| //===- TableGenBackend.cpp - Utilities for TableGen Backends ----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file provides useful services for TableGen backends... |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/Twine.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include "llvm/TableGen/TableGenBackend.h" |
| using namespace llvm; |
| |
| static void printLine(raw_ostream &OS, const Twine &Prefix, char Fill, |
| StringRef Suffix) { |
| uint64_t Pos = OS.tell(); |
| OS << Prefix; |
| for (unsigned i = OS.tell() - Pos, e = 80 - Suffix.size(); i != e; ++i) |
| OS << Fill; |
| OS << Suffix << '\n'; |
| } |
| |
| void llvm::emitSourceFileHeader(StringRef Desc, raw_ostream &OS) { |
| printLine(OS, "/*===- TableGen'erated file ", '-', "*- C++ -*-===*\\"); |
| printLine(OS, "|*", ' ', "*|"); |
| printLine(OS, "|* " + Desc, ' ', "*|"); |
| printLine(OS, "|*", ' ', "*|"); |
| printLine(OS, "|* Automatically generated file, do not edit!", ' ', "*|"); |
| printLine(OS, "|*", ' ', "*|"); |
| printLine(OS, "\\*===", '-', "===*/"); |
| OS << '\n'; |
| } |