Given a numeric type (integer or floating point), build an rvalue for
the given constant int value.
Given a numeric type (integer or floating point), build an rvalue for
the given constant long value.
Given a numeric type (integer or floating point), get the rvalue for zero. Essentially this is just a shortcut for:
ctxt.new_rvalue (numeric_type, 0)
Given a numeric type (integer or floating point), get the rvalue for one. Essentially this is just a shortcut for:
ctxt.new_rvalue (numeric_type, 1)
Given a numeric type (integer or floating point), build an rvalue for
the given constant double value.
Given a pointer type, build an rvalue for the given address.