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      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; }
     54