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 #include "llvm/ADT/SmallVector.h"
17 #include "llvm/ADT/StringRef.h"
18 #include "llvm/IR/Instructions.h"
19 
20 using namespace llvm;
21 
~LogBuilder()22 LogBuilder::~LogBuilder() {
23   consumer.logf(*this);
24 }
25 
getFormat() const26 StringRef LogBuilder::getFormat() const { return Format; }
27 
getNumArguments() const28 unsigned LogBuilder::getNumArguments() const { return Arguments.size(); }
getArgument(unsigned I) const29 Value *LogBuilder::getArgument(unsigned I) const { return Arguments[I]; }
30 
~DiffLogBuilder()31 DiffLogBuilder::~DiffLogBuilder() { consumer.logd(*this); }
32 
addMatch(Instruction * L,Instruction * R)33 void DiffLogBuilder::addMatch(Instruction *L, Instruction *R) {
34   Diff.push_back(DiffRecord(L, R));
35 }
addLeft(Instruction * L)36 void DiffLogBuilder::addLeft(Instruction *L) {
37   // HACK: VS 2010 has a bug in the stdlib that requires this.
38   Diff.push_back(DiffRecord(L, DiffRecord::second_type(nullptr)));
39 }
addRight(Instruction * R)40 void DiffLogBuilder::addRight(Instruction *R) {
41   // HACK: VS 2010 has a bug in the stdlib that requires this.
42   Diff.push_back(DiffRecord(DiffRecord::first_type(nullptr), R));
43 }
44 
getNumLines() const45 unsigned DiffLogBuilder::getNumLines() const { return Diff.size(); }
46 
getLineKind(unsigned I) const47 DiffChange DiffLogBuilder::getLineKind(unsigned I) const {
48   return (Diff[I].first ? (Diff[I].second ? DC_match : DC_left)
49                         : DC_right);
50 }
getLeft(unsigned I) const51 Instruction *DiffLogBuilder::getLeft(unsigned I) const { return Diff[I].first; }
getRight(unsigned I) const52 Instruction *DiffLogBuilder::getRight(unsigned I) const { return Diff[I].second; }
53