[Bug 92621] [G965 ILK G45] Regression: 24 piglit regressions in glsl-1.10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92621

--- Comment #3 from Alejandro Piñeiro (freenode IRC: apinheiro) <apinheiro at igalia.com> ---
FWIW, the commit causing this problem is the following one:

commit a59359ecd22154cc2b3f88bb8c599f21af8a3934
Author: Alejandro Piñeiro <apinheiro at igalia.com>
Date:   Wed Oct 14 20:26:43 2015 +0200

    i965/vec4: track and use independently each flag channel

    vec4_live_variables tracks now each flag channel independently, so
    vec4_dead_code_eliminate can update the writemask of null registers,
    based on which component are alive at the moment. This would allow
    vec4_cmod_propagation to optimize out several movs involving null
    registers.

    v2: added support to track each flag channel independently at vec4
        live_variables, as v1 assumed that it was already doing it, as
        pointed by Francisco Jerez
    v3: general cleaningn after Matt Turner's review

    Reviewed-by: Matt Turner <mattst88 at gmail.com>

That was also the last one to be tested. 

Removing this commit remove the regressions. Will investigate a little this
one.

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