229 lines
7.7 KiB
C++
229 lines
7.7 KiB
C++
//===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the main function for LLVM's TableGen.
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//
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//===----------------------------------------------------------------------===//
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#include "TableGenBackends.h" // Declares all backends.
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/TableGen/Error.h"
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#include "llvm/TableGen/Main.h"
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#include "llvm/TableGen/Record.h"
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#include "llvm/TableGen/SetTheory.h"
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using namespace llvm;
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enum ActionType {
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PrintRecords,
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GenEmitter,
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GenRegisterInfo,
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GenInstrInfo,
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GenAsmWriter,
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GenAsmMatcher,
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GenDisassembler,
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GenPseudoLowering,
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GenCallingConv,
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GenDAGISel,
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GenDFAPacketizer,
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GenFastISel,
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GenSubtarget,
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GenIntrinsic,
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GenTgtIntrinsic,
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PrintEnums,
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PrintSets,
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GenOptParserDefs,
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GenCTags,
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GenAttributes,
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GenSearchableTables,
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GenGlobalISel,
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GenX86FoldTables,
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GenX86EVEX2VEXTables,
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GenRegisterBank,
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};
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namespace {
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cl::opt<ActionType>
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Action(cl::desc("Action to perform:"),
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cl::values(clEnumValN(PrintRecords, "print-records",
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"Print all records to stdout (default)"),
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clEnumValN(GenEmitter, "gen-emitter",
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"Generate machine code emitter"),
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clEnumValN(GenRegisterInfo, "gen-register-info",
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"Generate registers and register classes info"),
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clEnumValN(GenInstrInfo, "gen-instr-info",
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"Generate instruction descriptions"),
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clEnumValN(GenCallingConv, "gen-callingconv",
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"Generate calling convention descriptions"),
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clEnumValN(GenAsmWriter, "gen-asm-writer",
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"Generate assembly writer"),
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clEnumValN(GenDisassembler, "gen-disassembler",
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"Generate disassembler"),
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clEnumValN(GenPseudoLowering, "gen-pseudo-lowering",
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"Generate pseudo instruction lowering"),
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clEnumValN(GenAsmMatcher, "gen-asm-matcher",
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"Generate assembly instruction matcher"),
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clEnumValN(GenDAGISel, "gen-dag-isel",
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"Generate a DAG instruction selector"),
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clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer",
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"Generate DFA Packetizer for VLIW targets"),
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clEnumValN(GenFastISel, "gen-fast-isel",
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"Generate a \"fast\" instruction selector"),
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clEnumValN(GenSubtarget, "gen-subtarget",
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"Generate subtarget enumerations"),
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clEnumValN(GenIntrinsic, "gen-intrinsic",
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"Generate intrinsic information"),
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clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
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"Generate target intrinsic information"),
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clEnumValN(PrintEnums, "print-enums",
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"Print enum values for a class"),
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clEnumValN(PrintSets, "print-sets",
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"Print expanded sets for testing DAG exprs"),
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clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
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"Generate option definitions"),
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clEnumValN(GenCTags, "gen-ctags",
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"Generate ctags-compatible index"),
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clEnumValN(GenAttributes, "gen-attrs",
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"Generate attributes"),
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clEnumValN(GenSearchableTables, "gen-searchable-tables",
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"Generate generic binary-searchable table"),
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clEnumValN(GenGlobalISel, "gen-global-isel",
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"Generate GlobalISel selector"),
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clEnumValN(GenX86FoldTables, "gen-x86-fold-tables",
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"Generate X86 fold tables"),
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clEnumValN(GenX86EVEX2VEXTables, "gen-x86-EVEX2VEX-tables",
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"Generate X86 EVEX to VEX compress tables"),
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clEnumValN(GenRegisterBank, "gen-register-bank",
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"Generate registers bank descriptions")));
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cl::OptionCategory PrintEnumsCat("Options for -print-enums");
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cl::opt<std::string>
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Class("class", cl::desc("Print Enum list for this class"),
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cl::value_desc("class name"), cl::cat(PrintEnumsCat));
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bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) {
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switch (Action) {
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case PrintRecords:
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OS << Records; // No argument, dump all contents
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break;
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case GenEmitter:
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EmitCodeEmitter(Records, OS);
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break;
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case GenRegisterInfo:
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EmitRegisterInfo(Records, OS);
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break;
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case GenInstrInfo:
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EmitInstrInfo(Records, OS);
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break;
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case GenCallingConv:
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EmitCallingConv(Records, OS);
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break;
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case GenAsmWriter:
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EmitAsmWriter(Records, OS);
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break;
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case GenAsmMatcher:
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EmitAsmMatcher(Records, OS);
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break;
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case GenDisassembler:
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EmitDisassembler(Records, OS);
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break;
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case GenPseudoLowering:
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EmitPseudoLowering(Records, OS);
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break;
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case GenDAGISel:
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EmitDAGISel(Records, OS);
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break;
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case GenDFAPacketizer:
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EmitDFAPacketizer(Records, OS);
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break;
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case GenFastISel:
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EmitFastISel(Records, OS);
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break;
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case GenSubtarget:
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EmitSubtarget(Records, OS);
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break;
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case GenIntrinsic:
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EmitIntrinsics(Records, OS);
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break;
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case GenTgtIntrinsic:
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EmitIntrinsics(Records, OS, true);
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break;
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case GenOptParserDefs:
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EmitOptParser(Records, OS);
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break;
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case PrintEnums:
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{
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for (Record *Rec : Records.getAllDerivedDefinitions(Class))
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OS << Rec->getName() << ", ";
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OS << "\n";
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break;
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}
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case PrintSets:
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{
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SetTheory Sets;
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Sets.addFieldExpander("Set", "Elements");
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for (Record *Rec : Records.getAllDerivedDefinitions("Set")) {
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OS << Rec->getName() << " = [";
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const std::vector<Record*> *Elts = Sets.expand(Rec);
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assert(Elts && "Couldn't expand Set instance");
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for (Record *Elt : *Elts)
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OS << ' ' << Elt->getName();
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OS << " ]\n";
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}
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break;
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}
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case GenCTags:
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EmitCTags(Records, OS);
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break;
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case GenAttributes:
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EmitAttributes(Records, OS);
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break;
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case GenSearchableTables:
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EmitSearchableTables(Records, OS);
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break;
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case GenGlobalISel:
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EmitGlobalISel(Records, OS);
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break;
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case GenX86FoldTables:
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EmitX86FoldTables(Records, OS);
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break;
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case GenRegisterBank:
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EmitRegisterBank(Records, OS);
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break;
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case GenX86EVEX2VEXTables:
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EmitX86EVEX2VEXTables(Records, OS);
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break;
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}
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return false;
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}
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}
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int main(int argc, char **argv) {
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sys::PrintStackTraceOnErrorSignal(argv[0]);
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PrettyStackTraceProgram X(argc, argv);
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cl::ParseCommandLineOptions(argc, argv);
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llvm_shutdown_obj Y;
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return TableGenMain(argv[0], &LLVMTableGenMain);
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}
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#ifdef __has_feature
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#if __has_feature(address_sanitizer)
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#include <sanitizer/lsan_interface.h>
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// Disable LeakSanitizer for this binary as it has too many leaks that are not
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// very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h .
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int __lsan_is_turned_off() { return 1; }
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#endif // __has_feature(address_sanitizer)
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#endif // defined(__has_feature)
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