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/System/Signals.h"
52 GenRegisterEnums, GenRegister, GenRegisterHeader,
53 GenInstrEnums, GenInstrs, GenAsmWriter, GenAsmMatcher,
68 GenOptParserDefs, GenOptParserImpl,
81 Action(cl::desc("Action to perform:"),
82 cl::values(clEnumValN(PrintRecords, "print-records",
83 "Print all records to stdout (default)"),
84 clEnumValN(GenEmitter, "gen-emitter",
85 "Generate machine code emitter"),
86 clEnumValN(GenRegisterEnums, "gen-register-enums",
87 "Generate enum values for registers"),
88 clEnumValN(GenRegister, "gen-register-desc",
89 "Generate a register info description"),
90 clEnumValN(GenRegisterHeader, "gen-register-desc-header",
91 "Generate a register info description header"),
92 clEnumValN(GenInstrEnums, "gen-instr-enums",
93 "Generate enum values for instructions"),
94 clEnumValN(GenInstrs, "gen-instr-desc",
95 "Generate instruction descriptions"),
96 clEnumValN(GenCallingConv, "gen-callingconv",
97 "Generate calling convention descriptions"),
98 clEnumValN(GenAsmWriter, "gen-asm-writer",
99 "Generate assembly writer"),
100 clEnumValN(GenARMDecoder, "gen-arm-decoder",
101 "Generate decoders for ARM/Thumb"),
102 clEnumValN(GenDisassembler, "gen-disassembler",
103 "Generate disassembler"),
104 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
105 "Generate assembly instruction matcher"),
106 clEnumValN(GenDAGISel, "gen-dag-isel",
107 "Generate a DAG instruction selector"),
108 clEnumValN(GenFastISel, "gen-fast-isel",
109 "Generate a \"fast\" instruction selector"),
110 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
111 "Generate option definitions"),
112 clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
113 "Generate option parser implementation"),
114 clEnumValN(GenSubtarget, "gen-subtarget",
115 "Generate subtarget enumerations"),
116 clEnumValN(GenIntrinsic, "gen-intrinsic",
117 "Generate intrinsic information"),
118 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
119 "Generate target intrinsic information"),
120 clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
121 "Generate clang attribute clases"),
122 clEnumValN(GenClangAttrImpl, "gen-clang-attr-impl",
123 "Generate clang attribute implementations"),
124 clEnumValN(GenClangAttrList, "gen-clang-attr-list",
125 "Generate a clang attribute list"),
126 clEnumValN(GenClangAttrPCHRead, "gen-clang-attr-pch-read",
127 "Generate clang PCH attribute reader"),
128 clEnumValN(GenClangAttrPCHWrite, "gen-clang-attr-pch-write",
129 "Generate clang PCH attribute writer"),
130 clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
131 "Generate Clang diagnostics definitions"),
132 clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
133 "Generate Clang diagnostic groups"),
134 clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
135 "Generate Clang AST statement nodes"),
136 clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
137 "Generate Clang AST statement nodes"),
138 clEnumValN(GenLLVMCConf, "gen-llvmc",
139 "Generate LLVMC configuration library"),
140 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
141 "Generate enhanced disassembly info"),
142 clEnumValN(GenArmNeon, "gen-arm-neon",
143 "Generate arm_neon.h for clang"),
144 clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
145 "Generate ARM NEON sema support for clang"),
146 clEnumValN(PrintEnums, "print-enums",
147 "Print enum values for a class"),
151 Class("class", cl::desc("Print Enum list for this class"),
152 cl::value_desc("class name"));
155 OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
159 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
161 cl::list<std::string>
162 IncludeDirs("I", cl::desc("Directory of include files"),
163 cl::value_desc("directory"), cl::Prefix);
166 ClangComponent("clang-component",
167 cl::desc("Only use warnings from specified component"),
168 cl::value_desc("component"), cl::Hidden);
172 // FIXME: Eliminate globals from tblgen.
173 RecordKeeper llvm::Records;
175 static SourceMgr SrcMgr;
177 void llvm::PrintError(SMLoc ErrorLoc, const Twine &Msg) {
178 SrcMgr.PrintMessage(ErrorLoc, Msg, "error");
183 /// ParseFile - this function begins the parsing of the specified tablegen
185 static bool ParseFile(const std::string &Filename,
186 const std::vector<std::string> &IncludeDirs,
188 std::string ErrorStr;
189 MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), &ErrorStr);
191 errs() << "Could not open input file '" << Filename << "': "
196 // Tell SrcMgr about this buffer, which is what TGParser will pick up.
197 SrcMgr.AddNewSourceBuffer(F, SMLoc());
199 // Record the location of the include directory so that the lexer can find
201 SrcMgr.setIncludeDirs(IncludeDirs);
203 TGParser Parser(SrcMgr);
205 return Parser.ParseFile();
208 int main(int argc, char **argv) {
209 sys::PrintStackTraceOnErrorSignal();
210 PrettyStackTraceProgram X(argc, argv);
211 cl::ParseCommandLineOptions(argc, argv);
214 // Parse the input file.
215 if (ParseFile(InputFilename, IncludeDirs, SrcMgr))
219 tool_output_file Out(OutputFilename.c_str(), Error);
220 if (!Error.empty()) {
221 errs() << argv[0] << ": error opening " << OutputFilename
222 << ":" << Error << "\n";
229 Out.os() << Records; // No argument, dump all contents
232 CodeEmitterGen(Records).run(Out.os());
235 case GenRegisterEnums:
236 RegisterInfoEmitter(Records).runEnums(Out.os());
239 RegisterInfoEmitter(Records).run(Out.os());
241 case GenRegisterHeader:
242 RegisterInfoEmitter(Records).runHeader(Out.os());
245 InstrEnumEmitter(Records).run(Out.os());
248 InstrInfoEmitter(Records).run(Out.os());
251 CallingConvEmitter(Records).run(Out.os());
254 AsmWriterEmitter(Records).run(Out.os());
257 ARMDecoderEmitter(Records).run(Out.os());
260 AsmMatcherEmitter(Records).run(Out.os());
262 case GenClangAttrClasses:
263 ClangAttrClassEmitter(Records).run(Out.os());
265 case GenClangAttrImpl:
266 ClangAttrImplEmitter(Records).run(Out.os());
268 case GenClangAttrList:
269 ClangAttrListEmitter(Records).run(Out.os());
271 case GenClangAttrPCHRead:
272 ClangAttrPCHReadEmitter(Records).run(Out.os());
274 case GenClangAttrPCHWrite:
275 ClangAttrPCHWriteEmitter(Records).run(Out.os());
277 case GenClangDiagsDefs:
278 ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
280 case GenClangDiagGroups:
281 ClangDiagGroupsEmitter(Records).run(Out.os());
283 case GenClangDeclNodes:
284 ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
285 ClangDeclContextEmitter(Records).run(Out.os());
287 case GenClangStmtNodes:
288 ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
290 case GenDisassembler:
291 DisassemblerEmitter(Records).run(Out.os());
293 case GenOptParserDefs:
294 OptParserEmitter(Records, true).run(Out.os());
296 case GenOptParserImpl:
297 OptParserEmitter(Records, false).run(Out.os());
300 DAGISelEmitter(Records).run(Out.os());
303 FastISelEmitter(Records).run(Out.os());
306 SubtargetEmitter(Records).run(Out.os());
309 IntrinsicEmitter(Records).run(Out.os());
311 case GenTgtIntrinsic:
312 IntrinsicEmitter(Records, true).run(Out.os());
315 LLVMCConfigurationEmitter(Records).run(Out.os());
318 EDEmitter(Records).run(Out.os());
321 NeonEmitter(Records).run(Out.os());
324 NeonEmitter(Records).runHeader(Out.os());
328 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
329 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
330 Out.os() << Recs[i]->getName() << ", ";
335 assert(1 && "Invalid Action");
343 } catch (const TGError &Error) {
344 errs() << argv[0] << ": error:\n";
345 PrintError(Error.getLoc(), Error.getMessage());
347 } catch (const std::string &Error) {
348 errs() << argv[0] << ": " << Error << "\n";
349 } catch (const char *Error) {
350 errs() << argv[0] << ": " << Error << "\n";
352 errs() << argv[0] << ": Unknown unexpected exception occurred.\n";