Hi Richard,
> Please file a bugreport so this issue doesn't get lost.
I was struggling to reproduce it on a recent toolchain, but I managed to take
one of the gcc test cases and recreate it I think. I submitted
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117383
Thanks,
Anton
On Thu, Oct 31, 2024 at 3:55 AM Anton Blanchard via Gcc wrote:
>
> Hi,
>
> I think gcc is relying on undefined behaviour with the vcompress instruction.
> Unfortunately my test case isn't reproducing on mainline, but gcc looks to
> use the fields between the last mask selected field and vl while s
> Hi,
>
> I think gcc is relying on undefined behaviour with the vcompress instruction.
> Unfortunately my test case isn't reproducing on mainline, but gcc looks to
> use the fields between the last mask selected field and vl while setting
> tail agnostic.
>
> This thread explains how vcompress is
