1 //===- TableGen.cpp - Top-Level TableGen implementation -------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // TableGen is a tool which can be used to build up a description of something,
11 // then invoke one or more "tablegen backends" to emit information about the
12 // description in some predefined format. In practice, this is used by the LLVM
13 // code generators to automate generation of a code generator through a
14 // high-level description of the target.
16 //===----------------------------------------------------------------------===//
18 #include "AsmMatcherEmitter.h"
19 #include "AsmWriterEmitter.h"
20 #include "CallingConvEmitter.h"
21 #include "ClangASTNodesEmitter.h"
22 #include "ClangAttrEmitter.h"
23 #include "ClangDiagnosticsEmitter.h"
24 #include "ClangSACheckersEmitter.h"
25 #include "CodeEmitterGen.h"
26 #include "DAGISelEmitter.h"
27 #include "DisassemblerEmitter.h"
28 #include "EDEmitter.h"
30 #include "FastISelEmitter.h"
31 #include "InstrEnumEmitter.h"
32 #include "InstrInfoEmitter.h"
33 #include "IntrinsicEmitter.h"
34 #include "LLVMCConfigurationEmitter.h"
35 #include "NeonEmitter.h"
36 #include "OptParserEmitter.h"
38 #include "RegisterInfoEmitter.h"
39 #include "ARMDecoderEmitter.h"
40 #include "SubtargetEmitter.h"
41 #include "SetTheory.h"
43 #include "llvm/ADT/OwningPtr.h"
44 #include "llvm/Support/CommandLine.h"
45 #include "llvm/Support/MemoryBuffer.h"
46 #include "llvm/Support/PrettyStackTrace.h"
47 #include "llvm/Support/ToolOutputFile.h"
48 #include "llvm/Support/Signals.h"
49 #include "llvm/Support/system_error.h"
57 GenRegisterEnums, GenRegisterDesc, GenRegisterInfo, GenRegisterInfoHeader,
58 GenInstrEnums, GenInstrs, GenAsmWriter, GenAsmMatcher,
67 GenClangAttrSpellingList,
70 GenClangDiagsIndexName,
76 GenOptParserDefs, GenOptParserImpl,
91 Action(cl::desc("Action to perform:"),
92 cl::values(clEnumValN(PrintRecords, "print-records",
93 "Print all records to stdout (default)"),
94 clEnumValN(GenEmitter, "gen-emitter",
95 "Generate machine code emitter"),
96 clEnumValN(GenRegisterEnums, "gen-register-enums",
97 "Generate enum values for registers"),
98 clEnumValN(GenRegisterDesc, "gen-register-desc",
99 "Generate register descriptions"),
100 clEnumValN(GenRegisterInfo, "gen-register-info",
101 "Generate registers & reg-classes info"),
102 clEnumValN(GenRegisterInfoHeader, "gen-register-info-header",
103 "Generate registers & reg-classes info header"),
104 clEnumValN(GenInstrEnums, "gen-instr-enums",
105 "Generate enum values for instructions"),
106 clEnumValN(GenInstrs, "gen-instr-desc",
107 "Generate instruction descriptions"),
108 clEnumValN(GenCallingConv, "gen-callingconv",
109 "Generate calling convention descriptions"),
110 clEnumValN(GenAsmWriter, "gen-asm-writer",
111 "Generate assembly writer"),
112 clEnumValN(GenARMDecoder, "gen-arm-decoder",
113 "Generate decoders for ARM/Thumb"),
114 clEnumValN(GenDisassembler, "gen-disassembler",
115 "Generate disassembler"),
116 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
117 "Generate assembly instruction matcher"),
118 clEnumValN(GenDAGISel, "gen-dag-isel",
119 "Generate a DAG instruction selector"),
120 clEnumValN(GenFastISel, "gen-fast-isel",
121 "Generate a \"fast\" instruction selector"),
122 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
123 "Generate option definitions"),
124 clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
125 "Generate option parser implementation"),
126 clEnumValN(GenSubtarget, "gen-subtarget",
127 "Generate subtarget enumerations"),
128 clEnumValN(GenIntrinsic, "gen-intrinsic",
129 "Generate intrinsic information"),
130 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
131 "Generate target intrinsic information"),
132 clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
133 "Generate clang attribute clases"),
134 clEnumValN(GenClangAttrImpl, "gen-clang-attr-impl",
135 "Generate clang attribute implementations"),
136 clEnumValN(GenClangAttrList, "gen-clang-attr-list",
137 "Generate a clang attribute list"),
138 clEnumValN(GenClangAttrPCHRead, "gen-clang-attr-pch-read",
139 "Generate clang PCH attribute reader"),
140 clEnumValN(GenClangAttrPCHWrite, "gen-clang-attr-pch-write",
141 "Generate clang PCH attribute writer"),
142 clEnumValN(GenClangAttrSpellingList,
143 "gen-clang-attr-spelling-list",
144 "Generate a clang attribute spelling list"),
145 clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
146 "Generate Clang diagnostics definitions"),
147 clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
148 "Generate Clang diagnostic groups"),
149 clEnumValN(GenClangDiagsIndexName,
150 "gen-clang-diags-index-name",
151 "Generate Clang diagnostic name index"),
152 clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
153 "Generate Clang AST declaration nodes"),
154 clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
155 "Generate Clang AST statement nodes"),
156 clEnumValN(GenClangSACheckers, "gen-clang-sa-checkers",
157 "Generate Clang Static Analyzer checkers"),
158 clEnumValN(GenLLVMCConf, "gen-llvmc",
159 "Generate LLVMC configuration library"),
160 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
161 "Generate enhanced disassembly info"),
162 clEnumValN(GenArmNeon, "gen-arm-neon",
163 "Generate arm_neon.h for clang"),
164 clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
165 "Generate ARM NEON sema support for clang"),
166 clEnumValN(GenArmNeonTest, "gen-arm-neon-test",
167 "Generate ARM NEON tests for clang"),
168 clEnumValN(PrintEnums, "print-enums",
169 "Print enum values for a class"),
170 clEnumValN(PrintSets, "print-sets",
171 "Print expanded sets for testing DAG exprs"),
175 Class("class", cl::desc("Print Enum list for this class"),
176 cl::value_desc("class name"));
179 OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
183 DependFilename("d", cl::desc("Dependency filename"), cl::value_desc("filename"),
187 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
189 cl::list<std::string>
190 IncludeDirs("I", cl::desc("Directory of include files"),
191 cl::value_desc("directory"), cl::Prefix);
194 ClangComponent("clang-component",
195 cl::desc("Only use warnings from specified component"),
196 cl::value_desc("component"), cl::Hidden);
200 int main(int argc, char **argv) {
201 RecordKeeper Records;
203 sys::PrintStackTraceOnErrorSignal();
204 PrettyStackTraceProgram X(argc, argv);
205 cl::ParseCommandLineOptions(argc, argv);
209 // Parse the input file.
210 OwningPtr<MemoryBuffer> File;
211 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), File)) {
212 errs() << "Could not open input file '" << InputFilename << "': "
213 << ec.message() <<"\n";
216 MemoryBuffer *F = File.take();
218 // Tell SrcMgr about this buffer, which is what TGParser will pick up.
219 SrcMgr.AddNewSourceBuffer(F, SMLoc());
221 // Record the location of the include directory so that the lexer can find
223 SrcMgr.setIncludeDirs(IncludeDirs);
225 TGParser Parser(SrcMgr, Records);
227 if (Parser.ParseFile())
231 tool_output_file Out(OutputFilename.c_str(), Error);
232 if (!Error.empty()) {
233 errs() << argv[0] << ": error opening " << OutputFilename
234 << ":" << Error << "\n";
237 if (!DependFilename.empty()) {
238 if (OutputFilename == "-") {
239 errs() << argv[0] << ": the option -d must be used together with -o\n";
242 tool_output_file DepOut(DependFilename.c_str(), Error);
243 if (!Error.empty()) {
244 errs() << argv[0] << ": error opening " << DependFilename
245 << ":" << Error << "\n";
248 DepOut.os() << DependFilename << ":";
249 const std::vector<std::string> &Dependencies = Parser.getDependencies();
250 for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
251 E = Dependencies.end();
253 DepOut.os() << " " << (*I);
261 Out.os() << Records; // No argument, dump all contents
264 CodeEmitterGen(Records).run(Out.os());
266 case GenRegisterEnums:
267 RegisterInfoEmitter(Records).runEnums(Out.os());
269 case GenRegisterDesc:
270 RegisterInfoEmitter(Records).runDesc(Out.os());
272 case GenRegisterInfo:
273 RegisterInfoEmitter(Records).run(Out.os());
275 case GenRegisterInfoHeader:
276 RegisterInfoEmitter(Records).runHeader(Out.os());
279 InstrEnumEmitter(Records).run(Out.os());
282 InstrInfoEmitter(Records).run(Out.os());
285 CallingConvEmitter(Records).run(Out.os());
288 AsmWriterEmitter(Records).run(Out.os());
291 ARMDecoderEmitter(Records).run(Out.os());
294 AsmMatcherEmitter(Records).run(Out.os());
296 case GenClangAttrClasses:
297 ClangAttrClassEmitter(Records).run(Out.os());
299 case GenClangAttrImpl:
300 ClangAttrImplEmitter(Records).run(Out.os());
302 case GenClangAttrList:
303 ClangAttrListEmitter(Records).run(Out.os());
305 case GenClangAttrPCHRead:
306 ClangAttrPCHReadEmitter(Records).run(Out.os());
308 case GenClangAttrPCHWrite:
309 ClangAttrPCHWriteEmitter(Records).run(Out.os());
311 case GenClangAttrSpellingList:
312 ClangAttrSpellingListEmitter(Records).run(Out.os());
314 case GenClangDiagsDefs:
315 ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
317 case GenClangDiagGroups:
318 ClangDiagGroupsEmitter(Records).run(Out.os());
320 case GenClangDiagsIndexName:
321 ClangDiagsIndexNameEmitter(Records).run(Out.os());
323 case GenClangDeclNodes:
324 ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
325 ClangDeclContextEmitter(Records).run(Out.os());
327 case GenClangStmtNodes:
328 ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
330 case GenClangSACheckers:
331 ClangSACheckersEmitter(Records).run(Out.os());
333 case GenDisassembler:
334 DisassemblerEmitter(Records).run(Out.os());
336 case GenOptParserDefs:
337 OptParserEmitter(Records, true).run(Out.os());
339 case GenOptParserImpl:
340 OptParserEmitter(Records, false).run(Out.os());
343 DAGISelEmitter(Records).run(Out.os());
346 FastISelEmitter(Records).run(Out.os());
349 SubtargetEmitter(Records).run(Out.os());
352 IntrinsicEmitter(Records).run(Out.os());
354 case GenTgtIntrinsic:
355 IntrinsicEmitter(Records, true).run(Out.os());
358 LLVMCConfigurationEmitter(Records).run(Out.os());
361 EDEmitter(Records).run(Out.os());
364 NeonEmitter(Records).run(Out.os());
367 NeonEmitter(Records).runHeader(Out.os());
370 NeonEmitter(Records).runTests(Out.os());
374 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
375 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
376 Out.os() << Recs[i]->getName() << ", ";
383 Sets.addFieldExpander("Set", "Elements");
384 std::vector<Record*> Recs = Records.getAllDerivedDefinitions("Set");
385 for (unsigned i = 0, e = Recs.size(); i != e; ++i) {
386 Out.os() << Recs[i]->getName() << " = [";
387 const std::vector<Record*> *Elts = Sets.expand(Recs[i]);
388 assert(Elts && "Couldn't expand Set instance");
389 for (unsigned ei = 0, ee = Elts->size(); ei != ee; ++ei)
390 Out.os() << ' ' << (*Elts)[ei]->getName();
396 assert(1 && "Invalid Action");
404 } catch (const TGError &Error) {
406 } catch (const std::string &Error) {
408 } catch (const char *Error) {
411 errs() << argv[0] << ": Unknown unexpected exception occurred.\n";