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