utils/TableGen/DAGISelMatcher.cpp

   1 //===- DAGISelMatcher.cpp - Representation of DAG pattern matcher ---------===//
   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 #include "DAGISelMatcher.h"
  11 #include "CodeGenDAGPatterns.h"
  12 #include "CodeGenTarget.h"
  13 #include "Record.h"
  14 #include "llvm/Support/raw_ostream.h"
  15 #include "llvm/ADT/StringExtras.h"
  16 using namespace llvm;
  17
  18 void Matcher::dump() const {
  19   print(errs(), 0);
  20 }
  21
  22 void Matcher::print(raw_ostream &OS, unsigned indent) const {
  23   printImpl(OS, indent);
  24   if (Next)
  25     return Next->print(OS, indent);
  26 }
  27
  28 ScopeMatcher::~ScopeMatcher() {
  29   for (unsigned i = 0, e = Children.size(); i != e; ++i)
  30     delete Children[i];
  31 }
  32
  33
  34 // printImpl methods.
  35
  36 void ScopeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  37   OS.indent(indent) << "Scope\n";
  38   for (unsigned i = 0, e = getNumChildren(); i != e; ++i)
  39     getChild(i)->print(OS, indent+2);
  40 }
  41
  42 void RecordMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  43   OS.indent(indent) << "Record\n";
  44 }
  45
  46 void RecordChildMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  47   OS.indent(indent) << "RecordChild: " << ChildNo << '\n';
  48 }
  49
  50 void RecordMemRefMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  51   OS.indent(indent) << "RecordMemRef\n";
  52 }
  53
  54 void CaptureFlagInputMatcher::printImpl(raw_ostream &OS, unsigned indent) const{
  55   OS.indent(indent) << "CaptureFlagInput\n";
  56 }
  57
  58 void MoveChildMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  59   OS.indent(indent) << "MoveChild " << ChildNo << '\n';
  60 }
  61
  62 void MoveParentMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  63   OS.indent(indent) << "MoveParent\n";
  64 }
  65
  66 void CheckSameMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  67   OS.indent(indent) << "CheckSame " << MatchNumber << '\n';
  68 }
  69
  70 void CheckPatternPredicateMatcher::
  71 printImpl(raw_ostream &OS, unsigned indent) const {
  72   OS.indent(indent) << "CheckPatternPredicate " << Predicate << '\n';
  73 }
  74
  75 void CheckPredicateMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  76   OS.indent(indent) << "CheckPredicate " << PredName << '\n';
  77 }
  78
  79 void CheckOpcodeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  80   OS.indent(indent) << "CheckOpcode " << OpcodeName << '\n';
  81 }
  82
  83 void CheckMultiOpcodeMatcher::printImpl(raw_ostream &OS, unsigned indent) const{
  84   OS.indent(indent) << "CheckMultiOpcode <todo args>\n";
  85 }
  86
  87 void CheckTypeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  88   OS.indent(indent) << "CheckType " << getEnumName(Type) << '\n';
  89 }
  90
  91 void CheckChildTypeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  92   OS.indent(indent) << "CheckChildType " << ChildNo << " "
  93     << getEnumName(Type) << '\n';
  94 }
  95
  96
  97 void CheckIntegerMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  98   OS.indent(indent) << "CheckInteger " << Value << '\n';
  99 }
 100
 101 void CheckCondCodeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 102   OS.indent(indent) << "CheckCondCode ISD::" << CondCodeName << '\n';
 103 }
 104
 105 void CheckValueTypeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 106   OS.indent(indent) << "CheckValueType MVT::" << TypeName << '\n';
 107 }
 108
 109 void CheckComplexPatMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 110   OS.indent(indent) << "CheckComplexPat " << Pattern.getSelectFunc() << '\n';
 111 }
 112
 113 void CheckAndImmMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 114   OS.indent(indent) << "CheckAndImm " << Value << '\n';
 115 }
 116
 117 void CheckOrImmMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 118   OS.indent(indent) << "CheckOrImm " << Value << '\n';
 119 }
 120
 121 void CheckFoldableChainNodeMatcher::printImpl(raw_ostream &OS,
 122                                               unsigned indent) const {
 123   OS.indent(indent) << "CheckFoldableChainNode\n";
 124 }
 125
 126 void CheckChainCompatibleMatcher::printImpl(raw_ostream &OS,
 127                                               unsigned indent) const {
 128   OS.indent(indent) << "CheckChainCompatible " << PreviousOp << "\n";
 129 }
 130
 131 void EmitIntegerMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 132   OS.indent(indent) << "EmitInteger " << Val << " VT=" << VT << '\n';
 133 }
 134
 135 void EmitStringIntegerMatcher::
 136 printImpl(raw_ostream &OS, unsigned indent) const {
 137   OS.indent(indent) << "EmitStringInteger " << Val << " VT=" << VT << '\n';
 138 }
 139
 140 void EmitRegisterMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 141   OS.indent(indent) << "EmitRegister ";
 142   if (Reg)
 143     OS << Reg->getName();
 144   else
 145     OS << "zero_reg";
 146   OS << " VT=" << VT << '\n';
 147 }
 148
 149 void EmitConvertToTargetMatcher::
 150 printImpl(raw_ostream &OS, unsigned indent) const {
 151   OS.indent(indent) << "EmitConvertToTarget " << Slot << '\n';
 152 }
 153
 154 void EmitMergeInputChainsMatcher::
 155 printImpl(raw_ostream &OS, unsigned indent) const {
 156   OS.indent(indent) << "EmitMergeInputChains <todo: args>\n";
 157 }
 158
 159 void EmitCopyToRegMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 160   OS.indent(indent) << "EmitCopyToReg <todo: args>\n";
 161 }
 162
 163 void EmitNodeXFormMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 164   OS.indent(indent) << "EmitNodeXForm " << NodeXForm->getName()
 165      << " Slot=" << Slot << '\n';
 166 }
 167
 168
 169 void EmitNodeMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 170   OS.indent(indent) << "EmitNode: " << OpcodeName << ": <todo flags> ";
 171
 172   for (unsigned i = 0, e = VTs.size(); i != e; ++i)
 173     OS << ' ' << getEnumName(VTs[i]);
 174   OS << '(';
 175   for (unsigned i = 0, e = Operands.size(); i != e; ++i)
 176     OS << Operands[i] << ' ';
 177   OS << ")\n";
 178 }
 179
 180 void MarkFlagResultsMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 181   OS.indent(indent) << "MarkFlagResults <todo: args>\n";
 182 }
 183
 184 void CompleteMatchMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
 185   OS.indent(indent) << "CompleteMatch <todo args>\n";
 186   OS.indent(indent) << "Src = " << *Pattern.getSrcPattern() << "\n";
 187   OS.indent(indent) << "Dst = " << *Pattern.getDstPattern() << "\n";
 188 }
 189
 190 // getHashImpl Implementation.
 191
 192 unsigned CheckPatternPredicateMatcher::getHashImpl() const {
 193   return HashString(Predicate);
 194 }
 195
 196 unsigned CheckPredicateMatcher::getHashImpl() const {
 197   return HashString(PredName);
 198 }
 199
 200 unsigned CheckOpcodeMatcher::getHashImpl() const {
 201   return HashString(OpcodeName);
 202 }
 203
 204 unsigned CheckMultiOpcodeMatcher::getHashImpl() const {
 205   unsigned Result = 0;
 206   for (unsigned i = 0, e = OpcodeNames.size(); i != e; ++i)
 207     Result |= HashString(OpcodeNames[i]);
 208   return Result;
 209 }
 210
 211 unsigned CheckCondCodeMatcher::getHashImpl() const {
 212   return HashString(CondCodeName);
 213 }
 214
 215 unsigned CheckValueTypeMatcher::getHashImpl() const {
 216   return HashString(TypeName);
 217 }
 218
 219 unsigned EmitStringIntegerMatcher::getHashImpl() const {
 220   return HashString(Val) ^ VT;
 221 }
 222
 223 template<typename It>
 224 static unsigned HashUnsigneds(It I, It E) {
 225   unsigned Result = 0;
 226   for (; I != E; ++I)
 227     Result = (Result<<3) ^ *I;
 228   return Result;
 229 }
 230
 231 unsigned EmitMergeInputChainsMatcher::getHashImpl() const {
 232   return HashUnsigneds(ChainNodes.begin(), ChainNodes.end());
 233 }
 234
 235 bool EmitNodeMatcher::isEqualImpl(const Matcher *m) const {
 236   const EmitNodeMatcher *M = cast<EmitNodeMatcher>(m);
 237   return M->OpcodeName == OpcodeName && M->VTs == VTs &&
 238          M->Operands == Operands && M->HasChain == HasChain &&
 239          M->HasFlag == HasFlag && M->HasMemRefs == HasMemRefs &&
 240          M->NumFixedArityOperands == NumFixedArityOperands;
 241 }
 242
 243 unsigned EmitNodeMatcher::getHashImpl() const {
 244   return (HashString(OpcodeName) << 4) | Operands.size();
 245 }
 246
 247
 248 unsigned MarkFlagResultsMatcher::getHashImpl() const {
 249   return HashUnsigneds(FlagResultNodes.begin(), FlagResultNodes.end());
 250 }
 251
 252 unsigned CompleteMatchMatcher::getHashImpl() const {
 253   return HashUnsigneds(Results.begin(), Results.end()) ^
 254           ((unsigned)(intptr_t)&Pattern << 8);
 255 }