[Bug sanitizer/80168] [5/6/7 Regression] ICE in make_decl_rtl, at varasm.c:1311 w/ VLA and -fsanitize=address

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80168

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> I'm not sure this is valid given 'a' is global.

It is valid, VLA size is just an integral expression, and a is a valid
expression.  The size is computed at the point where the VLA is declared (we
remember there the size in some temporary if we need it later).