tools/llvm-diff/DiffLog.cpp

   1 //===-- DiffLog.h - Difference Log Builder and accessories ------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This header defines the interface to the LLVM difference log builder.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "DiffLog.h"
  15 #include "DiffConsumer.h"
  16
  17 #include "llvm/Instructions.h"
  18 #include "llvm/ADT/SmallVector.h"
  19 #include "llvm/ADT/StringRef.h"
  20
  21 using namespace llvm;
  22
  23 LogBuilder::~LogBuilder() {
  24   consumer.logf(*this);
  25 }
  26
  27 StringRef LogBuilder::getFormat() const { return Format; }
  28
  29 unsigned LogBuilder::getNumArguments() const { return Arguments.size(); }
  30 Value *LogBuilder::getArgument(unsigned I) const { return Arguments[I]; }
  31
  32 DiffLogBuilder::~DiffLogBuilder() { consumer.logd(*this); }
  33
  34 void DiffLogBuilder::addMatch(Instruction *L, Instruction *R) {
  35   Diff.push_back(DiffRecord(L, R));
  36 }
  37 void DiffLogBuilder::addLeft(Instruction *L) {
  38   // HACK: VS 2010 has a bug in the stdlib that requires this.
  39   Diff.push_back(DiffRecord(L, DiffRecord::second_type(0)));
  40 }
  41 void DiffLogBuilder::addRight(Instruction *R) {
  42   // HACK: VS 2010 has a bug in the stdlib that requires this.
  43   Diff.push_back(DiffRecord(DiffRecord::first_type(0), R));
  44 }
  45
  46 unsigned DiffLogBuilder::getNumLines() const { return Diff.size(); }
  47
  48 DiffChange DiffLogBuilder::getLineKind(unsigned I) const {
  49   return (Diff[I].first ? (Diff[I].second ? DC_match : DC_left)
  50                         : DC_right);
  51 }
  52 Instruction *DiffLogBuilder::getLeft(unsigned I) const { return Diff[I].first; }
  53 Instruction *DiffLogBuilder::getRight(unsigned I) const { return Diff[I].second; }