Eric Anholt <e...@anholt.net> writes: > Since LIFO fails on some shaders in one particular way, and non-LIFO > systematically fails in another way on different kinds of shaders, try > them both. and pick whichever one successfully register allocates first. > Slightly prefer non-LIFO in case we produce extra dependencies in register > allocation, since it should start out with fewer stalls than LIFO. > > This is madness, but I haven't come up with another way to get unigine > tropics to not spill while keeping other programs from not spilling and > retaining the non-unigine performance wins from texture-grf. > > total instructions in shared programs: 1626728 -> 1626288 (-0.03%) > instructions in affected programs: 1015 -> 575 (-43.35%) > GAINED: 50 > LOST: 0
Added to the commit message: Improves Unigine Tropics performance by 14.5257% +/- 0.241838% (n=38) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70445 Fixing register allocation after texture-grf was the thing I wanted to fix before release, and I think I'm finally there.
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