In GAS, determine whether an expressionS is a constant ?

[Jan Beulich]

On 10.10.2019 09:16, William Tambe wrote:
> In the GAS codebase, is it possible to determine whether an
> expressionS is a constant ?
> 
> I would like to be able to determine whether parse_exp_save_ilb() has
> parsed a constant, and if it is a constant, extract its value from the
> expressionS.

->X_op would be set to O_constant in such a case. There are numerous
examples throughout the code base, so I have to admit I find the
question a little puzzling.

Jan