel > 1.
Chad Rosierfc055f92012-03-15 22:31:42 +0000350 Opts.NoInline = Args.hasArg(OPT_fno_inline);
Douglas Gregor4cdad312012-10-23 20:05:01 +0000351 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
352 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000353
Alexey Samsonovfd00eec2012-05-04 07:39:27 +0000354 if (Args.hasArg(OPT_gline_tables_only)) {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000355 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
Manman Renfc0f91c2013-06-19 01:46:49 +0000356 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
357 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
Stephen Hines651f13c2014-04-23 16:59:28 -0700358 bool Default = false;
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700359 // Until dtrace (via CTF) and LLDB can deal with distributed debug info,
360 // Darwin and FreeBSD default to standalone/full debug info.
361 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() ||
362 llvm::Triple(TargetOpts.Triple).isOSFreeBSD())
Stephen Hines651f13c2014-04-23 16:59:28 -0700363 Default = true;
364
365 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default))
Douglas Gregor4cdad312012-10-23 20:05:01 +0000366 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
Stephen Hines651f13c2014-04-23 16:59:28 -0700367 else
368 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
Alexey Samsonov3a70cd62012-04-27 07:24:20 +0000369 }
Eric Christopherda3301e2012-10-18 21:52:18 +0000370 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
Eric Christopherff971d72013-02-22 23:50:16 +0000371 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
Manman Renfc0f91c2013-06-19 01:46:49 +0000372 if (Args.hasArg(OPT_gdwarf_2))
373 Opts.DwarfVersion = 2;
374 else if (Args.hasArg(OPT_gdwarf_3))
375 Opts.DwarfVersion = 3;
376 else if (Args.hasArg(OPT_gdwarf_4))
377 Opts.DwarfVersion = 4;
378 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
Eric Christopher617f4c52013-09-03 16:10:12 +0000379 // Default Dwarf version is 4 if we are generating debug information.
380 Opts.DwarfVersion = 4;
Alexey Samsonov3a70cd62012-04-27 07:24:20 +0000381
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000382 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
383 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
John McCall32096692011-03-18 02:56:14 +0000384 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
Daniel Dunbare26bdb92011-06-21 18:54:46 +0000385 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
386 OPT_fuse_register_sized_bitfield_access);
Chad Rosierb82e1172013-04-24 18:09:54 +0000387 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
Manman Ren96d6c452013-10-11 20:48:38 +0000388 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000389 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000390 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
391 Opts.NoCommon = Args.hasArg(OPT_fno_common);
392 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
Chad Rosier05422362013-04-10 21:30:03 +0000393 Opts.OptimizeSize = getOptimizationLevelSize(Args);
Daniel Dunbar6b0cf672010-06-07 23:19:17 +0000394 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
395 Args.hasArg(OPT_ffreestanding));
Chandler Carruthb26404a2013-08-08 08:34:35 +0000396 Opts.UnrollLoops =
397 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
398 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
Hal Finkelce5b5f12013-11-17 16:03:29 +0000399 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000400
Stephen Hines651f13c2014-04-23 16:59:28 -0700401 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
Daniel Dunbarf4910132013-04-16 18:21:19 +0000402 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
Diego Novillob85a9ec2013-11-13 12:22:39 +0000403 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
Stephen Hines651f13c2014-04-23 16:59:28 -0700404 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate);
405 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000406 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
John McCallf85e1932011-06-15 23:02:42 +0000407 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
Peter Collingbourned51e43a2011-10-06 18:29:46 +0000408 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device);
Daniel Dunbarefb0fa92010-03-20 04:15:41 +0000409 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
410 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700411 Opts.CodeModel = getCodeModel(Args, Diags);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000412 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000413 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
Nick Lewycky73b8d4b2013-06-21 21:15:32 +0000414 Opts.DisableFree = Args.hasArg(OPT_disable_free);
Nick Lewycky1db772b2012-01-23 08:29:12 +0000415 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000416 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
Peter Collingbourne4400cb82010-12-04 01:51:33 +0000417 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000418 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
Daniel Dunbar001f6282011-12-09 23:41:18 +0000419 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
420 Args.hasArg(OPT_cl_finite_math_only)||
421 Args.hasArg(OPT_cl_fast_relaxed_math));
422 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
423 Args.hasArg(OPT_cl_finite_math_only)||
424 Args.hasArg(OPT_cl_fast_relaxed_math));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000425 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Daniel Dunbar3c66d302011-03-22 16:48:17 +0000426 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000427 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
Chad Rosier1b906052011-08-26 00:26:29 +0000428 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge);
Nick Lewyckyc3b90142011-06-21 00:14:18 +0000429 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
Eric Christopher31056272013-04-04 06:29:47 +0000430 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
Daniel Dunbar4ecc9b72010-05-27 05:39:39 +0000431 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Daniel Dunbar1ad66482010-07-01 01:31:45 +0000432 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
Daniel Dunbar96932322011-03-28 22:49:28 +0000433 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
Nick Lewyckyea523d72011-10-17 23:05:52 +0000434 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000435 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
Chandler Carruth82fe6ae2012-03-27 23:58:37 +0000436 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
Chandler Carruthabf07a72012-01-02 14:19:45 +0000437 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
438 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Peter Collingbournef0840822010-12-04 01:51:23 +0000439 Args.hasArg(OPT_cl_fast_relaxed_math);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000440 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000441 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
Bob Wilson71fd6cc2012-02-03 06:27:22 +0000442 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
Rafael Espindola8af669f2012-06-19 01:26:10 +0000443 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000444
Nick Lewyckyff059792013-10-11 03:35:10 +0000445 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
446 OPT_fno_function_sections, false);
447 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
448 OPT_fno_data_sections, false);
Chris Lattnerbbea7162010-04-13 00:38:24 +0000449
Nick Lewyckyfdf137b2013-06-25 01:49:44 +0000450 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
451 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
452 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
453
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000454 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
John McCall824e19e2010-02-12 23:47:27 +0000455 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
Will Dietz2d382d12012-12-30 20:53:28 +0000456 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover);
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000457
Nick Lewyckyf2b5e072013-03-20 01:38:16 +0000458 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
Nick Lewyckye8ba8d72011-04-21 23:44:07 +0000459 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
460 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000461 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
Nick Lewycky3dc05412011-05-05 00:08:20 +0000462 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000463 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
Nick Lewycky83c546a2013-03-20 02:14:38 +0000464 Opts.CoverageNoFunctionNamesInData =
465 Args.hasArg(OPT_coverage_no_function_names_in_data);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000466 if (Args.hasArg(OPT_coverage_version_EQ)) {
467 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
468 if (CoverageVersion.size() != 4) {
469 Diags.Report(diag::err_drv_invalid_value)
470 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
471 << CoverageVersion;
472 } else {
Nick Lewyckyc3ae5832013-03-14 05:14:01 +0000473 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000474 }
475 }
476 }
477
478 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
479 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
480 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
Stephen Hines651f13c2014-04-23 16:59:28 -0700481 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
Nick Lewycky7c4fd912011-10-21 02:32:14 +0000482 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
Peter Collingbourne22a7dfe2011-10-30 17:30:44 +0000483 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
Alexey Samsonov91ecfa62012-12-03 19:12:58 +0000484 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist);
Alexey Samsonov4bdc6042013-01-20 13:12:12 +0000485 Opts.SanitizeMemoryTrackOrigins =
Stephen Hines651f13c2014-04-23 16:59:28 -0700486 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
Chad Rosier78d85b12013-01-29 23:31:22 +0000487 Opts.SanitizeUndefinedTrapOnError =
Stephen Hines651f13c2014-04-23 16:59:28 -0700488 Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
Chad Rosiera7afeb02012-08-21 16:16:06 +0000489 Opts.SSPBufferSize =
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000490 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
Nick Lewycky4e785c92011-12-06 03:33:03 +0000491 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
Joerg Sonnenbergere9d11db2011-12-05 23:05:23 +0000492 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000493 StringRef Val = A->getValue();
Douglas Gregor4cdad312012-10-23 20:05:01 +0000494 unsigned StackAlignment = Opts.StackAlignment;
495 Val.getAsInteger(10, StackAlignment);
496 Opts.StackAlignment = StackAlignment;
Joerg Sonnenbergere9d11db2011-12-05 23:05:23 +0000497 }
Chris Lattner7255a2d2010-06-22 00:03:40 +0000498
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000499 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000500 StringRef Name = A->getValue();
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000501 unsigned Method = llvm::StringSwitch<unsigned>(Name)
502 .Case("legacy", CodeGenOptions::Legacy)
503 .Case("non-legacy", CodeGenOptions::NonLegacy)
504 .Case("mixed", CodeGenOptions::Mixed)
505 .Default(~0U);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000506 if (Method == ~0U) {
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000507 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000508 Success = false;
509 } else {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000510 Opts.setObjCDispatchMethod(
511 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000512 }
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000513 }
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000514
Hans Wennborgde981f32012-06-28 08:01:44 +0000515 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000516 StringRef Name = A->getValue();
Hans Wennborgde981f32012-06-28 08:01:44 +0000517 unsigned Model = llvm::StringSwitch<unsigned>(Name)
518 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
519 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
520 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
521 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
522 .Default(~0U);
523 if (Model == ~0U) {
524 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
525 Success = false;
526 } else {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000527 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
Hans Wennborgde981f32012-06-28 08:01:44 +0000528 }
529 }
530
Lang Hames931c0832012-11-15 07:51:26 +0000531 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
532 StringRef Val = A->getValue();
533 if (Val == "fast")
534 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
535 else if (Val == "on")
536 Opts.setFPContractMode(CodeGenOptions::FPC_On);
537 else if (Val == "off")
538 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
539 else
540 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
541 }
542
John McCallb8b52972013-06-18 02:46:29 +0000543 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
544 if (A->getOption().matches(OPT_fpcc_struct_return)) {
545 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
546 } else {
547 assert(A->getOption().matches(OPT_freg_struct_return));
548 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
549 }
550 }
551
Hans Wennborgb3574792013-08-08 00:17:41 +0000552 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700553 bool NeedLocTracking = false;
Hans Wennborgb3574792013-08-08 00:17:41 +0000554
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700555 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700556 Opts.OptimizationRemarkPattern =
557 GenerateOptimizationRemarkRegex(Diags, Args, A);
558 NeedLocTracking = true;
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700559 }
560
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700561 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
562 Opts.OptimizationRemarkMissedPattern =
563 GenerateOptimizationRemarkRegex(Diags, Args, A);
564 NeedLocTracking = true;
565 }
566
567 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
568 Opts.OptimizationRemarkAnalysisPattern =
569 GenerateOptimizationRemarkRegex(Diags, Args, A);
570 NeedLocTracking = true;
571 }
572
573 // If the user requested one of the flags in the -Rpass family, make sure
574 // that the backend tracks source location information.
575 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
576 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
577
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000578 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000579}
580
581static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
582 ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +0000583 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000584 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
585 Opts.Targets = Args.getAllArgValues(OPT_MT);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000586 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
Stephen Hines651f13c2014-04-23 16:59:28 -0700587 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000588 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
Daniel Dunbareef63e02011-02-02 15:41:17 +0000589 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
Daniel Dunbarb34d69b2011-02-02 21:11:31 +0000590 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
Peter Collingbournebb527862011-07-12 19:35:15 +0000591 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
Hans Wennborg708002e2013-08-09 00:32:23 +0000592 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
Douglas Gregor773303a2012-02-02 23:45:13 +0000593 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700594 Opts.ModuleDependencyOutputDir =
595 Args.getLastArgValue(OPT_module_dependency_dir);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000596}
597
Chad Rosier2dec85b2012-03-13 20:09:56 +0000598bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
599 DiagnosticsEngine *Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000600 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000601 bool Success = true;
602
Daniel Dunbar08c66952011-04-07 18:11:14 +0000603 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
Ted Kremenek78002122011-10-29 00:12:39 +0000604 Opts.DiagnosticSerializationFile =
605 Args.getLastArgValue(OPT_diagnostic_serialized_file);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000606 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
607 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
608 Opts.Pedantic = Args.hasArg(OPT_pedantic);
609 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
610 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
611 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
Douglas Gregorc9471b02011-05-21 17:07:29 +0000612 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
613 OPT_fno_show_column,
614 /*Default=*/true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000615 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
616 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
617 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000618
Nico Rieck2956ef42013-09-11 00:38:02 +0000619 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
620
Chandler Carruth34b8e682011-03-27 20:00:08 +0000621 // Default behavior is to not to show note include stacks.
622 Opts.ShowNoteIncludeStack = false;
Chandler Carruthabaca7a2011-03-27 01:50:55 +0000623 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
624 OPT_fno_diagnostics_show_note_include_stack))
Chandler Carruth34b8e682011-03-27 20:00:08 +0000625 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
626 Opts.ShowNoteIncludeStack = true;
Chandler Carruthabaca7a2011-03-27 01:50:55 +0000627
Chris Lattner5f9e2722011-07-23 10:55:15 +0000628 StringRef ShowOverloads =
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000629 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
630 if (ShowOverloads == "best")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000631 Opts.setShowOverloads(Ovl_Best);
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000632 else if (ShowOverloads == "all")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000633 Opts.setShowOverloads(Ovl_All);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000634 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000635 Success = false;
636 if (Diags)
637 Diags->Report(diag::err_drv_invalid_value)
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000638 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
639 << ShowOverloads;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000640 }
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000641
Chris Lattner5f9e2722011-07-23 10:55:15 +0000642 StringRef ShowCategory =
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000643 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
Chris Lattner6fbe8392010-05-04 21:55:25 +0000644 if (ShowCategory == "none")
645 Opts.ShowCategories = 0;
646 else if (ShowCategory == "id")
647 Opts.ShowCategories = 1;
648 else if (ShowCategory == "name")
649 Opts.ShowCategories = 2;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000650 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000651 Success = false;
652 if (Diags)
653 Diags->Report(diag::err_drv_invalid_value)
Chris Lattner6fbe8392010-05-04 21:55:25 +0000654 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
655 << ShowCategory;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000656 }
Michael J. Spencer20249a12010-10-21 03:16:25 +0000657
Chris Lattner5f9e2722011-07-23 10:55:15 +0000658 StringRef Format =
Douglas Gregorc9471b02011-05-21 17:07:29 +0000659 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
660 if (Format == "clang")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000661 Opts.setFormat(DiagnosticOptions::Clang);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000662 else if (Format == "msvc")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000663 Opts.setFormat(DiagnosticOptions::Msvc);
Hans Wennborg89e32742013-09-24 00:08:55 +0000664 else if (Format == "msvc-fallback") {
665 Opts.setFormat(DiagnosticOptions::Msvc);
666 Opts.CLFallbackMode = true;
667 } else if (Format == "vi")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000668 Opts.setFormat(DiagnosticOptions::Vi);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000669 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000670 Success = false;
671 if (Diags)
672 Diags->Report(diag::err_drv_invalid_value)
Douglas Gregorc9471b02011-05-21 17:07:29 +0000673 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
674 << Format;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000675 }
Douglas Gregorc9471b02011-05-21 17:07:29 +0000676
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000677 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
Douglas Gregor4786c152010-08-19 20:24:43 +0000678 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
Richard Smith62221b12012-11-14 23:55:25 +0000679 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000680 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
Richard Trieu246b6aa2012-06-26 18:18:47 +0000681 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
682 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000683 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
684 Opts.MacroBacktraceLimit =
685 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
Douglas Gregor6c1cb992010-05-04 17:13:42 +0000686 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000687 Opts.TemplateBacktraceLimit = getLastArgIntValue(
688 Args, OPT_ftemplate_backtrace_limit,
689 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
690 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
691 Args, OPT_fconstexpr_backtrace_limit,
692 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
693 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
Chris Lattner52388f92010-01-13 03:06:50 +0000694 DiagnosticOptions::DefaultTabStop, Diags);
695 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
Chris Lattner52388f92010-01-13 03:06:50 +0000696 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
Chad Rosier2dec85b2012-03-13 20:09:56 +0000697 if (Diags)
698 Diags->Report(diag::warn_ignoring_ftabstop_value)
699 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
Chris Lattner52388f92010-01-13 03:06:50 +0000700 }
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000701 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
James Molloybfd7a522012-05-01 14:57:16 +0000702 addWarningArgs(Args, Opts.Warnings);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000703
704 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000705}
706
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +0000707static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
708 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
709}
710
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000711static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
David Blaikied6471f72011-09-25 23:23:43 +0000712 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000713 using namespace options;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000714 Opts.ProgramAction = frontend::ParseSyntaxOnly;
715 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
716 switch (A->getOption().getID()) {
717 default:
David Blaikieb219cfc2011-09-23 05:06:16 +0000718 llvm_unreachable("Invalid option in group!");
Alexander Kornienko171af642012-07-31 09:37:40 +0000719 case OPT_ast_list:
720 Opts.ProgramAction = frontend::ASTDeclList; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000721 case OPT_ast_dump:
722 Opts.ProgramAction = frontend::ASTDump; break;
723 case OPT_ast_print:
724 Opts.ProgramAction = frontend::ASTPrint; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000725 case OPT_ast_view:
726 Opts.ProgramAction = frontend::ASTView; break;
727 case OPT_dump_raw_tokens:
728 Opts.ProgramAction = frontend::DumpRawTokens; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000729 case OPT_dump_tokens:
730 Opts.ProgramAction = frontend::DumpTokens; break;
731 case OPT_S:
732 Opts.ProgramAction = frontend::EmitAssembly; break;
733 case OPT_emit_llvm_bc:
734 Opts.ProgramAction = frontend::EmitBC; break;
735 case OPT_emit_html:
736 Opts.ProgramAction = frontend::EmitHTML; break;
737 case OPT_emit_llvm:
738 Opts.ProgramAction = frontend::EmitLLVM; break;
739 case OPT_emit_llvm_only:
740 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
Daniel Dunbar32148ce2010-05-25 18:41:01 +0000741 case OPT_emit_codegen_only:
742 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
Daniel Dunbarda1573f2010-02-03 01:18:43 +0000743 case OPT_emit_obj:
744 Opts.ProgramAction = frontend::EmitObj; break;
Nick Lewyckyba5f6ec2010-04-24 01:30:46 +0000745 case OPT_fixit_EQ:
Richard Smith1d489cf2012-11-01 04:30:05 +0000746 Opts.FixItSuffix = A->getValue();
Nick Lewyckyba5f6ec2010-04-24 01:30:46 +0000747 // fall-through!
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000748 case OPT_fixit:
749 Opts.ProgramAction = frontend::FixIt; break;
Douglas Gregor467dc882011-08-25 22:30:56 +0000750 case OPT_emit_module:
751 Opts.ProgramAction = frontend::GenerateModule; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000752 case OPT_emit_pch:
753 Opts.ProgramAction = frontend::GeneratePCH; break;
754 case OPT_emit_pth:
755 Opts.ProgramAction = frontend::GeneratePTH; break;
Daniel Dunbar27585952010-03-19 19:44:04 +0000756 case OPT_init_only:
757 Opts.ProgramAction = frontend::InitOnly; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000758 case OPT_fsyntax_only:
759 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
Douglas Gregorc544ba02013-03-27 16:47:18 +0000760 case OPT_module_file_info:
761 Opts.ProgramAction = frontend::ModuleFileInfo; break;
Stephen Hines651f13c2014-04-23 16:59:28 -0700762 case OPT_verify_pch:
763 Opts.ProgramAction = frontend::VerifyPCH; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000764 case OPT_print_decl_contexts:
765 Opts.ProgramAction = frontend::PrintDeclContext; break;
Douglas Gregorf033f1d2010-07-20 20:18:03 +0000766 case OPT_print_preamble:
767 Opts.ProgramAction = frontend::PrintPreamble; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000768 case OPT_E:
769 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000770 case OPT_rewrite_macros:
771 Opts.ProgramAction = frontend::RewriteMacros; break;
772 case OPT_rewrite_objc:
773 Opts.ProgramAction = frontend::RewriteObjC; break;
774 case OPT_rewrite_test:
775 Opts.ProgramAction = frontend::RewriteTest; break;
776 case OPT_analyze:
777 Opts.ProgramAction = frontend::RunAnalysis; break;
Ted Kremenek30660a82012-03-06 20:06:33 +0000778 case OPT_migrate:
779 Opts.ProgramAction = frontend::MigrateSource; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000780 case OPT_Eonly:
781 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
782 }
783 }
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000784
785 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000786 Opts.Plugins.push_back(A->getValue(0));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000787 Opts.ProgramAction = frontend::PluginAction;
Richard Smith1d489cf2012-11-01 04:30:05 +0000788 Opts.ActionName = A->getValue();
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000789
790 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
791 end = Args.filtered_end(); it != end; ++it) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000792 if ((*it)->getValue(0) == Opts.ActionName)
793 Opts.PluginArgs.push_back((*it)->getValue(1));
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000794 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000795 }
796
Nico Weber5aa74af2011-01-25 20:34:14 +0000797 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
Nico Weberf25649c2011-01-29 21:21:49 +0000798 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
799 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
800 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
801 end = Args.filtered_end(); it != end; ++it) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000802 if ((*it)->getValue(0) == Opts.AddPluginActions[i])
803 Opts.AddPluginArgs[i].push_back((*it)->getValue(1));
Nico Weberf25649c2011-01-29 21:21:49 +0000804 }
805 }
Nico Weber5aa74af2011-01-25 20:34:14 +0000806
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000807 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
808 Opts.CodeCompletionAt =
Richard Smith1d489cf2012-11-01 04:30:05 +0000809 ParsedSourceLocation::FromString(A->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000810 if (Opts.CodeCompletionAt.FileName.empty())
811 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +0000812 << A->getAsString(Args) << A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000813 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000814 Opts.DisableFree = Args.hasArg(OPT_disable_free);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000815
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000816 Opts.OutputFile = Args.getLastArgValue(OPT_o);
817 Opts.Plugins = Args.getAllArgValues(OPT_load);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000818 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
Daniel Dunbar9b5e9ae2009-12-03 07:01:58 +0000819 Opts.ShowHelp = Args.hasArg(OPT_help);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000820 Opts.ShowStats = Args.hasArg(OPT_print_stats);
821 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
Daniel Dunbar9b5e9ae2009-12-03 07:01:58 +0000822 Opts.ShowVersion = Args.hasArg(OPT_version);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000823 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
824 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
Nick Lewycky1450f262010-08-13 17:31:00 +0000825 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
Argyrios Kyrtzidis61d679a2012-01-26 02:40:48 +0000826 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
827 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
828 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
Alexander Kornienkoe34a0522012-07-26 16:01:23 +0000829 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
Richard Smithab297cc2013-06-24 01:45:33 +0000830 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
Douglas Gregor20c6f2e2013-01-28 18:38:02 +0000831 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
Douglas Gregorf575d6e2013-01-25 00:45:27 +0000832 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
Douglas Gregora6b00fc2013-01-23 22:38:11 +0000833
Dmitri Gribenkod99ef532012-07-02 17:35:10 +0000834 Opts.CodeCompleteOpts.IncludeMacros
835 = Args.hasArg(OPT_code_completion_macros);
836 Opts.CodeCompleteOpts.IncludeCodePatterns
837 = Args.hasArg(OPT_code_completion_patterns);
838 Opts.CodeCompleteOpts.IncludeGlobals
839 = !Args.hasArg(OPT_no_code_completion_globals);
840 Opts.CodeCompleteOpts.IncludeBriefComments
841 = Args.hasArg(OPT_code_completion_brief_comments);
842
Douglas Gregor453dbcb2012-01-26 07:55:45 +0000843 Opts.OverrideRecordLayoutsFile
844 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
John McCall8f0e8d22011-06-15 23:25:17 +0000845 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
Argyrios Kyrtzidis69325d52011-07-09 20:00:58 +0000846 OPT_arcmt_modify,
847 OPT_arcmt_migrate)) {
John McCall8f0e8d22011-06-15 23:25:17 +0000848 switch (A->getOption().getID()) {
849 default:
850 llvm_unreachable("missed a case");
851 case OPT_arcmt_check:
852 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
853 break;
854 case OPT_arcmt_modify:
855 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
856 break;
Argyrios Kyrtzidis69325d52011-07-09 20:00:58 +0000857 case OPT_arcmt_migrate:
858 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
859 break;
John McCall8f0e8d22011-06-15 23:25:17 +0000860 }
861 }
Ted Kremenek30660a82012-03-06 20:06:33 +0000862 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
Argyrios Kyrtzidis7ee20492011-07-19 17:20:03 +0000863 Opts.ARCMTMigrateReportOut
864 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
865 Opts.ARCMTMigrateEmitARCErrors
866 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
John McCall8f0e8d22011-06-15 23:25:17 +0000867
Ted Kremenek30660a82012-03-06 20:06:33 +0000868 if (Args.hasArg(OPT_objcmt_migrate_literals))
869 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
870 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
871 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
Fariborz Jahaniand4129992013-07-09 16:59:14 +0000872 if (Args.hasArg(OPT_objcmt_migrate_property))
873 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
Fariborz Jahanian5b98aba2013-08-28 23:22:46 +0000874 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
875 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
Fariborz Jahanian081099d2013-10-02 21:32:39 +0000876 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
877 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
Fariborz Jahaniana00f8732013-10-02 21:58:13 +0000878 if (Args.hasArg(OPT_objcmt_migrate_annotation))
879 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
Fariborz Jahaniancd569f22013-11-05 22:28:30 +0000880 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
881 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
Fariborz Jahaniana00f8732013-10-02 21:58:13 +0000882 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
883 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
884 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
885 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
886 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
887 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
Fariborz Jahanian39ebb022013-10-09 19:06:08 +0000888 if (Args.hasArg(OPT_objcmt_atomic_property))
889 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
Fariborz Jahanian5d2a2062013-11-13 00:08:36 +0000890 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
891 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
Stephen Hines651f13c2014-04-23 16:59:28 -0700892 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
893 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
Fariborz Jahanian081099d2013-10-02 21:32:39 +0000894 if (Args.hasArg(OPT_objcmt_migrate_all))
895 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
Ted Kremenek30660a82012-03-06 20:06:33 +0000896
Stephen Hines651f13c2014-04-23 16:59:28 -0700897 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
Argyrios Kyrtzidis2c050f62013-11-14 16:33:29 +0000898
Ted Kremenek30660a82012-03-06 20:06:33 +0000899 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
900 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
901 Diags.Report(diag::err_drv_argument_not_allowed_with)
902 << "ARC migration" << "ObjC migration";
903 }
904
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000905 InputKind DashX = IK_None;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000906 if (const Arg *A = Args.getLastArg(OPT_x)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000907 DashX = llvm::StringSwitch<InputKind>(A->getValue())
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000908 .Case("c", IK_C)
909 .Case("cl", IK_OpenCL)
Peter Collingbourne895fcca2010-12-01 03:15:20 +0000910 .Case("cuda", IK_CUDA)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000911 .Case("c++", IK_CXX)
912 .Case("objective-c", IK_ObjC)
913 .Case("objective-c++", IK_ObjCXX)
914 .Case("cpp-output", IK_PreprocessedC)
915 .Case("assembler-with-cpp", IK_Asm)
916 .Case("c++-cpp-output", IK_PreprocessedCXX)
917 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
Chris Lattner919f2ca2011-04-09 07:09:31 +0000918 .Case("objc-cpp-output", IK_PreprocessedObjC)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000919 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
Nico Weber1f7957d2011-08-13 19:03:50 +0000920 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000921 .Case("c-header", IK_C)
Peter Collingbourneae57ead2011-10-09 22:03:19 +0000922 .Case("cl-header", IK_OpenCL)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000923 .Case("objective-c-header", IK_ObjC)
924 .Case("c++-header", IK_CXX)
925 .Case("objective-c++-header", IK_ObjCXX)
Douglas Gregorc544ba02013-03-27 16:47:18 +0000926 .Cases("ast", "pcm", IK_AST)
Daniel Dunbarfaddc3e2010-06-07 23:26:47 +0000927 .Case("ir", IK_LLVM_IR)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000928 .Default(IK_None);
929 if (DashX == IK_None)
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000930 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +0000931 << A->getAsString(Args) << A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000932 }
933
934 // '-' is the default input if none is given.
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000935 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000936 Opts.Inputs.clear();
937 if (Inputs.empty())
938 Inputs.push_back("-");
939 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000940 InputKind IK = DashX;
941 if (IK == IK_None) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000942 IK = FrontendOptions::getInputKindForExtension(
Chris Lattner5f9e2722011-07-23 10:55:15 +0000943 StringRef(Inputs[i]).rsplit('.').second);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000944 // FIXME: Remove this hack.
945 if (i == 0)
946 DashX = IK;
947 }
Douglas Gregor1f6b2b52012-01-20 16:28:04 +0000948 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000949 }
950
951 return DashX;
952}
953
Daniel Dunbar8b9adfe2009-12-15 00:06:45 +0000954std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
955 void *MainAddr) {
Rafael Espindola3473c8d2013-06-26 05:40:30 +0000956 SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000957
Rafael Espindola3473c8d2013-06-26 05:40:30 +0000958 if (!P.empty()) {
959 llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
960 llvm::sys::path::remove_filename(P); // Remove /bin from foo/bin
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000961
962 // Get foo/lib/clang/<version>/include
Benjamin Kramerceb6dc82013-06-28 16:25:46 +0000963 llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000964 }
965
966 return P.str();
967}
968
Daniel Dunbar1e69fe32009-12-13 03:45:58 +0000969static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +0000970 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000971 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000972 Opts.Verbose = Args.hasArg(OPT_v);
Francois Pichetc91562c2011-10-10 20:34:10 +0000973 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
Daniel Dunbara268fc02011-10-11 18:20:10 +0000974 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
Douglas Gregor4c2bcad2010-03-24 20:13:48 +0000975 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
Bob Wilson13c4f212011-06-21 21:12:29 +0000976 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
Richard Smith1d489cf2012-11-01 04:30:05 +0000977 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000978 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
Douglas Gregor953a61f2013-02-07 19:01:24 +0000979 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
Stephen Hines651f13c2014-04-23 16:59:28 -0700980 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
Douglas Gregor6e975c42011-09-13 23:15:45 +0000981 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
Daniel Jasper056ec122013-08-05 20:26:17 +0000982 // -fmodules implies -fmodule-maps
983 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000984 Opts.ModuleCachePruneInterval =
985 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
986 Opts.ModuleCachePruneAfter =
987 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
Stephen Hines651f13c2014-04-23 16:59:28 -0700988 Opts.ModulesValidateOncePerBuildSession =
989 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
990 Opts.BuildSessionTimestamp =
991 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
992 Opts.ModulesValidateSystemHeaders =
993 Args.hasArg(OPT_fmodules_validate_system_headers);
994
Douglas Gregor2a060852013-02-07 00:21:12 +0000995 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro),
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000996 ie = Args.filtered_end();
997 it != ie; ++it) {
Douglas Gregor005d51b2013-02-07 01:18:48 +0000998 StringRef MacroDef = (*it)->getValue();
999 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
Douglas Gregor2a060852013-02-07 00:21:12 +00001000 }
Daniel Jasper1b8840c2013-09-24 09:27:13 +00001001 std::vector<std::string> ModuleMapFiles =
1002 Args.getAllArgValues(OPT_fmodule_map_file);
1003 Opts.ModuleMapFiles.insert(ModuleMapFiles.begin(), ModuleMapFiles.end());
Douglas Gregor2a060852013-02-07 00:21:12 +00001004
Douglas Gregor65e02fa2011-07-28 04:45:53 +00001005 // Add -I..., -F..., and -index-header-map options in order.
1006 bool IsIndexHeaderMap = false;
1007 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
1008 OPT_index_header_map),
1009 ie = Args.filtered_end(); it != ie; ++it) {
1010 if ((*it)->getOption().matches(OPT_index_header_map)) {
1011 // -index-header-map applies to the next -I or -F.
1012 IsIndexHeaderMap = true;
1013 continue;
1014 }
1015
1016 frontend::IncludeDirGroup Group
1017 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
1018
Daniel Dunbareab66522013-01-25 01:50:47 +00001019 Opts.AddPath((*it)->getValue(), Group,
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001020 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true);
Douglas Gregor65e02fa2011-07-28 04:45:53 +00001021 IsIndexHeaderMap = false;
1022 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001023
Daniel Dunbarf3fc21f2013-01-25 01:50:34 +00001024 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
Chris Lattner5f9e2722011-07-23 10:55:15 +00001025 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001026 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1027 OPT_iwithprefixbefore),
1028 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001029 const Arg *A = *it;
1030 if (A->getOption().matches(OPT_iprefix))
Richard Smith1d489cf2012-11-01 04:30:05 +00001031 Prefix = A->getValue();
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001032 else if (A->getOption().matches(OPT_iwithprefix))
Richard Smith1d489cf2012-11-01 04:30:05 +00001033 Opts.AddPath(Prefix.str() + A->getValue(),
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001034 frontend::After, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001035 else
Richard Smith1d489cf2012-11-01 04:30:05 +00001036 Opts.AddPath(Prefix.str() + A->getValue(),
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001037 frontend::Angled, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001038 }
1039
1040 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1041 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001042 Opts.AddPath((*it)->getValue(), frontend::After, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001043 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1044 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001045 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001046 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
Joerg Sonnenberger2df66472011-02-22 00:40:56 +00001047 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001048 Opts.AddPath((*it)->getValue(), frontend::System, false,
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001049 !(*it)->getOption().matches(OPT_iwithsysroot));
Daniel Dunbar024f4be2011-10-18 20:40:38 +00001050 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
1051 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001052 Opts.AddPath((*it)->getValue(), frontend::System, true, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001053
1054 // Add the paths for the various language specific isystem flags.
1055 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
1056 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001057 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001058 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
1059 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001060 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001061 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
1062 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001063 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001064 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
1065 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001066 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true);
Chandler Carruthac2bc4d2011-11-05 08:30:29 +00001067
1068 // Add the internal paths from a driver that detects standard include paths.
1069 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
Chandler Carruth07643082011-11-07 09:17:31 +00001070 OPT_internal_externc_isystem),
Chandler Carruthac2bc4d2011-11-05 08:30:29 +00001071 E = Args.filtered_end();
Daniel Dunbaref845542013-01-30 00:19:24 +00001072 I != E; ++I) {
1073 frontend::IncludeDirGroup Group = frontend::System;
1074 if ((*I)->getOption().matches(OPT_internal_externc_isystem))
1075 Group = frontend::ExternCSystem;
Daniel Dunbar59fd6352013-01-30 00:34:26 +00001076 Opts.AddPath((*I)->getValue(), Group, false, true);
Daniel Dunbaref845542013-01-30 00:19:24 +00001077 }
Richard Smithf122a132012-06-13 20:27:03 +00001078
1079 // Add the path prefixes which are implicitly treated as being system headers.
Stephen Hines651f13c2014-04-23 16:59:28 -07001080 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix,
1081 OPT_no_system_header_prefix),
Richard Smithf122a132012-06-13 20:27:03 +00001082 E = Args.filtered_end();
1083 I != E; ++I)
Stephen Hines651f13c2014-04-23 16:59:28 -07001084 Opts.AddSystemHeaderPrefix(
1085 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix));
1086
1087 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay),
1088 E = Args.filtered_end(); I != E; ++I)
1089 Opts.AddVFSOverlayFile((*I)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001090}
1091
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001092void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1093 LangStandard::Kind LangStd) {
Chris Lattnerfc8f0e12011-04-15 05:22:18 +00001094 // Set some properties which depend solely on the input kind; it would be nice
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001095 // to move these to the language standard, and have the driver resolve the
1096 // input kind + language standard.
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001097 if (IK == IK_Asm) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001098 Opts.AsmPreprocessor = 1;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001099 } else if (IK == IK_ObjC ||
1100 IK == IK_ObjCXX ||
1101 IK == IK_PreprocessedObjC ||
1102 IK == IK_PreprocessedObjCXX) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001103 Opts.ObjC1 = Opts.ObjC2 = 1;
1104 }
1105
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001106 if (LangStd == LangStandard::lang_unspecified) {
1107 // Based on the base language, pick one.
1108 switch (IK) {
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001109 case IK_None:
1110 case IK_AST:
Daniel Dunbarfaddc3e2010-06-07 23:26:47 +00001111 case IK_LLVM_IR:
David Blaikieb219cfc2011-09-23 05:06:16 +00001112 llvm_unreachable("Invalid input kind!");
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001113 case IK_OpenCL:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001114 LangStd = LangStandard::lang_opencl;
1115 break;
Peter Collingbourne895fcca2010-12-01 03:15:20 +00001116 case IK_CUDA:
1117 LangStd = LangStandard::lang_cuda;
1118 break;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001119 case IK_Asm:
1120 case IK_C:
1121 case IK_PreprocessedC:
1122 case IK_ObjC:
1123 case IK_PreprocessedObjC:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001124 LangStd = LangStandard::lang_gnu99;
1125 break;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001126 case IK_CXX:
1127 case IK_PreprocessedCXX:
1128 case IK_ObjCXX:
1129 case IK_PreprocessedObjCXX:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001130 LangStd = LangStandard::lang_gnucxx98;
1131 break;
1132 }
1133 }
1134
1135 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
Nico Weberbb236282012-11-11 07:02:14 +00001136 Opts.LineComment = Std.hasLineComments();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001137 Opts.C99 = Std.isC99();
Benjamin Kramerffbe9b92011-12-23 17:00:35 +00001138 Opts.C11 = Std.isC11();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001139 Opts.CPlusPlus = Std.isCPlusPlus();
Richard Smith80ad52f2013-01-02 11:42:31 +00001140 Opts.CPlusPlus11 = Std.isCPlusPlus11();
Richard Smith5ba49c02012-10-17 23:07:52 +00001141 Opts.CPlusPlus1y = Std.isCPlusPlus1y();
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001142 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001143 Opts.Digraphs = Std.hasDigraphs();
1144 Opts.GNUMode = Std.isGNUMode();
1145 Opts.GNUInline = !Std.isC99();
1146 Opts.HexFloats = Std.hasHexFloats();
1147 Opts.ImplicitInt = Std.hasImplicitInt();
1148
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001149 // Set OpenCL Version.
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001150 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1151 if (LangStd == LangStandard::lang_opencl)
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001152 Opts.OpenCLVersion = 100;
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001153 else if (LangStd == LangStandard::lang_opencl11)
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001154 Opts.OpenCLVersion = 110;
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001155 else if (LangStd == LangStandard::lang_opencl12)
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001156 Opts.OpenCLVersion = 120;
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001157
1158 // OpenCL has some additional defaults.
1159 if (Opts.OpenCL) {
Tobias Grosser37c31c22011-09-21 18:28:29 +00001160 Opts.AltiVec = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001161 Opts.CXXOperatorNames = 1;
Tobias Grosser37c31c22011-09-21 18:28:29 +00001162 Opts.LaxVectorConversions = 0;
Peter Collingbournef315fa82011-02-14 01:42:53 +00001163 Opts.DefaultFPContract = 1;
Joey Gouly19dbb202013-01-23 11:56:20 +00001164 Opts.NativeHalfType = 1;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001165 }
1166
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001167 Opts.CUDA = LangStd == LangStandard::lang_cuda || IK == IK_CUDA;
Peter Collingbourne895fcca2010-12-01 03:15:20 +00001168
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001169 // OpenCL and C++ both have bool, true, false keywords.
1170 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1171
Stephen Hines651f13c2014-04-23 16:59:28 -07001172 // OpenCL has half keyword
1173 Opts.Half = Opts.OpenCL;
1174
Abramo Bagnara5b86ffd2012-09-05 17:30:57 +00001175 // C++ has wchar_t keyword.
1176 Opts.WChar = Opts.CPlusPlus;
1177
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001178 Opts.GNUKeywords = Opts.GNUMode;
1179 Opts.CXXOperatorNames = Opts.CPlusPlus;
1180
1181 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1182 // is specified, or -std is set to a conforming mode.
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001183 // Trigraphs are disabled by default in c++1z onwards.
1184 Opts.Trigraphs = !Opts.GNUMode && !Opts.CPlusPlus1z;
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001185
1186 Opts.DollarIdents = !Opts.AsmPreprocessor;
Richard Smith3cebc732013-11-05 09:12:18 +00001187
1188 // C++1y onwards has sized global deallocation functions.
1189 Opts.SizedDeallocation = Opts.CPlusPlus1y;
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001190}
1191
John McCalla880b192013-02-19 01:57:35 +00001192/// Attempt to parse a visibility value out of the given argument.
1193static Visibility parseVisibility(Arg *arg, ArgList &args,
1194 DiagnosticsEngine &diags) {
1195 StringRef value = arg->getValue();
1196 if (value == "default") {
1197 return DefaultVisibility;
1198 } else if (value == "hidden") {
1199 return HiddenVisibility;
1200 } else if (value == "protected") {
1201 // FIXME: diagnose if target does not support protected visibility
1202 return ProtectedVisibility;
1203 }
1204
1205 diags.Report(diag::err_drv_invalid_value)
1206 << arg->getAsString(args) << value;
1207 return DefaultVisibility;
1208}
1209
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001210static unsigned parseMSCVersion(ArgList &Args, DiagnosticsEngine &Diags) {
1211 auto Arg = Args.getLastArg(OPT_fmsc_version);
1212 if (!Arg)
1213 return 0;
1214
1215 // The MSC versioning scheme involves four versioning components:
1216 // - Major
1217 // - Minor
1218 // - Build
1219 // - Patch
1220 //
1221 // We accept either the old style (_MSC_VER) value, or a _MSC_FULL_VER value.
1222 // Additionally, the value may be provided in the form of a more readable
1223 // MM.mm.bbbbb.pp version.
1224 //
1225 // Unfortunately, due to the bit-width limitations, we cannot currently encode
1226 // the value for the patch level.
1227
1228 StringRef Value = Arg->getValue();
1229
1230 // parse the compatible old form of _MSC_VER or the newer _MSC_FULL_VER
1231 if (Value.find('.') == StringRef::npos) {
1232 unsigned Version = 0;
1233 if (Value.getAsInteger(10, Version)) {
1234 Diags.Report(diag::err_drv_invalid_value)
1235 << Arg->getAsString(Args) << Value;
1236 return 0;
1237 }
1238 if (Version < 100)
1239 Version = Version * 100; // major -> major.minor
1240 if (Version < 100000)
1241 Version = Version * 100000; // major.minor -> major.minor.build
1242 return Version;
1243 }
1244
1245 // parse the dot-delimited component version
1246 unsigned VC[4] = {0};
1247 SmallVector<StringRef, 4> Components;
1248
1249 Value.split(Components, ".", llvm::array_lengthof(VC));
1250 for (unsigned CI = 0,
1251 CE = std::min(Components.size(), llvm::array_lengthof(VC));
1252 CI < CE; ++CI) {
1253 if (Components[CI].getAsInteger(10, VC[CI])) {
1254 Diags.Report(diag::err_drv_invalid_value)
1255 << Arg->getAsString(Args) << Value;
1256 return 0;
1257 }
1258 }
1259
1260 // FIXME we cannot encode the patch level
1261 return VC[0] * 10000000 + VC[1] * 100000 + VC[2];
1262}
1263
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001264static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
David Blaikied6471f72011-09-25 23:23:43 +00001265 DiagnosticsEngine &Diags) {
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001266 // FIXME: Cleanup per-file based stuff.
1267 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1268 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001269 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001270#define LANGSTANDARD(id, name, desc, features) \
1271 .Case(name, LangStandard::lang_##id)
1272#include "clang/Frontend/LangStandards.def"
1273 .Default(LangStandard::lang_unspecified);
1274 if (LangStd == LangStandard::lang_unspecified)
1275 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +00001276 << A->getAsString(Args) << A->getValue();
Chad Rosierb2dba4b2011-05-02 19:24:53 +00001277 else {
Stephen Hines651f13c2014-04-23 16:59:28 -07001278 // Valid standard, check to make sure language and standard are
1279 // compatible.
Chad Rosierb2dba4b2011-05-02 19:24:53 +00001280 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1281 switch (IK) {
1282 case IK_C:
1283 case IK_ObjC:
1284 case IK_PreprocessedC:
1285 case IK_PreprocessedObjC:
1286 if (!(Std.isC89() || Std.isC99()))
1287 Diags.Report(diag::err_drv_argument_not_allowed_with)
1288 << A->getAsString(Args) << "C/ObjC";
1289 break;
1290 case IK_CXX:
1291 case IK_ObjCXX:
1292 case IK_PreprocessedCXX:
1293 case IK_PreprocessedObjCXX:
1294 if (!Std.isCPlusPlus())
1295 Diags.Report(diag::err_drv_argument_not_allowed_with)
1296 << A->getAsString(Args) << "C++/ObjC++";
1297 break;
1298 case IK_OpenCL:
1299 if (!Std.isC99())
1300 Diags.Report(diag::err_drv_argument_not_allowed_with)
1301 << A->getAsString(Args) << "OpenCL";
1302 break;
1303 case IK_CUDA:
1304 if (!Std.isCPlusPlus())
1305 Diags.Report(diag::err_drv_argument_not_allowed_with)
1306 << A->getAsString(Args) << "CUDA";
1307 break;
1308 default:
1309 break;
1310 }
1311 }
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001312 }
1313
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001314 // -cl-std only applies for OpenCL language standards.
1315 // Override the -std option in this case.
Peter Collingbourne91252d12010-12-04 01:51:40 +00001316 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001317 LangStandard::Kind OpenCLLangStd
Richard Smith1d489cf2012-11-01 04:30:05 +00001318 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001319 .Case("CL", LangStandard::lang_opencl)
1320 .Case("CL1.1", LangStandard::lang_opencl11)
1321 .Case("CL1.2", LangStandard::lang_opencl12)
1322 .Default(LangStandard::lang_unspecified);
1323
1324 if (OpenCLLangStd == LangStandard::lang_unspecified) {
Peter Collingbourne91252d12010-12-04 01:51:40 +00001325 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +00001326 << A->getAsString(Args) << A->getValue();
Peter Collingbourne91252d12010-12-04 01:51:40 +00001327 }
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001328 else
1329 LangStd = OpenCLLangStd;
Peter Collingbourne91252d12010-12-04 01:51:40 +00001330 }
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001331
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001332 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1333
Chandler Carrutheb5d7b72010-04-17 20:17:31 +00001334 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1335 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1336 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1337 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1338 // name, as it doesn't seem a useful distinction.
1339 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001340 Opts.GNUKeywords);
Chandler Carrutheb5d7b72010-04-17 20:17:31 +00001341
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001342 if (Args.hasArg(OPT_fno_operator_names))
1343 Opts.CXXOperatorNames = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001344
John McCallf85e1932011-06-15 23:02:42 +00001345 if (Opts.ObjC1) {
John McCall260611a2012-06-20 06:18:46 +00001346 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001347 StringRef value = arg->getValue();
John McCall260611a2012-06-20 06:18:46 +00001348 if (Opts.ObjCRuntime.tryParse(value))
1349 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1350 }
1351
John McCallf85e1932011-06-15 23:02:42 +00001352 if (Args.hasArg(OPT_fobjc_gc_only))
Douglas Gregore289d812011-09-13 17:21:33 +00001353 Opts.setGC(LangOptions::GCOnly);
John McCallf85e1932011-06-15 23:02:42 +00001354 else if (Args.hasArg(OPT_fobjc_gc))
Douglas Gregore289d812011-09-13 17:21:33 +00001355 Opts.setGC(LangOptions::HybridGC);
John McCallf85e1932011-06-15 23:02:42 +00001356 else if (Args.hasArg(OPT_fobjc_arc)) {
1357 Opts.ObjCAutoRefCount = 1;
John McCall0a7dd782012-08-21 02:47:43 +00001358 if (!Opts.ObjCRuntime.allowsARC())
1359 Diags.Report(diag::err_arc_unsupported_on_runtime);
John McCallf85e1932011-06-15 23:02:42 +00001360
John McCall0a7dd782012-08-21 02:47:43 +00001361 // Only set ObjCARCWeak if ARC is enabled.
1362 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1363 Opts.ObjCARCWeak = 1;
1364 else
1365 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1366 }
John McCall9f084a32011-07-06 00:26:06 +00001367
John McCallf85e1932011-06-15 23:02:42 +00001368 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1369 Opts.ObjCInferRelatedResultType = 0;
Fariborz Jahaniand9553e32013-11-01 21:58:17 +00001370
1371 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1372 Opts.ObjCSubscriptingLegacyRuntime =
1373 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
John McCallf85e1932011-06-15 23:02:42 +00001374 }
1375
Rafael Espindolafb3f4aa2011-06-02 16:13:27 +00001376 if (Args.hasArg(OPT_fgnu89_inline))
1377 Opts.GNUInline = 1;
1378
Fariborz Jahanian142f9e92011-02-04 00:01:24 +00001379 if (Args.hasArg(OPT_fapple_kext)) {
1380 if (!Opts.CPlusPlus)
1381 Diags.Report(diag::warn_c_kext);
1382 else
1383 Opts.AppleKext = 1;
1384 }
1385
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001386 if (Args.hasArg(OPT_print_ivar_layout))
1387 Opts.ObjCGCBitmapPrint = 1;
Fariborz Jahanian33e982b2010-04-22 20:26:39 +00001388 if (Args.hasArg(OPT_fno_constant_cfstrings))
1389 Opts.NoConstantCFStrings = 1;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001390
1391 if (Args.hasArg(OPT_faltivec))
1392 Opts.AltiVec = 1;
1393
1394 if (Args.hasArg(OPT_pthread))
1395 Opts.POSIXThreads = 1;
1396
John McCalla880b192013-02-19 01:57:35 +00001397 // The value-visibility mode defaults to "default".
1398 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1399 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1400 } else {
1401 Opts.setValueVisibilityMode(DefaultVisibility);
1402 }
1403
1404 // The type-visibility mode defaults to the value-visibility mode.
1405 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1406 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1407 } else {
1408 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1409 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001410
Douglas Gregor7cf84d62010-06-15 17:05:35 +00001411 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1412 Opts.InlineVisibilityHidden = 1;
Michael J. Spencer20249a12010-10-21 03:16:25 +00001413
David Chisnall7f18e672010-09-17 18:29:54 +00001414 if (Args.hasArg(OPT_ftrapv)) {
Michael J. Spencer20249a12010-10-21 03:16:25 +00001415 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
David Chisnall7f18e672010-09-17 18:29:54 +00001416 // Set the handler, if one is specified.
1417 Opts.OverflowHandler =
1418 Args.getLastArgValue(OPT_ftrapv_handler);
1419 }
Chris Lattnera4d71452010-06-26 21:25:03 +00001420 else if (Args.hasArg(OPT_fwrapv))
Michael J. Spencer20249a12010-10-21 03:16:25 +00001421 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001422
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001423 if (Args.hasArg(OPT_trigraphs))
1424 Opts.Trigraphs = 1;
1425
Daniel Dunbar8663b182009-12-16 20:10:18 +00001426 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1427 OPT_fno_dollars_in_identifiers,
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001428 Opts.DollarIdents);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001429 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
Stephen Hines651f13c2014-04-23 16:59:28 -07001430 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1431 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
Chad Rosier4fb10d12012-12-05 23:35:10 +00001432 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001433 Opts.MSCVersion = parseMSCVersion(Args, Diags);
Stephen Hines651f13c2014-04-23 16:59:28 -07001434 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
Dawn Perchik400b6072010-09-02 23:59:25 +00001435 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001436 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
Chandler Carruth50465d12011-04-23 06:30:43 +00001437 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1438 Opts.ConstStrings);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001439 if (Args.hasArg(OPT_fno_lax_vector_conversions))
Anders Carlssona508b7d2010-02-06 23:23:06 +00001440 Opts.LaxVectorConversions = 0;
1441 if (Args.hasArg(OPT_fno_threadsafe_statics))
Anders Carlsson824d7ea2010-02-11 08:02:13 +00001442 Opts.ThreadsafeStatics = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001443 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
Anders Carlssone9b801f2011-02-22 01:52:06 +00001444 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
Anders Carlsson0761e442011-02-23 03:16:42 +00001445 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1446 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
Daniel Dunbar2ed42282011-03-18 21:23:38 +00001447 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
Anders Carlsson0761e442011-02-23 03:16:42 +00001448
Mike Stumpde050572009-12-02 18:57:08 +00001449 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001450 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001451 Opts.Blocks = Args.hasArg(OPT_fblocks);
John McCall13db5cf2011-09-09 20:41:01 +00001452 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
Douglas Gregor752c74d2012-01-03 17:07:34 +00001453 Opts.Modules = Args.hasArg(OPT_fmodules);
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001454 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1455 Opts.ModulesDeclUse =
1456 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1457 Opts.ModulesSearchAll = Opts.Modules &&
1458 !Args.hasArg(OPT_fno_modules_search_all) &&
1459 Args.hasArg(OPT_fmodules_search_all);
1460 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
David Tweed8bc56022013-09-09 09:17:24 +00001461 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
Abramo Bagnara5b86ffd2012-09-05 17:30:57 +00001462 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
Stephen Hines651f13c2014-04-23 16:59:28 -07001463 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
Argyrios Kyrtzidis9a2b9d72010-10-08 00:25:19 +00001464 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001465 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1466 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
Eli Bendersky264d2062013-07-23 00:13:01 +00001467 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
Nuno Lopesfc284482009-12-16 16:59:22 +00001468 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
Richard Smith3cebc732013-11-05 09:12:18 +00001469 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001470 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
John McCall7002f4c2010-04-09 19:03:51 +00001471 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001472 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
David Tweed8bc56022013-09-09 09:17:24 +00001473 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001474 Opts.InstantiationDepth =
1475 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
Richard Smith195dd7c2013-11-06 19:31:51 +00001476 Opts.ArrowDepth =
1477 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001478 Opts.ConstexprCallDepth =
1479 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1480 Opts.ConstexprStepLimit =
1481 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1482 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
Francois Pichet8387e2a2011-04-22 22:18:13 +00001483 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001484 Opts.NumLargeByValueCopy =
1485 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
Douglas Gregor6f755502011-02-01 15:15:22 +00001486 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001487 Opts.ObjCConstantStringClass =
1488 Args.getLastArgValue(OPT_fconstant_string_class);
Ted Kremenekc32647d2010-12-23 21:35:43 +00001489 Opts.ObjCDefaultSynthProperties =
Rafael Espindola14f98892013-09-27 20:21:48 +00001490 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
Fariborz Jahanian3d145f62012-11-15 19:02:45 +00001491 Opts.EncodeExtendedBlockSig =
1492 Args.hasArg(OPT_fencode_extended_block_signature);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001493 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001494 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1495 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1496 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001497 Opts.Static = Args.hasArg(OPT_static_define);
Douglas Gregor453dbcb2012-01-26 07:55:45 +00001498 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1499 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1500 || Args.hasArg(OPT_fdump_record_layouts);
Anders Carlsson046c2942010-04-17 20:15:18 +00001501 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
Douglas Gregora0068fc2010-07-09 17:35:33 +00001502 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
Daniel Dunbarfb937b82010-04-15 15:06:22 +00001503 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
Peter Collingbourne09821362010-12-04 01:50:56 +00001504 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
Peter Collingbournef0840822010-12-04 01:51:23 +00001505 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
Roman Divackycfe9af22011-03-01 17:40:53 +00001506 Opts.MRTD = Args.hasArg(OPT_mrtd);
Tony Linthicum96319392011-12-12 21:14:55 +00001507 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
Peter Collingbourne207f4d82011-03-18 22:38:29 +00001508 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
John McCalla5fc4722011-04-09 22:50:59 +00001509 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
John McCall48218c62011-07-13 17:56:40 +00001510 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
Sean Callanan50a9a122012-02-04 01:29:37 +00001511 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
Ted Kremenek30660a82012-03-06 20:06:33 +00001512 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
Eli Friedman19bda3a2011-11-02 01:53:16 +00001513 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
Douglas Gregorb86b8dc2011-11-15 19:35:01 +00001514 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001515
David Tweed1eef8522013-09-13 12:04:22 +00001516 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1517 switch (llvm::StringSwitch<unsigned>(A->getValue())
1518 .Case("target", LangOptions::ASMM_Target)
1519 .Case("no", LangOptions::ASMM_Off)
1520 .Case("yes", LangOptions::ASMM_On)
1521 .Default(255)) {
1522 default:
1523 Diags.Report(diag::err_drv_invalid_value)
1524 << "-faddress-space-map-mangling=" << A->getValue();
1525 break;
1526 case LangOptions::ASMM_Target:
1527 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1528 break;
1529 case LangOptions::ASMM_On:
1530 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1531 break;
1532 case LangOptions::ASMM_Off:
1533 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1534 break;
1535 }
1536 }
1537
Stephen Hines651f13c2014-04-23 16:59:28 -07001538 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1539 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1540 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1541 A->getValue())
1542 .Case("single",
1543 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1544 .Case("multiple",
1545 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1546 .Case("virtual",
1547 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1548 .Default(LangOptions::PPTMK_BestCase);
1549 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1550 Diags.Report(diag::err_drv_invalid_value)
1551 << "-fms-memptr-rep=" << A->getValue();
1552
1553 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1554 }
1555
1556 // Check if -fopenmp= is specified.
1557 if (const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ)) {
1558 Opts.OpenMP = llvm::StringSwitch<bool>(A->getValue())
1559 .Case("libiomp5", true)
1560 .Default(false);
1561 }
Douglas Gregor50a70cd2013-01-15 06:45:29 +00001562
Chandler Carruth1cfe3c32011-04-23 09:27:53 +00001563 // Record whether the __DEPRECATED define was requested.
1564 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1565 OPT_fno_deprecated_macro,
1566 Opts.Deprecated);
1567
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001568 // FIXME: Eliminate this dependency.
Dylan Noblesmithf23e8d22012-08-08 16:09:15 +00001569 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
Chad Rosier05422362013-04-10 21:30:03 +00001570 OptSize = getOptimizationLevelSize(Args);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001571 Opts.Optimize = Opt != 0;
Dylan Noblesmithf23e8d22012-08-08 16:09:15 +00001572 Opts.OptimizeSize = OptSize != 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001573
1574 // This is the __NO_INLINE__ define, which just depends on things like the
1575 // optimization level and -fno-inline, not actually whether the backend has
1576 // inlining enabled.
Chad Rosierfc055f92012-03-15 22:31:42 +00001577 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001578
Chad Rosierb82e1172013-04-24 18:09:54 +00001579 Opts.FastMath = Args.hasArg(OPT_ffast_math);
Bob Wilson455e72e2012-07-19 03:52:53 +00001580 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only);
Chandler Carruthabf07a72012-01-02 14:19:45 +00001581
Ted Kremenek127ff2e2012-09-13 06:41:18 +00001582 Opts.RetainCommentsFromSystemHeaders =
1583 Args.hasArg(OPT_fretain_comments_from_system_headers);
1584
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001585 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001586 switch (SSP) {
1587 default:
1588 Diags.Report(diag::err_drv_invalid_value)
1589 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1590 break;
Douglas Gregore289d812011-09-13 17:21:33 +00001591 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1592 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
Stephen Hines651f13c2014-04-23 16:59:28 -07001593 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1594 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001595 }
Richard Smithc4dabad2012-11-05 22:04:41 +00001596
1597 // Parse -fsanitize= arguments.
1598 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ);
1599 for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) {
1600 // Since the Opts.Sanitize* values are bitfields, it's a little tricky to
1601 // efficiently map string values to them. Perform the mapping indirectly:
1602 // convert strings to enumerated values, then switch over the enum to set
1603 // the right bitfield value.
1604 enum Sanitizer {
1605#define SANITIZER(NAME, ID) \
1606 ID,
1607#include "clang/Basic/Sanitizers.def"
1608 Unknown
1609 };
1610 switch (llvm::StringSwitch<unsigned>(Sanitizers[I])
1611#define SANITIZER(NAME, ID) \
1612 .Case(NAME, ID)
1613#include "clang/Basic/Sanitizers.def"
1614 .Default(Unknown)) {
1615#define SANITIZER(NAME, ID) \
1616 case ID: \
Will Dietz4f45bc02013-01-18 11:30:38 +00001617 Opts.Sanitize.ID = true; \
Richard Smithc4dabad2012-11-05 22:04:41 +00001618 break;
1619#include "clang/Basic/Sanitizers.def"
1620
1621 case Unknown:
1622 Diags.Report(diag::err_drv_invalid_value)
1623 << "-fsanitize=" << Sanitizers[I];
1624 break;
1625 }
1626 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001627}
1628
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001629static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001630 FileManager &FileMgr,
David Blaikied6471f72011-09-25 23:23:43 +00001631 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +00001632 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001633 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1634 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001635 if (const Arg *A = Args.getLastArg(OPT_token_cache))
Richard Smith1d489cf2012-11-01 04:30:05 +00001636 Opts.TokenCache = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001637 else
1638 Opts.TokenCache = Opts.ImplicitPTHInclude;
1639 Opts.UsePredefines = !Args.hasArg(OPT_undef);
Douglas Gregor94dc8f62010-03-19 16:15:56 +00001640 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001641 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001642
Argyrios Kyrtzidisb9728582010-10-14 20:14:18 +00001643 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001644 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
1645 ie = Args.filtered_end(); it != ie; ++it) {
1646 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001647 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001648 }
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001649
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001650 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001651 StringRef Value(A->getValue());
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001652 size_t Comma = Value.find(',');
1653 unsigned Bytes = 0;
1654 unsigned EndOfLine = 0;
Michael J. Spencer20249a12010-10-21 03:16:25 +00001655
Chris Lattner5f9e2722011-07-23 10:55:15 +00001656 if (Comma == StringRef::npos ||
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001657 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1658 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1659 Diags.Report(diag::err_drv_preamble_format);
1660 else {
1661 Opts.PrecompiledPreambleBytes.first = Bytes;
1662 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1663 }
1664 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00001665
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001666 // Add macros from the command line.
1667 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1668 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001669 if ((*it)->getOption().matches(OPT_D))
Richard Smith1d489cf2012-11-01 04:30:05 +00001670 Opts.addMacroDef((*it)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001671 else
Richard Smith1d489cf2012-11-01 04:30:05 +00001672 Opts.addMacroUndef((*it)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001673 }
1674
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001675 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001676
1677 // Add the ordered list of -includes.
Argyrios Kyrtzidis3ad86fd2013-02-05 16:36:52 +00001678 for (arg_iterator it = Args.filtered_begin(OPT_include),
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001679 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001680 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001681 Opts.Includes.push_back(A->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001682 }
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001683
Argyrios Kyrtzidisb0f4b9a2011-03-09 17:21:42 +00001684 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
1685 ie = Args.filtered_end(); it != ie; ++it) {
1686 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001687 Opts.ChainedIncludes.push_back(A->getValue());
Argyrios Kyrtzidisb0f4b9a2011-03-09 17:21:42 +00001688 }
1689
Chris Lattnerdd173942010-04-14 03:54:58 +00001690 // Include 'altivec.h' if -faltivec option present
1691 if (Args.hasArg(OPT_faltivec))
1692 Opts.Includes.push_back("altivec.h");
1693
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001694 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1695 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001696 const Arg *A = *it;
Chris Lattner5f9e2722011-07-23 10:55:15 +00001697 std::pair<StringRef,StringRef> Split =
Richard Smith1d489cf2012-11-01 04:30:05 +00001698 StringRef(A->getValue()).split(';');
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001699
1700 if (Split.second.empty()) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001701 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001702 continue;
1703 }
1704
1705 Opts.addRemappedFile(Split.first, Split.second);
1706 }
John McCallf85e1932011-06-15 23:02:42 +00001707
1708 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001709 StringRef Name = A->getValue();
John McCallf85e1932011-06-15 23:02:42 +00001710 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1711 .Case("libc++", ARCXX_libcxx)
1712 .Case("libstdc++", ARCXX_libstdcxx)
1713 .Case("none", ARCXX_nolib)
1714 .Default(~0U);
1715 if (Library == ~0U)
1716 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1717 else
1718 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1719 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001720}
1721
1722static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
Jordan Rose74c24982013-01-30 01:52:57 +00001723 ArgList &Args,
1724 frontend::ActionKind Action) {
James Molloybfd7a522012-05-01 14:57:16 +00001725 using namespace options;
Jordan Rose74c24982013-01-30 01:52:57 +00001726
1727 switch (Action) {
1728 case frontend::ASTDeclList:
1729 case frontend::ASTDump:
Jordan Rose74c24982013-01-30 01:52:57 +00001730 case frontend::ASTPrint:
1731 case frontend::ASTView:
1732 case frontend::EmitAssembly:
1733 case frontend::EmitBC:
1734 case frontend::EmitHTML:
1735 case frontend::EmitLLVM:
1736 case frontend::EmitLLVMOnly:
1737 case frontend::EmitCodeGenOnly:
1738 case frontend::EmitObj:
1739 case frontend::FixIt:
1740 case frontend::GenerateModule:
1741 case frontend::GeneratePCH:
1742 case frontend::GeneratePTH:
1743 case frontend::ParseSyntaxOnly:
Douglas Gregorc544ba02013-03-27 16:47:18 +00001744 case frontend::ModuleFileInfo:
Stephen Hines651f13c2014-04-23 16:59:28 -07001745 case frontend::VerifyPCH:
Jordan Rose74c24982013-01-30 01:52:57 +00001746 case frontend::PluginAction:
1747 case frontend::PrintDeclContext:
1748 case frontend::RewriteObjC:
1749 case frontend::RewriteTest:
1750 case frontend::RunAnalysis:
1751 case frontend::MigrateSource:
1752 Opts.ShowCPP = 0;
1753 break;
1754
1755 case frontend::DumpRawTokens:
1756 case frontend::DumpTokens:
1757 case frontend::InitOnly:
1758 case frontend::PrintPreamble:
1759 case frontend::PrintPreprocessedInput:
1760 case frontend::RewriteMacros:
1761 case frontend::RunPreprocessorOnly:
1762 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1763 break;
1764 }
1765
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001766 Opts.ShowComments = Args.hasArg(OPT_C);
Daniel Dunbarf7c16d92010-08-24 22:44:13 +00001767 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001768 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
Daniel Dunbarf7c16d92010-08-24 22:44:13 +00001769 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
David Blaikief1492f92012-06-14 17:36:09 +00001770 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001771}
1772
Weiming Zhao360355d2013-03-06 02:08:54 +00001773static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +00001774 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001775 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1776 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
Rafael Espindola5389b842013-08-21 21:59:03 +00001777 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
Douglas Gregor57016dd2012-10-16 23:40:58 +00001778 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
Daniel Dunbar39065a52010-08-11 23:07:42 +00001779 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
Duncan Sands2dc14532010-08-30 09:42:39 +00001780 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001781
Sebastian Pop5d8b9542011-11-01 21:33:06 +00001782 // Use the default target triple if unspecified.
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001783 if (Opts.Triple.empty())
Sebastian Pop5d8b9542011-11-01 21:33:06 +00001784 Opts.Triple = llvm::sys::getDefaultTargetTriple();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001785}
1786
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001787bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Chris Lattner39b49bc2010-11-23 08:35:12 +00001788 const char *const *ArgBegin,
1789 const char *const *ArgEnd,
David Blaikied6471f72011-09-25 23:23:43 +00001790 DiagnosticsEngine &Diags) {
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001791 bool Success = true;
1792
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001793 // Parse the arguments.
Stephen Hines651f13c2014-04-23 16:59:28 -07001794 std::unique_ptr<OptTable> Opts(createDriverOptTable());
Hans Wennborg4ed47cc2013-08-02 20:16:22 +00001795 const unsigned IncludedFlagsBitmask = options::CC1Option;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001796 unsigned MissingArgIndex, MissingArgCount;
Stephen Hines651f13c2014-04-23 16:59:28 -07001797 std::unique_ptr<InputArgList> Args(
1798 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount,
1799 IncludedFlagsBitmask));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001800
1801 // Check for missing argument error.
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001802 if (MissingArgCount) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001803 Diags.Report(diag::err_drv_missing_argument)
1804 << Args->getArgString(MissingArgIndex) << MissingArgCount;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001805 Success = false;
1806 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001807
1808 // Issue errors on unknown arguments.
1809 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001810 ie = Args->filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001811 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001812 Success = false;
1813 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001814
Ted Kremenek45796b12012-08-31 04:36:05 +00001815 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +00001816 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001817 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
Chad Rosier2dec85b2012-03-13 20:09:56 +00001818 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001819 && Success;
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +00001820 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args);
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001821 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +00001822 // FIXME: We shouldn't have to pass the DashX option around here
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001823 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
Stephen Hines651f13c2014-04-23 16:59:28 -07001824 ParseTargetArgs(Res.getTargetOpts(), *Args);
1825 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags,
1826 Res.getTargetOpts()) && Success;
Daniel Dunbar1e69fe32009-12-13 03:45:58 +00001827 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001828 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
Ted Kremenekd3b74d92011-11-17 23:01:24 +00001829 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001830 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
Ted Kremenekd3b74d92011-11-17 23:01:24 +00001831 Res.getLangOpts()->ObjCExceptions = 1;
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001832 }
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001833 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1834 // PCH file and find the original header name. Remove the need to do that in
Chris Lattner39b49bc2010-11-23 08:35:12 +00001835 // ParsePreprocessorArgs and remove the FileManager
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001836 // parameters from the function and the "FileManager.h" #include.
Chris Lattner7ad97ff2010-11-23 07:51:02 +00001837 FileManager FileMgr(Res.getFileSystemOpts());
Chris Lattner39b49bc2010-11-23 08:35:12 +00001838 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
Jordan Rose74c24982013-01-30 01:52:57 +00001839 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args,
1840 Res.getFrontendOpts().ProgramAction);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001841 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001842}
Douglas Gregor6e975c42011-09-13 23:15:45 +00001843
1844namespace {
1845
1846 class ModuleSignature {
Dmitri Gribenkocfa88f82013-01-12 19:30:44 +00001847 SmallVector<uint64_t, 16> Data;
Douglas Gregor6e975c42011-09-13 23:15:45 +00001848 unsigned CurBit;
1849 uint64_t CurValue;
1850
1851 public:
1852 ModuleSignature() : CurBit(0), CurValue(0) { }
1853
1854 void add(uint64_t Value, unsigned Bits);
1855 void add(StringRef Value);
1856 void flush();
1857
1858 llvm::APInt getAsInteger() const;
1859 };
1860}
1861
1862void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1863 CurValue |= Value << CurBit;
1864 if (CurBit + NumBits < 64) {
1865 CurBit += NumBits;
1866 return;
1867 }
1868
1869 // Add the current word.
1870 Data.push_back(CurValue);
1871
1872 if (CurBit)
1873 CurValue = Value >> (64-CurBit);
1874 else
1875 CurValue = 0;
1876 CurBit = (CurBit+NumBits) & 63;
1877}
1878
1879void ModuleSignature::flush() {
1880 if (CurBit == 0)
1881 return;
1882
1883 Data.push_back(CurValue);
1884 CurBit = 0;
1885 CurValue = 0;
1886}
1887
1888void ModuleSignature::add(StringRef Value) {
1889 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1890 add(*I, 8);
1891}
1892
1893llvm::APInt ModuleSignature::getAsInteger() const {
1894 return llvm::APInt(Data.size() * 64, Data);
1895}
1896
1897std::string CompilerInvocation::getModuleHash() const {
Douglas Gregorc544ba02013-03-27 16:47:18 +00001898 // Note: For QoI reasons, the things we use as a hash here should all be
1899 // dumped via the -module-info flag.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001900 using llvm::hash_code;
1901 using llvm::hash_value;
1902 using llvm::hash_combine;
1903
Douglas Gregor6e975c42011-09-13 23:15:45 +00001904 // Start the signature with the compiler version.
Douglas Gregor30431752012-11-05 23:30:26 +00001905 // FIXME: We'd rather use something more cryptographically sound than
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001906 // CityHash, but this will do for now.
1907 hash_code code = hash_value(getClangFullRepositoryVersion());
1908
Douglas Gregor6e975c42011-09-13 23:15:45 +00001909 // Extend the signature with the language options
1910#define LANGOPT(Name, Bits, Default, Description) \
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001911 code = hash_combine(code, LangOpts->Name);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001912#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001913 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
Douglas Gregor6e975c42011-09-13 23:15:45 +00001914#define BENIGN_LANGOPT(Name, Bits, Default, Description)
1915#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1916#include "clang/Basic/LangOptions.def"
1917
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001918 // Extend the signature with the target options.
1919 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001920 TargetOpts->ABI);
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001921 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1922 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001923
Douglas Gregor815759c2011-09-14 15:55:12 +00001924 // Extend the signature with preprocessor options.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001925 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
Douglas Gregor2a060852013-02-07 00:21:12 +00001926 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001927 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1928
Douglas Gregor05edf662011-10-17 14:55:37 +00001929 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1930 I = getPreprocessorOpts().Macros.begin(),
1931 IEnd = getPreprocessorOpts().Macros.end();
1932 I != IEnd; ++I) {
Douglas Gregor2a060852013-02-07 00:21:12 +00001933 // If we're supposed to ignore this macro for the purposes of modules,
1934 // don't put it into the hash.
1935 if (!hsOpts.ModulesIgnoreMacros.empty()) {
Douglas Gregor2a060852013-02-07 00:21:12 +00001936 // Check whether we're ignoring this macro.
Douglas Gregor005d51b2013-02-07 01:18:48 +00001937 StringRef MacroDef = I->first;
1938 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
Douglas Gregor2a060852013-02-07 00:21:12 +00001939 continue;
1940 }
1941
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001942 code = hash_combine(code, I->first, I->second);
Douglas Gregor05edf662011-10-17 14:55:37 +00001943 }
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001944
1945 // Extend the signature with the sysroot.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001946 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
1947 hsOpts.UseStandardSystemIncludes,
1948 hsOpts.UseStandardCXXIncludes,
1949 hsOpts.UseLibcxx);
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001950 code = hash_combine(code, hsOpts.ResourceDir);
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001951
Stephen Hines651f13c2014-04-23 16:59:28 -07001952 // Extend the signature with the user build path.
1953 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
1954
Douglas Gregord8f681e2013-05-10 21:54:08 +00001955 // Darwin-specific hack: if we have a sysroot, use the contents and
1956 // modification time of
Douglas Gregor31230e62013-04-12 00:18:53 +00001957 // $sysroot/System/Library/CoreServices/SystemVersion.plist
1958 // as part of the module hash.
1959 if (!hsOpts.Sysroot.empty()) {
Douglas Gregor31230e62013-04-12 00:18:53 +00001960 SmallString<128> systemVersionFile;
1961 systemVersionFile += hsOpts.Sysroot;
1962 llvm::sys::path::append(systemVersionFile, "System");
1963 llvm::sys::path::append(systemVersionFile, "Library");
1964 llvm::sys::path::append(systemVersionFile, "CoreServices");
1965 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001966
1967 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
1968 llvm::MemoryBuffer::getFile(systemVersionFile.str());
1969 if (buffer) {
Douglas Gregor31230e62013-04-12 00:18:53 +00001970 code = hash_combine(code, buffer.get()->getBuffer());
Douglas Gregord8f681e2013-05-10 21:54:08 +00001971
1972 struct stat statBuf;
1973 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
1974 code = hash_combine(code, statBuf.st_mtime);
Douglas Gregor31230e62013-04-12 00:18:53 +00001975 }
1976 }
1977
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001978 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001979}
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001980
1981namespace clang {
1982
Stephen Hines651f13c2014-04-23 16:59:28 -07001983template<typename IntTy>
1984static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
1985 IntTy Default,
1986 DiagnosticsEngine *Diags) {
1987 IntTy Res = Default;
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001988 if (Arg *A = Args.getLastArg(Id)) {
1989 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
1990 if (Diags)
1991 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
1992 << A->getValue();
1993 }
1994 }
1995 return Res;
1996}
Stephen Hines651f13c2014-04-23 16:59:28 -07001997
1998
1999// Declared in clang/Frontend/Utils.h.
2000int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2001 DiagnosticsEngine *Diags) {
2002 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2003}
2004
2005uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2006 uint64_t Default,
2007 DiagnosticsEngine *Diags) {
2008 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2009}
2010
2011void BuryPointer(const void *Ptr) {
2012 // This function may be called only a small fixed amount of times per each
2013 // invocation, otherwise we do actually have a leak which we want to report.
2014 // If this function is called more than kGraveYardMaxSize times, the pointers
2015 // will not be properly buried and a leak detector will report a leak, which
2016 // is what we want in such case.
2017 static const size_t kGraveYardMaxSize = 16;
2018 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2019 static std::atomic<unsigned> GraveYardSize;
2020 unsigned Idx = GraveYardSize++;
2021 if (Idx >= kGraveYardMaxSize)
2022 return;
2023 GraveYard[Idx] = Ptr;
2024}
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002025
2026IntrusiveRefCntPtr<vfs::FileSystem>
2027createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2028 DiagnosticsEngine &Diags) {
2029 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2030 return vfs::getRealFileSystem();
2031
2032 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2033 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2034 // earlier vfs files are on the bottom
2035 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
Stephen Hinesc568f1e2014-07-21 00:47:37 -07002036 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2037 llvm::MemoryBuffer::getFile(File);
2038 if (!Buffer) {
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002039 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2040 return IntrusiveRefCntPtr<vfs::FileSystem>();
2041 }
2042
2043 IntrusiveRefCntPtr<vfs::FileSystem> FS =
Stephen Hinesc568f1e2014-07-21 00:47:37 -07002044 vfs::getVFSFromYAML(Buffer->release(), /*DiagHandler*/ nullptr);
2045 if (!FS.get()) {
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002046 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2047 return IntrusiveRefCntPtr<vfs::FileSystem>();
2048 }
2049 Overlay->pushOverlay(FS);
2050 }
2051 return Overlay;
Reid Klecknerb1e25a12013-06-14 17:17:23 +00002052}
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002053} // end namespace clang