1 //===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file contains the main function for LLVM's TableGen.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "TableGenBackends.h" // Declares all backends.
15 #include "llvm/Support/CommandLine.h"
16 #include "llvm/Support/ManagedStatic.h"
17 #include "llvm/Support/PrettyStackTrace.h"
18 #include "llvm/Support/Signals.h"
19 #include "llvm/TableGen/Main.h"
20 #include "llvm/TableGen/Record.h"
21 #include "llvm/TableGen/SetTheory.h"
22
23 using namespace llvm;
24
25 enum ActionType {
26 PrintRecords,
27 DumpJSON,
28 GenEmitter,
29 GenRegisterInfo,
30 GenInstrInfo,
31 GenInstrDocs,
32 GenAsmWriter,
33 GenAsmMatcher,
34 GenDisassembler,
35 GenPseudoLowering,
36 GenCompressInst,
37 GenCallingConv,
38 GenDAGISel,
39 GenDFAPacketizer,
40 GenFastISel,
41 GenSubtarget,
42 GenIntrinsicEnums,
43 GenIntrinsicImpl,
44 GenTgtIntrinsicEnums,
45 GenTgtIntrinsicImpl,
46 PrintEnums,
47 PrintSets,
48 GenOptParserDefs,
49 GenCTags,
50 GenAttributes,
51 GenSearchableTables,
52 GenGlobalISel,
53 GenX86EVEX2VEXTables,
54 GenX86FoldTables,
55 GenRegisterBank,
56 GenExegesis,
57 };
58
59 namespace {
60 cl::opt<ActionType>
61 Action(cl::desc("Action to perform:"),
62 cl::values(clEnumValN(PrintRecords, "print-records",
63 "Print all records to stdout (default)"),
64 clEnumValN(DumpJSON, "dump-json",
65 "Dump all records as machine-readable JSON"),
66 clEnumValN(GenEmitter, "gen-emitter",
67 "Generate machine code emitter"),
68 clEnumValN(GenRegisterInfo, "gen-register-info",
69 "Generate registers and register classes info"),
70 clEnumValN(GenInstrInfo, "gen-instr-info",
71 "Generate instruction descriptions"),
72 clEnumValN(GenInstrDocs, "gen-instr-docs",
73 "Generate instruction documentation"),
74 clEnumValN(GenCallingConv, "gen-callingconv",
75 "Generate calling convention descriptions"),
76 clEnumValN(GenAsmWriter, "gen-asm-writer",
77 "Generate assembly writer"),
78 clEnumValN(GenDisassembler, "gen-disassembler",
79 "Generate disassembler"),
80 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering",
81 "Generate pseudo instruction lowering"),
82 clEnumValN(GenCompressInst, "gen-compress-inst-emitter",
83 "Generate RISCV compressed instructions."),
84 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
85 "Generate assembly instruction matcher"),
86 clEnumValN(GenDAGISel, "gen-dag-isel",
87 "Generate a DAG instruction selector"),
88 clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer",
89 "Generate DFA Packetizer for VLIW targets"),
90 clEnumValN(GenFastISel, "gen-fast-isel",
91 "Generate a \"fast\" instruction selector"),
92 clEnumValN(GenSubtarget, "gen-subtarget",
93 "Generate subtarget enumerations"),
94 clEnumValN(GenIntrinsicEnums, "gen-intrinsic-enums",
95 "Generate intrinsic enums"),
96 clEnumValN(GenIntrinsicImpl, "gen-intrinsic-impl",
97 "Generate intrinsic information"),
98 clEnumValN(GenTgtIntrinsicEnums, "gen-tgt-intrinsic-enums",
99 "Generate target intrinsic enums"),
100 clEnumValN(GenTgtIntrinsicImpl, "gen-tgt-intrinsic-impl",
101 "Generate target intrinsic information"),
102 clEnumValN(PrintEnums, "print-enums",
103 "Print enum values for a class"),
104 clEnumValN(PrintSets, "print-sets",
105 "Print expanded sets for testing DAG exprs"),
106 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
107 "Generate option definitions"),
108 clEnumValN(GenCTags, "gen-ctags",
109 "Generate ctags-compatible index"),
110 clEnumValN(GenAttributes, "gen-attrs",
111 "Generate attributes"),
112 clEnumValN(GenSearchableTables, "gen-searchable-tables",
113 "Generate generic binary-searchable table"),
114 clEnumValN(GenGlobalISel, "gen-global-isel",
115 "Generate GlobalISel selector"),
116 clEnumValN(GenX86EVEX2VEXTables, "gen-x86-EVEX2VEX-tables",
117 "Generate X86 EVEX to VEX compress tables"),
118 clEnumValN(GenX86FoldTables, "gen-x86-fold-tables",
119 "Generate X86 fold tables"),
120 clEnumValN(GenRegisterBank, "gen-register-bank",
121 "Generate registers bank descriptions"),
122 clEnumValN(GenExegesis, "gen-exegesis",
123 "Generate llvm-exegesis tables")));
124
125 cl::OptionCategory PrintEnumsCat("Options for -print-enums");
126 cl::opt<std::string>
127 Class("class", cl::desc("Print Enum list for this class"),
128 cl::value_desc("class name"), cl::cat(PrintEnumsCat));
129
LLVMTableGenMain(raw_ostream & OS,RecordKeeper & Records)130 bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) {
131 switch (Action) {
132 case PrintRecords:
133 OS << Records; // No argument, dump all contents
134 break;
135 case DumpJSON:
136 EmitJSON(Records, OS);
137 break;
138 case GenEmitter:
139 EmitCodeEmitter(Records, OS);
140 break;
141 case GenRegisterInfo:
142 EmitRegisterInfo(Records, OS);
143 break;
144 case GenInstrInfo:
145 EmitInstrInfo(Records, OS);
146 break;
147 case GenInstrDocs:
148 EmitInstrDocs(Records, OS);
149 break;
150 case GenCallingConv:
151 EmitCallingConv(Records, OS);
152 break;
153 case GenAsmWriter:
154 EmitAsmWriter(Records, OS);
155 break;
156 case GenAsmMatcher:
157 EmitAsmMatcher(Records, OS);
158 break;
159 case GenDisassembler:
160 EmitDisassembler(Records, OS);
161 break;
162 case GenPseudoLowering:
163 EmitPseudoLowering(Records, OS);
164 break;
165 case GenCompressInst:
166 EmitCompressInst(Records, OS);
167 break;
168 case GenDAGISel:
169 EmitDAGISel(Records, OS);
170 break;
171 case GenDFAPacketizer:
172 EmitDFAPacketizer(Records, OS);
173 break;
174 case GenFastISel:
175 EmitFastISel(Records, OS);
176 break;
177 case GenSubtarget:
178 EmitSubtarget(Records, OS);
179 break;
180 case GenIntrinsicEnums:
181 EmitIntrinsicEnums(Records, OS);
182 break;
183 case GenIntrinsicImpl:
184 EmitIntrinsicImpl(Records, OS);
185 break;
186 case GenTgtIntrinsicEnums:
187 EmitIntrinsicEnums(Records, OS, true);
188 break;
189 case GenTgtIntrinsicImpl:
190 EmitIntrinsicImpl(Records, OS, true);
191 break;
192 case GenOptParserDefs:
193 EmitOptParser(Records, OS);
194 break;
195 case PrintEnums:
196 {
197 for (Record *Rec : Records.getAllDerivedDefinitions(Class))
198 OS << Rec->getName() << ", ";
199 OS << "\n";
200 break;
201 }
202 case PrintSets:
203 {
204 SetTheory Sets;
205 Sets.addFieldExpander("Set", "Elements");
206 for (Record *Rec : Records.getAllDerivedDefinitions("Set")) {
207 OS << Rec->getName() << " = [";
208 const std::vector<Record*> *Elts = Sets.expand(Rec);
209 assert(Elts && "Couldn't expand Set instance");
210 for (Record *Elt : *Elts)
211 OS << ' ' << Elt->getName();
212 OS << " ]\n";
213 }
214 break;
215 }
216 case GenCTags:
217 EmitCTags(Records, OS);
218 break;
219 case GenAttributes:
220 EmitAttributes(Records, OS);
221 break;
222 case GenSearchableTables:
223 EmitSearchableTables(Records, OS);
224 break;
225 case GenGlobalISel:
226 EmitGlobalISel(Records, OS);
227 break;
228 case GenRegisterBank:
229 EmitRegisterBank(Records, OS);
230 break;
231 case GenX86EVEX2VEXTables:
232 EmitX86EVEX2VEXTables(Records, OS);
233 break;
234 case GenX86FoldTables:
235 EmitX86FoldTables(Records, OS);
236 break;
237 case GenExegesis:
238 EmitExegesis(Records, OS);
239 break;
240 }
241
242 return false;
243 }
244 }
245
main(int argc,char ** argv)246 int main(int argc, char **argv) {
247 sys::PrintStackTraceOnErrorSignal(argv[0]);
248 PrettyStackTraceProgram X(argc, argv);
249 cl::ParseCommandLineOptions(argc, argv);
250
251 llvm_shutdown_obj Y;
252
253 return TableGenMain(argv[0], &LLVMTableGenMain);
254 }
255
256 #ifdef __has_feature
257 #if __has_feature(address_sanitizer)
258 #include <sanitizer/lsan_interface.h>
259 // Disable LeakSanitizer for this binary as it has too many leaks that are not
260 // very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h .
__lsan_is_turned_off()261 LLVM_ATTRIBUTE_USED int __lsan_is_turned_off() { return 1; }
262 #endif // __has_feature(address_sanitizer)
263 #endif // defined(__has_feature)
264