diff options
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 09eaeaf3f23..8fcf0a1cbff 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -186,6 +186,16 @@ optimizations = [ # If x > 1: 1 - fsat(x) => 1 - 1 => 0 and fsat(1 - x) => fsat(< 0) => 0 (('~fadd', ('fneg(is_used_once)', ('fsat(is_used_once)', 'a(is_not_fmul)')), 1.0), ('fsat', ('fadd', 1.0, ('fneg', a)))), + # 1 - ((1 - a) * (1 - b)) + # 1 - (1 - a - b + a*b) + # 1 - 1 + a + b - a*b + # a + b - a*b + # a + b*(1 - a) + # b*(1 - a) + 1*a + # flrp(b, 1, a) + (('~fadd@32', 1.0, ('fneg', ('fmul', ('fadd', 1.0, ('fneg', a)), ('fadd', 1.0, ('fneg', b))))), + ('flrp', b, 1.0, a), '!options->lower_flrp32'), + # (a * #b + #c) << #d # ((a * #b) << #d) + (#c << #d) # (a * (#b << #d)) + (#c << #d) |