1//===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains the main function for LLVM's TableGen.
10//
11//===----------------------------------------------------------------------===//
12
13#include "llvm/ADT/StringRef.h"
14#include "llvm/Support/CommandLine.h"
15#include "llvm/Support/InitLLVM.h"
16#include "llvm/Support/raw_ostream.h"
17#include "llvm/TableGen/Main.h"
18#include "llvm/TableGen/Record.h"
19#include "llvm/TableGen/SetTheory.h"
20#include "llvm/TableGen/TableGenBackend.h"
21#include <cassert>
22#include <string>
23#include <vector>
24
25using namespace llvm;
26
27namespace llvm {
28cl::opt<bool> EmitLongStrLiterals(
29 "long-string-literals",
30 cl::desc("when emitting large string tables, prefer string literals over "
31 "comma-separated char literals. This can be a readability and "
32 "compile-time performance win, but upsets some compilers"),
33 cl::Hidden, cl::init(Val: true));
34} // end namespace llvm
35
36namespace {
37
38cl::OptionCategory PrintEnumsCat("Options for -print-enums");
39cl::opt<std::string> Class("class", cl::desc("Print Enum list for this class"),
40 cl::value_desc("class name"),
41 cl::cat(PrintEnumsCat));
42
43void PrintRecords(RecordKeeper &Records, raw_ostream &OS) {
44 OS << Records; // No argument, dump all contents
45}
46
47void PrintEnums(RecordKeeper &Records, raw_ostream &OS) {
48 for (Record *Rec : Records.getAllDerivedDefinitions(ClassName: Class))
49 OS << Rec->getName() << ", ";
50 OS << "\n";
51}
52
53void PrintSets(RecordKeeper &Records, raw_ostream &OS) {
54 SetTheory Sets;
55 Sets.addFieldExpander(ClassName: "Set", FieldName: "Elements");
56 for (Record *Rec : Records.getAllDerivedDefinitions(ClassName: "Set")) {
57 OS << Rec->getName() << " = [";
58 const std::vector<Record *> *Elts = Sets.expand(Set: Rec);
59 assert(Elts && "Couldn't expand Set instance");
60 for (Record *Elt : *Elts)
61 OS << ' ' << Elt->getName();
62 OS << " ]\n";
63 }
64}
65
66TableGen::Emitter::Opt X[] = {
67 {"print-records", PrintRecords, "Print all records to stdout (default)",
68 true},
69 {"print-detailed-records", EmitDetailedRecords,
70 "Print full details of all records to stdout"},
71 {"null-backend", [](RecordKeeper &Records, raw_ostream &OS) {},
72 "Do nothing after parsing (useful for timing)"},
73 {"dump-json", EmitJSON, "Dump all records as machine-readable JSON"},
74 {"print-enums", PrintEnums, "Print enum values for a class"},
75 {"print-sets", PrintSets, "Print expanded sets for testing DAG exprs"},
76};
77
78} // namespace
79
80int main(int argc, char **argv) {
81 InitLLVM X(argc, argv);
82 cl::ParseCommandLineOptions(argc, argv);
83
84 return TableGenMain(argv0: argv[0]);
85}
86
87#ifndef __has_feature
88#define __has_feature(x) 0
89#endif
90
91#if __has_feature(address_sanitizer) || \
92 (defined(__SANITIZE_ADDRESS__) && defined(__GNUC__)) || \
93 __has_feature(leak_sanitizer)
94
95#include <sanitizer/lsan_interface.h>
96// Disable LeakSanitizer for this binary as it has too many leaks that are not
97// very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h .
98LLVM_ATTRIBUTE_USED int __lsan_is_turned_off() { return 1; }
99
100#endif
101

source code of llvm/utils/TableGen/TableGen.cpp