Similar for max(). Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com> --- src/compiler/nir/nir.h | 3 +++ src/compiler/nir/nir_opt_algebraic.py | 8 ++++++++ 2 files changed, 11 insertions(+)
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h index f6086bd6c0..04991b7d04 100644 --- a/src/compiler/nir/nir.h +++ b/src/compiler/nir/nir.h @@ -1897,6 +1897,9 @@ typedef struct nir_shader_compiler_options { /* lower b2f to iand */ bool lower_b2f; + /* lower min(min(a, b), c) to min3(a, b, c) (same for max()). */ + bool lower_minmax3; + /* Does the native fdot instruction replicate its result for four * components? If so, then opt_algebraic_late will turn all fdotN * instructions into fdot_replicatedN instructions. diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 909ea3daf4..1d67e2d88c 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -224,6 +224,14 @@ optimizations = [ (('imax', a, a), a), (('umin', a, a), a), (('umax', a, a), a), + + (('fmin', ('fmin', a, b), c), ('fmin3', a, b, c), 'options->lower_minmax3'), + (('imin', ('imin', a, b), c), ('imin3', a, b, c), 'options->lower_minmax3'), + (('umin', ('umin', a, b), c), ('umin3', a, b, c), 'options->lower_minmax3'), + (('fmax', ('fmax', a, b), c), ('fmax3', a, b, c), 'options->lower_minmax3'), + (('imax', ('imax', a, b), c), ('imax3', a, b, c), 'options->lower_minmax3'), + (('umax', ('umax', a, b), c), ('umax3', a, b, c), 'options->lower_minmax3'), + (('fmin', a, ('fneg', a)), ('fneg', ('fabs', a))), (('imin', a, ('ineg', a)), ('ineg', ('iabs', a))), (('fmin', a, ('fneg', ('fabs', a))), ('fneg', ('fabs', a))), -- 2.17.0 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev