[cfarm-users] GCC 8.2 UBsan and runtime error: signed integer overflow

[Jeffrey Walton]

On Tue, Nov 27, 2018 at 3:51 PM Jeffrey Walton <noloader at gmail.com> wrote:
>
> I've got some self tests failing on PowerPC with GCC 8.2. The program
> was compiled with -O1 and -fsanitize=undefined. The program uses
> Altivec. A sample finding is shown below.

I managed to get it reduced to a test case:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88234

Jeff