1 //===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===//
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 // This file contains the main function for LLVM's TableGen.
12 //===----------------------------------------------------------------------===//
14 #include "TableGenBackends.h" // Declares all backends.
16 #include "SetTheory.h"
17 #include "llvm/Support/CommandLine.h"
18 #include "llvm/Support/PrettyStackTrace.h"
19 #include "llvm/Support/Signals.h"
20 #include "llvm/TableGen/Error.h"
21 #include "llvm/TableGen/Main.h"
22 #include "llvm/TableGen/Record.h"
23 #include "llvm/TableGen/TableGenAction.h"
50 Action(cl::desc("Action to perform:"),
51 cl::values(clEnumValN(PrintRecords, "print-records",
52 "Print all records to stdout (default)"),
53 clEnumValN(GenEmitter, "gen-emitter",
54 "Generate machine code emitter"),
55 clEnumValN(GenRegisterInfo, "gen-register-info",
56 "Generate registers and register classes info"),
57 clEnumValN(GenInstrInfo, "gen-instr-info",
58 "Generate instruction descriptions"),
59 clEnumValN(GenCallingConv, "gen-callingconv",
60 "Generate calling convention descriptions"),
61 clEnumValN(GenAsmWriter, "gen-asm-writer",
62 "Generate assembly writer"),
63 clEnumValN(GenDisassembler, "gen-disassembler",
64 "Generate disassembler"),
65 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering",
66 "Generate pseudo instruction lowering"),
67 clEnumValN(GenAsmMatcher, "gen-asm-matcher",
68 "Generate assembly instruction matcher"),
69 clEnumValN(GenDAGISel, "gen-dag-isel",
70 "Generate a DAG instruction selector"),
71 clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer",
72 "Generate DFA Packetizer for VLIW targets"),
73 clEnumValN(GenFastISel, "gen-fast-isel",
74 "Generate a \"fast\" instruction selector"),
75 clEnumValN(GenSubtarget, "gen-subtarget",
76 "Generate subtarget enumerations"),
77 clEnumValN(GenIntrinsic, "gen-intrinsic",
78 "Generate intrinsic information"),
79 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
80 "Generate target intrinsic information"),
81 clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
82 "Generate enhanced disassembly info"),
83 clEnumValN(PrintEnums, "print-enums",
84 "Print enum values for a class"),
85 clEnumValN(PrintSets, "print-sets",
86 "Print expanded sets for testing DAG exprs"),
90 Class("class", cl::desc("Print Enum list for this class"),
91 cl::value_desc("class name"));
93 class LLVMTableGenAction : public TableGenAction {
95 bool operator()(raw_ostream &OS, RecordKeeper &Records) {
98 OS << Records; // No argument, dump all contents
101 EmitCodeEmitter(Records, OS);
103 case GenRegisterInfo:
104 EmitRegisterInfo(Records, OS);
107 EmitInstrInfo(Records, OS);
110 EmitCallingConv(Records, OS);
113 EmitAsmWriter(Records, OS);
116 EmitAsmMatcher(Records, OS);
118 case GenDisassembler:
119 EmitDisassembler(Records, OS);
121 case GenPseudoLowering:
122 EmitPseudoLowering(Records, OS);
125 EmitDAGISel(Records, OS);
127 case GenDFAPacketizer:
128 EmitDFAPacketizer(Records, OS);
131 EmitFastISel(Records, OS);
134 EmitSubtarget(Records, OS);
137 EmitIntrinsics(Records, OS);
139 case GenTgtIntrinsic:
140 EmitIntrinsics(Records, OS, true);
143 EmitEnhancedDisassemblerInfo(Records, OS);
147 std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
148 for (unsigned i = 0, e = Recs.size(); i != e; ++i)
149 OS << Recs[i]->getName() << ", ";
156 Sets.addFieldExpander("Set", "Elements");
157 std::vector<Record*> Recs = Records.getAllDerivedDefinitions("Set");
158 for (unsigned i = 0, e = Recs.size(); i != e; ++i) {
159 OS << Recs[i]->getName() << " = [";
160 const std::vector<Record*> *Elts = Sets.expand(Recs[i]);
161 assert(Elts && "Couldn't expand Set instance");
162 for (unsigned ei = 0, ee = Elts->size(); ei != ee; ++ei)
163 OS << ' ' << (*Elts)[ei]->getName();
175 int main(int argc, char **argv) {
176 sys::PrintStackTraceOnErrorSignal();
177 PrettyStackTraceProgram X(argc, argv);
178 cl::ParseCommandLineOptions(argc, argv);
180 LLVMTableGenAction Action;
181 return TableGenMain(argv[0], Action);