[Bug 81157] [BDW]Piglit some spec_glsl-1.50_execution_built-in-functions* cases fail

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jul 15 10:14:52 PDT 2014


--- Comment #5 from Matt Turner <mattst88 at gmail.com> ---
I don't know what the absolute value source modifier does on logic
instructions, but it doesn't seem to give the absolute value of a negative
argument. It doesn't appear to touch positive arguments though.

Not sure how I can investigate further, without being able to create an aub

I suspect we should just disable copy propagation of (abs) arguments into
logical instructions on Broadwell.

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