[Bug 99221] >2% perf drop in GfxBench T-Rex with "i965: disable loop unrolling in GLSL IR"

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Dec 30 09:31:57 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=99221

--- Comment #7 from Timothy Arceri <t_arceri at yahoo.com.au> ---
I've attached dumps from unrolling the loops with the different passes. It
doesn't look like there is any easy solution, both have the same instruction
count it looks like the result comes down to scheduling.

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