本文整理汇总了C++中Pattern::getArg方法的典型用法代码示例。如果您正苦于以下问题：C++ Pattern::getArg方法的具体用法？C++ Pattern::getArg怎么用？C++ Pattern::getArg使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Pattern的用法示例。
在下文中一共展示了Pattern::getArg方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Test__PatternBuilder__SimpleArg
void Test__PatternBuilder__SimpleArg() {
Pattern pattern;
PatternBuilder(pattern).arg("arg");
size_t pos = 0;
const Argument &argByPos = pattern.getArg(pos);
const Argument &argByName = pattern.getArg("arg");
ASSERT(&argByPos == &argByName);
ASSERT_EQ(pos, argByPos.getPos());
ASSERT(argByPos.hasName("arg"));
ASSERT(!argByPos.hasDefault());
}示例2: run
//.........这里部分代码省略.........
// Print out the pattern that matched...
DEBUG(OS << " std::cerr << \" " << P->getRecord()->getName() <<'"');
DEBUG(for (unsigned i = 0, e = Operands.size(); i != e; ++i)
if (Operands[i].first->isLeaf()) {
Record *RV = Operands[i].first->getValueRecord();
assert(RV->isSubClassOf("RegisterClass") &&
"Only handles registers here so far!");
OS << " << \" %reg\" << " << Operands[i].second
<< "->Val";
} else {
OS << " << ' ' << " << Operands[i].second
<< "->Val";
});
DEBUG(OS << " << \"\\n\";\n");
// Generate the reduction code appropriate to the particular type of
// pattern that this is...
switch (P->getPatternType()) {
case Pattern::Instruction:
// Instruction patterns just emit a single MachineInstr, using BuildMI
OS << " BuildMI(MBB, " << Target.getName() << "::"
<< P->getRecord()->getName() << ", " << Operands.size();
if (P->getResult()) OS << ", NewReg";
OS << ")";
for (unsigned i = 0, e = Operands.size(); i != e; ++i) {
TreePatternNode *Op = Operands[i].first;
if (Op->isLeaf()) {
Record *RV = Op->getValueRecord();
assert(RV->isSubClassOf("RegisterClass") &&
"Only handles registers here so far!");
OS << ".addReg(" << Operands[i].second << "->Val)";
} else if (Op->getOperator()->getName() == "imm") {
OS << ".addZImm(" << Operands[i].second << "->Val)";
} else if (Op->getOperator()->getName() == "basicblock") {
OS << ".addMBB(" << Operands[i].second << "->Val)";
} else {
assert(0 && "Unknown value type!");
}
}
OS << ";\n";
break;
case Pattern::Expander: {
// Expander patterns emit one machine instr for each instruction in
// the list of instructions expanded to.
ListInit *Insts = P->getRecord()->getValueAsListInit("Result");
for (unsigned IN = 0, e = Insts->getSize(); IN != e; ++IN) {
DagInit *DIInst = dynamic_cast<DagInit*>(Insts->getElement(IN));
if (!DIInst) P->error("Result list must contain instructions!");
Record *InstRec = DIInst->getNodeType();
Pattern *InstPat = getPattern(InstRec);
if (!InstPat || InstPat->getPatternType() != Pattern::Instruction)
P->error("Instruction list must contain Instruction patterns!");
bool hasResult = InstPat->getResult() != 0;
if (InstPat->getNumArgs() != DIInst->getNumArgs()-hasResult) {
P->error("Incorrect number of arguments specified for inst '" +
InstPat->getRecord()->getName() + "' in result list!");
}
// Start emission of the instruction...
OS << " BuildMI(MBB, " << Target.getName() << "::"
<< InstRec->getName() << ", "
<< DIInst->getNumArgs()-hasResult;
// Emit register result if necessary..
if (hasResult) {
std::string ArgNameVal =
getArgName(P, DIInst->getArgName(0), Operands);
PrintExpanderOperand(DIInst->getArg(0), ArgNameVal,
InstPat->getResultNode(), P, false,
OS << ", ");
}
OS << ")";
for (unsigned i = hasResult, e = DIInst->getNumArgs(); i != e; ++i){
std::string ArgNameVal =
getArgName(P, DIInst->getArgName(i), Operands);
PrintExpanderOperand(DIInst->getArg(i), ArgNameVal,
InstPat->getArg(i-hasResult), P, true, OS);
}
OS << ";\n";
}
break;
}
default:
assert(0 && "Reduction of this type of pattern not implemented!");
}
OS << " Val = new ReducedValue_" << SlotName << "(" << Result<<");\n"
<< " break;\n"
<< " }\n";
}
OS << " default: assert(0 && \"Unknown " << SlotName << " pattern!\");\n"
<< " }\n\n N->addValue(Val); // Do not ever recalculate this\n"
<< " return Val;\n}\n\n";
}