[Bug c++/14179] [8/9/10 Regression] out of memory while parsing array with many initializers

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14179

--- Comment #81 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:d2b9548f38c77edc29ab0e24e516f1fb341ecea7

commit r10-6387-gd2b9548f38c77edc29ab0e24e516f1fb341ecea7
Author: Jason Merrill <jason@redhat.com>
Date:   Thu Jan 30 18:49:29 2020 -0500

    c++: Reduce memory consumption for large static arrays.

    PR14179 and the C counterpart PR12245 are about memory consumption of very
    large file-scope arrays.  Recently, location wrappers increased memory
    consumption significantly: in an array of integer constants, each one will
    have a location wrapper, which added up to over 500MB in the 14179
    testcase.  For this kind of testcase tracking these locations isn't worth
    the cost, so this patch turns the wrappers off after 256 elements; any
array
    that size or larger isn't likely to be interested in the location of
    individual integer constants.

        PR c++/14179
        * parser.c (cp_parser_initializer_list): Suppress location wrappers
        after 256 elements.