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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #1 from Timothy Arceri <t_arceri at yahoo.com.au> ---
Unfortunately I don't have access to these benchmarks so its a little hard to
know what caused the regressions.

It's possible Ken's copy propagation fix [1] could help. Or possibly the
Curro's upcoming work on the scheduler.

[1] https://patchwork.freedesktop.org/patch/127114/

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