[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 #15 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Yes, with that, the float loop is unrolled and PSPom perf regression is fixed.

This:
SIMD16 shader: 156 instructions. 2 loops. 6802 cycles. 0:0 spills:fills.
Promoted 4 constants. Compacted 2496 to 1552 bytes (38%)
Changed to:
SIMD16 shader: 197 instructions. 1 loops. 5924 cycles. 0:0 spills:fills.
Promoted 17 constants. Compacted 3152 to 2176 bytes (31%)

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