virgl: don't move input gl_SampleMaskIn to a temp
The input is an array so moving it to a single temporary value doesn't seem to make much sense. I also don't see any piglit regressions when not moving the value to a temporary. Fixes: bc912bac virgl: Add workarounds for virglrenderer input/sv signedness bugs. v2: remove unused enum for SAMPLEMASK (Emma) Signed-off-by:Gert Wollny <gert.wollny@collabora.com> Acked-by:
Emma Anholt <emma@anholt.net> Part-of: <mesa/mesa!15997> (cherry picked from commit 89bba41d)