[Bug preprocessor/93306] Unnecessary file I/O done for #if 0 && __has_include(...)

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93306

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathan Sidwell <nathan@gcc.gnu.org>:

https://gcc.gnu.org/g:bf09d886a4be1031f7003073115af6cbc5575353

commit r10-6040-gbf09d886a4be1031f7003073115af6cbc5575353
Author: Nathan Sidwell <nathan@acm.org>
Date:   Fri Jan 17 05:39:47 2020 -0800

    [PR93306] Short-circuit has_include

    the preprocessor evaluator has a skip_eval counter, but we weren't
    checking it after parsing has_include(foo), but before looking for
    foo.  Resulting in unnecessary io for 'FALSE_COND && has_include <foo>'

        PR preprocessor/93306
        * expr.c (parse_has_include): Refactor.  Check skip_eval before
        looking.