[Bug c/29970] mixing ({...}) with VLA leads to massive breakage

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29970

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Uecker <uec...@gcc.gnu.org>:

https://gcc.gnu.org/g:d2ba65ab6010f0d507bf5512a0223692e6653b23

commit r12-2882-gd2ba65ab6010f0d507bf5512a0223692e6653b23
Author: Martin Uecker <muec...@gwdg.de>
Date:   Thu Aug 12 20:32:16 2021 +0200

    Evaluate type arguments of sizeof that are structs of variable size
[PR101838]

    Evaluate type arguments of sizeof for all types of variable size
    and not just for VLAs. This fixes PR101838 and some issues related
    to PR29970 where statement expressions need to be evaluated so that
    the size is well defined.

    2021-08-12  Martin Uecker  <muec...@gwdg.de>

    gcc/c/
            PR c/101838
            PR c/29970
            * c-typeck.c (c_expr_sizeof_type): Evaluate
            size expressions for structs of variable size.

    gcc/testsuite/
            PR c/101838
            * gcc.dg/vla-stexp-2.c: New test.