mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
Change PatternCodeEmitter to emit code into a buffer instead of emitting it
directly to the output file. This makes things simple because the code doesn't have to worry about indentation or the case when there is no goto. It also allows us to indent the code better without touching everything :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25756 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
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c4013d6772
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@ -1830,8 +1830,7 @@ private:
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// Matched instruction.
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TreePatternNode *Instruction;
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unsigned PatternNo;
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bool GotosFail;
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std::ostream &OS;
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// Node to name mapping
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std::map<std::string, std::string> VariableMap;
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// Node to operator mapping
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@ -1839,16 +1838,30 @@ private:
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// Names of all the folded nodes which produce chains.
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std::vector<std::pair<std::string, unsigned> > FoldedChains;
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std::set<std::string> Duplicates;
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unsigned TmpNo;
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/// GeneratedCode - This is the buffer that we emit code to. The first bool
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/// indicates whether this is an exit predicate (something that should be
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/// tested, and if true, the match fails) [when true] or normal code to emit
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/// [when false].
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std::vector<std::pair<bool, std::string> > &GeneratedCode;
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unsigned TmpNo;
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void emitCheck(const std::string &S) {
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if (!S.empty())
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GeneratedCode.push_back(std::make_pair(true, S));
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}
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void emitCode(const std::string &S) {
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if (!S.empty())
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GeneratedCode.push_back(std::make_pair(false, S));
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}
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public:
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PatternCodeEmitter(DAGISelEmitter &ise, ListInit *preds,
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TreePatternNode *pattern, TreePatternNode *instr,
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unsigned PatNum, std::ostream &os) :
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ISE(ise), Predicates(preds), Pattern(pattern), Instruction(instr),
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PatternNo(PatNum), GotosFail(false), OS(os), TmpNo(0) {}
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bool UsesFailLabel() { return GotosFail; }
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unsigned PatNum,
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std::vector<std::pair<bool, std::string> > &gc)
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: ISE(ise), Predicates(preds), Pattern(pattern), Instruction(instr),
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PatternNo(PatNum), GeneratedCode(gc), TmpNo(0) {}
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/// EmitMatchCode - Emit a matcher for N, going to the label for PatternNo
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/// if the match fails. At this point, we already know that the opcode for N
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@ -1858,33 +1871,27 @@ public:
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// Emit instruction predicates. Each predicate is just a string for now.
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if (isRoot) {
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std::string PredicateCheck;
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for (unsigned i = 0, e = Predicates->getSize(); i != e; ++i) {
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if (DefInit *Pred = dynamic_cast<DefInit*>(Predicates->getElement(i))) {
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Record *Def = Pred->getDef();
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if (Def->isSubClassOf("Predicate")) {
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if (i == 0)
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OS << " if (";
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else
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OS << " && ";
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OS << "!(" << Def->getValueAsString("CondString") << ")";
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if (i == e-1) {
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OS << ") goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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}
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} else {
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if (!Def->isSubClassOf("Predicate")) {
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Def->dump();
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assert(0 && "Unknown predicate type!");
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}
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if (!PredicateCheck.empty())
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PredicateCheck += " && ";
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PredicateCheck += "!(" + Def->getValueAsString("CondString") + ")";
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}
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}
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emitCheck(PredicateCheck);
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}
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if (N->isLeaf()) {
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if (IntInit *II = dynamic_cast<IntInit*>(N->getLeafValue())) {
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OS << " if (cast<ConstantSDNode>(" << RootName
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<< ")->getSignExtended() != " << II->getValue() << ")\n"
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<< " goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck("cast<ConstantSDNode>(" + RootName +
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")->getSignExtended() != " + itostr(II->getValue()));
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return;
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} else if (!NodeIsComplexPattern(N)) {
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assert(0 && "Cannot match this as a leaf value!");
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@ -1903,9 +1910,7 @@ public:
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// we already have checked that the first reference is valid, we don't
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// have to recursively match it, just check that it's the same as the
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// previously named thing.
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OS << " if (" << VarMapEntry << " != " << RootName
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<< ") goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck(VarMapEntry + " != " + RootName);
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return;
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}
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@ -1925,35 +1930,27 @@ public:
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OpNo = 1;
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if (!isRoot) {
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const SDNodeInfo &CInfo = ISE.getSDNodeInfo(N->getOperator());
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OS << " if (!" << RootName << ".hasOneUse()) goto P"
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<< PatternNo << "Fail; // Multiple uses of actual result?\n";
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GotosFail = true;
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// Multiple uses of actual result?
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emitCheck("!" + RootName + ".hasOneUse()");
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EmittedUseCheck = true;
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// hasOneUse() check is not strong enough. If the original node has
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// already been selected, it may have been replaced with another.
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for (unsigned j = 0; j < CInfo.getNumResults(); j++) {
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OS << " if (CodeGenMap.count(" << RootName
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<< ".getValue(" << j << "))) goto P"
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<< PatternNo << "Fail; // Already selected?\n";
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GotosFail = true;
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}
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for (unsigned j = 0; j != CInfo.getNumResults(); j++)
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emitCheck("CodeGenMap.count(" + RootName + ".getValue(" + utostr(j) +
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"))");
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EmittedSlctedCheck = true;
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if (NodeHasChain) {
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OS << " if (CodeGenMap.count(" << RootName
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<< ".getValue(" << CInfo.getNumResults() << "))) goto P"
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<< PatternNo << "Fail; // Already selected for a chain use?\n";
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GotosFail = true;
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}
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if (NodeHasChain)
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emitCheck("CodeGenMap.count(" + RootName + ".getValue(" +
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utostr(CInfo.getNumResults()) + "))");
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}
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if (NodeHasChain) {
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if (!FoundChain) {
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OS << " SDOperand Chain = " << RootName << ".getOperand(0);\n";
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emitCode("SDOperand Chain = " + RootName + ".getOperand(0);");
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FoundChain = true;
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} else {
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OS << " if (Chain.Val == " << RootName << ".Val)\n";
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OS << " Chain = " << RootName << ".getOperand(0);\n";
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OS << " else\n";
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OS << " goto P" << PatternNo << "Fail;\n";
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emitCheck("Chain.Val != " + RootName + ".Val");
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emitCode("Chain = " + RootName + ".getOperand(0);");
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}
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}
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}
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@ -1968,37 +1965,31 @@ public:
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PatternHasProperty(N, SDNodeInfo::SDNPOutFlag, ISE))) {
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const SDNodeInfo &CInfo = ISE.getSDNodeInfo(N->getOperator());
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if (!EmittedUseCheck) {
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OS << " if (!" << RootName << ".hasOneUse()) goto P"
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<< PatternNo << "Fail; // Multiple uses of actual result?\n";
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GotosFail = true;
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// Multiple uses of actual result?
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emitCheck("!" + RootName + ".hasOneUse()");
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}
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if (!EmittedSlctedCheck)
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// hasOneUse() check is not strong enough. If the original node has
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// already been selected, it may have been replaced with another.
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for (unsigned j = 0; j < CInfo.getNumResults(); j++) {
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OS << " if (CodeGenMap.count(" << RootName
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<< ".getValue(" << j << "))) goto P"
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<< PatternNo << "Fail; // Already selected?\n";
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GotosFail = true;
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}
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for (unsigned j = 0; j < CInfo.getNumResults(); j++)
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emitCheck("CodeGenMap.count(" + RootName + ".getValue(" + utostr(j) +
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"))");
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}
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for (unsigned i = 0, e = N->getNumChildren(); i != e; ++i, ++OpNo) {
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OS << " SDOperand " << RootName << OpNo << " = "
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<< RootName << ".getOperand(" << OpNo << ");\n";
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emitCode("SDOperand " + RootName + utostr(OpNo) + " = " +
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RootName + ".getOperand(" +utostr(OpNo) + ");");
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TreePatternNode *Child = N->getChild(i);
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if (!Child->isLeaf()) {
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// If it's not a leaf, recursively match.
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const SDNodeInfo &CInfo = ISE.getSDNodeInfo(Child->getOperator());
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OS << " if (" << RootName << OpNo << ".getOpcode() != "
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<< CInfo.getEnumName() << ") goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck(RootName + utostr(OpNo) + ".getOpcode() != " +
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CInfo.getEnumName());
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EmitMatchCode(Child, RootName + utostr(OpNo), FoundChain);
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if (NodeHasProperty(Child, SDNodeInfo::SDNPHasChain, ISE)) {
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if (NodeHasProperty(Child, SDNodeInfo::SDNPHasChain, ISE))
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FoldedChains.push_back(std::make_pair(RootName + utostr(OpNo),
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CInfo.getNumResults()));
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}
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} else {
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// If this child has a name associated with it, capture it in VarMap. If
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// we already saw this in the pattern, emit code to verify dagness.
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@ -2011,9 +2002,7 @@ public:
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// Since we already have checked that the first reference is valid,
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// we don't have to recursively match it, just check that it's the
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// same as the previously named thing.
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OS << " if (" << VarMapEntry << " != " << RootName << OpNo
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<< ") goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck(VarMapEntry + " != " + RootName + utostr(OpNo));
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Duplicates.insert(RootName + utostr(OpNo));
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continue;
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}
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@ -2032,17 +2021,12 @@ public:
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// Place holder for SRCVALUE nodes. Nothing to do here.
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} else if (LeafRec->isSubClassOf("ValueType")) {
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// Make sure this is the specified value type.
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OS << " if (cast<VTSDNode>(" << RootName << OpNo
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<< ")->getVT() != "
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<< "MVT::" << LeafRec->getName() << ") goto P" << PatternNo
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<< "Fail;\n";
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GotosFail = true;
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emitCheck("cast<VTSDNode>(" + RootName + utostr(OpNo) +
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")->getVT() != MVT::" + LeafRec->getName());
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} else if (LeafRec->isSubClassOf("CondCode")) {
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// Make sure this is the specified cond code.
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OS << " if (cast<CondCodeSDNode>(" << RootName << OpNo
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<< ")->get() != " << "ISD::" << LeafRec->getName()
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<< ") goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck("cast<CondCodeSDNode>(" + RootName + utostr(OpNo) +
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")->get() != ISD::" + LeafRec->getName());
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} else {
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Child->dump();
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std::cerr << " ";
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@ -2050,12 +2034,9 @@ public:
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}
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} else if (IntInit *II =
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dynamic_cast<IntInit*>(Child->getLeafValue())) {
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OS << " if (!isa<ConstantSDNode>(" << RootName << OpNo
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<< ") ||\n"
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<< " cast<ConstantSDNode>(" << RootName << OpNo
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<< ")->getSignExtended() != " << II->getValue() << ")\n"
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<< " goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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emitCheck("!isa<ConstantSDNode>(" + RootName + utostr(OpNo) +
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") || cast<ConstantSDNode>(" + RootName + utostr(OpNo) +
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")->getSignExtended() != " + itostr(II->getValue()));
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} else {
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Child->dump();
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assert(0 && "Unknown leaf type!");
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@ -2064,11 +2045,8 @@ public:
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}
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// If there is a node predicate for this, emit the call.
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if (!N->getPredicateFn().empty()) {
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OS << " if (!" << N->getPredicateFn() << "(" << RootName
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<< ".Val)) goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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}
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if (!N->getPredicateFn().empty())
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emitCheck("!" + N->getPredicateFn() + "(" + RootName + ".Val)");
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}
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/// EmitResultCode - Emit the action for a pattern. Now that it has matched
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@ -2091,59 +2069,61 @@ public:
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unsigned NumRes = 1;
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if (!N->isLeaf() && N->getOperator()->getName() == "imm") {
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assert(N->getExtTypes().size() == 1 && "Multiple types not handled!");
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const char *Code;
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switch (N->getTypeNum(0)) {
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default: assert(0 && "Unknown type for constant node!");
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case MVT::i1: OS << " bool Tmp"; break;
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case MVT::i8: OS << " unsigned char Tmp"; break;
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case MVT::i16: OS << " unsigned short Tmp"; break;
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case MVT::i32: OS << " unsigned Tmp"; break;
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case MVT::i64: OS << " uint64_t Tmp"; break;
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default: assert(0 && "Unknown type for constant node!");
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case MVT::i1: Code = "bool Tmp"; break;
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case MVT::i8: Code = "unsigned char Tmp"; break;
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case MVT::i16: Code = "unsigned short Tmp"; break;
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case MVT::i32: Code = "unsigned Tmp"; break;
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case MVT::i64: Code = "uint64_t Tmp"; break;
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}
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OS << ResNo << "C = (unsigned)cast<ConstantSDNode>(" << Val
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<< ")->getValue();\n";
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OS << " SDOperand Tmp" << utostr(ResNo)
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<< " = CurDAG->getTargetConstant(Tmp"
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<< ResNo << "C, MVT::" << getEnumName(N->getTypeNum(0)) << ");\n";
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emitCode(Code + utostr(ResNo) + "C = (unsigned)cast<ConstantSDNode>(" +
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Val + ")->getValue();");
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emitCode("SDOperand Tmp" + utostr(ResNo) +
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" = CurDAG->getTargetConstant(Tmp" + utostr(ResNo) +
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"C, MVT::" + getEnumName(N->getTypeNum(0)) + ");");
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} else if (!N->isLeaf() && N->getOperator()->getName() == "texternalsym"){
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Record *Op = OperatorMap[N->getName()];
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// Transform ExternalSymbol to TargetExternalSymbol
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if (Op && Op->getName() == "externalsym") {
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OS << " SDOperand Tmp" << ResNo
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<< " = CurDAG->getTargetExternalSymbol(cast<ExternalSymbolSDNode>("
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<< Val << ")->getSymbol(), MVT::" << getEnumName(N->getTypeNum(0))
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<< ");\n";
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} else
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OS << " SDOperand Tmp" << ResNo << " = " << Val << ";\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = CurDAG->getTarget"
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"ExternalSymbol(cast<ExternalSymbolSDNode>(" +
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Val + ")->getSymbol(), MVT::" +
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getEnumName(N->getTypeNum(0)) + ");");
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} else {
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = " + Val + ";");
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}
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} else if (!N->isLeaf() && N->getOperator()->getName() == "tglobaladdr") {
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Record *Op = OperatorMap[N->getName()];
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// Transform GlobalAddress to TargetGlobalAddress
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if (Op && Op->getName() == "globaladdr") {
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OS << " SDOperand Tmp" << ResNo
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<< " = CurDAG->getTargetGlobalAddress(cast<GlobalAddressSDNode>("
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<< Val << ")->getGlobal(), MVT::" << getEnumName(N->getTypeNum(0))
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<< ");\n";
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} else
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OS << " SDOperand Tmp" << ResNo << " = " << Val << ";\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = CurDAG->getTarget"
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"GlobalAddress(cast<GlobalAddressSDNode>(" + Val +
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")->getGlobal(), MVT::" + getEnumName(N->getTypeNum(0)) +
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");");
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} else {
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = " + Val + ";");
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}
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} else if (!N->isLeaf() && N->getOperator()->getName() == "texternalsym"){
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OS << " SDOperand Tmp" << ResNo << " = " << Val << ";\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = " + Val + ";");
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} else if (!N->isLeaf() && N->getOperator()->getName() == "tconstpool") {
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OS << " SDOperand Tmp" << ResNo << " = " << Val << ";\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = " + Val + ";");
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} else if (N->isLeaf() && (CP = NodeGetComplexPattern(N, ISE))) {
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std::string Fn = CP->getSelectFunc();
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NumRes = CP->getNumOperands();
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OS << " SDOperand ";
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std::string Code = "SDOperand ";
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for (unsigned i = 0; i < NumRes - 1; ++i)
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OS << "Tmp" << (i+ResNo) << ",";
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OS << "Tmp" << (NumRes - 1 + ResNo) << ";\n";
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OS << " if (!" << Fn << "(" << Val;
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Code += "Tmp" + utostr(i+ResNo) + ", ";
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emitCode(Code + "Tmp" + utostr(NumRes - 1 + ResNo) + ";");
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Code = "!" + Fn + "(" + Val;
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for (unsigned i = 0; i < NumRes; i++)
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OS << ", Tmp" << i + ResNo;
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OS << ")) goto P" << PatternNo << "Fail;\n";
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GotosFail = true;
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Code += ", Tmp" + utostr(i + ResNo);
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emitCheck(Code + ")");
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TmpNo = ResNo + NumRes;
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} else {
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OS << " SDOperand Tmp" << ResNo << " = Select(" << Val << ");\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = Select(" + Val + ");");
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}
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// Add Tmp<ResNo> to VariableMap, so that we don't multiply select this
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// value if used multiple times by this pattern result.
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@ -2156,19 +2136,17 @@ public:
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if (DefInit *DI = dynamic_cast<DefInit*>(N->getLeafValue())) {
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unsigned ResNo = TmpNo++;
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if (DI->getDef()->isSubClassOf("Register")) {
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OS << " SDOperand Tmp" << ResNo << " = CurDAG->getRegister("
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<< ISE.getQualifiedName(DI->getDef()) << ", MVT::"
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<< getEnumName(N->getTypeNum(0))
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<< ");\n";
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emitCode("SDOperand Tmp" + utostr(ResNo) + " = CurDAG->getRegister(" +
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ISE.getQualifiedName(DI->getDef()) + ", MVT::" +
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getEnumName(N->getTypeNum(0)) + ");");
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return std::make_pair(1, ResNo);
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}
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} else if (IntInit *II = dynamic_cast<IntInit*>(N->getLeafValue())) {
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unsigned ResNo = TmpNo++;
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assert(N->getExtTypes().size() == 1 && "Multiple types not handled!");
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OS << " SDOperand Tmp" << ResNo << " = CurDAG->getTargetConstant("
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<< II->getValue() << ", MVT::"
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<< getEnumName(N->getTypeNum(0))
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<< ");\n";
|
||||
emitCode("SDOperand Tmp" + utostr(ResNo) +
|
||||
" = CurDAG->getTargetConstant(" + itostr(II->getValue()) +
|
||||
", MVT::" + getEnumName(N->getTypeNum(0)) + ");");
|
||||
return std::make_pair(1, ResNo);
|
||||
}
|
||||
|
||||
@ -2196,9 +2174,9 @@ public:
|
||||
(isRoot && PatternHasProperty(Pattern, SDNodeInfo::SDNPHasChain, ISE));
|
||||
|
||||
if (HasInFlag || NodeHasOutFlag || HasOptInFlag || HasImpInputs)
|
||||
OS << " SDOperand InFlag = SDOperand(0, 0);\n";
|
||||
emitCode("SDOperand InFlag = SDOperand(0, 0);");
|
||||
if (HasOptInFlag)
|
||||
OS << " bool HasOptInFlag = false;\n";
|
||||
emitCode("bool HasOptInFlag = false;");
|
||||
|
||||
// How many results is this pattern expected to produce?
|
||||
unsigned NumExpectedResults = 0;
|
||||
@ -2242,176 +2220,172 @@ public:
|
||||
// Emit all the chain and CopyToReg stuff.
|
||||
bool ChainEmitted = HasChain;
|
||||
if (HasChain)
|
||||
OS << " Chain = Select(Chain);\n";
|
||||
emitCode("Chain = Select(Chain);");
|
||||
if (HasInFlag || HasOptInFlag || HasImpInputs)
|
||||
EmitInFlagSelectCode(Pattern, "N", ChainEmitted, true);
|
||||
|
||||
unsigned NumResults = Inst.getNumResults();
|
||||
unsigned ResNo = TmpNo++;
|
||||
if (!isRoot) {
|
||||
OS << " SDOperand Tmp" << ResNo << " = CurDAG->getTargetNode("
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
std::string Code =
|
||||
"SDOperand Tmp" + utostr(ResNo) + " = CurDAG->getTargetNode(" +
|
||||
II.Namespace + "::" + II.TheDef->getName();
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
|
||||
unsigned LastOp = 0;
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i) {
|
||||
LastOp = Ops[i];
|
||||
OS << ", Tmp" << LastOp;
|
||||
Code += ", Tmp" + utostr(LastOp);
|
||||
}
|
||||
OS << ");\n";
|
||||
emitCode(Code + ");");
|
||||
if (HasChain) {
|
||||
// Must have at least one result
|
||||
OS << " Chain = Tmp" << LastOp << ".getValue("
|
||||
<< NumResults << ");\n";
|
||||
emitCode("Chain = Tmp" + utostr(LastOp) + ".getValue(" +
|
||||
utostr(NumResults) + ");");
|
||||
}
|
||||
} else if (HasChain || NodeHasOutFlag) {
|
||||
if (HasOptInFlag) {
|
||||
OS << " SDOperand Result = SDOperand(0, 0);\n";
|
||||
emitCode("SDOperand Result = SDOperand(0, 0);");
|
||||
unsigned FlagNo = (unsigned) NodeHasChain + Pattern->getNumChildren();
|
||||
OS << " if (HasOptInFlag)\n";
|
||||
OS << " Result = CurDAG->getTargetNode("
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
emitCode("if (HasOptInFlag)");
|
||||
std::string Code = " Result = CurDAG->getTargetNode(" +
|
||||
II.Namespace + "::" + II.TheDef->getName();
|
||||
|
||||
// Output order: results, chain, flags
|
||||
// Result types.
|
||||
if (NumResults > 0) {
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
}
|
||||
if (HasChain)
|
||||
OS << ", MVT::Other";
|
||||
Code += ", MVT::Other";
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
|
||||
// Inputs.
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i)
|
||||
OS << ", Tmp" << Ops[i];
|
||||
if (HasChain) OS << ", Chain";
|
||||
OS << ", InFlag);\n";
|
||||
Code += ", Tmp" + utostr(Ops[i]);
|
||||
if (HasChain) Code += ", Chain";
|
||||
emitCode(Code + ", InFlag);");
|
||||
|
||||
OS << " else\n";
|
||||
OS << " Result = CurDAG->getTargetNode("
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
emitCode("else");
|
||||
Code = " Result = CurDAG->getTargetNode(" + II.Namespace + "::" +
|
||||
II.TheDef->getName();
|
||||
|
||||
// Output order: results, chain, flags
|
||||
// Result types.
|
||||
if (NumResults > 0) {
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
}
|
||||
if (NumResults > 0 && N->getTypeNum(0) != MVT::isVoid)
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
if (HasChain)
|
||||
OS << ", MVT::Other";
|
||||
Code += ", MVT::Other";
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
|
||||
// Inputs.
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i)
|
||||
OS << ", Tmp" << Ops[i];
|
||||
if (HasChain) OS << ", Chain);\n";
|
||||
Code += ", Tmp" + utostr(Ops[i]);
|
||||
if (HasChain) Code += ", Chain);";
|
||||
emitCode(Code);
|
||||
} else {
|
||||
OS << " SDOperand Result = CurDAG->getTargetNode("
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
std::string Code = "SDOperand Result = CurDAG->getTargetNode(" +
|
||||
II.Namespace + "::" + II.TheDef->getName();
|
||||
|
||||
// Output order: results, chain, flags
|
||||
// Result types.
|
||||
if (NumResults > 0) {
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
}
|
||||
if (NumResults > 0 && N->getTypeNum(0) != MVT::isVoid)
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
if (HasChain)
|
||||
OS << ", MVT::Other";
|
||||
Code += ", MVT::Other";
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
|
||||
// Inputs.
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i)
|
||||
OS << ", Tmp" << Ops[i];
|
||||
if (HasChain) OS << ", Chain";
|
||||
if (HasInFlag || HasImpInputs) OS << ", InFlag";
|
||||
OS << ");\n";
|
||||
Code += ", Tmp" + utostr(Ops[i]);
|
||||
if (HasChain) Code += ", Chain";
|
||||
if (HasInFlag || HasImpInputs) Code += ", InFlag";
|
||||
emitCode(Code + ");");
|
||||
}
|
||||
|
||||
unsigned ValNo = 0;
|
||||
for (unsigned i = 0; i < NumResults; i++) {
|
||||
OS << " CodeGenMap[N.getValue(" << ValNo << ")] = Result"
|
||||
<< ".getValue(" << ValNo << ");\n";
|
||||
emitCode("CodeGenMap[N.getValue(" + utostr(ValNo) + ")] = Result"
|
||||
".getValue(" + utostr(ValNo) + ");");
|
||||
ValNo++;
|
||||
}
|
||||
|
||||
if (HasChain)
|
||||
OS << " Chain = Result.getValue(" << ValNo << ");\n";
|
||||
emitCode("Chain = Result.getValue(" + utostr(ValNo) + ");");
|
||||
|
||||
if (NodeHasOutFlag)
|
||||
OS << " InFlag = Result.getValue("
|
||||
<< ValNo + (unsigned)HasChain << ");\n";
|
||||
emitCode("InFlag = Result.getValue(" +
|
||||
utostr(ValNo + (unsigned)HasChain) + ");");
|
||||
|
||||
if (HasImpResults) {
|
||||
if (EmitCopyFromRegs(N, ChainEmitted)) {
|
||||
OS << " CodeGenMap[N.getValue(" << ValNo << ")] = "
|
||||
<< "Result.getValue(" << ValNo << ");\n";
|
||||
ValNo++;
|
||||
}
|
||||
if (HasImpResults && EmitCopyFromRegs(N, ChainEmitted)) {
|
||||
emitCode("CodeGenMap[N.getValue(" + utostr(ValNo) + ")] = "
|
||||
"Result.getValue(" + utostr(ValNo) + ");");
|
||||
ValNo++;
|
||||
}
|
||||
|
||||
// User does not expect that the instruction produces a chain!
|
||||
bool AddedChain = HasChain && !NodeHasChain;
|
||||
if (NodeHasChain)
|
||||
OS << " CodeGenMap[N.getValue(" << ValNo++ << ")] = Chain;\n";
|
||||
emitCode("CodeGenMap[N.getValue(" + utostr(ValNo++) + ")] = Chain;");
|
||||
|
||||
if (FoldedChains.size() > 0) {
|
||||
OS << " ";
|
||||
std::string Code;
|
||||
for (unsigned j = 0, e = FoldedChains.size(); j < e; j++)
|
||||
OS << "CodeGenMap[" << FoldedChains[j].first << ".getValue("
|
||||
<< FoldedChains[j].second << ")] = ";
|
||||
OS << "Chain;\n";
|
||||
Code += "CodeGenMap[" + FoldedChains[j].first + ".getValue(" +
|
||||
utostr(FoldedChains[j].second) + ")] = ";
|
||||
emitCode(Code + "Chain;");
|
||||
}
|
||||
|
||||
if (NodeHasOutFlag)
|
||||
OS << " CodeGenMap[N.getValue(" << ValNo << ")] = InFlag;\n";
|
||||
emitCode("CodeGenMap[N.getValue(" + utostr(ValNo) + ")] = InFlag;");
|
||||
|
||||
if (AddedChain && NodeHasOutFlag) {
|
||||
if (NumExpectedResults == 0) {
|
||||
OS << " return Result.getValue(N.ResNo+1);\n";
|
||||
emitCode("return Result.getValue(N.ResNo+1);");
|
||||
} else {
|
||||
OS << " if (N.ResNo < " << NumExpectedResults << ")\n";
|
||||
OS << " return Result.getValue(N.ResNo);\n";
|
||||
OS << " else\n";
|
||||
OS << " return Result.getValue(N.ResNo+1);\n";
|
||||
emitCode("if (N.ResNo < " + utostr(NumExpectedResults) + ")");
|
||||
emitCode(" return Result.getValue(N.ResNo);");
|
||||
emitCode("else");
|
||||
emitCode(" return Result.getValue(N.ResNo+1);");
|
||||
}
|
||||
} else {
|
||||
OS << " return Result.getValue(N.ResNo);\n";
|
||||
emitCode("return Result.getValue(N.ResNo);");
|
||||
}
|
||||
} else {
|
||||
// If this instruction is the root, and if there is only one use of it,
|
||||
// use SelectNodeTo instead of getTargetNode to avoid an allocation.
|
||||
OS << " if (N.Val->hasOneUse()) {\n";
|
||||
OS << " return CurDAG->SelectNodeTo(N.Val, "
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
emitCode("if (N.Val->hasOneUse()) {");
|
||||
std::string Code = " return CurDAG->SelectNodeTo(N.Val, " +
|
||||
II.Namespace + "::" + II.TheDef->getName();
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i)
|
||||
OS << ", Tmp" << Ops[i];
|
||||
Code += ", Tmp" + utostr(Ops[i]);
|
||||
if (HasInFlag || HasImpInputs)
|
||||
OS << ", InFlag";
|
||||
OS << ");\n";
|
||||
OS << " } else {\n";
|
||||
OS << " return CodeGenMap[N] = CurDAG->getTargetNode("
|
||||
<< II.Namespace << "::" << II.TheDef->getName();
|
||||
Code += ", InFlag";
|
||||
emitCode(Code + ");");
|
||||
emitCode("} else {");
|
||||
Code = " return CodeGenMap[N] = CurDAG->getTargetNode(" +
|
||||
II.Namespace + "::" + II.TheDef->getName();
|
||||
if (N->getTypeNum(0) != MVT::isVoid)
|
||||
OS << ", MVT::" << getEnumName(N->getTypeNum(0));
|
||||
Code += ", MVT::" + getEnumName(N->getTypeNum(0));
|
||||
if (NodeHasOutFlag)
|
||||
OS << ", MVT::Flag";
|
||||
Code += ", MVT::Flag";
|
||||
for (unsigned i = 0, e = Ops.size(); i != e; ++i)
|
||||
OS << ", Tmp" << Ops[i];
|
||||
Code += ", Tmp" + utostr(Ops[i]);
|
||||
if (HasInFlag || HasImpInputs)
|
||||
OS << ", InFlag";
|
||||
OS << ");\n";
|
||||
OS << " }\n";
|
||||
Code += ", InFlag";
|
||||
emitCode(Code + ");");
|
||||
emitCode("}");
|
||||
}
|
||||
|
||||
return std::make_pair(1, ResNo);
|
||||
@ -2419,11 +2393,11 @@ public:
|
||||
assert(N->getNumChildren() == 1 && "node xform should have one child!");
|
||||
unsigned OpVal = EmitResultCode(N->getChild(0)).second;
|
||||
unsigned ResNo = TmpNo++;
|
||||
OS << " SDOperand Tmp" << ResNo << " = Transform_" << Op->getName()
|
||||
<< "(Tmp" << OpVal << ".Val);\n";
|
||||
emitCode("SDOperand Tmp" + utostr(ResNo) + " = Transform_" + Op->getName()
|
||||
+ "(Tmp" + utostr(OpVal) + ".Val);");
|
||||
if (isRoot) {
|
||||
OS << " CodeGenMap[N] = Tmp" << ResNo << ";\n";
|
||||
OS << " return Tmp" << ResNo << ";\n";
|
||||
emitCode("CodeGenMap[N] = Tmp" +utostr(ResNo) + ";");
|
||||
emitCode("return Tmp" + utostr(ResNo) + ";");
|
||||
}
|
||||
return std::make_pair(1, ResNo);
|
||||
} else {
|
||||
@ -2443,9 +2417,8 @@ public:
|
||||
if (!Pat->hasTypeSet()) {
|
||||
// Move a type over from 'other' to 'pat'.
|
||||
Pat->setTypes(Other->getExtTypes());
|
||||
OS << " if (" << Prefix << ".Val->getValueType(0) != MVT::"
|
||||
<< getName(Pat->getTypeNum(0)) << ") goto P" << PatternNo << "Fail;\n";
|
||||
GotosFail = true;
|
||||
emitCheck(Prefix + ".Val->getValueType(0) != MVT::" +
|
||||
getName(Pat->getTypeNum(0)));
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -2485,22 +2458,21 @@ private:
|
||||
if (RR->isSubClassOf("Register")) {
|
||||
MVT::ValueType RVT = getRegisterValueType(RR, T);
|
||||
if (RVT == MVT::Flag) {
|
||||
OS << " InFlag = Select(" << RootName << OpNo << ");\n";
|
||||
emitCode("InFlag = Select(" + RootName + utostr(OpNo) + ");");
|
||||
} else {
|
||||
if (!ChainEmitted) {
|
||||
OS << " SDOperand Chain = CurDAG->getEntryNode();\n";
|
||||
emitCode("SDOperand Chain = CurDAG->getEntryNode();");
|
||||
ChainEmitted = true;
|
||||
}
|
||||
OS << " SDOperand " << RootName << "CR" << i << ";\n";
|
||||
OS << " " << RootName << "CR" << i
|
||||
<< " = CurDAG->getCopyToReg(Chain, CurDAG->getRegister("
|
||||
<< ISE.getQualifiedName(RR) << ", MVT::"
|
||||
<< getEnumName(RVT) << ")"
|
||||
<< ", Select(" << RootName << OpNo << "), InFlag);\n";
|
||||
OS << " Chain = " << RootName << "CR" << i
|
||||
<< ".getValue(0);\n";
|
||||
OS << " InFlag = " << RootName << "CR" << i
|
||||
<< ".getValue(1);\n";
|
||||
emitCode("SDOperand " + RootName + "CR" + utostr(i) + ";");
|
||||
emitCode(RootName + "CR" + utostr(i) +
|
||||
" = CurDAG->getCopyToReg(Chain, CurDAG->getRegister(" +
|
||||
ISE.getQualifiedName(RR) + ", MVT::" + getEnumName(RVT) +
|
||||
"), Select(" + RootName + utostr(OpNo) + "), InFlag);");
|
||||
emitCode("Chain = " + RootName + "CR" + utostr(i) +
|
||||
".getValue(0);");
|
||||
emitCode("InFlag = " + RootName + "CR" + utostr(i) +
|
||||
".getValue(1);");
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -2508,16 +2480,17 @@ private:
|
||||
}
|
||||
|
||||
if (HasInFlag || HasOptInFlag) {
|
||||
std::string Code;
|
||||
if (HasOptInFlag) {
|
||||
OS << " if (" << RootName << ".getNumOperands() == "
|
||||
<< OpNo+1 << ") {\n";
|
||||
OS << " ";
|
||||
emitCode("if (" + RootName + ".getNumOperands() == " + utostr(OpNo+1) +
|
||||
") {");
|
||||
Code = " ";
|
||||
}
|
||||
OS << " InFlag = Select(" << RootName << ".getOperand("
|
||||
<< OpNo << "));\n";
|
||||
emitCode(Code + "InFlag = Select(" + RootName + ".getOperand(" +
|
||||
utostr(OpNo) + "));");
|
||||
if (HasOptInFlag) {
|
||||
OS << " HasOptInFlag = true;\n";
|
||||
OS << " }\n";
|
||||
emitCode(" HasOptInFlag = true;");
|
||||
emitCode("}");
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -2539,14 +2512,14 @@ private:
|
||||
MVT::ValueType RVT = getRegisterValueType(RR, CGT);
|
||||
if (RVT != MVT::Flag) {
|
||||
if (!ChainEmitted) {
|
||||
OS << " SDOperand Chain = CurDAG->getEntryNode();\n";
|
||||
emitCode("SDOperand Chain = CurDAG->getEntryNode();");
|
||||
ChainEmitted = true;
|
||||
}
|
||||
OS << " Result = CurDAG->getCopyFromReg(Chain, "
|
||||
<< ISE.getQualifiedName(RR)
|
||||
<< ", MVT::" << getEnumName(RVT) << ", InFlag);\n";
|
||||
OS << " Chain = Result.getValue(1);\n";
|
||||
OS << " InFlag = Result.getValue(2);\n";
|
||||
emitCode("Result = CurDAG->getCopyFromReg(Chain, " +
|
||||
ISE.getQualifiedName(RR) + ", MVT::" + getEnumName(RVT) +
|
||||
", InFlag);");
|
||||
emitCode("Chain = Result.getValue(1);");
|
||||
emitCode("InFlag = Result.getValue(2);");
|
||||
RetVal = true;
|
||||
}
|
||||
}
|
||||
@ -2564,19 +2537,11 @@ bool DAGISelEmitter::EmitCodeForPattern(PatternToMatch &Pattern,
|
||||
std::ostream &OS) {
|
||||
static unsigned PatternCount = 0;
|
||||
unsigned PatternNo = PatternCount++;
|
||||
OS << " { // Pattern #" << PatternNo << ": ";
|
||||
Pattern.getSrcPattern()->print(OS);
|
||||
OS << "\n // Emits: ";
|
||||
Pattern.getDstPattern()->print(OS);
|
||||
OS << "\n";
|
||||
OS << " // Pattern complexity = "
|
||||
<< getPatternSize(Pattern.getSrcPattern(), *this)
|
||||
<< " cost = "
|
||||
<< getResultPatternCost(Pattern.getDstPattern()) << "\n";
|
||||
|
||||
std::vector<std::pair<bool, std::string> > GeneratedCode;
|
||||
PatternCodeEmitter Emitter(*this, Pattern.getPredicates(),
|
||||
Pattern.getSrcPattern(), Pattern.getDstPattern(),
|
||||
PatternNo, OS);
|
||||
PatternNo, GeneratedCode);
|
||||
|
||||
// Emit the matcher, capturing named arguments in VariableMap.
|
||||
bool FoundChain = false;
|
||||
@ -2623,12 +2588,35 @@ bool DAGISelEmitter::EmitCodeForPattern(PatternToMatch &Pattern,
|
||||
|
||||
delete Pat;
|
||||
|
||||
if (Emitter.UsesFailLabel())
|
||||
OS << " }\n P" << PatternNo << "Fail:\n";
|
||||
else
|
||||
OS << " }\n";
|
||||
|
||||
OS << " { // Pattern #" << PatternNo << ": ";
|
||||
Pattern.getSrcPattern()->print(OS);
|
||||
OS << "\n // Emits: ";
|
||||
Pattern.getDstPattern()->print(OS);
|
||||
OS << "\n";
|
||||
OS << " // Pattern complexity = "
|
||||
<< getPatternSize(Pattern.getSrcPattern(), *this)
|
||||
<< " cost = "
|
||||
<< getResultPatternCost(Pattern.getDstPattern()) << "\n";
|
||||
|
||||
// Actually output the generated code now.
|
||||
bool CanFail = false;
|
||||
for (unsigned i = 0, e = GeneratedCode.size(); i != e; ++i) {
|
||||
if (!GeneratedCode[i].first) {
|
||||
// Normal code.
|
||||
OS << " " << GeneratedCode[i].second << "\n";
|
||||
} else {
|
||||
OS << " if (" << GeneratedCode[i].second << ") goto P"
|
||||
<< PatternNo << "Fail;\n";
|
||||
CanFail = true;
|
||||
}
|
||||
}
|
||||
|
||||
OS << " }\n";
|
||||
if (CanFail)
|
||||
OS << "P" << PatternNo << "Fail:\n";
|
||||
|
||||
return Emitter.UsesFailLabel();
|
||||
return CanFail;
|
||||
}
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user