Hello, Thanks for you answer! I may put together a patch to crash if VEX.L is 1 (shouldn't be hard) and submit it to the patch list. Do you think it qualifies as "trivial patch" or should i go on with the full patch submission process?
On Thu, Jan 6, 2022 at 3:45 AM Richard Henderson < richard.hender...@linaro.org> wrote: > On 1/5/22 9:09 AM, Stevie Lavern wrote: > > Hello, > > I'm currently testing various binaries under qemu linux user and went > into a strange bug. > > > > Here is the TLDR: is there a reason to allow VEX.L to be 1 when not > supporting AVX > > instructions? > > There are some integer instructions that use vex encoding, e.g. andn, and > we support some > of those, thus any support for VEX at all. But you're probably correct > that we could > usefully filter VEX.L = 1 early. > > > r~ >
