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Subject: [Bug lto/99849] [8/9/10/11 Regression] ICE in expand_expr_real_1, at
 expr.c:11556 since r5-5407-g30d5d8c5189064c8
Date: Sat, 10 Apr 2021 10:49:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99849

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:22aede7a1228617661105048a91fddd8797e141b

commit r11-8108-g22aede7a1228617661105048a91fddd8797e141b
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Sat Apr 10 12:49:01 2021 +0200

    expand: Fix up LTO ICE with COMPOUND_LITERAL_EXPR [PR99849]

    The gimplifier optimizes away COMPOUND_LITERAL_EXPRs, but they can rema=
in
    in the form of ADDR_EXPR of COMPOUND_LITERAL_EXPRs in static initialize=
rs.
    By the TREE_STATIC check I meant to check that the underlying decl of
    the compound literal is a global rather than automatic variable which
    obviously can't be referenced in static initializers, but unfortunately
    with LTO it might end up in another partition and thus be DECL_EXTERNAL
    instead.

    2021-04-10  Jakub Jelinek  <jakub@redhat.com>

            PR lto/99849
            * expr.c (expand_expr_addr_expr_1): Test is_global_var rather t=
han
            just TREE_STATIC on COMPOUND_LITERAL_EXPR_DECLs.

            * gcc.dg/lto/pr99849_0.c: New test.=