Tested Mesa commit:
c2a0600d5b0645533ba442b5ab879b23c2564a4d: "i965: Don't set NirOptions for stages that will use the vec4 backend."
Testing a Mesa update on ChromeOS, the following dEQP tests fail on BYT:
"Image comparison failed: difference = 450.979, threshold = 0.05"
These tests pass on HSW, BDW and BSW, and passed on BYT with an older Mesa commit (November 18, 2014: 129178893b2260df22db96327c5ca9c2ce7db046 "glsl: Generate unique names for each const array lowered to uniforms" + ~10 patches)
Please assign i965 bugs to Component: Drivers/DRI/i965.
maybe related to bug #91114, at least lod calculation there seems broken
I believe this was fixed by commit
Author: Kenneth Graunke <email@example.com>
Date: Mon Mar 28 20:07:13 2016 -0700
i965: Don't use CUBE wrap modes for integer formats on IVB/BYT.
Please reopen if it is not.