2e50bf19cd
With that simple comparisons are cleaned up properly.
This helps with some tesselation shaders on r600.
Shader-db stats R600/Cayman:
--------------------------------------------------------------
total dw in shared programs: 1621806 -> 1620884 (-0.06%)
dw in affected programs: 41650 -> 40728 (-2.21%)
helped: 211
HURT: 4
helped stats (abs) min: 2 max: 26 x̄: 4.46 x̃: 4
helped stats (rel) min: 0.30% max: 9.68% x̄: 2.87% x̃: 2.52%
HURT stats (abs) min: 2 max: 8 x̄: 5.00 x̃: 5
HURT stats (rel) min: 0.23% max: 1.67% x̄: 1.02% x̃: 1.09%
95% mean confidence interval for dw value: -4.81 -3.77
95% mean confidence interval for dw %-change: -3.03% -2.57%
Dw are helped.
total gprs in shared programs: 41192 -> 41182 (-0.02%)
gprs in affected programs: 731 -> 721 (-1.37%)
helped: 53
HURT: 45
helped stats (abs) min: 1 max: 3 x̄: 1.23 x̃: 1
helped stats (rel) min: 5.88% max: 40.00% x̄: 16.56% x̃: 14.29%
HURT stats (abs) min: 1 max: 2 x̄: 1.22 x̃: 1
HURT stats (rel) min: 7.69% max: 40.00% x̄: 19.42% x̃: 20.00%
95% mean confidence interval for gprs value: -0.37 0.16
95% mean confidence interval for gprs %-change: -3.92% 3.85%
Inconclusive result (value mean confidence interval includes 0).
total alu_groups in shared programs: 203677 -> 203632 (-0.02%)
alu_groups in affected programs: 2876 -> 2831 (-1.56%)
helped: 68
HURT: 30
helped stats (abs) min: 1 max: 4 x̄: 1.46 x̃: 1
helped stats (rel) min: 0.84% max: 25.00% x̄: 7.48% x̃: 5.41%
HURT stats (abs) min: 1 max: 6 x̄: 1.80 x̃: 1
HURT stats (rel) min: 1.98% max: 33.33% x̄: 10.09% x̃: 5.61%
95% mean confidence interval for alu_groups value: -0.81 -0.11
95% mean confidence interval for alu_groups %-change: -4.20% <.01%
Alu_groups are helped.
total loops in shared programs: 72 -> 72 (0.00%)
loops in affected programs: 0 -> 0
helped: 0
HURT: 0
total cf in shared programs: 88230 -> 88233 (<.01%)
cf in affected programs: 71 -> 74 (4.23%)
helped: 1
HURT: 4
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 33.33% max: 33.33% x̄: 33.33% x̃: 33.33%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 1.89% max: 33.33% x̄: 17.14% x̃: 16.67%
95% mean confidence interval for cf value: -0.51 1.71
95% mean confidence interval for cf %-change: -24.20% 38.29%
Inconclusive result (value mean confidence interval includes 0).
total stack in shared programs: 3827 -> 3827 (0.00%)
stack in affected programs: 0 -> 0
helped: 0
HURT: 0
LOST: 0
GAINED: 0
Total CPU time (seconds): 45.32 -> 41.69 (-8.01%)
--------------------------------------------------------------
v2: Simplify replacement pattern (Rhys Perry)
v3: fix ws (Alexander Orzechowski)
v4: move the original lowering to opt_late_algebraic and
drop cleanup code (Alyssa)
v5: Add shader-sb stats (Alyssa)
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18970>
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