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Subject: [Bug analyzer/93388] ensure -fanalyzer works with our C code
Date: Wed, 14 Oct 2020 20:39:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D93388

--- Comment #23 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by David Malcolm <dmalcolm@gcc.gnu.org>:

https://gcc.gnu.org/g:61a43de58cb6de7212a622060500ad0a0fd94fae

commit r11-3896-g61a43de58cb6de7212a622060500ad0a0fd94fae
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Tue Oct 13 18:49:11 2020 -0400

    analyzer: fix ICE on globals with unknown size [PR93388]

    This patch fixes an ICE seen when attempting to build various existing
    tests in our testsuite with -fanalyzer, including
    gcc.c-torture/compile/980816-1.c.

    gcc/analyzer/ChangeLog:
            PR analyzer/93388
            * region-model.cc (region_model::get_initial_value_for_global):
            Fall back to returning an initial_svalue if
            decl_region::get_svalue_for_initializer fails.
            * region.cc (decl_region::get_svalue_for_initializer): Don't
            attempt to create a compound_svalue if the region has an unknown
            size.

    gcc/testsuite/ChangeLog:
            PR analyzer/93388
            * gcc.dg/analyzer/data-model-21.c: New test.=