[PIR] add printer hook

[kangguangli]

PR types

Function optimization

PR changes

Others

Description

The usage is as follows:

  pir::PrintHooks hooks;
  // this one retains old printing and adds new info
  hooks.value_print_hook = [](pir::Value v, pir::IrPrinter& printer) {
    printer.IrPrinter::PrintValue(v);
    printer.os << " [extra info]";
  };
  // this one overrides old printing
  hooks.op_print_hook = [](pir::Operation* op, pir::IrPrinter& printer) {
    printer.PrintOpResult(op);
    printer.os << " :=";

    printer.os << " \"" << op->name() << "\"";
    printer.PrintOpOperands(op);
    printer.PrintAttributeMap(op);
    printer.os << " :";
    printer.PrintOpReturnType(op);
    printer.os << "\n";
  };

  hooks.attribute_print_hook = [](pir::Attribute attr,
                                  pir::IrPrinter& printer) {
    printer.os << "[PlaceHolder]";
  };
  hooks.type_print_hook = [](pir::Type type, pir::IrPrinter& printer) {
    printer.os << "[" << type << "]";
  };

  std::cout << pir::CustomPrintHelper{program, hooks};

Others

Pcard-67164

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