llvm/tools/llvm-diff/lib/DiffLog.cpp

   1 //===-- DiffLog.h - Difference Log Builder and accessories ------*- 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 header defines the interface to the LLVM difference log builder.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "DiffLog.h"
  14 #include "DiffConsumer.h"
  15 #include "llvm/ADT/StringRef.h"
  16
  17 using namespace llvm;
  18
  19 LogBuilder::~LogBuilder() {
  20   if (consumer)
  21     consumer->logf(*this);
  22 }
  23
  24 StringRef LogBuilder::getFormat() const { return Format; }
  25
  26 unsigned LogBuilder::getNumArguments() const { return Arguments.size(); }
  27 const Value *LogBuilder::getArgument(unsigned I) const { return Arguments[I]; }
  28
  29 DiffLogBuilder::~DiffLogBuilder() { consumer.logd(*this); }
  30
  31 void DiffLogBuilder::addMatch(const Instruction *L, const Instruction *R) {
  32   Diff.push_back(DiffRecord(L, R));
  33 }
  34 void DiffLogBuilder::addLeft(const Instruction *L) {
  35   // HACK: VS 2010 has a bug in the stdlib that requires this.
  36   Diff.push_back(DiffRecord(L, DiffRecord::second_type(nullptr)));
  37 }
  38 void DiffLogBuilder::addRight(const Instruction *R) {
  39   // HACK: VS 2010 has a bug in the stdlib that requires this.
  40   Diff.push_back(DiffRecord(DiffRecord::first_type(nullptr), R));
  41 }
  42
  43 unsigned DiffLogBuilder::getNumLines() const { return Diff.size(); }
  44
  45 DiffChange DiffLogBuilder::getLineKind(unsigned I) const {
  46   return (Diff[I].first ? (Diff[I].second ? DC_match : DC_left)
  47                         : DC_right);
  48 }
  49 const Instruction *DiffLogBuilder::getLeft(unsigned I) const {
  50   return Diff[I].first;
  51 }
  52 const Instruction *DiffLogBuilder::getRight(unsigned I) const {
  53   return Diff[I].second;
  54 }