diff options
Diffstat (limited to 'llvm/utils/TableGen/TableGen.cpp')
| -rw-r--r-- | llvm/utils/TableGen/TableGen.cpp | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/TableGen.cpp b/llvm/utils/TableGen/TableGen.cpp new file mode 100644 index 000000000000..f730d91160ad --- /dev/null +++ b/llvm/utils/TableGen/TableGen.cpp @@ -0,0 +1,286 @@ +//===- 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, + GenGICombiner, + GenX86EVEX2VEXTables, + GenX86FoldTables, + GenRegisterBank, + GenExegesis, + GenAutomata, +}; + +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(GenGICombiner, "gen-global-isel-combiner", + "Generate GlobalISel combiner"), + 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"), + clEnumValN(GenAutomata, "gen-automata", + "Generate generic automata"))); + +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 GenGICombiner: + EmitGICombiner(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; + case GenAutomata: + EmitAutomata(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); +} + +#ifndef __has_feature +#define __has_feature(x) 0 +#endif + +#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) || \ + __has_feature(leak_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 |