1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
//===- TableGenBackendSkeleton.cpp - Skeleton TableGen backend --*- C++ -*-===//
//
// 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 Tablegen backend emits ...
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "llvm/TableGen/TableGenBackend.h"
#define DEBUG_TYPE "skeleton-emitter"
namespace llvm {
class RecordKeeper;
class raw_ostream;
} // namespace llvm
using namespace llvm;
namespace {
// Any helper data structures can be defined here. Some backends use
// structs to collect information from the records.
class SkeletonEmitter {
private:
const RecordKeeper &Records;
public:
SkeletonEmitter(const RecordKeeper &RK) : Records(RK) {}
void run(raw_ostream &OS);
}; // emitter class
} // anonymous namespace
void SkeletonEmitter::run(raw_ostream &OS) {
emitSourceFileHeader("Skeleton data structures", OS);
(void)Records; // To suppress unused variable warning; remove on use.
}
// Choose either option A or B.
//===----------------------------------------------------------------------===//
// Option A: Register the backed as class <SkeletonEmitter>
static TableGen::Emitter::OptClass<SkeletonEmitter>
X("gen-skeleton-class", "Generate example skeleton class");
//===----------------------------------------------------------------------===//
// Option B: Register "EmitSkeleton" directly
// The emitter entry may be private scope.
static void EmitSkeleton(const RecordKeeper &RK, raw_ostream &OS) {
// Instantiate the emitter class and invoke run().
SkeletonEmitter(RK).run(OS);
}
static TableGen::Emitter::Opt Y("gen-skeleton-entry", EmitSkeleton,
"Generate example skeleton entry");
|
