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 "CodeEmitterGen.h"
25 #include "DAGISelEmitter.h"
26 #include "DisassemblerEmitter.h"
27 #include "EDEmitter.h"
28 #include "FastISelEmitter.h"
29 #include "InstrEnumEmitter.h"
30 #include "InstrInfoEmitter.h"
31 #include "IntrinsicEmitter.h"
32 #include "LLVMCConfigurationEmitter.h"
33 #include "NeonEmitter.h"
34 #include "OptParserEmitter.h"
36 #include "RegisterInfoEmitter.h"
37 #include "ARMDecoderEmitter.h"
38 #include "SubtargetEmitter.h"
40 #include "llvm/Support/CommandLine.h"
41 #include "llvm/Support/MemoryBuffer.h"
42 #include "llvm/Support/PrettyStackTrace.h"
43 #include "llvm/Support/ToolOutputFile.h"
44 #include "llvm/Support/Signals.h"
45 #include "llvm/Support/system_error.h"
53 GenRegisterEnums, GenRegister, GenRegisterHeader,
54 GenInstrEnums, GenInstrs, GenAsmWriter, GenAsmMatcher,
63 GenClangAttrSpellingList,
70 GenOptParserDefs, GenOptParserImpl,
84 Action(cl::desc("Action to perform:"),
85 cl::values(clEnumValN(PrintRecords, "print-records",
86 "Print all records to stdout (default)"),
87 clEnumValN(GenEmitter, "gen-emitter",
88 "Generate machine code emitter"),
89 clEnumValN(GenRegisterEnums, "gen-register-enums",
90 "Generate enum values for registers"),
91 clEnumValN(GenRegister, "gen-register-desc",
92 "Generate a register info description"),
93 clEnumValN(GenRegisterHeader, "gen-register-desc-header",
94 "Generate a register info description header"),
95 clEnumValN(GenInstrEnums, "gen-instr-enums",
96 "Generate enum values for instructions"),
97 clEnumValN(GenInstrs, "gen-instr-desc",
98 "Generate instruction descriptions"),
99 clEnumValN(GenCallingConv, "gen-callingconv",
100 "Generate calling convention descriptions"),
101 clEnumValN(GenAsmWriter, "gen-asm-writer",
102 "Generate assembly writer"),
103 clEnumValN(GenARMDecoder, "gen-arm-decoder",
104 "Generate decoders for ARM/Thumb"),
105 clEnumValN(GenDisassembler, "gen-disassembler",
106 "Generate disassembler"),
107 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
108 "Generate assembly instruction matcher"),
109 clEnumValN(GenDAGISel, "gen-dag-isel",
110 "Generate a DAG instruction selector"),
111 clEnumValN(GenFastISel, "gen-fast-isel",
112 "Generate a \"fast\" instruction selector"),
113 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
114 "Generate option definitions"),
115 clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
116 "Generate option parser implementation"),
117 clEnumValN(GenSubtarget, "gen-subtarget",
118 "Generate subtarget enumerations"),
119 clEnumValN(GenIntrinsic, "gen-intrinsic",
120 "Generate intrinsic information"),
121 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
122 "Generate target intrinsic information"),
123 clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
124 "Generate clang attribute clases"),
125 clEnumValN(GenClangAttrImpl, "gen-clang-attr-impl",
126 "Generate clang attribute implementations"),
127 clEnumValN(GenClangAttrList, "gen-clang-attr-list",
128 "Generate a clang attribute list"),
129 clEnumValN(GenClangAttrPCHRead, "gen-clang-attr-pch-read",
130 "Generate clang PCH attribute reader"),
131 clEnumValN(GenClangAttrPCHWrite, "gen-clang-attr-pch-write",
132 "Generate clang PCH attribute writer"),
133 clEnumValN(GenClangAttrSpellingList, "gen-clang-attr-spelling-list",
134 "Generate a clang attribute spelling list"),
135 clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
136 "Generate Clang diagnostics definitions"),
137 clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
138 "Generate Clang diagnostic groups"),
139 clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
140 "Generate Clang AST statement nodes"),
141 clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
142 "Generate Clang AST statement nodes"),
143 clEnumValN(GenLLVMCConf, "gen-llvmc",
144 "Generate LLVMC configuration library"),
145 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
146 "Generate enhanced disassembly info"),
147 clEnumValN(GenArmNeon, "gen-arm-neon",
148 "Generate arm_neon.h for clang"),
149 clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
150 "Generate ARM NEON sema support for clang"),
151 clEnumValN(GenArmNeonTest, "gen-arm-neon-test",
152 "Generate ARM NEON tests for clang"),
153 clEnumValN(PrintEnums, "print-enums",
154 "Print enum values for a class"),
158 Class("class", cl::desc("Print Enum list for this class"),
159 cl::value_desc("class name"));
162 OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
166 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
168 cl::list<std::string>
169 IncludeDirs("I", cl::desc("Directory of include files"),
170 cl::value_desc("directory"), cl::Prefix);
173 ClangComponent("clang-component",
174 cl::desc("Only use warnings from specified component"),
175 cl::value_desc("component"), cl::Hidden);
179 static SourceMgr SrcMgr;
181 void llvm::PrintError(SMLoc ErrorLoc, const Twine &Msg) {
182 SrcMgr.PrintMessage(ErrorLoc, Msg, "error");
187 /// ParseFile - this function begins the parsing of the specified tablegen
189 static bool ParseFile(const std::string &Filename,
190 const std::vector<std::string> &IncludeDirs,
192 RecordKeeper &Records) {
194 MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), ec);
196 errs() << "Could not open input file '" << Filename << "': "
197 << ec.message() <<"\n";
201 // Tell SrcMgr about this buffer, which is what TGParser will pick up.
202 SrcMgr.AddNewSourceBuffer(F, SMLoc());
204 // Record the location of the include directory so that the lexer can find
206 SrcMgr.setIncludeDirs(IncludeDirs);
208 TGParser Parser(SrcMgr, Records);
210 return Parser.ParseFile();
213 int main(int argc, char **argv) {
214 RecordKeeper Records;
216 sys::PrintStackTraceOnErrorSignal();
217 PrettyStackTraceProgram X(argc, argv);
218 cl::ParseCommandLineOptions(argc, argv);
221 // Parse the input file.
222 if (ParseFile(InputFilename, IncludeDirs, SrcMgr, Records))
226 tool_output_file Out(OutputFilename.c_str(), Error);
227 if (!Error.empty()) {
228 errs() << argv[0] << ": error opening " << OutputFilename
229 << ":" << Error << "\n";
236 Out.os() << Records; // No argument, dump all contents
239 CodeEmitterGen(Records).run(Out.os());
242 case GenRegisterEnums:
243 RegisterInfoEmitter(Records).runEnums(Out.os());
246 RegisterInfoEmitter(Records).run(Out.os());
248 case GenRegisterHeader:
249 RegisterInfoEmitter(Records).runHeader(Out.os());
252 InstrEnumEmitter(Records).run(Out.os());
255 InstrInfoEmitter(Records).run(Out.os());
258 CallingConvEmitter(Records).run(Out.os());
261 AsmWriterEmitter(Records).run(Out.os());
264 ARMDecoderEmitter(Records).run(Out.os());
267 AsmMatcherEmitter(Records).run(Out.os());
269 case GenClangAttrClasses:
270 ClangAttrClassEmitter(Records).run(Out.os());
272 case GenClangAttrImpl:
273 ClangAttrImplEmitter(Records).run(Out.os());
275 case GenClangAttrList:
276 ClangAttrListEmitter(Records).run(Out.os());
278 case GenClangAttrPCHRead:
279 ClangAttrPCHReadEmitter(Records).run(Out.os());
281 case GenClangAttrPCHWrite:
282 ClangAttrPCHWriteEmitter(Records).run(Out.os());
284 case GenClangAttrSpellingList:
285 ClangAttrSpellingListEmitter(Records).run(Out.os());
287 case GenClangDiagsDefs:
288 ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
290 case GenClangDiagGroups:
291 ClangDiagGroupsEmitter(Records).run(Out.os());
293 case GenClangDeclNodes:
294 ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
295 ClangDeclContextEmitter(Records).run(Out.os());
297 case GenClangStmtNodes:
298 ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
300 case GenDisassembler:
301 DisassemblerEmitter(Records).run(Out.os());
303 case GenOptParserDefs:
304 OptParserEmitter(Records, true).run(Out.os());
306 case GenOptParserImpl:
307 OptParserEmitter(Records, false).run(Out.os());
310 DAGISelEmitter(Records).run(Out.os());
313 FastISelEmitter(Records).run(Out.os());
316 SubtargetEmitter(Records).run(Out.os());
319 IntrinsicEmitter(Records).run(Out.os());
321 case GenTgtIntrinsic:
322 IntrinsicEmitter(Records, true).run(Out.os());
325 LLVMCConfigurationEmitter(Records).run(Out.os());
328 EDEmitter(Records).run(Out.os());
331 NeonEmitter(Records).run(Out.os());
334 NeonEmitter(Records).runHeader(Out.os());
337 NeonEmitter(Records).runTests(Out.os());
341 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
342 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
343 Out.os() << Recs[i]->getName() << ", ";
348 assert(1 && "Invalid Action");
356 } catch (const TGError &Error) {
357 errs() << argv[0] << ": error:\n";
358 PrintError(Error.getLoc(), Error.getMessage());
360 } catch (const std::string &Error) {
361 errs() << argv[0] << ": " << Error << "\n";
362 } catch (const char *Error) {
363 errs() << argv[0] << ": " << Error << "\n";
365 errs() << argv[0] << ": Unknown unexpected exception occurred.\n";