1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
//===--- CC1Options.cpp - Clang CC1 Options Table -----------------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/CC1Options.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/OptTable.h"
#include "clang/Driver/Option.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Host.h"
using namespace clang::driver;
using namespace clang::driver::options;
using namespace clang::driver::cc1options;
static OptTable::Info CC1InfoTable[] = {
#define OPTION(NAME, ID, KIND, GROUP, ALIAS, FLAGS, PARAM, \
HELPTEXT, METAVAR) \
{ NAME, HELPTEXT, METAVAR, Option::KIND##Class, FLAGS, PARAM, \
OPT_##GROUP, OPT_##ALIAS },
#include "clang/Driver/CC1Options.inc"
};
namespace {
class CC1OptTable : public OptTable {
public:
CC1OptTable()
: OptTable(CC1InfoTable, sizeof(CC1InfoTable) / sizeof(CC1InfoTable[0])) {}
};
}
OptTable *clang::driver::createCC1OptTable() {
return new CC1OptTable();
}
//
using namespace clang;
static llvm::StringRef getLastArgValue(ArgList &Args, cc1options::ID ID,
llvm::StringRef Default = "") {
if (Arg *A = Args.getLastArg(ID))
return A->getValue(Args);
return Default;
}
static int getLastArgIntValue(ArgList &Args, cc1options::ID ID,
int Default = 0) {
Arg *A = Args.getLastArg(ID);
if (!A)
return Default;
int Res = Default;
// FIXME: What to do about argument parsing errors?
if (llvm::StringRef(A->getValue(Args)).getAsInteger(10, Res))
llvm::errs() << "error: invalid integral argument in '"
<< A->getAsString(Args) << "'\n";
return Res;
}
static std::vector<std::string>
getAllArgValues(ArgList &Args, cc1options::ID ID) {
llvm::SmallVector<const char *, 16> Values;
Args.AddAllArgValues(Values, ID);
return std::vector<std::string>(Values.begin(), Values.end());
}
//
static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args) {
Opts.AnalysisList.clear();
#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \
if (Args.hasArg(cc1options::OPT_analysis_##NAME)) \
Opts.AnalysisList.push_back(NAME);
#include "clang/Frontend/Analyses.def"
if (Arg *A = Args.getLastArg(cc1options::OPT_analyzer_store)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/Frontend/Analyses.def"
.Default(NumStores);
// FIXME: Error handling.
if (Value == NumStores)
llvm::errs() << "error: invalid analysis store '" << Name << "'\n";
else
Opts.AnalysisStoreOpt = Value;
}
if (Arg *A = Args.getLastArg(cc1options::OPT_analyzer_constraints)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/Frontend/Analyses.def"
.Default(NumConstraints);
// FIXME: Error handling.
if (Value == NumConstraints)
llvm::errs() << "error: invalid analysis constraints '" << Name << "'\n";
else
Opts.AnalysisConstraintsOpt = Value;
}
if (Arg *A = Args.getLastArg(cc1options::OPT_analyzer_output)) {
llvm::StringRef Name = A->getValue(Args);
AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
.Case(CMDFLAG, PD_##NAME)
#include "clang/Frontend/Analyses.def"
.Default(NUM_ANALYSIS_DIAG_CLIENTS);
// FIXME: Error handling.
if (Value == NUM_ANALYSIS_DIAG_CLIENTS)
llvm::errs() << "error: invalid analysis output '" << Name << "'\n";
else
Opts.AnalysisDiagOpt = Value;
}
Opts.VisualizeEGDot =
Args.hasArg(cc1options::OPT_analyzer_viz_egraph_graphviz);
Opts.VisualizeEGUbi =
Args.hasArg(cc1options::OPT_analyzer_viz_egraph_ubigraph);
Opts.AnalyzeAll = Args.hasArg(cc1options::OPT_analyzer_opt_analyze_headers);
Opts.AnalyzerDisplayProgress =
Args.hasArg(cc1options::OPT_analyzer_display_progress);
Opts.PurgeDead = !Args.hasArg(cc1options::OPT_analyzer_no_purge_dead);
Opts.EagerlyAssume = Args.hasArg(cc1options::OPT_analyzer_eagerly_assume);
Opts.AnalyzeSpecificFunction =
getLastArgValue(Args, cc1options::OPT_analyze_function);
Opts.EnableExperimentalChecks =
Args.hasArg(cc1options::OPT_analyzer_experimental_checks);
Opts.EnableExperimentalInternalChecks =
Args.hasArg(cc1options::OPT_analyzer_experimental_internal_checks);
Opts.TrimGraph = Args.hasArg(cc1options::OPT_trim_egraph);
}
static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args) {
// -Os implies -O2
if (Args.hasArg(cc1options::OPT_Os))
Opts.OptimizationLevel = 2;
else
Opts.OptimizationLevel = getLastArgIntValue(Args, cc1options::OPT_O);
// FIXME: What to do about argument parsing errors?
if (Opts.OptimizationLevel > 3) {
llvm::errs() << "error: invalid optimization level '"
<< Opts.OptimizationLevel << "' (out of range)\n";
Opts.OptimizationLevel = 3;
}
// We must always run at least the always inlining pass.
Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
: CodeGenOptions::OnlyAlwaysInlining;
Opts.DebugInfo = Args.hasArg(cc1options::OPT_g);
Opts.DisableLLVMOpts = Args.hasArg(cc1options::OPT_disable_llvm_optzns);
Opts.DisableRedZone = Args.hasArg(cc1options::OPT_disable_red_zone);
Opts.MergeAllConstants = !Args.hasArg(cc1options::OPT_fno_merge_all_constants);
Opts.NoCommon = Args.hasArg(cc1options::OPT_fno_common);
Opts.NoImplicitFloat = Args.hasArg(cc1options::OPT_no_implicit_float);
Opts.OptimizeSize = Args.hasArg(cc1options::OPT_Os);
Opts.SimplifyLibCalls = 1;
Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
// FIXME: Implement!
// FIXME: Eliminate this dependency?
// if (Lang.NoBuiltin)
// Opts.SimplifyLibCalls = 0;
// if (Lang.CPlusPlus)
// Opts.NoCommon = 1;
// Opts.TimePasses = TimePasses;
// FIXME: Put elsewhere?
#ifdef NDEBUG
Opts.VerifyModule = 0;
#endif
}
static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
ArgList &Args) {
Opts.OutputFile = getLastArgValue(Args, cc1options::OPT_dependency_file);
Opts.Targets = getAllArgValues(Args, cc1options::OPT_MT);
Opts.IncludeSystemHeaders = Args.hasArg(cc1options::OPT_sys_header_deps);
Opts.UsePhonyTargets = Args.hasArg(cc1options::OPT_MP);
}
static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
Opts.ABI = getLastArgValue(Args, cc1options::OPT_target_abi);
Opts.CPU = getLastArgValue(Args, cc1options::OPT_mcpu);
Opts.Triple = getLastArgValue(Args, cc1options::OPT_triple);
Opts.Features = getAllArgValues(Args, cc1options::OPT_target_feature);
// Use the host triple if unspecified.
if (Opts.Triple.empty())
Opts.Triple = llvm::sys::getHostTriple();
}
//
void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
const char **ArgBegin,
const char **ArgEnd) {
// Parse the arguments.
llvm::OwningPtr<OptTable> Opts(createCC1OptTable());
unsigned MissingArgIndex, MissingArgCount;
llvm::OwningPtr<InputArgList> InputArgs(
Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
// Check for missing argument error.
if (MissingArgCount) {
// FIXME: Use proper diagnostics!
llvm::errs() << "error: argument to '"
<< InputArgs->getArgString(MissingArgIndex)
<< "' is missing (expected " << MissingArgCount
<< " value )\n";
}
ParseAnalyzerArgs(Res.getAnalyzerOpts(), *InputArgs);
ParseCodeGenArgs(Res.getCodeGenOpts(), *InputArgs);
ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *InputArgs);
ParseTargetArgs(Res.getTargetOpts(), *InputArgs);
}
|
