1 //===- SkeletonEmitter.cpp - Skeleton TableGen backend -*- C++ -*-===// 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 Tablegen backend emits ... 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/ADT/DenseMapInfo.h" 14 #include "llvm/ADT/StringRef.h" 15 #include "llvm/TableGen/TableGenBackend.h" 16 17 #define DEBUG_TYPE "skeleton-emitter" 18 19 namespace llvm { 20 class RecordKeeper; 21 class raw_ostream; 22 } // namespace llvm 23 24 using namespace llvm; 25 26 namespace { 27 28 // Any helper data structures can be defined here. Some backends use 29 // structs to collect information from the records. 30 31 class SkeletonEmitter { 32 private: 33 RecordKeeper &Records; 34 35 public: 36 SkeletonEmitter(RecordKeeper &RK) : Records(RK) {} 37 38 void run(raw_ostream &OS); 39 }; // emitter class 40 41 } // anonymous namespace 42 43 void SkeletonEmitter::run(raw_ostream &OS) { 44 emitSourceFileHeader("Skeleton data structures", OS); 45 46 (void)Records; // To suppress unused variable warning; remove on use. 47 } 48 49 namespace llvm { 50 51 // The only thing that should be in the llvm namespace is the 52 // emitter entry point function. 53 54 void EmitSkeleton(RecordKeeper &RK, raw_ostream &OS) { 55 // Instantiate the emitter class and invoke run(). 56 SkeletonEmitter(RK).run(OS); 57 } 58 59 } // namespace llvm 60