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"
29 #include "FastISelEmitter.h"
30 #include "InstrEnumEmitter.h"
31 #include "InstrInfoEmitter.h"
32 #include "IntrinsicEmitter.h"
33 #include "LLVMCConfigurationEmitter.h"
34 #include "NeonEmitter.h"
35 #include "OptParserEmitter.h"
37 #include "RegisterInfoEmitter.h"
38 #include "ARMDecoderEmitter.h"
39 #include "SubtargetEmitter.h"
41 #include "llvm/ADT/OwningPtr.h"
42 #include "llvm/Support/CommandLine.h"
43 #include "llvm/Support/MemoryBuffer.h"
44 #include "llvm/Support/PrettyStackTrace.h"
45 #include "llvm/Support/ToolOutputFile.h"
46 #include "llvm/Support/Signals.h"
47 #include "llvm/Support/system_error.h"
55 GenRegisterEnums, GenRegister, GenRegisterHeader,
56 GenInstrEnums, GenInstrs, GenAsmWriter, GenAsmMatcher,
65 GenClangAttrSpellingList,
68 GenClangDiagsIndexName,
74 GenOptParserDefs, GenOptParserImpl,
88 Action(cl::desc("Action to perform:"),
89 cl::values(clEnumValN(PrintRecords, "print-records",
90 "Print all records to stdout (default)"),
91 clEnumValN(GenEmitter, "gen-emitter",
92 "Generate machine code emitter"),
93 clEnumValN(GenRegisterEnums, "gen-register-enums",
94 "Generate enum values for registers"),
95 clEnumValN(GenRegister, "gen-register-desc",
96 "Generate a register info description"),
97 clEnumValN(GenRegisterHeader, "gen-register-desc-header",
98 "Generate a register info description header"),
99 clEnumValN(GenInstrEnums, "gen-instr-enums",
100 "Generate enum values for instructions"),
101 clEnumValN(GenInstrs, "gen-instr-desc",
102 "Generate instruction descriptions"),
103 clEnumValN(GenCallingConv, "gen-callingconv",
104 "Generate calling convention descriptions"),
105 clEnumValN(GenAsmWriter, "gen-asm-writer",
106 "Generate assembly writer"),
107 clEnumValN(GenARMDecoder, "gen-arm-decoder",
108 "Generate decoders for ARM/Thumb"),
109 clEnumValN(GenDisassembler, "gen-disassembler",
110 "Generate disassembler"),
111 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
112 "Generate assembly instruction matcher"),
113 clEnumValN(GenDAGISel, "gen-dag-isel",
114 "Generate a DAG instruction selector"),
115 clEnumValN(GenFastISel, "gen-fast-isel",
116 "Generate a \"fast\" instruction selector"),
117 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
118 "Generate option definitions"),
119 clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
120 "Generate option parser implementation"),
121 clEnumValN(GenSubtarget, "gen-subtarget",
122 "Generate subtarget enumerations"),
123 clEnumValN(GenIntrinsic, "gen-intrinsic",
124 "Generate intrinsic information"),
125 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
126 "Generate target intrinsic information"),
127 clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
128 "Generate clang attribute clases"),
129 clEnumValN(GenClangAttrImpl, "gen-clang-attr-impl",
130 "Generate clang attribute implementations"),
131 clEnumValN(GenClangAttrList, "gen-clang-attr-list",
132 "Generate a clang attribute list"),
133 clEnumValN(GenClangAttrPCHRead, "gen-clang-attr-pch-read",
134 "Generate clang PCH attribute reader"),
135 clEnumValN(GenClangAttrPCHWrite, "gen-clang-attr-pch-write",
136 "Generate clang PCH attribute writer"),
137 clEnumValN(GenClangAttrSpellingList,
138 "gen-clang-attr-spelling-list",
139 "Generate a clang attribute spelling list"),
140 clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
141 "Generate Clang diagnostics definitions"),
142 clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
143 "Generate Clang diagnostic groups"),
144 clEnumValN(GenClangDiagsIndexName,
145 "gen-clang-diags-index-name",
146 "Generate Clang diagnostic name index"),
147 clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
148 "Generate Clang AST declaration nodes"),
149 clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
150 "Generate Clang AST statement nodes"),
151 clEnumValN(GenClangSACheckers, "gen-clang-sa-checkers",
152 "Generate Clang Static Analyzer checkers"),
153 clEnumValN(GenLLVMCConf, "gen-llvmc",
154 "Generate LLVMC configuration library"),
155 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
156 "Generate enhanced disassembly info"),
157 clEnumValN(GenArmNeon, "gen-arm-neon",
158 "Generate arm_neon.h for clang"),
159 clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
160 "Generate ARM NEON sema support for clang"),
161 clEnumValN(GenArmNeonTest, "gen-arm-neon-test",
162 "Generate ARM NEON tests for clang"),
163 clEnumValN(PrintEnums, "print-enums",
164 "Print enum values for a class"),
168 Class("class", cl::desc("Print Enum list for this class"),
169 cl::value_desc("class name"));
172 OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
176 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
178 cl::list<std::string>
179 IncludeDirs("I", cl::desc("Directory of include files"),
180 cl::value_desc("directory"), cl::Prefix);
183 ClangComponent("clang-component",
184 cl::desc("Only use warnings from specified component"),
185 cl::value_desc("component"), cl::Hidden);
189 static SourceMgr SrcMgr;
191 void llvm::PrintError(SMLoc ErrorLoc, const Twine &Msg) {
192 SrcMgr.PrintMessage(ErrorLoc, Msg, "error");
197 /// ParseFile - this function begins the parsing of the specified tablegen
199 static bool ParseFile(const std::string &Filename,
200 const std::vector<std::string> &IncludeDirs,
202 RecordKeeper &Records) {
203 OwningPtr<MemoryBuffer> File;
204 if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
205 errs() << "Could not open input file '" << Filename << "': "
206 << ec.message() <<"\n";
209 MemoryBuffer *F = File.take();
211 // Tell SrcMgr about this buffer, which is what TGParser will pick up.
212 SrcMgr.AddNewSourceBuffer(F, SMLoc());
214 // Record the location of the include directory so that the lexer can find
216 SrcMgr.setIncludeDirs(IncludeDirs);
218 TGParser Parser(SrcMgr, Records);
220 return Parser.ParseFile();
223 int main(int argc, char **argv) {
224 RecordKeeper Records;
226 sys::PrintStackTraceOnErrorSignal();
227 PrettyStackTraceProgram X(argc, argv);
228 cl::ParseCommandLineOptions(argc, argv);
231 // Parse the input file.
232 if (ParseFile(InputFilename, IncludeDirs, SrcMgr, Records))
236 tool_output_file Out(OutputFilename.c_str(), Error);
237 if (!Error.empty()) {
238 errs() << argv[0] << ": error opening " << OutputFilename
239 << ":" << Error << "\n";
246 Out.os() << Records; // No argument, dump all contents
249 CodeEmitterGen(Records).run(Out.os());
252 case GenRegisterEnums:
253 RegisterInfoEmitter(Records).runEnums(Out.os());
256 RegisterInfoEmitter(Records).run(Out.os());
258 case GenRegisterHeader:
259 RegisterInfoEmitter(Records).runHeader(Out.os());
262 InstrEnumEmitter(Records).run(Out.os());
265 InstrInfoEmitter(Records).run(Out.os());
268 CallingConvEmitter(Records).run(Out.os());
271 AsmWriterEmitter(Records).run(Out.os());
274 ARMDecoderEmitter(Records).run(Out.os());
277 AsmMatcherEmitter(Records).run(Out.os());
279 case GenClangAttrClasses:
280 ClangAttrClassEmitter(Records).run(Out.os());
282 case GenClangAttrImpl:
283 ClangAttrImplEmitter(Records).run(Out.os());
285 case GenClangAttrList:
286 ClangAttrListEmitter(Records).run(Out.os());
288 case GenClangAttrPCHRead:
289 ClangAttrPCHReadEmitter(Records).run(Out.os());
291 case GenClangAttrPCHWrite:
292 ClangAttrPCHWriteEmitter(Records).run(Out.os());
294 case GenClangAttrSpellingList:
295 ClangAttrSpellingListEmitter(Records).run(Out.os());
297 case GenClangDiagsDefs:
298 ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
300 case GenClangDiagGroups:
301 ClangDiagGroupsEmitter(Records).run(Out.os());
303 case GenClangDiagsIndexName:
304 ClangDiagsIndexNameEmitter(Records).run(Out.os());
306 case GenClangDeclNodes:
307 ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
308 ClangDeclContextEmitter(Records).run(Out.os());
310 case GenClangStmtNodes:
311 ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
313 case GenClangSACheckers:
314 ClangSACheckersEmitter(Records).run(Out.os());
316 case GenDisassembler:
317 DisassemblerEmitter(Records).run(Out.os());
319 case GenOptParserDefs:
320 OptParserEmitter(Records, true).run(Out.os());
322 case GenOptParserImpl:
323 OptParserEmitter(Records, false).run(Out.os());
326 DAGISelEmitter(Records).run(Out.os());
329 FastISelEmitter(Records).run(Out.os());
332 SubtargetEmitter(Records).run(Out.os());
335 IntrinsicEmitter(Records).run(Out.os());
337 case GenTgtIntrinsic:
338 IntrinsicEmitter(Records, true).run(Out.os());
341 LLVMCConfigurationEmitter(Records).run(Out.os());
344 EDEmitter(Records).run(Out.os());
347 NeonEmitter(Records).run(Out.os());
350 NeonEmitter(Records).runHeader(Out.os());
353 NeonEmitter(Records).runTests(Out.os());
357 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
358 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
359 Out.os() << Recs[i]->getName() << ", ";
364 assert(1 && "Invalid Action");
372 } catch (const TGError &Error) {
373 errs() << argv[0] << ": error:\n";
374 PrintError(Error.getLoc(), Error.getMessage());
376 } catch (const std::string &Error) {
377 errs() << argv[0] << ": " << Error << "\n";
378 } catch (const char *Error) {
379 errs() << argv[0] << ": " << Error << "\n";
381 errs() << argv[0] << ": Unknown unexpected exception occurred.\n";