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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
Stephen Hines176edba2014-12-01 14:53:08 -0800114static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
115 OptSpecifier GroupWithValue,
116 std::vector<std::string> &Diagnostics) {
117 for (Arg *A : Args.filtered(Group)) {
James Molloybfd7a522012-05-01 14:57:16 +0000118 if (A->getOption().getKind() == Option::FlagClass) {
Stephen Hines176edba2014-12-01 14:53:08 -0800119 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
120 // its name (minus the "W" or "R" at the beginning) to the warning list.
121 Diagnostics.push_back(A->getOption().getName().drop_front(1));
122 } else if (A->getOption().matches(GroupWithValue)) {
123 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
124 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
James Molloybfd7a522012-05-01 14:57:16 +0000125 } else {
Stephen Hines176edba2014-12-01 14:53:08 -0800126 // Otherwise, add its value (for OPT_W_Joined and similar).
127 for (const char *Arg : A->getValues())
128 Diagnostics.push_back(Arg);
James Molloybfd7a522012-05-01 14:57:16 +0000129 }
130 }
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +0000131}
132
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000133static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
David Blaikied6471f72011-09-25 23:23:43 +0000134 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000135 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000136 bool Success = true;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000137 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000138 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000139 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
140#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
141 .Case(CMDFLAG, NAME##Model)
Ted Kremenek987695a2012-08-31 04:35:58 +0000142#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000143 .Default(NumStores);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000144 if (Value == NumStores) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000145 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000146 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000147 Success = false;
148 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000149 Opts.AnalysisStoreOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000150 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000151 }
152
153 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000154 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000155 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
156#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
157 .Case(CMDFLAG, NAME##Model)
Ted Kremenek987695a2012-08-31 04:35:58 +0000158#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000159 .Default(NumConstraints);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000160 if (Value == NumConstraints) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000161 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000162 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000163 Success = false;
164 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000165 Opts.AnalysisConstraintsOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000166 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000167 }
168
169 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000170 StringRef Name = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000171 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
Jordan Rose5fba5a72013-08-16 01:06:30 +0000172#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000173 .Case(CMDFLAG, PD_##NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000174#include "clang/StaticAnalyzer/Core/Analyses.def"
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000175 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000176 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000177 Diags.Report(diag::err_drv_invalid_value)
Daniel Dunbarbfbb39d2010-06-09 22:30:54 +0000178 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000179 Success = false;
180 } else {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000181 Opts.AnalysisDiagOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000182 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000183 }
184
Anna Zaksd3095282011-09-30 02:03:00 +0000185 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000186 StringRef Name = A->getValue();
Anna Zaksd3095282011-09-30 02:03:00 +0000187 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
188#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
189 .Case(CMDFLAG, NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000190#include "clang/StaticAnalyzer/Core/Analyses.def"
Anna Zaksd3095282011-09-30 02:03:00 +0000191 .Default(NumPurgeModes);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000192 if (Value == NumPurgeModes) {
Anna Zaksd3095282011-09-30 02:03:00 +0000193 Diags.Report(diag::err_drv_invalid_value)
194 << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000195 Success = false;
196 } else {
Anna Zaksd3095282011-09-30 02:03:00 +0000197 Opts.AnalysisPurgeOpt = Value;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000198 }
Anna Zaksd3095282011-09-30 02:03:00 +0000199 }
200
Anna Zaks66253352012-03-08 23:16:35 +0000201 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000202 StringRef Name = A->getValue();
Anna Zaks66253352012-03-08 23:16:35 +0000203 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
204#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
205 .Case(CMDFLAG, NAME)
Ted Kremenek987695a2012-08-31 04:35:58 +0000206#include "clang/StaticAnalyzer/Core/Analyses.def"
Anna Zaks66253352012-03-08 23:16:35 +0000207 .Default(NumInliningModes);
208 if (Value == NumInliningModes) {
209 Diags.Report(diag::err_drv_invalid_value)
210 << A->getAsString(Args) << Name;
211 Success = false;
212 } else {
213 Opts.InliningMode = Value;
214 }
215 }
216
Argyrios Kyrtzidis116f3642011-02-25 00:09:51 +0000217 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
Stephen Hines176edba2014-12-01 14:53:08 -0800218 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
219
Ted Kremenek3b8a0402012-08-30 19:26:53 +0000220 Opts.visualizeExplodedGraphWithGraphViz =
221 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
222 Opts.visualizeExplodedGraphWithUbiGraph =
223 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
Anna Zaksb47dbcb2012-03-28 19:59:16 +0000224 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000225 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
226 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
Ted Kremenekfc576512009-12-07 22:06:12 +0000227 Opts.AnalyzeNestedBlocks =
228 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
Ted Kremenek0caa2d42012-08-30 19:26:48 +0000229 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000230 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
Ted Kremenek9b823e82010-08-03 00:09:51 +0000231 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000232 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000233 Opts.maxBlockVisitOnPath =
234 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
Anna Zaks81fb1692012-02-27 21:33:16 +0000235 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
Anna Zaks8235f9c2012-03-02 19:05:03 +0000236 Opts.InlineMaxStackDepth =
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000237 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
238 Opts.InlineMaxStackDepth, Diags);
Argyrios Kyrtzidis43dee222011-02-14 18:13:31 +0000239
240 Opts.CheckersControlList.clear();
241 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
242 OPT_analyzer_disable_checker),
243 ie = Args.filtered_end(); it != ie; ++it) {
244 const Arg *A = *it;
245 A->claim();
246 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
Argyrios Kyrtzidis38c8fe72011-02-24 08:42:20 +0000247 // We can have a list of comma separated checker names, e.g:
248 // '-analyzer-checker=cocoa,unix'
Richard Smith1d489cf2012-11-01 04:30:05 +0000249 StringRef checkerList = A->getValue();
Chris Lattner5f9e2722011-07-23 10:55:15 +0000250 SmallVector<StringRef, 4> checkers;
Argyrios Kyrtzidis38c8fe72011-02-24 08:42:20 +0000251 checkerList.split(checkers, ",");
252 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
253 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
Argyrios Kyrtzidis43dee222011-02-14 18:13:31 +0000254 }
Ted Kremenek7b73e082012-08-29 05:55:00 +0000255
256 // Go through the analyzer configuration options.
257 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
258 ie = Args.filtered_end(); it != ie; ++it) {
259 const Arg *A = *it;
260 A->claim();
261 // We can have a list of comma separated config names, e.g:
Ted Kremenek318cc3c2012-08-30 05:49:16 +0000262 // '-analyzer-config key1=val1,key2=val2'
Richard Smith1d489cf2012-11-01 04:30:05 +0000263 StringRef configList = A->getValue();
Ted Kremenek7b73e082012-08-29 05:55:00 +0000264 SmallVector<StringRef, 4> configVals;
265 configList.split(configVals, ",");
266 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
267 StringRef key, val;
Stephen Hines651f13c2014-04-23 16:59:28 -0700268 std::tie(key, val) = configVals[i].split("=");
Ted Kremenek7b73e082012-08-29 05:55:00 +0000269 if (val.empty()) {
270 Diags.Report(SourceLocation(),
271 diag::err_analyzer_config_no_value) << configVals[i];
272 Success = false;
273 break;
274 }
Ted Kremenek318cc3c2012-08-30 05:49:16 +0000275 if (val.find('=') != StringRef::npos) {
Ted Kremenek7b73e082012-08-29 05:55:00 +0000276 Diags.Report(SourceLocation(),
277 diag::err_analyzer_config_multiple_values)
278 << configVals[i];
279 Success = false;
280 break;
281 }
282 Opts.Config[key] = val;
283 }
284 }
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000285
286 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000287}
288
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +0000289static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
290 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
Fariborz Jahanianbbdfad52012-01-26 20:57:58 +0000291 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +0000292 return true;
293}
294
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +0000295static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
296 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
Dmitri Gribenko6fd7d302013-04-10 15:35:17 +0000297 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +0000298}
299
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700300static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
301 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
302 StringRef Value = A->getValue();
303 if (Value == "small" || Value == "kernel" || Value == "medium" ||
304 Value == "large")
305 return Value;
306 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
307 }
308 return "default";
309}
310
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700311/// \brief Create a new Regex instance out of the string value in \p RpassArg.
312/// It returns a pointer to the newly generated Regex instance.
313static std::shared_ptr<llvm::Regex>
314GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
315 Arg *RpassArg) {
316 StringRef Val = RpassArg->getValue();
317 std::string RegexError;
318 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
319 if (!Pattern->isValid(RegexError)) {
320 Diags.Report(diag::err_drv_optimization_remark_pattern)
321 << RegexError << RpassArg->getAsString(Args);
322 Pattern.reset();
323 }
324 return Pattern;
325}
326
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000327static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Stephen Hines651f13c2014-04-23 16:59:28 -0700328 DiagnosticsEngine &Diags,
329 const TargetOptions &TargetOpts) {
James Molloybfd7a522012-05-01 14:57:16 +0000330 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000331 bool Success = true;
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +0000332
Sylvestre Ledru762e5672013-11-18 13:23:07 +0000333 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
334 // TODO: This could be done in Driver
335 unsigned MaxOptLevel = 3;
336 if (Opts.OptimizationLevel > MaxOptLevel) {
337 // If the optimization level is not supported, fall back on the default optimization
338 Diags.Report(diag::warn_drv_optimization_value)
339 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
340 Opts.OptimizationLevel = MaxOptLevel;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000341 }
342
343 // We must always run at least the always inlining pass.
Douglas Gregor4cdad312012-10-23 20:05:01 +0000344 Opts.setInlining(
345 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
346 : CodeGenOptions::OnlyAlwaysInlining);
Chad Rosier634a4b12012-03-06 21:17:19 +0000347 // -fno-inline-functions overrides OptimizationLevel > 1.
Chad Rosierfc055f92012-03-15 22:31:42 +0000348 Opts.NoInline = Args.hasArg(OPT_fno_inline);
Douglas Gregor4cdad312012-10-23 20:05:01 +0000349 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
350 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000351
Alexey Samsonovfd00eec2012-05-04 07:39:27 +0000352 if (Args.hasArg(OPT_gline_tables_only)) {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000353 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
Manman Renfc0f91c2013-06-19 01:46:49 +0000354 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
355 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
Stephen Hines651f13c2014-04-23 16:59:28 -0700356 bool Default = false;
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700357 // Until dtrace (via CTF) and LLDB can deal with distributed debug info,
358 // Darwin and FreeBSD default to standalone/full debug info.
359 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() ||
360 llvm::Triple(TargetOpts.Triple).isOSFreeBSD())
Stephen Hines651f13c2014-04-23 16:59:28 -0700361 Default = true;
362
363 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default))
Douglas Gregor4cdad312012-10-23 20:05:01 +0000364 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
Stephen Hines651f13c2014-04-23 16:59:28 -0700365 else
366 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
Alexey Samsonov3a70cd62012-04-27 07:24:20 +0000367 }
Eric Christopherda3301e2012-10-18 21:52:18 +0000368 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
Eric Christopherff971d72013-02-22 23:50:16 +0000369 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
Manman Renfc0f91c2013-06-19 01:46:49 +0000370 if (Args.hasArg(OPT_gdwarf_2))
371 Opts.DwarfVersion = 2;
372 else if (Args.hasArg(OPT_gdwarf_3))
373 Opts.DwarfVersion = 3;
374 else if (Args.hasArg(OPT_gdwarf_4))
375 Opts.DwarfVersion = 4;
376 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
Eric Christopher617f4c52013-09-03 16:10:12 +0000377 // Default Dwarf version is 4 if we are generating debug information.
378 Opts.DwarfVersion = 4;
Alexey Samsonov3a70cd62012-04-27 07:24:20 +0000379
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000380 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
381 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
John McCall32096692011-03-18 02:56:14 +0000382 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
Daniel Dunbare26bdb92011-06-21 18:54:46 +0000383 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
384 OPT_fuse_register_sized_bitfield_access);
Chad Rosierb82e1172013-04-24 18:09:54 +0000385 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
Manman Ren96d6c452013-10-11 20:48:38 +0000386 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000387 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000388 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
389 Opts.NoCommon = Args.hasArg(OPT_fno_common);
390 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
Chad Rosier05422362013-04-10 21:30:03 +0000391 Opts.OptimizeSize = getOptimizationLevelSize(Args);
Daniel Dunbar6b0cf672010-06-07 23:19:17 +0000392 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
393 Args.hasArg(OPT_ffreestanding));
Chandler Carruthb26404a2013-08-08 08:34:35 +0000394 Opts.UnrollLoops =
395 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
396 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
Hal Finkelce5b5f12013-11-17 16:03:29 +0000397 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000398
Stephen Hines651f13c2014-04-23 16:59:28 -0700399 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
Daniel Dunbarf4910132013-04-16 18:21:19 +0000400 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
Diego Novillob85a9ec2013-11-13 12:22:39 +0000401 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
Stephen Hines651f13c2014-04-23 16:59:28 -0700402 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate);
403 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
Stephen Hines176edba2014-12-01 14:53:08 -0800404 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping);
405 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
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);
Stephen Hines176edba2014-12-01 14:53:08 -0800430 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
Eric Christopher31056272013-04-04 06:29:47 +0000431 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
Daniel Dunbar4ecc9b72010-05-27 05:39:39 +0000432 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Daniel Dunbar1ad66482010-07-01 01:31:45 +0000433 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
Daniel Dunbar96932322011-03-28 22:49:28 +0000434 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
Nick Lewyckyea523d72011-10-17 23:05:52 +0000435 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000436 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
Chandler Carruth82fe6ae2012-03-27 23:58:37 +0000437 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
Chandler Carruthabf07a72012-01-02 14:19:45 +0000438 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
439 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Peter Collingbournef0840822010-12-04 01:51:23 +0000440 Args.hasArg(OPT_cl_fast_relaxed_math);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000441 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000442 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
Stephen Hines176edba2014-12-01 14:53:08 -0800443 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
444 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
445 Diags.Report(diag::err_drv_invalid_value)
446 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
447 << Opts.ThreadModel;
Bob Wilson71fd6cc2012-02-03 06:27:22 +0000448 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
Rafael Espindola8af669f2012-06-19 01:26:10 +0000449 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000450
Nick Lewyckyff059792013-10-11 03:35:10 +0000451 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
452 OPT_fno_function_sections, false);
453 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
454 OPT_fno_data_sections, false);
Stephen Hines176edba2014-12-01 14:53:08 -0800455 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
Chris Lattnerbbea7162010-04-13 00:38:24 +0000456
Nick Lewyckyfdf137b2013-06-25 01:49:44 +0000457 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
458 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
459 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
460
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000461 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
John McCall824e19e2010-02-12 23:47:27 +0000462 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
Will Dietz2d382d12012-12-30 20:53:28 +0000463 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover);
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000464
Nick Lewyckyf2b5e072013-03-20 01:38:16 +0000465 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
Nick Lewyckye8ba8d72011-04-21 23:44:07 +0000466 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
467 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000468 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
Stephen Hines176edba2014-12-01 14:53:08 -0800469 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000470 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
Nick Lewycky83c546a2013-03-20 02:14:38 +0000471 Opts.CoverageNoFunctionNamesInData =
472 Args.hasArg(OPT_coverage_no_function_names_in_data);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000473 if (Args.hasArg(OPT_coverage_version_EQ)) {
474 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
475 if (CoverageVersion.size() != 4) {
476 Diags.Report(diag::err_drv_invalid_value)
477 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
478 << CoverageVersion;
479 } else {
Nick Lewyckyc3ae5832013-03-14 05:14:01 +0000480 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
Nick Lewycky0f815f12013-03-07 08:28:53 +0000481 }
482 }
483 }
484
485 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
486 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
487 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
Stephen Hines651f13c2014-04-23 16:59:28 -0700488 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
Nick Lewycky7c4fd912011-10-21 02:32:14 +0000489 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
Peter Collingbourne22a7dfe2011-10-30 17:30:44 +0000490 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
Stephen Hines176edba2014-12-01 14:53:08 -0800491 Opts.SanitizeCoverage =
492 getLastArgIntValue(Args, OPT_fsanitize_coverage, 0, Diags);
Alexey Samsonov4bdc6042013-01-20 13:12:12 +0000493 Opts.SanitizeMemoryTrackOrigins =
Stephen Hines651f13c2014-04-23 16:59:28 -0700494 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
Chad Rosier78d85b12013-01-29 23:31:22 +0000495 Opts.SanitizeUndefinedTrapOnError =
Stephen Hines651f13c2014-04-23 16:59:28 -0700496 Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
Chad Rosiera7afeb02012-08-21 16:16:06 +0000497 Opts.SSPBufferSize =
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000498 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
Nick Lewycky4e785c92011-12-06 03:33:03 +0000499 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
Joerg Sonnenbergere9d11db2011-12-05 23:05:23 +0000500 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000501 StringRef Val = A->getValue();
Douglas Gregor4cdad312012-10-23 20:05:01 +0000502 unsigned StackAlignment = Opts.StackAlignment;
503 Val.getAsInteger(10, StackAlignment);
504 Opts.StackAlignment = StackAlignment;
Joerg Sonnenbergere9d11db2011-12-05 23:05:23 +0000505 }
Chris Lattner7255a2d2010-06-22 00:03:40 +0000506
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000507 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000508 StringRef Name = A->getValue();
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000509 unsigned Method = llvm::StringSwitch<unsigned>(Name)
510 .Case("legacy", CodeGenOptions::Legacy)
511 .Case("non-legacy", CodeGenOptions::NonLegacy)
512 .Case("mixed", CodeGenOptions::Mixed)
513 .Default(~0U);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000514 if (Method == ~0U) {
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000516 Success = false;
517 } else {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000518 Opts.setObjCDispatchMethod(
519 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000520 }
Daniel Dunbarf643b9b2010-04-24 17:56:46 +0000521 }
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000522
Hans Wennborgde981f32012-06-28 08:01:44 +0000523 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000524 StringRef Name = A->getValue();
Hans Wennborgde981f32012-06-28 08:01:44 +0000525 unsigned Model = llvm::StringSwitch<unsigned>(Name)
526 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
527 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
528 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
529 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
530 .Default(~0U);
531 if (Model == ~0U) {
532 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
533 Success = false;
534 } else {
Douglas Gregor4cdad312012-10-23 20:05:01 +0000535 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
Hans Wennborgde981f32012-06-28 08:01:44 +0000536 }
537 }
538
Lang Hames931c0832012-11-15 07:51:26 +0000539 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
540 StringRef Val = A->getValue();
541 if (Val == "fast")
542 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
543 else if (Val == "on")
544 Opts.setFPContractMode(CodeGenOptions::FPC_On);
545 else if (Val == "off")
546 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
547 else
548 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
549 }
550
John McCallb8b52972013-06-18 02:46:29 +0000551 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
552 if (A->getOption().matches(OPT_fpcc_struct_return)) {
553 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
554 } else {
555 assert(A->getOption().matches(OPT_freg_struct_return));
556 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
557 }
558 }
559
Hans Wennborgb3574792013-08-08 00:17:41 +0000560 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700561 bool NeedLocTracking = false;
Hans Wennborgb3574792013-08-08 00:17:41 +0000562
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700563 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700564 Opts.OptimizationRemarkPattern =
565 GenerateOptimizationRemarkRegex(Diags, Args, A);
566 NeedLocTracking = true;
Stephen Hines6bcf27b2014-05-29 04:14:42 -0700567 }
568
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700569 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
570 Opts.OptimizationRemarkMissedPattern =
571 GenerateOptimizationRemarkRegex(Diags, Args, A);
572 NeedLocTracking = true;
573 }
574
575 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
576 Opts.OptimizationRemarkAnalysisPattern =
577 GenerateOptimizationRemarkRegex(Diags, Args, A);
578 NeedLocTracking = true;
579 }
580
Stephen Hines176edba2014-12-01 14:53:08 -0800581 // If the user requested to use a sample profile for PGO, then the
582 // backend will need to track source location information so the profile
583 // can be incorporated into the IR.
584 if (!Opts.SampleProfileFile.empty())
585 NeedLocTracking = true;
586
587 // If the user requested a flag that requires source locations available in
588 // the backend, make sure that the backend tracks source location information.
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700589 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
590 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
591
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000592 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000593}
594
595static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
596 ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +0000597 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000598 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
599 Opts.Targets = Args.getAllArgValues(OPT_MT);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000600 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
Stephen Hines651f13c2014-04-23 16:59:28 -0700601 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000602 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
Daniel Dunbareef63e02011-02-02 15:41:17 +0000603 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
Daniel Dunbarb34d69b2011-02-02 21:11:31 +0000604 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
Peter Collingbournebb527862011-07-12 19:35:15 +0000605 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
Hans Wennborg708002e2013-08-09 00:32:23 +0000606 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
Douglas Gregor773303a2012-02-02 23:45:13 +0000607 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
Stephen Hinesc568f1e2014-07-21 00:47:37 -0700608 Opts.ModuleDependencyOutputDir =
609 Args.getLastArgValue(OPT_module_dependency_dir);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000610}
611
Chad Rosier2dec85b2012-03-13 20:09:56 +0000612bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
613 DiagnosticsEngine *Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000614 using namespace options;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000615 bool Success = true;
616
Daniel Dunbar08c66952011-04-07 18:11:14 +0000617 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
Stephen Hines176edba2014-12-01 14:53:08 -0800618 if (Arg *A =
619 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
620 Opts.DiagnosticSerializationFile = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000621 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
622 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
623 Opts.Pedantic = Args.hasArg(OPT_pedantic);
624 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
625 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
626 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
Douglas Gregorc9471b02011-05-21 17:07:29 +0000627 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
628 OPT_fno_show_column,
629 /*Default=*/true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000630 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
631 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
632 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000633
Nico Rieck2956ef42013-09-11 00:38:02 +0000634 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
635
Chandler Carruth34b8e682011-03-27 20:00:08 +0000636 // Default behavior is to not to show note include stacks.
637 Opts.ShowNoteIncludeStack = false;
Chandler Carruthabaca7a2011-03-27 01:50:55 +0000638 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
639 OPT_fno_diagnostics_show_note_include_stack))
Chandler Carruth34b8e682011-03-27 20:00:08 +0000640 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
641 Opts.ShowNoteIncludeStack = true;
Chandler Carruthabaca7a2011-03-27 01:50:55 +0000642
Chris Lattner5f9e2722011-07-23 10:55:15 +0000643 StringRef ShowOverloads =
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000644 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
645 if (ShowOverloads == "best")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000646 Opts.setShowOverloads(Ovl_Best);
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000647 else if (ShowOverloads == "all")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000648 Opts.setShowOverloads(Ovl_All);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000649 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000650 Success = false;
651 if (Diags)
652 Diags->Report(diag::err_drv_invalid_value)
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000653 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
654 << ShowOverloads;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000655 }
Jeffrey Yasskin5edbdcc2010-06-11 05:57:47 +0000656
Chris Lattner5f9e2722011-07-23 10:55:15 +0000657 StringRef ShowCategory =
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000658 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
Chris Lattner6fbe8392010-05-04 21:55:25 +0000659 if (ShowCategory == "none")
660 Opts.ShowCategories = 0;
661 else if (ShowCategory == "id")
662 Opts.ShowCategories = 1;
663 else if (ShowCategory == "name")
664 Opts.ShowCategories = 2;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000665 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000666 Success = false;
667 if (Diags)
668 Diags->Report(diag::err_drv_invalid_value)
Chris Lattner6fbe8392010-05-04 21:55:25 +0000669 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
670 << ShowCategory;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000671 }
Michael J. Spencer20249a12010-10-21 03:16:25 +0000672
Chris Lattner5f9e2722011-07-23 10:55:15 +0000673 StringRef Format =
Douglas Gregorc9471b02011-05-21 17:07:29 +0000674 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
675 if (Format == "clang")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000676 Opts.setFormat(DiagnosticOptions::Clang);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000677 else if (Format == "msvc")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000678 Opts.setFormat(DiagnosticOptions::Msvc);
Hans Wennborg89e32742013-09-24 00:08:55 +0000679 else if (Format == "msvc-fallback") {
680 Opts.setFormat(DiagnosticOptions::Msvc);
681 Opts.CLFallbackMode = true;
682 } else if (Format == "vi")
Douglas Gregordc7b6412012-10-23 23:11:23 +0000683 Opts.setFormat(DiagnosticOptions::Vi);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000684 else {
Chad Rosier2dec85b2012-03-13 20:09:56 +0000685 Success = false;
686 if (Diags)
687 Diags->Report(diag::err_drv_invalid_value)
Douglas Gregorc9471b02011-05-21 17:07:29 +0000688 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
689 << Format;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000690 }
Douglas Gregorc9471b02011-05-21 17:07:29 +0000691
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000692 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
Douglas Gregor4786c152010-08-19 20:24:43 +0000693 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
Richard Smith62221b12012-11-14 23:55:25 +0000694 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000695 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
Richard Trieu246b6aa2012-06-26 18:18:47 +0000696 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
697 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000698 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
699 Opts.MacroBacktraceLimit =
700 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
Douglas Gregor6c1cb992010-05-04 17:13:42 +0000701 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000702 Opts.TemplateBacktraceLimit = getLastArgIntValue(
703 Args, OPT_ftemplate_backtrace_limit,
704 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
705 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
706 Args, OPT_fconstexpr_backtrace_limit,
707 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
708 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
Chris Lattner52388f92010-01-13 03:06:50 +0000709 DiagnosticOptions::DefaultTabStop, Diags);
710 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
Chris Lattner52388f92010-01-13 03:06:50 +0000711 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
Chad Rosier2dec85b2012-03-13 20:09:56 +0000712 if (Diags)
713 Diags->Report(diag::warn_ignoring_ftabstop_value)
714 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
Chris Lattner52388f92010-01-13 03:06:50 +0000715 }
Reid Klecknerb1e25a12013-06-14 17:17:23 +0000716 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
Stephen Hines176edba2014-12-01 14:53:08 -0800717 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
718 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +0000719
720 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000721}
722
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +0000723static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
724 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
725}
726
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000727static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
David Blaikied6471f72011-09-25 23:23:43 +0000728 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +0000729 using namespace options;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000730 Opts.ProgramAction = frontend::ParseSyntaxOnly;
731 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
732 switch (A->getOption().getID()) {
733 default:
David Blaikieb219cfc2011-09-23 05:06:16 +0000734 llvm_unreachable("Invalid option in group!");
Alexander Kornienko171af642012-07-31 09:37:40 +0000735 case OPT_ast_list:
736 Opts.ProgramAction = frontend::ASTDeclList; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000737 case OPT_ast_dump:
Stephen Hines176edba2014-12-01 14:53:08 -0800738 case OPT_ast_dump_lookups:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000739 Opts.ProgramAction = frontend::ASTDump; break;
740 case OPT_ast_print:
741 Opts.ProgramAction = frontend::ASTPrint; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000742 case OPT_ast_view:
743 Opts.ProgramAction = frontend::ASTView; break;
744 case OPT_dump_raw_tokens:
745 Opts.ProgramAction = frontend::DumpRawTokens; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000746 case OPT_dump_tokens:
747 Opts.ProgramAction = frontend::DumpTokens; break;
748 case OPT_S:
749 Opts.ProgramAction = frontend::EmitAssembly; break;
750 case OPT_emit_llvm_bc:
751 Opts.ProgramAction = frontend::EmitBC; break;
752 case OPT_emit_html:
753 Opts.ProgramAction = frontend::EmitHTML; break;
754 case OPT_emit_llvm:
755 Opts.ProgramAction = frontend::EmitLLVM; break;
756 case OPT_emit_llvm_only:
757 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
Daniel Dunbar32148ce2010-05-25 18:41:01 +0000758 case OPT_emit_codegen_only:
759 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
Daniel Dunbarda1573f2010-02-03 01:18:43 +0000760 case OPT_emit_obj:
761 Opts.ProgramAction = frontend::EmitObj; break;
Nick Lewyckyba5f6ec2010-04-24 01:30:46 +0000762 case OPT_fixit_EQ:
Richard Smith1d489cf2012-11-01 04:30:05 +0000763 Opts.FixItSuffix = A->getValue();
Nick Lewyckyba5f6ec2010-04-24 01:30:46 +0000764 // fall-through!
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000765 case OPT_fixit:
766 Opts.ProgramAction = frontend::FixIt; break;
Douglas Gregor467dc882011-08-25 22:30:56 +0000767 case OPT_emit_module:
768 Opts.ProgramAction = frontend::GenerateModule; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000769 case OPT_emit_pch:
770 Opts.ProgramAction = frontend::GeneratePCH; break;
771 case OPT_emit_pth:
772 Opts.ProgramAction = frontend::GeneratePTH; break;
Daniel Dunbar27585952010-03-19 19:44:04 +0000773 case OPT_init_only:
774 Opts.ProgramAction = frontend::InitOnly; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000775 case OPT_fsyntax_only:
776 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
Douglas Gregorc544ba02013-03-27 16:47:18 +0000777 case OPT_module_file_info:
778 Opts.ProgramAction = frontend::ModuleFileInfo; break;
Stephen Hines651f13c2014-04-23 16:59:28 -0700779 case OPT_verify_pch:
780 Opts.ProgramAction = frontend::VerifyPCH; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000781 case OPT_print_decl_contexts:
782 Opts.ProgramAction = frontend::PrintDeclContext; break;
Douglas Gregorf033f1d2010-07-20 20:18:03 +0000783 case OPT_print_preamble:
784 Opts.ProgramAction = frontend::PrintPreamble; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000785 case OPT_E:
786 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000787 case OPT_rewrite_macros:
788 Opts.ProgramAction = frontend::RewriteMacros; break;
789 case OPT_rewrite_objc:
790 Opts.ProgramAction = frontend::RewriteObjC; break;
791 case OPT_rewrite_test:
792 Opts.ProgramAction = frontend::RewriteTest; break;
793 case OPT_analyze:
794 Opts.ProgramAction = frontend::RunAnalysis; break;
Ted Kremenek30660a82012-03-06 20:06:33 +0000795 case OPT_migrate:
796 Opts.ProgramAction = frontend::MigrateSource; break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000797 case OPT_Eonly:
798 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
799 }
800 }
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000801
802 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000803 Opts.Plugins.push_back(A->getValue(0));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000804 Opts.ProgramAction = frontend::PluginAction;
Richard Smith1d489cf2012-11-01 04:30:05 +0000805 Opts.ActionName = A->getValue();
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000806
807 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
808 end = Args.filtered_end(); it != end; ++it) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000809 if ((*it)->getValue(0) == Opts.ActionName)
810 Opts.PluginArgs.push_back((*it)->getValue(1));
Daniel Dunbar3177aae2010-06-16 16:59:23 +0000811 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000812 }
813
Nico Weber5aa74af2011-01-25 20:34:14 +0000814 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
Nico Weberf25649c2011-01-29 21:21:49 +0000815 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
816 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
817 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
818 end = Args.filtered_end(); it != end; ++it) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000819 if ((*it)->getValue(0) == Opts.AddPluginActions[i])
820 Opts.AddPluginArgs[i].push_back((*it)->getValue(1));
Nico Weberf25649c2011-01-29 21:21:49 +0000821 }
822 }
Nico Weber5aa74af2011-01-25 20:34:14 +0000823
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000824 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
825 Opts.CodeCompletionAt =
Richard Smith1d489cf2012-11-01 04:30:05 +0000826 ParsedSourceLocation::FromString(A->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000827 if (Opts.CodeCompletionAt.FileName.empty())
828 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +0000829 << A->getAsString(Args) << A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000830 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000831 Opts.DisableFree = Args.hasArg(OPT_disable_free);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000832
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000833 Opts.OutputFile = Args.getLastArgValue(OPT_o);
834 Opts.Plugins = Args.getAllArgValues(OPT_load);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000835 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
Daniel Dunbar9b5e9ae2009-12-03 07:01:58 +0000836 Opts.ShowHelp = Args.hasArg(OPT_help);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000837 Opts.ShowStats = Args.hasArg(OPT_print_stats);
838 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
Daniel Dunbar9b5e9ae2009-12-03 07:01:58 +0000839 Opts.ShowVersion = Args.hasArg(OPT_version);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000840 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
841 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
Nick Lewycky1450f262010-08-13 17:31:00 +0000842 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
Argyrios Kyrtzidis61d679a2012-01-26 02:40:48 +0000843 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
844 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
845 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
Stephen Hines176edba2014-12-01 14:53:08 -0800846 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
Alexander Kornienkoe34a0522012-07-26 16:01:23 +0000847 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
Richard Smithab297cc2013-06-24 01:45:33 +0000848 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
Douglas Gregor20c6f2e2013-01-28 18:38:02 +0000849 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
Douglas Gregorf575d6e2013-01-25 00:45:27 +0000850 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
Stephen Hines176edba2014-12-01 14:53:08 -0800851 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
852
Dmitri Gribenkod99ef532012-07-02 17:35:10 +0000853 Opts.CodeCompleteOpts.IncludeMacros
854 = Args.hasArg(OPT_code_completion_macros);
855 Opts.CodeCompleteOpts.IncludeCodePatterns
856 = Args.hasArg(OPT_code_completion_patterns);
857 Opts.CodeCompleteOpts.IncludeGlobals
858 = !Args.hasArg(OPT_no_code_completion_globals);
859 Opts.CodeCompleteOpts.IncludeBriefComments
860 = Args.hasArg(OPT_code_completion_brief_comments);
861
Douglas Gregor453dbcb2012-01-26 07:55:45 +0000862 Opts.OverrideRecordLayoutsFile
863 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
John McCall8f0e8d22011-06-15 23:25:17 +0000864 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
Argyrios Kyrtzidis69325d52011-07-09 20:00:58 +0000865 OPT_arcmt_modify,
866 OPT_arcmt_migrate)) {
John McCall8f0e8d22011-06-15 23:25:17 +0000867 switch (A->getOption().getID()) {
868 default:
869 llvm_unreachable("missed a case");
870 case OPT_arcmt_check:
871 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
872 break;
873 case OPT_arcmt_modify:
874 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
875 break;
Argyrios Kyrtzidis69325d52011-07-09 20:00:58 +0000876 case OPT_arcmt_migrate:
877 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
878 break;
John McCall8f0e8d22011-06-15 23:25:17 +0000879 }
880 }
Ted Kremenek30660a82012-03-06 20:06:33 +0000881 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
Argyrios Kyrtzidis7ee20492011-07-19 17:20:03 +0000882 Opts.ARCMTMigrateReportOut
883 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
884 Opts.ARCMTMigrateEmitARCErrors
885 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
John McCall8f0e8d22011-06-15 23:25:17 +0000886
Ted Kremenek30660a82012-03-06 20:06:33 +0000887 if (Args.hasArg(OPT_objcmt_migrate_literals))
888 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
889 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
890 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
Stephen Hines176edba2014-12-01 14:53:08 -0800891 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
892 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
Fariborz Jahaniand4129992013-07-09 16:59:14 +0000893 if (Args.hasArg(OPT_objcmt_migrate_property))
894 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
Fariborz Jahanian5b98aba2013-08-28 23:22:46 +0000895 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
896 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
Fariborz Jahanian081099d2013-10-02 21:32:39 +0000897 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
898 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
Fariborz Jahaniana00f8732013-10-02 21:58:13 +0000899 if (Args.hasArg(OPT_objcmt_migrate_annotation))
900 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
Fariborz Jahaniancd569f22013-11-05 22:28:30 +0000901 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
902 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
Fariborz Jahaniana00f8732013-10-02 21:58:13 +0000903 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
904 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
905 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
906 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
907 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
908 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
Fariborz Jahanian39ebb022013-10-09 19:06:08 +0000909 if (Args.hasArg(OPT_objcmt_atomic_property))
910 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
Fariborz Jahanian5d2a2062013-11-13 00:08:36 +0000911 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
912 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
Stephen Hines651f13c2014-04-23 16:59:28 -0700913 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
914 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
Fariborz Jahanian081099d2013-10-02 21:32:39 +0000915 if (Args.hasArg(OPT_objcmt_migrate_all))
916 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
Ted Kremenek30660a82012-03-06 20:06:33 +0000917
Stephen Hines651f13c2014-04-23 16:59:28 -0700918 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
Argyrios Kyrtzidis2c050f62013-11-14 16:33:29 +0000919
Ted Kremenek30660a82012-03-06 20:06:33 +0000920 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
921 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
922 Diags.Report(diag::err_drv_argument_not_allowed_with)
923 << "ARC migration" << "ObjC migration";
924 }
925
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000926 InputKind DashX = IK_None;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000927 if (const Arg *A = Args.getLastArg(OPT_x)) {
Richard Smith1d489cf2012-11-01 04:30:05 +0000928 DashX = llvm::StringSwitch<InputKind>(A->getValue())
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000929 .Case("c", IK_C)
930 .Case("cl", IK_OpenCL)
Peter Collingbourne895fcca2010-12-01 03:15:20 +0000931 .Case("cuda", IK_CUDA)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000932 .Case("c++", IK_CXX)
933 .Case("objective-c", IK_ObjC)
934 .Case("objective-c++", IK_ObjCXX)
935 .Case("cpp-output", IK_PreprocessedC)
936 .Case("assembler-with-cpp", IK_Asm)
937 .Case("c++-cpp-output", IK_PreprocessedCXX)
938 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
Chris Lattner919f2ca2011-04-09 07:09:31 +0000939 .Case("objc-cpp-output", IK_PreprocessedObjC)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000940 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
Nico Weber1f7957d2011-08-13 19:03:50 +0000941 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000942 .Case("c-header", IK_C)
Peter Collingbourneae57ead2011-10-09 22:03:19 +0000943 .Case("cl-header", IK_OpenCL)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000944 .Case("objective-c-header", IK_ObjC)
945 .Case("c++-header", IK_CXX)
946 .Case("objective-c++-header", IK_ObjCXX)
Douglas Gregorc544ba02013-03-27 16:47:18 +0000947 .Cases("ast", "pcm", IK_AST)
Daniel Dunbarfaddc3e2010-06-07 23:26:47 +0000948 .Case("ir", IK_LLVM_IR)
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000949 .Default(IK_None);
950 if (DashX == IK_None)
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000951 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +0000952 << A->getAsString(Args) << A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000953 }
954
955 // '-' is the default input if none is given.
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000956 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000957 Opts.Inputs.clear();
958 if (Inputs.empty())
959 Inputs.push_back("-");
960 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +0000961 InputKind IK = DashX;
962 if (IK == IK_None) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000963 IK = FrontendOptions::getInputKindForExtension(
Chris Lattner5f9e2722011-07-23 10:55:15 +0000964 StringRef(Inputs[i]).rsplit('.').second);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000965 // FIXME: Remove this hack.
966 if (i == 0)
967 DashX = IK;
968 }
Douglas Gregor1f6b2b52012-01-20 16:28:04 +0000969 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000970 }
971
972 return DashX;
973}
974
Daniel Dunbar8b9adfe2009-12-15 00:06:45 +0000975std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
976 void *MainAddr) {
Rafael Espindola3473c8d2013-06-26 05:40:30 +0000977 SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000978
Rafael Espindola3473c8d2013-06-26 05:40:30 +0000979 if (!P.empty()) {
980 llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
981 llvm::sys::path::remove_filename(P); // Remove /bin from foo/bin
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000982
983 // Get foo/lib/clang/<version>/include
Benjamin Kramerceb6dc82013-06-28 16:25:46 +0000984 llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000985 }
986
987 return P.str();
988}
989
Daniel Dunbar1e69fe32009-12-13 03:45:58 +0000990static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +0000991 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000992 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
Daniel Dunbar56ac85c2009-12-01 03:16:53 +0000993 Opts.Verbose = Args.hasArg(OPT_v);
Francois Pichetc91562c2011-10-10 20:34:10 +0000994 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
Daniel Dunbara268fc02011-10-11 18:20:10 +0000995 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
Douglas Gregor4c2bcad2010-03-24 20:13:48 +0000996 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
Bob Wilson13c4f212011-06-21 21:12:29 +0000997 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
Richard Smith1d489cf2012-11-01 04:30:05 +0000998 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +0000999 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
Douglas Gregor953a61f2013-02-07 19:01:24 +00001000 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
Stephen Hines651f13c2014-04-23 16:59:28 -07001001 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001002 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
Daniel Jasper056ec122013-08-05 20:26:17 +00001003 // -fmodules implies -fmodule-maps
1004 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001005 Opts.ModuleCachePruneInterval =
1006 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1007 Opts.ModuleCachePruneAfter =
1008 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
Stephen Hines651f13c2014-04-23 16:59:28 -07001009 Opts.ModulesValidateOncePerBuildSession =
1010 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1011 Opts.BuildSessionTimestamp =
1012 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1013 Opts.ModulesValidateSystemHeaders =
1014 Args.hasArg(OPT_fmodules_validate_system_headers);
1015
Douglas Gregor2a060852013-02-07 00:21:12 +00001016 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro),
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001017 ie = Args.filtered_end();
1018 it != ie; ++it) {
Douglas Gregor005d51b2013-02-07 01:18:48 +00001019 StringRef MacroDef = (*it)->getValue();
1020 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
Douglas Gregor2a060852013-02-07 00:21:12 +00001021 }
Daniel Jasper1b8840c2013-09-24 09:27:13 +00001022 std::vector<std::string> ModuleMapFiles =
1023 Args.getAllArgValues(OPT_fmodule_map_file);
1024 Opts.ModuleMapFiles.insert(ModuleMapFiles.begin(), ModuleMapFiles.end());
Douglas Gregor2a060852013-02-07 00:21:12 +00001025
Douglas Gregor65e02fa2011-07-28 04:45:53 +00001026 // Add -I..., -F..., and -index-header-map options in order.
1027 bool IsIndexHeaderMap = false;
1028 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
1029 OPT_index_header_map),
1030 ie = Args.filtered_end(); it != ie; ++it) {
1031 if ((*it)->getOption().matches(OPT_index_header_map)) {
1032 // -index-header-map applies to the next -I or -F.
1033 IsIndexHeaderMap = true;
1034 continue;
1035 }
1036
1037 frontend::IncludeDirGroup Group
1038 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
1039
Daniel Dunbareab66522013-01-25 01:50:47 +00001040 Opts.AddPath((*it)->getValue(), Group,
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001041 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true);
Douglas Gregor65e02fa2011-07-28 04:45:53 +00001042 IsIndexHeaderMap = false;
1043 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001044
Daniel Dunbarf3fc21f2013-01-25 01:50:34 +00001045 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
Chris Lattner5f9e2722011-07-23 10:55:15 +00001046 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001047 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1048 OPT_iwithprefixbefore),
1049 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001050 const Arg *A = *it;
1051 if (A->getOption().matches(OPT_iprefix))
Richard Smith1d489cf2012-11-01 04:30:05 +00001052 Prefix = A->getValue();
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001053 else if (A->getOption().matches(OPT_iwithprefix))
Richard Smith1d489cf2012-11-01 04:30:05 +00001054 Opts.AddPath(Prefix.str() + A->getValue(),
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001055 frontend::After, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001056 else
Richard Smith1d489cf2012-11-01 04:30:05 +00001057 Opts.AddPath(Prefix.str() + A->getValue(),
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001058 frontend::Angled, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001059 }
1060
1061 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1062 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001063 Opts.AddPath((*it)->getValue(), frontend::After, false, true);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001064 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1065 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbarc33c9f72013-01-29 23:59:45 +00001066 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001067 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
Joerg Sonnenberger2df66472011-02-22 00:40:56 +00001068 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001069 Opts.AddPath((*it)->getValue(), frontend::System, false,
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001070 !(*it)->getOption().matches(OPT_iwithsysroot));
Daniel Dunbar024f4be2011-10-18 20:40:38 +00001071 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
1072 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001073 Opts.AddPath((*it)->getValue(), frontend::System, true, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001074
1075 // Add the paths for the various language specific isystem flags.
1076 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
1077 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001078 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001079 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
1080 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001081 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001082 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
1083 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001084 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true);
Benjamin Kramer47adebe2011-09-22 21:41:16 +00001085 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
1086 ie = Args.filtered_end(); it != ie; ++it)
Daniel Dunbareab66522013-01-25 01:50:47 +00001087 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true);
Chandler Carruthac2bc4d2011-11-05 08:30:29 +00001088
1089 // Add the internal paths from a driver that detects standard include paths.
1090 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
Chandler Carruth07643082011-11-07 09:17:31 +00001091 OPT_internal_externc_isystem),
Chandler Carruthac2bc4d2011-11-05 08:30:29 +00001092 E = Args.filtered_end();
Daniel Dunbaref845542013-01-30 00:19:24 +00001093 I != E; ++I) {
1094 frontend::IncludeDirGroup Group = frontend::System;
1095 if ((*I)->getOption().matches(OPT_internal_externc_isystem))
1096 Group = frontend::ExternCSystem;
Daniel Dunbar59fd6352013-01-30 00:34:26 +00001097 Opts.AddPath((*I)->getValue(), Group, false, true);
Daniel Dunbaref845542013-01-30 00:19:24 +00001098 }
Richard Smithf122a132012-06-13 20:27:03 +00001099
1100 // Add the path prefixes which are implicitly treated as being system headers.
Stephen Hines651f13c2014-04-23 16:59:28 -07001101 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix,
1102 OPT_no_system_header_prefix),
Richard Smithf122a132012-06-13 20:27:03 +00001103 E = Args.filtered_end();
1104 I != E; ++I)
Stephen Hines651f13c2014-04-23 16:59:28 -07001105 Opts.AddSystemHeaderPrefix(
1106 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix));
1107
1108 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay),
1109 E = Args.filtered_end(); I != E; ++I)
1110 Opts.AddVFSOverlayFile((*I)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001111}
1112
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001113void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1114 LangStandard::Kind LangStd) {
Chris Lattnerfc8f0e12011-04-15 05:22:18 +00001115 // Set some properties which depend solely on the input kind; it would be nice
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001116 // to move these to the language standard, and have the driver resolve the
1117 // input kind + language standard.
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001118 if (IK == IK_Asm) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001119 Opts.AsmPreprocessor = 1;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001120 } else if (IK == IK_ObjC ||
1121 IK == IK_ObjCXX ||
1122 IK == IK_PreprocessedObjC ||
1123 IK == IK_PreprocessedObjCXX) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001124 Opts.ObjC1 = Opts.ObjC2 = 1;
1125 }
1126
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001127 if (LangStd == LangStandard::lang_unspecified) {
1128 // Based on the base language, pick one.
1129 switch (IK) {
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001130 case IK_None:
1131 case IK_AST:
Daniel Dunbarfaddc3e2010-06-07 23:26:47 +00001132 case IK_LLVM_IR:
David Blaikieb219cfc2011-09-23 05:06:16 +00001133 llvm_unreachable("Invalid input kind!");
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001134 case IK_OpenCL:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001135 LangStd = LangStandard::lang_opencl;
1136 break;
Peter Collingbourne895fcca2010-12-01 03:15:20 +00001137 case IK_CUDA:
1138 LangStd = LangStandard::lang_cuda;
1139 break;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001140 case IK_Asm:
1141 case IK_C:
1142 case IK_PreprocessedC:
1143 case IK_ObjC:
1144 case IK_PreprocessedObjC:
Stephen Hines176edba2014-12-01 14:53:08 -08001145 LangStd = LangStandard::lang_gnu11;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001146 break;
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001147 case IK_CXX:
1148 case IK_PreprocessedCXX:
1149 case IK_ObjCXX:
1150 case IK_PreprocessedObjCXX:
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001151 LangStd = LangStandard::lang_gnucxx98;
1152 break;
1153 }
1154 }
1155
1156 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
Nico Weberbb236282012-11-11 07:02:14 +00001157 Opts.LineComment = Std.hasLineComments();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001158 Opts.C99 = Std.isC99();
Benjamin Kramerffbe9b92011-12-23 17:00:35 +00001159 Opts.C11 = Std.isC11();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001160 Opts.CPlusPlus = Std.isCPlusPlus();
Richard Smith80ad52f2013-01-02 11:42:31 +00001161 Opts.CPlusPlus11 = Std.isCPlusPlus11();
Stephen Hines176edba2014-12-01 14:53:08 -08001162 Opts.CPlusPlus14 = Std.isCPlusPlus14();
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001163 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001164 Opts.Digraphs = Std.hasDigraphs();
1165 Opts.GNUMode = Std.isGNUMode();
1166 Opts.GNUInline = !Std.isC99();
1167 Opts.HexFloats = Std.hasHexFloats();
1168 Opts.ImplicitInt = Std.hasImplicitInt();
1169
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001170 // Set OpenCL Version.
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001171 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1172 if (LangStd == LangStandard::lang_opencl)
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001173 Opts.OpenCLVersion = 100;
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001174 else if (LangStd == LangStandard::lang_opencl11)
Stephen Hines176edba2014-12-01 14:53:08 -08001175 Opts.OpenCLVersion = 110;
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001176 else if (LangStd == LangStandard::lang_opencl12)
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001177 Opts.OpenCLVersion = 120;
Stephen Hines176edba2014-12-01 14:53:08 -08001178 else if (LangStd == LangStandard::lang_opencl20)
1179 Opts.OpenCLVersion = 200;
1180
Tanya Lattnerf4205e12012-06-18 22:55:02 +00001181 // OpenCL has some additional defaults.
1182 if (Opts.OpenCL) {
Tobias Grosser37c31c22011-09-21 18:28:29 +00001183 Opts.AltiVec = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001184 Opts.CXXOperatorNames = 1;
Tobias Grosser37c31c22011-09-21 18:28:29 +00001185 Opts.LaxVectorConversions = 0;
Peter Collingbournef315fa82011-02-14 01:42:53 +00001186 Opts.DefaultFPContract = 1;
Joey Gouly19dbb202013-01-23 11:56:20 +00001187 Opts.NativeHalfType = 1;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001188 }
1189
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001190 Opts.CUDA = LangStd == LangStandard::lang_cuda || IK == IK_CUDA;
Peter Collingbourne895fcca2010-12-01 03:15:20 +00001191
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001192 // OpenCL and C++ both have bool, true, false keywords.
1193 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1194
Stephen Hines651f13c2014-04-23 16:59:28 -07001195 // OpenCL has half keyword
1196 Opts.Half = Opts.OpenCL;
1197
Abramo Bagnara5b86ffd2012-09-05 17:30:57 +00001198 // C++ has wchar_t keyword.
1199 Opts.WChar = Opts.CPlusPlus;
1200
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001201 Opts.GNUKeywords = Opts.GNUMode;
1202 Opts.CXXOperatorNames = Opts.CPlusPlus;
1203
1204 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1205 // is specified, or -std is set to a conforming mode.
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001206 // Trigraphs are disabled by default in c++1z onwards.
1207 Opts.Trigraphs = !Opts.GNUMode && !Opts.CPlusPlus1z;
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001208
1209 Opts.DollarIdents = !Opts.AsmPreprocessor;
Richard Smith3cebc732013-11-05 09:12:18 +00001210
Stephen Hines176edba2014-12-01 14:53:08 -08001211 // C++14 onwards has sized global deallocation functions.
1212 Opts.SizedDeallocation = Opts.CPlusPlus14;
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001213}
1214
John McCalla880b192013-02-19 01:57:35 +00001215/// Attempt to parse a visibility value out of the given argument.
1216static Visibility parseVisibility(Arg *arg, ArgList &args,
1217 DiagnosticsEngine &diags) {
1218 StringRef value = arg->getValue();
1219 if (value == "default") {
1220 return DefaultVisibility;
1221 } else if (value == "hidden") {
1222 return HiddenVisibility;
1223 } else if (value == "protected") {
1224 // FIXME: diagnose if target does not support protected visibility
1225 return ProtectedVisibility;
1226 }
1227
1228 diags.Report(diag::err_drv_invalid_value)
1229 << arg->getAsString(args) << value;
1230 return DefaultVisibility;
1231}
1232
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001233static unsigned parseMSCVersion(ArgList &Args, DiagnosticsEngine &Diags) {
Stephen Hines176edba2014-12-01 14:53:08 -08001234 auto Arg = Args.getLastArg(OPT_fms_compatibility_version);
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001235 if (!Arg)
1236 return 0;
1237
1238 // The MSC versioning scheme involves four versioning components:
1239 // - Major
1240 // - Minor
1241 // - Build
1242 // - Patch
1243 //
1244 // We accept either the old style (_MSC_VER) value, or a _MSC_FULL_VER value.
1245 // Additionally, the value may be provided in the form of a more readable
1246 // MM.mm.bbbbb.pp version.
1247 //
1248 // Unfortunately, due to the bit-width limitations, we cannot currently encode
1249 // the value for the patch level.
1250
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001251 unsigned VC[4] = {0};
Stephen Hines176edba2014-12-01 14:53:08 -08001252 StringRef Value = Arg->getValue();
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001253 SmallVector<StringRef, 4> Components;
1254
1255 Value.split(Components, ".", llvm::array_lengthof(VC));
1256 for (unsigned CI = 0,
1257 CE = std::min(Components.size(), llvm::array_lengthof(VC));
1258 CI < CE; ++CI) {
1259 if (Components[CI].getAsInteger(10, VC[CI])) {
1260 Diags.Report(diag::err_drv_invalid_value)
1261 << Arg->getAsString(Args) << Value;
1262 return 0;
1263 }
1264 }
1265
1266 // FIXME we cannot encode the patch level
1267 return VC[0] * 10000000 + VC[1] * 100000 + VC[2];
1268}
1269
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001270static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
David Blaikied6471f72011-09-25 23:23:43 +00001271 DiagnosticsEngine &Diags) {
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001272 // FIXME: Cleanup per-file based stuff.
1273 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1274 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001275 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001276#define LANGSTANDARD(id, name, desc, features) \
1277 .Case(name, LangStandard::lang_##id)
1278#include "clang/Frontend/LangStandards.def"
1279 .Default(LangStandard::lang_unspecified);
1280 if (LangStd == LangStandard::lang_unspecified)
1281 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +00001282 << A->getAsString(Args) << A->getValue();
Chad Rosierb2dba4b2011-05-02 19:24:53 +00001283 else {
Stephen Hines651f13c2014-04-23 16:59:28 -07001284 // Valid standard, check to make sure language and standard are
1285 // compatible.
Chad Rosierb2dba4b2011-05-02 19:24:53 +00001286 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1287 switch (IK) {
1288 case IK_C:
1289 case IK_ObjC:
1290 case IK_PreprocessedC:
1291 case IK_PreprocessedObjC:
1292 if (!(Std.isC89() || Std.isC99()))
1293 Diags.Report(diag::err_drv_argument_not_allowed_with)
1294 << A->getAsString(Args) << "C/ObjC";
1295 break;
1296 case IK_CXX:
1297 case IK_ObjCXX:
1298 case IK_PreprocessedCXX:
1299 case IK_PreprocessedObjCXX:
1300 if (!Std.isCPlusPlus())
1301 Diags.Report(diag::err_drv_argument_not_allowed_with)
1302 << A->getAsString(Args) << "C++/ObjC++";
1303 break;
1304 case IK_OpenCL:
1305 if (!Std.isC99())
1306 Diags.Report(diag::err_drv_argument_not_allowed_with)
1307 << A->getAsString(Args) << "OpenCL";
1308 break;
1309 case IK_CUDA:
1310 if (!Std.isCPlusPlus())
1311 Diags.Report(diag::err_drv_argument_not_allowed_with)
1312 << A->getAsString(Args) << "CUDA";
1313 break;
1314 default:
1315 break;
1316 }
1317 }
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001318 }
1319
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001320 // -cl-std only applies for OpenCL language standards.
1321 // Override the -std option in this case.
Peter Collingbourne91252d12010-12-04 01:51:40 +00001322 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001323 LangStandard::Kind OpenCLLangStd
Richard Smith1d489cf2012-11-01 04:30:05 +00001324 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001325 .Case("CL", LangStandard::lang_opencl)
1326 .Case("CL1.1", LangStandard::lang_opencl11)
1327 .Case("CL1.2", LangStandard::lang_opencl12)
Stephen Hines176edba2014-12-01 14:53:08 -08001328 .Case("CL2.0", LangStandard::lang_opencl20)
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001329 .Default(LangStandard::lang_unspecified);
1330
1331 if (OpenCLLangStd == LangStandard::lang_unspecified) {
Peter Collingbourne91252d12010-12-04 01:51:40 +00001332 Diags.Report(diag::err_drv_invalid_value)
Richard Smith1d489cf2012-11-01 04:30:05 +00001333 << A->getAsString(Args) << A->getValue();
Peter Collingbourne91252d12010-12-04 01:51:40 +00001334 }
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001335 else
1336 LangStd = OpenCLLangStd;
Peter Collingbourne91252d12010-12-04 01:51:40 +00001337 }
Tanya Lattner5e94d6f2012-06-19 23:09:52 +00001338
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001339 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1340
Chandler Carrutheb5d7b72010-04-17 20:17:31 +00001341 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1342 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1343 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1344 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1345 // name, as it doesn't seem a useful distinction.
1346 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001347 Opts.GNUKeywords);
Chandler Carrutheb5d7b72010-04-17 20:17:31 +00001348
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001349 if (Args.hasArg(OPT_fno_operator_names))
1350 Opts.CXXOperatorNames = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001351
John McCallf85e1932011-06-15 23:02:42 +00001352 if (Opts.ObjC1) {
John McCall260611a2012-06-20 06:18:46 +00001353 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001354 StringRef value = arg->getValue();
John McCall260611a2012-06-20 06:18:46 +00001355 if (Opts.ObjCRuntime.tryParse(value))
1356 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1357 }
1358
John McCallf85e1932011-06-15 23:02:42 +00001359 if (Args.hasArg(OPT_fobjc_gc_only))
Douglas Gregore289d812011-09-13 17:21:33 +00001360 Opts.setGC(LangOptions::GCOnly);
John McCallf85e1932011-06-15 23:02:42 +00001361 else if (Args.hasArg(OPT_fobjc_gc))
Douglas Gregore289d812011-09-13 17:21:33 +00001362 Opts.setGC(LangOptions::HybridGC);
John McCallf85e1932011-06-15 23:02:42 +00001363 else if (Args.hasArg(OPT_fobjc_arc)) {
1364 Opts.ObjCAutoRefCount = 1;
John McCall0a7dd782012-08-21 02:47:43 +00001365 if (!Opts.ObjCRuntime.allowsARC())
1366 Diags.Report(diag::err_arc_unsupported_on_runtime);
John McCallf85e1932011-06-15 23:02:42 +00001367
John McCall0a7dd782012-08-21 02:47:43 +00001368 // Only set ObjCARCWeak if ARC is enabled.
1369 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1370 Opts.ObjCARCWeak = 1;
1371 else
1372 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1373 }
John McCall9f084a32011-07-06 00:26:06 +00001374
John McCallf85e1932011-06-15 23:02:42 +00001375 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1376 Opts.ObjCInferRelatedResultType = 0;
Fariborz Jahaniand9553e32013-11-01 21:58:17 +00001377
1378 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1379 Opts.ObjCSubscriptingLegacyRuntime =
1380 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
John McCallf85e1932011-06-15 23:02:42 +00001381 }
1382
Rafael Espindolafb3f4aa2011-06-02 16:13:27 +00001383 if (Args.hasArg(OPT_fgnu89_inline))
1384 Opts.GNUInline = 1;
1385
Fariborz Jahanian142f9e92011-02-04 00:01:24 +00001386 if (Args.hasArg(OPT_fapple_kext)) {
1387 if (!Opts.CPlusPlus)
1388 Diags.Report(diag::warn_c_kext);
1389 else
1390 Opts.AppleKext = 1;
1391 }
1392
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001393 if (Args.hasArg(OPT_print_ivar_layout))
1394 Opts.ObjCGCBitmapPrint = 1;
Fariborz Jahanian33e982b2010-04-22 20:26:39 +00001395 if (Args.hasArg(OPT_fno_constant_cfstrings))
1396 Opts.NoConstantCFStrings = 1;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001397
1398 if (Args.hasArg(OPT_faltivec))
1399 Opts.AltiVec = 1;
1400
1401 if (Args.hasArg(OPT_pthread))
1402 Opts.POSIXThreads = 1;
1403
John McCalla880b192013-02-19 01:57:35 +00001404 // The value-visibility mode defaults to "default".
1405 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1406 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1407 } else {
1408 Opts.setValueVisibilityMode(DefaultVisibility);
1409 }
1410
1411 // The type-visibility mode defaults to the value-visibility mode.
1412 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1413 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1414 } else {
1415 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1416 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001417
Douglas Gregor7cf84d62010-06-15 17:05:35 +00001418 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1419 Opts.InlineVisibilityHidden = 1;
Michael J. Spencer20249a12010-10-21 03:16:25 +00001420
David Chisnall7f18e672010-09-17 18:29:54 +00001421 if (Args.hasArg(OPT_ftrapv)) {
Michael J. Spencer20249a12010-10-21 03:16:25 +00001422 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
David Chisnall7f18e672010-09-17 18:29:54 +00001423 // Set the handler, if one is specified.
1424 Opts.OverflowHandler =
1425 Args.getLastArgValue(OPT_ftrapv_handler);
1426 }
Chris Lattnera4d71452010-06-26 21:25:03 +00001427 else if (Args.hasArg(OPT_fwrapv))
Michael J. Spencer20249a12010-10-21 03:16:25 +00001428 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001429
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001430 if (Args.hasArg(OPT_trigraphs))
1431 Opts.Trigraphs = 1;
1432
Daniel Dunbar8663b182009-12-16 20:10:18 +00001433 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1434 OPT_fno_dollars_in_identifiers,
Peter Collingbourne53c92be2010-12-04 01:50:27 +00001435 Opts.DollarIdents);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001436 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
Stephen Hines651f13c2014-04-23 16:59:28 -07001437 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1438 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
Chad Rosier4fb10d12012-12-05 23:35:10 +00001439 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
Stephen Hines176edba2014-12-01 14:53:08 -08001440 Opts.MSCompatibilityVersion = parseMSCVersion(Args, Diags);
Stephen Hines651f13c2014-04-23 16:59:28 -07001441 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
Dawn Perchik400b6072010-09-02 23:59:25 +00001442 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001443 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
Chandler Carruth50465d12011-04-23 06:30:43 +00001444 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1445 Opts.ConstStrings);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001446 if (Args.hasArg(OPT_fno_lax_vector_conversions))
Anders Carlssona508b7d2010-02-06 23:23:06 +00001447 Opts.LaxVectorConversions = 0;
1448 if (Args.hasArg(OPT_fno_threadsafe_statics))
Anders Carlsson824d7ea2010-02-11 08:02:13 +00001449 Opts.ThreadsafeStatics = 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001450 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
Anders Carlssone9b801f2011-02-22 01:52:06 +00001451 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
Anders Carlsson0761e442011-02-23 03:16:42 +00001452 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1453 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
Daniel Dunbar2ed42282011-03-18 21:23:38 +00001454 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
Anders Carlsson0761e442011-02-23 03:16:42 +00001455
Mike Stumpde050572009-12-02 18:57:08 +00001456 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001457 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001458 Opts.Blocks = Args.hasArg(OPT_fblocks);
John McCall13db5cf2011-09-09 20:41:01 +00001459 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
Douglas Gregor752c74d2012-01-03 17:07:34 +00001460 Opts.Modules = Args.hasArg(OPT_fmodules);
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001461 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1462 Opts.ModulesDeclUse =
1463 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1464 Opts.ModulesSearchAll = Opts.Modules &&
1465 !Args.hasArg(OPT_fno_modules_search_all) &&
1466 Args.hasArg(OPT_fmodules_search_all);
1467 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
David Tweed8bc56022013-09-09 09:17:24 +00001468 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
Abramo Bagnara5b86ffd2012-09-05 17:30:57 +00001469 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
Stephen Hines651f13c2014-04-23 16:59:28 -07001470 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
Argyrios Kyrtzidis9a2b9d72010-10-08 00:25:19 +00001471 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001472 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1473 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
Eli Bendersky264d2062013-07-23 00:13:01 +00001474 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
Nuno Lopesfc284482009-12-16 16:59:22 +00001475 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
Richard Smith3cebc732013-11-05 09:12:18 +00001476 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001477 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
John McCall7002f4c2010-04-09 19:03:51 +00001478 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001479 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
David Tweed8bc56022013-09-09 09:17:24 +00001480 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001481 Opts.InstantiationDepth =
1482 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
Richard Smith195dd7c2013-11-06 19:31:51 +00001483 Opts.ArrowDepth =
1484 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001485 Opts.ConstexprCallDepth =
1486 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1487 Opts.ConstexprStepLimit =
1488 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1489 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
Francois Pichet8387e2a2011-04-22 22:18:13 +00001490 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001491 Opts.NumLargeByValueCopy =
1492 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
Douglas Gregor6f755502011-02-01 15:15:22 +00001493 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001494 Opts.ObjCConstantStringClass =
1495 Args.getLastArgValue(OPT_fconstant_string_class);
Ted Kremenekc32647d2010-12-23 21:35:43 +00001496 Opts.ObjCDefaultSynthProperties =
Rafael Espindola14f98892013-09-27 20:21:48 +00001497 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
Fariborz Jahanian3d145f62012-11-15 19:02:45 +00001498 Opts.EncodeExtendedBlockSig =
1499 Args.hasArg(OPT_fencode_extended_block_signature);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001500 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001501 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
Stephen Hines176edba2014-12-01 14:53:08 -08001502 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001503 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1504 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001505 Opts.Static = Args.hasArg(OPT_static_define);
Douglas Gregor453dbcb2012-01-26 07:55:45 +00001506 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1507 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1508 || Args.hasArg(OPT_fdump_record_layouts);
Anders Carlsson046c2942010-04-17 20:15:18 +00001509 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
Douglas Gregora0068fc2010-07-09 17:35:33 +00001510 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
Daniel Dunbarfb937b82010-04-15 15:06:22 +00001511 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
Peter Collingbourne09821362010-12-04 01:50:56 +00001512 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
Peter Collingbournef0840822010-12-04 01:51:23 +00001513 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
Roman Divackycfe9af22011-03-01 17:40:53 +00001514 Opts.MRTD = Args.hasArg(OPT_mrtd);
Tony Linthicum96319392011-12-12 21:14:55 +00001515 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
Peter Collingbourne207f4d82011-03-18 22:38:29 +00001516 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
John McCalla5fc4722011-04-09 22:50:59 +00001517 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
John McCall48218c62011-07-13 17:56:40 +00001518 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
Sean Callanan50a9a122012-02-04 01:29:37 +00001519 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
Ted Kremenek30660a82012-03-06 20:06:33 +00001520 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
Eli Friedman19bda3a2011-11-02 01:53:16 +00001521 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
Douglas Gregorb86b8dc2011-11-15 19:35:01 +00001522 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
Stephen Hines176edba2014-12-01 14:53:08 -08001523 Opts.ImplementationOfModule =
1524 Args.getLastArgValue(OPT_fmodule_implementation_of);
1525 Opts.NativeHalfType = Opts.NativeHalfType;
1526 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1527
1528 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1529 Opts.CurrentModule != Opts.ImplementationOfModule) {
1530 Diags.Report(diag::err_conflicting_module_names)
1531 << Opts.CurrentModule << Opts.ImplementationOfModule;
1532 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001533
David Tweed1eef8522013-09-13 12:04:22 +00001534 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1535 switch (llvm::StringSwitch<unsigned>(A->getValue())
1536 .Case("target", LangOptions::ASMM_Target)
1537 .Case("no", LangOptions::ASMM_Off)
1538 .Case("yes", LangOptions::ASMM_On)
1539 .Default(255)) {
1540 default:
1541 Diags.Report(diag::err_drv_invalid_value)
1542 << "-faddress-space-map-mangling=" << A->getValue();
1543 break;
1544 case LangOptions::ASMM_Target:
1545 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1546 break;
1547 case LangOptions::ASMM_On:
1548 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1549 break;
1550 case LangOptions::ASMM_Off:
1551 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1552 break;
1553 }
1554 }
1555
Stephen Hines651f13c2014-04-23 16:59:28 -07001556 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1557 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1558 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1559 A->getValue())
1560 .Case("single",
1561 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1562 .Case("multiple",
1563 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1564 .Case("virtual",
1565 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1566 .Default(LangOptions::PPTMK_BestCase);
1567 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1568 Diags.Report(diag::err_drv_invalid_value)
1569 << "-fms-memptr-rep=" << A->getValue();
1570
1571 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1572 }
1573
1574 // Check if -fopenmp= is specified.
1575 if (const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ)) {
1576 Opts.OpenMP = llvm::StringSwitch<bool>(A->getValue())
1577 .Case("libiomp5", true)
1578 .Default(false);
1579 }
Douglas Gregor50a70cd2013-01-15 06:45:29 +00001580
Chandler Carruth1cfe3c32011-04-23 09:27:53 +00001581 // Record whether the __DEPRECATED define was requested.
1582 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1583 OPT_fno_deprecated_macro,
1584 Opts.Deprecated);
1585
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001586 // FIXME: Eliminate this dependency.
Dylan Noblesmithf23e8d22012-08-08 16:09:15 +00001587 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
Chad Rosier05422362013-04-10 21:30:03 +00001588 OptSize = getOptimizationLevelSize(Args);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001589 Opts.Optimize = Opt != 0;
Dylan Noblesmithf23e8d22012-08-08 16:09:15 +00001590 Opts.OptimizeSize = OptSize != 0;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001591
1592 // This is the __NO_INLINE__ define, which just depends on things like the
1593 // optimization level and -fno-inline, not actually whether the backend has
1594 // inlining enabled.
Chad Rosierfc055f92012-03-15 22:31:42 +00001595 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001596
Chad Rosierb82e1172013-04-24 18:09:54 +00001597 Opts.FastMath = Args.hasArg(OPT_ffast_math);
Bob Wilson455e72e2012-07-19 03:52:53 +00001598 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only);
Chandler Carruthabf07a72012-01-02 14:19:45 +00001599
Ted Kremenek127ff2e2012-09-13 06:41:18 +00001600 Opts.RetainCommentsFromSystemHeaders =
1601 Args.hasArg(OPT_fretain_comments_from_system_headers);
1602
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001603 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001604 switch (SSP) {
1605 default:
1606 Diags.Report(diag::err_drv_invalid_value)
1607 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1608 break;
Douglas Gregore289d812011-09-13 17:21:33 +00001609 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1610 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
Stephen Hines651f13c2014-04-23 16:59:28 -07001611 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1612 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001613 }
Richard Smithc4dabad2012-11-05 22:04:41 +00001614
1615 // Parse -fsanitize= arguments.
1616 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ);
Stephen Hines176edba2014-12-01 14:53:08 -08001617 for (const auto &Sanitizer : Sanitizers) {
1618 SanitizerKind K = llvm::StringSwitch<SanitizerKind>(Sanitizer)
1619#define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID)
Richard Smithc4dabad2012-11-05 22:04:41 +00001620#include "clang/Basic/Sanitizers.def"
Stephen Hines176edba2014-12-01 14:53:08 -08001621 .Default(SanitizerKind::Unknown);
1622 if (K == SanitizerKind::Unknown)
Richard Smithc4dabad2012-11-05 22:04:41 +00001623 Diags.Report(diag::err_drv_invalid_value)
Stephen Hines176edba2014-12-01 14:53:08 -08001624 << "-fsanitize=" << Sanitizer;
1625 else
1626 Opts.Sanitize.set(K, true);
Richard Smithc4dabad2012-11-05 22:04:41 +00001627 }
Stephen Hines176edba2014-12-01 14:53:08 -08001628 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1629 Opts.SanitizeAddressFieldPadding =
1630 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1631 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001632}
1633
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001634static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001635 FileManager &FileMgr,
David Blaikied6471f72011-09-25 23:23:43 +00001636 DiagnosticsEngine &Diags) {
James Molloybfd7a522012-05-01 14:57:16 +00001637 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001638 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1639 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001640 if (const Arg *A = Args.getLastArg(OPT_token_cache))
Richard Smith1d489cf2012-11-01 04:30:05 +00001641 Opts.TokenCache = A->getValue();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001642 else
1643 Opts.TokenCache = Opts.ImplicitPTHInclude;
1644 Opts.UsePredefines = !Args.hasArg(OPT_undef);
Douglas Gregor94dc8f62010-03-19 16:15:56 +00001645 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001646 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001647
Argyrios Kyrtzidisb9728582010-10-14 20:14:18 +00001648 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001649 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
1650 ie = Args.filtered_end(); it != ie; ++it) {
1651 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001652 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
Argyrios Kyrtzidis3e785932010-10-14 20:14:25 +00001653 }
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001654
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001655 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001656 StringRef Value(A->getValue());
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001657 size_t Comma = Value.find(',');
1658 unsigned Bytes = 0;
1659 unsigned EndOfLine = 0;
Michael J. Spencer20249a12010-10-21 03:16:25 +00001660
Chris Lattner5f9e2722011-07-23 10:55:15 +00001661 if (Comma == StringRef::npos ||
Douglas Gregorf4f6c9d2010-07-26 21:36:20 +00001662 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1663 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1664 Diags.Report(diag::err_drv_preamble_format);
1665 else {
1666 Opts.PrecompiledPreambleBytes.first = Bytes;
1667 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1668 }
1669 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00001670
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001671 // Add macros from the command line.
1672 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1673 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001674 if ((*it)->getOption().matches(OPT_D))
Richard Smith1d489cf2012-11-01 04:30:05 +00001675 Opts.addMacroDef((*it)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001676 else
Richard Smith1d489cf2012-11-01 04:30:05 +00001677 Opts.addMacroUndef((*it)->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001678 }
1679
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001680 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001681
1682 // Add the ordered list of -includes.
Argyrios Kyrtzidis3ad86fd2013-02-05 16:36:52 +00001683 for (arg_iterator it = Args.filtered_begin(OPT_include),
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001684 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001685 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001686 Opts.Includes.push_back(A->getValue());
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001687 }
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001688
Argyrios Kyrtzidisb0f4b9a2011-03-09 17:21:42 +00001689 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
1690 ie = Args.filtered_end(); it != ie; ++it) {
1691 const Arg *A = *it;
Richard Smith1d489cf2012-11-01 04:30:05 +00001692 Opts.ChainedIncludes.push_back(A->getValue());
Argyrios Kyrtzidisb0f4b9a2011-03-09 17:21:42 +00001693 }
1694
Chris Lattnerdd173942010-04-14 03:54:58 +00001695 // Include 'altivec.h' if -faltivec option present
1696 if (Args.hasArg(OPT_faltivec))
1697 Opts.Includes.push_back("altivec.h");
1698
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001699 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1700 ie = Args.filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001701 const Arg *A = *it;
Chris Lattner5f9e2722011-07-23 10:55:15 +00001702 std::pair<StringRef,StringRef> Split =
Richard Smith1d489cf2012-11-01 04:30:05 +00001703 StringRef(A->getValue()).split(';');
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001704
1705 if (Split.second.empty()) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001706 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
Daniel Dunbare14b5f52009-12-03 05:11:16 +00001707 continue;
1708 }
1709
1710 Opts.addRemappedFile(Split.first, Split.second);
1711 }
John McCallf85e1932011-06-15 23:02:42 +00001712
1713 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
Richard Smith1d489cf2012-11-01 04:30:05 +00001714 StringRef Name = A->getValue();
John McCallf85e1932011-06-15 23:02:42 +00001715 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1716 .Case("libc++", ARCXX_libcxx)
1717 .Case("libstdc++", ARCXX_libstdcxx)
1718 .Case("none", ARCXX_nolib)
1719 .Default(~0U);
1720 if (Library == ~0U)
1721 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1722 else
1723 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1724 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001725}
1726
1727static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
Jordan Rose74c24982013-01-30 01:52:57 +00001728 ArgList &Args,
1729 frontend::ActionKind Action) {
James Molloybfd7a522012-05-01 14:57:16 +00001730 using namespace options;
Jordan Rose74c24982013-01-30 01:52:57 +00001731
1732 switch (Action) {
1733 case frontend::ASTDeclList:
1734 case frontend::ASTDump:
Jordan Rose74c24982013-01-30 01:52:57 +00001735 case frontend::ASTPrint:
1736 case frontend::ASTView:
1737 case frontend::EmitAssembly:
1738 case frontend::EmitBC:
1739 case frontend::EmitHTML:
1740 case frontend::EmitLLVM:
1741 case frontend::EmitLLVMOnly:
1742 case frontend::EmitCodeGenOnly:
1743 case frontend::EmitObj:
1744 case frontend::FixIt:
1745 case frontend::GenerateModule:
1746 case frontend::GeneratePCH:
1747 case frontend::GeneratePTH:
1748 case frontend::ParseSyntaxOnly:
Douglas Gregorc544ba02013-03-27 16:47:18 +00001749 case frontend::ModuleFileInfo:
Stephen Hines651f13c2014-04-23 16:59:28 -07001750 case frontend::VerifyPCH:
Jordan Rose74c24982013-01-30 01:52:57 +00001751 case frontend::PluginAction:
1752 case frontend::PrintDeclContext:
1753 case frontend::RewriteObjC:
1754 case frontend::RewriteTest:
1755 case frontend::RunAnalysis:
1756 case frontend::MigrateSource:
1757 Opts.ShowCPP = 0;
1758 break;
1759
1760 case frontend::DumpRawTokens:
1761 case frontend::DumpTokens:
1762 case frontend::InitOnly:
1763 case frontend::PrintPreamble:
1764 case frontend::PrintPreprocessedInput:
1765 case frontend::RewriteMacros:
1766 case frontend::RunPreprocessorOnly:
1767 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1768 break;
1769 }
1770
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001771 Opts.ShowComments = Args.hasArg(OPT_C);
Daniel Dunbarf7c16d92010-08-24 22:44:13 +00001772 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001773 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
Daniel Dunbarf7c16d92010-08-24 22:44:13 +00001774 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
David Blaikief1492f92012-06-14 17:36:09 +00001775 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001776}
1777
Weiming Zhao360355d2013-03-06 02:08:54 +00001778static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
James Molloybfd7a522012-05-01 14:57:16 +00001779 using namespace options;
Daniel Dunbar03e8ab22010-05-20 16:54:55 +00001780 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1781 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
Rafael Espindola5389b842013-08-21 21:59:03 +00001782 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
Douglas Gregor57016dd2012-10-16 23:40:58 +00001783 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
Daniel Dunbar39065a52010-08-11 23:07:42 +00001784 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
Duncan Sands2dc14532010-08-30 09:42:39 +00001785 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001786
Sebastian Pop5d8b9542011-11-01 21:33:06 +00001787 // Use the default target triple if unspecified.
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001788 if (Opts.Triple.empty())
Sebastian Pop5d8b9542011-11-01 21:33:06 +00001789 Opts.Triple = llvm::sys::getDefaultTargetTriple();
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001790}
1791
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001792bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Chris Lattner39b49bc2010-11-23 08:35:12 +00001793 const char *const *ArgBegin,
1794 const char *const *ArgEnd,
David Blaikied6471f72011-09-25 23:23:43 +00001795 DiagnosticsEngine &Diags) {
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001796 bool Success = true;
1797
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001798 // Parse the arguments.
Stephen Hines651f13c2014-04-23 16:59:28 -07001799 std::unique_ptr<OptTable> Opts(createDriverOptTable());
Hans Wennborg4ed47cc2013-08-02 20:16:22 +00001800 const unsigned IncludedFlagsBitmask = options::CC1Option;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001801 unsigned MissingArgIndex, MissingArgCount;
Stephen Hines651f13c2014-04-23 16:59:28 -07001802 std::unique_ptr<InputArgList> Args(
1803 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount,
1804 IncludedFlagsBitmask));
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001805
1806 // Check for missing argument error.
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001807 if (MissingArgCount) {
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001808 Diags.Report(diag::err_drv_missing_argument)
1809 << Args->getArgString(MissingArgIndex) << MissingArgCount;
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001810 Success = false;
1811 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001812
1813 // Issue errors on unknown arguments.
1814 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001815 ie = Args->filtered_end(); it != ie; ++it) {
Daniel Dunbar7e4953e2010-06-11 22:00:13 +00001816 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001817 Success = false;
1818 }
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001819
Ted Kremenek45796b12012-08-31 04:36:05 +00001820 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
Fariborz Jahanianb5c6bab2012-01-25 00:20:29 +00001821 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001822 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
Chad Rosier2dec85b2012-03-13 20:09:56 +00001823 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001824 && Success;
Dmitri Gribenko6ebf0912013-02-22 14:21:27 +00001825 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args);
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001826 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
Peter Collingbourne0a3c03c2010-12-04 01:50:36 +00001827 // FIXME: We shouldn't have to pass the DashX option around here
Daniel Dunbarc34ce3f2010-06-07 23:22:09 +00001828 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
Stephen Hines651f13c2014-04-23 16:59:28 -07001829 ParseTargetArgs(Res.getTargetOpts(), *Args);
1830 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags,
1831 Res.getTargetOpts()) && Success;
Daniel Dunbar1e69fe32009-12-13 03:45:58 +00001832 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001833 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
Ted Kremenekd3b74d92011-11-17 23:01:24 +00001834 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001835 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
Ted Kremenekd3b74d92011-11-17 23:01:24 +00001836 Res.getLangOpts()->ObjCExceptions = 1;
Fariborz Jahaniane293d302011-02-25 17:24:55 +00001837 }
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001838 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1839 // PCH file and find the original header name. Remove the need to do that in
Chris Lattner39b49bc2010-11-23 08:35:12 +00001840 // ParsePreprocessorArgs and remove the FileManager
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00001841 // parameters from the function and the "FileManager.h" #include.
Chris Lattner7ad97ff2010-11-23 07:51:02 +00001842 FileManager FileMgr(Res.getFileSystemOpts());
Chris Lattner39b49bc2010-11-23 08:35:12 +00001843 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
Jordan Rose74c24982013-01-30 01:52:57 +00001844 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args,
1845 Res.getFrontendOpts().ProgramAction);
Dylan Noblesmith8fdb6de2011-12-23 03:05:38 +00001846 return Success;
Daniel Dunbar56ac85c2009-12-01 03:16:53 +00001847}
Douglas Gregor6e975c42011-09-13 23:15:45 +00001848
1849namespace {
1850
1851 class ModuleSignature {
Dmitri Gribenkocfa88f82013-01-12 19:30:44 +00001852 SmallVector<uint64_t, 16> Data;
Douglas Gregor6e975c42011-09-13 23:15:45 +00001853 unsigned CurBit;
1854 uint64_t CurValue;
1855
1856 public:
1857 ModuleSignature() : CurBit(0), CurValue(0) { }
1858
1859 void add(uint64_t Value, unsigned Bits);
1860 void add(StringRef Value);
1861 void flush();
1862
1863 llvm::APInt getAsInteger() const;
1864 };
1865}
1866
1867void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1868 CurValue |= Value << CurBit;
1869 if (CurBit + NumBits < 64) {
1870 CurBit += NumBits;
1871 return;
1872 }
1873
1874 // Add the current word.
1875 Data.push_back(CurValue);
1876
1877 if (CurBit)
1878 CurValue = Value >> (64-CurBit);
1879 else
1880 CurValue = 0;
1881 CurBit = (CurBit+NumBits) & 63;
1882}
1883
1884void ModuleSignature::flush() {
1885 if (CurBit == 0)
1886 return;
1887
1888 Data.push_back(CurValue);
1889 CurBit = 0;
1890 CurValue = 0;
1891}
1892
1893void ModuleSignature::add(StringRef Value) {
1894 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1895 add(*I, 8);
1896}
1897
1898llvm::APInt ModuleSignature::getAsInteger() const {
1899 return llvm::APInt(Data.size() * 64, Data);
1900}
1901
1902std::string CompilerInvocation::getModuleHash() const {
Douglas Gregorc544ba02013-03-27 16:47:18 +00001903 // Note: For QoI reasons, the things we use as a hash here should all be
1904 // dumped via the -module-info flag.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001905 using llvm::hash_code;
1906 using llvm::hash_value;
1907 using llvm::hash_combine;
1908
Douglas Gregor6e975c42011-09-13 23:15:45 +00001909 // Start the signature with the compiler version.
Douglas Gregor30431752012-11-05 23:30:26 +00001910 // FIXME: We'd rather use something more cryptographically sound than
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001911 // CityHash, but this will do for now.
1912 hash_code code = hash_value(getClangFullRepositoryVersion());
1913
Douglas Gregor6e975c42011-09-13 23:15:45 +00001914 // Extend the signature with the language options
1915#define LANGOPT(Name, Bits, Default, Description) \
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001916 code = hash_combine(code, LangOpts->Name);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001917#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001918 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
Douglas Gregor6e975c42011-09-13 23:15:45 +00001919#define BENIGN_LANGOPT(Name, Bits, Default, Description)
1920#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1921#include "clang/Basic/LangOptions.def"
1922
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001923 // Extend the signature with the target options.
1924 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001925 TargetOpts->ABI);
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001926 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1927 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001928
Douglas Gregor815759c2011-09-14 15:55:12 +00001929 // Extend the signature with preprocessor options.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001930 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
Douglas Gregor2a060852013-02-07 00:21:12 +00001931 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001932 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1933
Douglas Gregor05edf662011-10-17 14:55:37 +00001934 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1935 I = getPreprocessorOpts().Macros.begin(),
1936 IEnd = getPreprocessorOpts().Macros.end();
1937 I != IEnd; ++I) {
Douglas Gregor2a060852013-02-07 00:21:12 +00001938 // If we're supposed to ignore this macro for the purposes of modules,
1939 // don't put it into the hash.
1940 if (!hsOpts.ModulesIgnoreMacros.empty()) {
Douglas Gregor2a060852013-02-07 00:21:12 +00001941 // Check whether we're ignoring this macro.
Douglas Gregor005d51b2013-02-07 01:18:48 +00001942 StringRef MacroDef = I->first;
1943 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
Douglas Gregor2a060852013-02-07 00:21:12 +00001944 continue;
1945 }
1946
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001947 code = hash_combine(code, I->first, I->second);
Douglas Gregor05edf662011-10-17 14:55:37 +00001948 }
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001949
1950 // Extend the signature with the sysroot.
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001951 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
1952 hsOpts.UseStandardSystemIncludes,
1953 hsOpts.UseStandardCXXIncludes,
1954 hsOpts.UseLibcxx);
Stephen Hines6bcf27b2014-05-29 04:14:42 -07001955 code = hash_combine(code, hsOpts.ResourceDir);
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001956
Stephen Hines651f13c2014-04-23 16:59:28 -07001957 // Extend the signature with the user build path.
1958 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
1959
Douglas Gregord8f681e2013-05-10 21:54:08 +00001960 // Darwin-specific hack: if we have a sysroot, use the contents and
1961 // modification time of
Douglas Gregor31230e62013-04-12 00:18:53 +00001962 // $sysroot/System/Library/CoreServices/SystemVersion.plist
1963 // as part of the module hash.
1964 if (!hsOpts.Sysroot.empty()) {
Douglas Gregor31230e62013-04-12 00:18:53 +00001965 SmallString<128> systemVersionFile;
1966 systemVersionFile += hsOpts.Sysroot;
1967 llvm::sys::path::append(systemVersionFile, "System");
1968 llvm::sys::path::append(systemVersionFile, "Library");
1969 llvm::sys::path::append(systemVersionFile, "CoreServices");
1970 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
Stephen Hinesc568f1e2014-07-21 00:47:37 -07001971
1972 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
1973 llvm::MemoryBuffer::getFile(systemVersionFile.str());
1974 if (buffer) {
Douglas Gregor31230e62013-04-12 00:18:53 +00001975 code = hash_combine(code, buffer.get()->getBuffer());
Douglas Gregord8f681e2013-05-10 21:54:08 +00001976
1977 struct stat statBuf;
1978 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
1979 code = hash_combine(code, statBuf.st_mtime);
Douglas Gregor31230e62013-04-12 00:18:53 +00001980 }
1981 }
1982
Douglas Gregor984e2eb2012-11-05 19:45:09 +00001983 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
Douglas Gregor6e975c42011-09-13 23:15:45 +00001984}
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001985
1986namespace clang {
1987
Stephen Hines651f13c2014-04-23 16:59:28 -07001988template<typename IntTy>
1989static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
1990 IntTy Default,
1991 DiagnosticsEngine *Diags) {
1992 IntTy Res = Default;
Reid Klecknerb1e25a12013-06-14 17:17:23 +00001993 if (Arg *A = Args.getLastArg(Id)) {
1994 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
1995 if (Diags)
1996 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
1997 << A->getValue();
1998 }
1999 }
2000 return Res;
2001}
Stephen Hines651f13c2014-04-23 16:59:28 -07002002
2003
2004// Declared in clang/Frontend/Utils.h.
2005int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2006 DiagnosticsEngine *Diags) {
2007 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2008}
2009
2010uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2011 uint64_t Default,
2012 DiagnosticsEngine *Diags) {
2013 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2014}
2015
2016void BuryPointer(const void *Ptr) {
2017 // This function may be called only a small fixed amount of times per each
2018 // invocation, otherwise we do actually have a leak which we want to report.
2019 // If this function is called more than kGraveYardMaxSize times, the pointers
2020 // will not be properly buried and a leak detector will report a leak, which
2021 // is what we want in such case.
2022 static const size_t kGraveYardMaxSize = 16;
2023 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2024 static std::atomic<unsigned> GraveYardSize;
2025 unsigned Idx = GraveYardSize++;
2026 if (Idx >= kGraveYardMaxSize)
2027 return;
2028 GraveYard[Idx] = Ptr;
2029}
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002030
2031IntrusiveRefCntPtr<vfs::FileSystem>
2032createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2033 DiagnosticsEngine &Diags) {
2034 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2035 return vfs::getRealFileSystem();
2036
2037 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2038 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2039 // earlier vfs files are on the bottom
2040 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
Stephen Hinesc568f1e2014-07-21 00:47:37 -07002041 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2042 llvm::MemoryBuffer::getFile(File);
2043 if (!Buffer) {
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002044 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2045 return IntrusiveRefCntPtr<vfs::FileSystem>();
2046 }
2047
2048 IntrusiveRefCntPtr<vfs::FileSystem> FS =
Stephen Hines176edba2014-12-01 14:53:08 -08002049 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
Stephen Hinesc568f1e2014-07-21 00:47:37 -07002050 if (!FS.get()) {
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002051 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2052 return IntrusiveRefCntPtr<vfs::FileSystem>();
2053 }
2054 Overlay->pushOverlay(FS);
2055 }
2056 return Overlay;
Reid Klecknerb1e25a12013-06-14 17:17:23 +00002057}
Stephen Hines6bcf27b2014-05-29 04:14:42 -07002058} // end namespace clang