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 "InstrInfoEmitter.h"
32 #include "IntrinsicEmitter.h"
33 #include "NeonEmitter.h"
34 #include "OptParserEmitter.h"
35 #include "PseudoLoweringEmitter.h"
37 #include "RegisterInfoEmitter.h"
38 #include "ARMDecoderEmitter.h"
39 #include "SubtargetEmitter.h"
40 #include "SetTheory.h"
42 #include "llvm/ADT/OwningPtr.h"
43 #include "llvm/Support/CommandLine.h"
44 #include "llvm/Support/MemoryBuffer.h"
45 #include "llvm/Support/PrettyStackTrace.h"
46 #include "llvm/Support/ToolOutputFile.h"
47 #include "llvm/Support/Signals.h"
48 #include "llvm/Support/system_error.h"
69 GenClangAttrSpellingList,
70 GenClangAttrLateParsedList,
73 GenClangDiagsIndexName,
79 GenOptParserDefs, GenOptParserImpl,
93 Action(cl::desc("Action to perform:"),
94 cl::values(clEnumValN(PrintRecords, "print-records",
95 "Print all records to stdout (default)"),
96 clEnumValN(GenEmitter, "gen-emitter",
97 "Generate machine code emitter"),
98 clEnumValN(GenRegisterInfo, "gen-register-info",
99 "Generate registers and register classes info"),
100 clEnumValN(GenInstrInfo, "gen-instr-info",
101 "Generate instruction descriptions"),
102 clEnumValN(GenCallingConv, "gen-callingconv",
103 "Generate calling convention descriptions"),
104 clEnumValN(GenAsmWriter, "gen-asm-writer",
105 "Generate assembly writer"),
106 clEnumValN(GenARMDecoder, "gen-arm-decoder",
107 "Generate decoders for ARM/Thumb"),
108 clEnumValN(GenDisassembler, "gen-disassembler",
109 "Generate disassembler"),
110 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering",
111 "Generate pseudo instruction lowering"),
112 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
113 "Generate assembly instruction matcher"),
114 clEnumValN(GenDAGISel, "gen-dag-isel",
115 "Generate a DAG instruction selector"),
116 clEnumValN(GenFastISel, "gen-fast-isel",
117 "Generate a \"fast\" instruction selector"),
118 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
119 "Generate option definitions"),
120 clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
121 "Generate option parser implementation"),
122 clEnumValN(GenSubtarget, "gen-subtarget",
123 "Generate subtarget enumerations"),
124 clEnumValN(GenIntrinsic, "gen-intrinsic",
125 "Generate intrinsic information"),
126 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
127 "Generate target intrinsic information"),
128 clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
129 "Generate clang attribute clases"),
130 clEnumValN(GenClangAttrImpl, "gen-clang-attr-impl",
131 "Generate clang attribute implementations"),
132 clEnumValN(GenClangAttrList, "gen-clang-attr-list",
133 "Generate a clang attribute list"),
134 clEnumValN(GenClangAttrPCHRead, "gen-clang-attr-pch-read",
135 "Generate clang PCH attribute reader"),
136 clEnumValN(GenClangAttrPCHWrite, "gen-clang-attr-pch-write",
137 "Generate clang PCH attribute writer"),
138 clEnumValN(GenClangAttrSpellingList,
139 "gen-clang-attr-spelling-list",
140 "Generate a clang attribute spelling list"),
141 clEnumValN(GenClangAttrLateParsedList,
142 "gen-clang-attr-late-parsed-list",
143 "Generate a clang attribute LateParsed list"),
144 clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
145 "Generate Clang diagnostics definitions"),
146 clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
147 "Generate Clang diagnostic groups"),
148 clEnumValN(GenClangDiagsIndexName,
149 "gen-clang-diags-index-name",
150 "Generate Clang diagnostic name index"),
151 clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
152 "Generate Clang AST declaration nodes"),
153 clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
154 "Generate Clang AST statement nodes"),
155 clEnumValN(GenClangSACheckers, "gen-clang-sa-checkers",
156 "Generate Clang Static Analyzer checkers"),
157 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
158 "Generate enhanced disassembly info"),
159 clEnumValN(GenArmNeon, "gen-arm-neon",
160 "Generate arm_neon.h for clang"),
161 clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
162 "Generate ARM NEON sema support for clang"),
163 clEnumValN(GenArmNeonTest, "gen-arm-neon-test",
164 "Generate ARM NEON tests for clang"),
165 clEnumValN(PrintEnums, "print-enums",
166 "Print enum values for a class"),
167 clEnumValN(PrintSets, "print-sets",
168 "Print expanded sets for testing DAG exprs"),
172 Class("class", cl::desc("Print Enum list for this class"),
173 cl::value_desc("class name"));
176 OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
180 DependFilename("d", cl::desc("Dependency filename"), cl::value_desc("filename"),
184 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
186 cl::list<std::string>
187 IncludeDirs("I", cl::desc("Directory of include files"),
188 cl::value_desc("directory"), cl::Prefix);
191 ClangComponent("clang-component",
192 cl::desc("Only use warnings from specified component"),
193 cl::value_desc("component"), cl::Hidden);
197 int main(int argc, char **argv) {
198 RecordKeeper Records;
200 sys::PrintStackTraceOnErrorSignal();
201 PrettyStackTraceProgram X(argc, argv);
202 cl::ParseCommandLineOptions(argc, argv);
206 // Parse the input file.
207 OwningPtr<MemoryBuffer> File;
208 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), File)) {
209 errs() << "Could not open input file '" << InputFilename << "': "
210 << ec.message() <<"\n";
213 MemoryBuffer *F = File.take();
215 // Tell SrcMgr about this buffer, which is what TGParser will pick up.
216 SrcMgr.AddNewSourceBuffer(F, SMLoc());
218 // Record the location of the include directory so that the lexer can find
220 SrcMgr.setIncludeDirs(IncludeDirs);
222 TGParser Parser(SrcMgr, Records);
224 if (Parser.ParseFile())
228 tool_output_file Out(OutputFilename.c_str(), Error);
229 if (!Error.empty()) {
230 errs() << argv[0] << ": error opening " << OutputFilename
231 << ":" << Error << "\n";
234 if (!DependFilename.empty()) {
235 if (OutputFilename == "-") {
236 errs() << argv[0] << ": the option -d must be used together with -o\n";
239 tool_output_file DepOut(DependFilename.c_str(), Error);
240 if (!Error.empty()) {
241 errs() << argv[0] << ": error opening " << DependFilename
242 << ":" << Error << "\n";
245 DepOut.os() << OutputFilename << ":";
246 const std::vector<std::string> &Dependencies = Parser.getDependencies();
247 for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
248 E = Dependencies.end();
250 DepOut.os() << " " << (*I);
258 Out.os() << Records; // No argument, dump all contents
261 CodeEmitterGen(Records).run(Out.os());
263 case GenRegisterInfo:
264 RegisterInfoEmitter(Records).run(Out.os());
267 InstrInfoEmitter(Records).run(Out.os());
270 CallingConvEmitter(Records).run(Out.os());
273 AsmWriterEmitter(Records).run(Out.os());
276 ARMDecoderEmitter(Records).run(Out.os());
279 AsmMatcherEmitter(Records).run(Out.os());
281 case GenClangAttrClasses:
282 ClangAttrClassEmitter(Records).run(Out.os());
284 case GenClangAttrImpl:
285 ClangAttrImplEmitter(Records).run(Out.os());
287 case GenClangAttrList:
288 ClangAttrListEmitter(Records).run(Out.os());
290 case GenClangAttrPCHRead:
291 ClangAttrPCHReadEmitter(Records).run(Out.os());
293 case GenClangAttrPCHWrite:
294 ClangAttrPCHWriteEmitter(Records).run(Out.os());
296 case GenClangAttrSpellingList:
297 ClangAttrSpellingListEmitter(Records).run(Out.os());
299 case GenClangAttrLateParsedList:
300 ClangAttrLateParsedListEmitter(Records).run(Out.os());
302 case GenClangDiagsDefs:
303 ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
305 case GenClangDiagGroups:
306 ClangDiagGroupsEmitter(Records).run(Out.os());
308 case GenClangDiagsIndexName:
309 ClangDiagsIndexNameEmitter(Records).run(Out.os());
311 case GenClangDeclNodes:
312 ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
313 ClangDeclContextEmitter(Records).run(Out.os());
315 case GenClangStmtNodes:
316 ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
318 case GenClangSACheckers:
319 ClangSACheckersEmitter(Records).run(Out.os());
321 case GenDisassembler:
322 DisassemblerEmitter(Records).run(Out.os());
324 case GenPseudoLowering:
325 PseudoLoweringEmitter(Records).run(Out.os());
327 case GenOptParserDefs:
328 OptParserEmitter(Records, true).run(Out.os());
330 case GenOptParserImpl:
331 OptParserEmitter(Records, false).run(Out.os());
334 DAGISelEmitter(Records).run(Out.os());
337 FastISelEmitter(Records).run(Out.os());
340 SubtargetEmitter(Records).run(Out.os());
343 IntrinsicEmitter(Records).run(Out.os());
345 case GenTgtIntrinsic:
346 IntrinsicEmitter(Records, true).run(Out.os());
349 EDEmitter(Records).run(Out.os());
352 NeonEmitter(Records).run(Out.os());
355 NeonEmitter(Records).runHeader(Out.os());
358 NeonEmitter(Records).runTests(Out.os());
362 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
363 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
364 Out.os() << Recs[i]->getName() << ", ";
371 Sets.addFieldExpander("Set", "Elements");
372 std::vector<Record*> Recs = Records.getAllDerivedDefinitions("Set");
373 for (unsigned i = 0, e = Recs.size(); i != e; ++i) {
374 Out.os() << Recs[i]->getName() << " = [";
375 const std::vector<Record*> *Elts = Sets.expand(Recs[i]);
376 assert(Elts && "Couldn't expand Set instance");
377 for (unsigned ei = 0, ee = Elts->size(); ei != ee; ++ei)
378 Out.os() << ' ' << (*Elts)[ei]->getName();
384 assert(1 && "Invalid Action");
392 } catch (const TGError &Error) {
394 } catch (const std::string &Error) {
396 } catch (const char *Error) {
399 errs() << argv[0] << ": Unknown unexpected exception occurred.\n";