[Bug 109759] [BISECTED][REGRESSION][IVB, HSW] Font rendering problem in OpenGL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109759

--- Comment #8 from Ian Romanick <idr at freedesktop.org> ---
An earlier patch in that series 440c0513406 "i965/vec4/dce: Don't narrow the
write mask if the flags are used" fixed some things related to swizzles and
compares.  It's possible that didn't fix all the problems.  It's also possible
that there are latent problems in cmod propagation.  I would first try
disabling cmod propagation.  If that fixes the problem, comparing the before &
after shader assembly should make the problem obvious.  The fix may not be so
obvious. :)

As a side note... someone should capture the shaders from this app and put them
in the public shader-db.

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