[Bug sanitizer/79993] [5/6/7 Regression] ICE in tree_to_uhwi, at tree.c:7344

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79993

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #4)
> Created attachment 41072 [details]
> gcc7-pr79993.patch
> 
> So, one option is to revert to the 4.8 and earlier behavior, disallow any
> VLA initialization (like C does).  This patch should do it.

I've been ambivalent about this.  I think it makes sense, but given the number
of testcases that hit the change, the functionality seems to be fairly popular.