Module: Mesa Branch: master Commit: 8f37fc70669024040c954f8a74e9d7b209c867d7 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8f37fc70669024040c954f8a74e9d7b209c867d7
Author: Timothy Arceri <[email protected]> Date: Tue Jan 3 21:10:33 2017 +1100 nir: add imprecise flrp optimisation On BDW: total instructions in shared programs: 13061890 -> 13061877 (-0.00%) instructions in affected programs: 2441 -> 2428 (-0.53%) helped: 13 HURT: 0 total cycles in shared programs: 256612254 -> 256611784 (-0.00%) cycles in affected programs: 16418 -> 15948 (-2.86%) helped: 10 HURT: 2 V2: don't use ffma directly Reviewed-by: Jason Ekstrand <[email protected]> --- src/compiler/nir/nir_opt_algebraic.py | 1 + 1 file changed, 1 insertion(+) diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 85cdc7b..57e3862 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -112,6 +112,7 @@ optimizations = [ (('~flrp', a, a, b), a), (('~flrp', 0.0, a, b), ('fmul', a, b)), (('~flrp', a, b, ('b2f', c)), ('bcsel', c, b, a), 'options->lower_flrp32'), + (('~flrp', a, 0.0, c), ('fadd', ('fmul', ('fneg', a), c), a)), (('flrp@32', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp32'), (('flrp@64', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp64'), (('ffract', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract'), _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
