[Bug target/71318] Can't disable ISAs via function attribute

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71318

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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          Component|middle-end                  |target

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Look at the function init_optabs, it calls init_all_optabs.
init_tree_optimization_optabs will also call init_all_optabs too.

Maybe the problem is init_tree_optimization_optabs is called before
ix86_option_override_internal .