vm/c1/c1_LIR.hpp

301   OprType type_field_valid() const               { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
353     return (is_register() && opr->is_register() &&
362   bool is_register() const     { return is_cpu_register() || is_fpu_register(); }
399   bool is_single_word() const      { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
400   bool is_double_word() const      { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
401   bool is_virtual_register() const { assert(is_register(),               "type check"); return check_value_mask(virtual_mask, virtual_mask); }
402   bool is_oop_register() const     { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
403   BasicType type_register() const  { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid());  }
405   bool is_last_use() const         { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
406   bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
407   LIR_Opr make_last_use()          { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
408   LIR_Opr make_fpu_stack_offset()  { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
2349     if (opr->is_register()) {
2364           assert(address->_base->is_register(), "must be");
2369           assert(address->_index->is_register(), "must be");