| //===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the main function for LLVM's TableGen. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "TableGenBackends.h" // Declares all backends. |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/ManagedStatic.h" |
| #include "llvm/Support/PrettyStackTrace.h" |
| #include "llvm/Support/Signals.h" |
| #include "llvm/TableGen/Main.h" |
| #include "llvm/TableGen/Record.h" |
| #include "llvm/TableGen/SetTheory.h" |
| |
| using namespace llvm; |
| |
| enum ActionType { |
| PrintRecords, |
| DumpJSON, |
| GenEmitter, |
| GenRegisterInfo, |
| GenInstrInfo, |
| GenInstrDocs, |
| GenAsmWriter, |
| GenAsmMatcher, |
| GenDisassembler, |
| GenPseudoLowering, |
| GenCompressInst, |
| GenCallingConv, |
| GenDAGISel, |
| GenDFAPacketizer, |
| GenFastISel, |
| GenSubtarget, |
| GenIntrinsicEnums, |
| GenIntrinsicImpl, |
| GenTgtIntrinsicEnums, |
| GenTgtIntrinsicImpl, |
| PrintEnums, |
| PrintSets, |
| GenOptParserDefs, |
| GenCTags, |
| GenAttributes, |
| GenSearchableTables, |
| GenGlobalISel, |
| GenX86EVEX2VEXTables, |
| GenX86FoldTables, |
| GenRegisterBank, |
| GenExegesis, |
| }; |
| |
| namespace llvm { |
| /// Storage for TimeRegionsOpt as a global so that backends aren't required to |
| /// include CommandLine.h |
| bool TimeRegions = false; |
| } // end namespace llvm |
| |
| namespace { |
| cl::opt<ActionType> |
| Action(cl::desc("Action to perform:"), |
| cl::values(clEnumValN(PrintRecords, "print-records", |
| "Print all records to stdout (default)"), |
| clEnumValN(DumpJSON, "dump-json", |
| "Dump all records as machine-readable JSON"), |
| clEnumValN(GenEmitter, "gen-emitter", |
| "Generate machine code emitter"), |
| clEnumValN(GenRegisterInfo, "gen-register-info", |
| "Generate registers and register classes info"), |
| clEnumValN(GenInstrInfo, "gen-instr-info", |
| "Generate instruction descriptions"), |
| clEnumValN(GenInstrDocs, "gen-instr-docs", |
| "Generate instruction documentation"), |
| clEnumValN(GenCallingConv, "gen-callingconv", |
| "Generate calling convention descriptions"), |
| clEnumValN(GenAsmWriter, "gen-asm-writer", |
| "Generate assembly writer"), |
| clEnumValN(GenDisassembler, "gen-disassembler", |
| "Generate disassembler"), |
| clEnumValN(GenPseudoLowering, "gen-pseudo-lowering", |
| "Generate pseudo instruction lowering"), |
| clEnumValN(GenCompressInst, "gen-compress-inst-emitter", |
| "Generate RISCV compressed instructions."), |
| clEnumValN(GenAsmMatcher, "gen-asm-matcher", |
| "Generate assembly instruction matcher"), |
| clEnumValN(GenDAGISel, "gen-dag-isel", |
| "Generate a DAG instruction selector"), |
| clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer", |
| "Generate DFA Packetizer for VLIW targets"), |
| clEnumValN(GenFastISel, "gen-fast-isel", |
| "Generate a \"fast\" instruction selector"), |
| clEnumValN(GenSubtarget, "gen-subtarget", |
| "Generate subtarget enumerations"), |
| clEnumValN(GenIntrinsicEnums, "gen-intrinsic-enums", |
| "Generate intrinsic enums"), |
| clEnumValN(GenIntrinsicImpl, "gen-intrinsic-impl", |
| "Generate intrinsic information"), |
| clEnumValN(GenTgtIntrinsicEnums, "gen-tgt-intrinsic-enums", |
| "Generate target intrinsic enums"), |
| clEnumValN(GenTgtIntrinsicImpl, "gen-tgt-intrinsic-impl", |
| "Generate target intrinsic information"), |
| clEnumValN(PrintEnums, "print-enums", |
| "Print enum values for a class"), |
| clEnumValN(PrintSets, "print-sets", |
| "Print expanded sets for testing DAG exprs"), |
| clEnumValN(GenOptParserDefs, "gen-opt-parser-defs", |
| "Generate option definitions"), |
| clEnumValN(GenCTags, "gen-ctags", |
| "Generate ctags-compatible index"), |
| clEnumValN(GenAttributes, "gen-attrs", |
| "Generate attributes"), |
| clEnumValN(GenSearchableTables, "gen-searchable-tables", |
| "Generate generic binary-searchable table"), |
| clEnumValN(GenGlobalISel, "gen-global-isel", |
| "Generate GlobalISel selector"), |
| clEnumValN(GenX86EVEX2VEXTables, "gen-x86-EVEX2VEX-tables", |
| "Generate X86 EVEX to VEX compress tables"), |
| clEnumValN(GenX86FoldTables, "gen-x86-fold-tables", |
| "Generate X86 fold tables"), |
| clEnumValN(GenRegisterBank, "gen-register-bank", |
| "Generate registers bank descriptions"), |
| clEnumValN(GenExegesis, "gen-exegesis", |
| "Generate llvm-exegesis tables"))); |
| |
| cl::OptionCategory PrintEnumsCat("Options for -print-enums"); |
| cl::opt<std::string> |
| Class("class", cl::desc("Print Enum list for this class"), |
| cl::value_desc("class name"), cl::cat(PrintEnumsCat)); |
| |
| cl::opt<bool, true> |
| TimeRegionsOpt("time-regions", |
| cl::desc("Time regions of tablegens execution"), |
| cl::location(TimeRegions)); |
| |
| bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) { |
| switch (Action) { |
| case PrintRecords: |
| OS << Records; // No argument, dump all contents |
| break; |
| case DumpJSON: |
| EmitJSON(Records, OS); |
| break; |
| case GenEmitter: |
| EmitCodeEmitter(Records, OS); |
| break; |
| case GenRegisterInfo: |
| EmitRegisterInfo(Records, OS); |
| break; |
| case GenInstrInfo: |
| EmitInstrInfo(Records, OS); |
| break; |
| case GenInstrDocs: |
| EmitInstrDocs(Records, OS); |
| break; |
| case GenCallingConv: |
| EmitCallingConv(Records, OS); |
| break; |
| case GenAsmWriter: |
| EmitAsmWriter(Records, OS); |
| break; |
| case GenAsmMatcher: |
| EmitAsmMatcher(Records, OS); |
| break; |
| case GenDisassembler: |
| EmitDisassembler(Records, OS); |
| break; |
| case GenPseudoLowering: |
| EmitPseudoLowering(Records, OS); |
| break; |
| case GenCompressInst: |
| EmitCompressInst(Records, OS); |
| break; |
| case GenDAGISel: |
| EmitDAGISel(Records, OS); |
| break; |
| case GenDFAPacketizer: |
| EmitDFAPacketizer(Records, OS); |
| break; |
| case GenFastISel: |
| EmitFastISel(Records, OS); |
| break; |
| case GenSubtarget: |
| EmitSubtarget(Records, OS); |
| break; |
| case GenIntrinsicEnums: |
| EmitIntrinsicEnums(Records, OS); |
| break; |
| case GenIntrinsicImpl: |
| EmitIntrinsicImpl(Records, OS); |
| break; |
| case GenTgtIntrinsicEnums: |
| EmitIntrinsicEnums(Records, OS, true); |
| break; |
| case GenTgtIntrinsicImpl: |
| EmitIntrinsicImpl(Records, OS, true); |
| break; |
| case GenOptParserDefs: |
| EmitOptParser(Records, OS); |
| break; |
| case PrintEnums: |
| { |
| for (Record *Rec : Records.getAllDerivedDefinitions(Class)) |
| OS << Rec->getName() << ", "; |
| OS << "\n"; |
| break; |
| } |
| case PrintSets: |
| { |
| SetTheory Sets; |
| Sets.addFieldExpander("Set", "Elements"); |
| for (Record *Rec : Records.getAllDerivedDefinitions("Set")) { |
| OS << Rec->getName() << " = ["; |
| const std::vector<Record*> *Elts = Sets.expand(Rec); |
| assert(Elts && "Couldn't expand Set instance"); |
| for (Record *Elt : *Elts) |
| OS << ' ' << Elt->getName(); |
| OS << " ]\n"; |
| } |
| break; |
| } |
| case GenCTags: |
| EmitCTags(Records, OS); |
| break; |
| case GenAttributes: |
| EmitAttributes(Records, OS); |
| break; |
| case GenSearchableTables: |
| EmitSearchableTables(Records, OS); |
| break; |
| case GenGlobalISel: |
| EmitGlobalISel(Records, OS); |
| break; |
| case GenRegisterBank: |
| EmitRegisterBank(Records, OS); |
| break; |
| case GenX86EVEX2VEXTables: |
| EmitX86EVEX2VEXTables(Records, OS); |
| break; |
| case GenX86FoldTables: |
| EmitX86FoldTables(Records, OS); |
| break; |
| case GenExegesis: |
| EmitExegesis(Records, OS); |
| break; |
| } |
| |
| return false; |
| } |
| } |
| |
| int main(int argc, char **argv) { |
| sys::PrintStackTraceOnErrorSignal(argv[0]); |
| PrettyStackTraceProgram X(argc, argv); |
| cl::ParseCommandLineOptions(argc, argv); |
| |
| llvm_shutdown_obj Y; |
| |
| return TableGenMain(argv[0], &LLVMTableGenMain); |
| } |
| |
| #ifdef __has_feature |
| #if __has_feature(address_sanitizer) |
| #include <sanitizer/lsan_interface.h> |
| // Disable LeakSanitizer for this binary as it has too many leaks that are not |
| // very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h . |
| LLVM_ATTRIBUTE_USED int __lsan_is_turned_off() { return 1; } |
| #endif // __has_feature(address_sanitizer) |
| #endif // defined(__has_feature) |
