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freedreno/ir3: Disable sin/cos range reduction for mediump. 

robclark noted that the blob wasn't doing range reduction in the mediump
case, and I confirmed it on
dEQP-GLES3.functional.shaders.operator.angle_and_trigonometry.sin.mediump_float_fragment
vs
dEQP-GLES3.functional.shaders.operator.angle_and_trigonometry.sin.highp_float_fragment.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4893>
This commit is contained in:
Eric Anholt 2020-05-04 14:10:40 -07:00 committed by Marge Bot
parent aac964af4a
commit 9a6bbf4c80
1 changed files with 2 additions and 2 deletions
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4
src/freedreno/ir3/ir3_nir_trig.py
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@ -26,8 +26,8 @@ import argparse
import sys
trig_workarounds = [
(('fsin', 'x'), ('fsin', ('fsub', ('fmul', 6.2831853, ('ffract', ('fadd', ('fmul', 0.15915494, 'x'), 0.5))), 3.14159265))),
(('fcos', 'x'), ('fcos', ('fsub', ('fmul', 6.2831853, ('ffract', ('fadd', ('fmul', 0.15915494, 'x'), 0.5))), 3.14159265))),
(('fsin', 'x@32'), ('fsin', ('fsub', ('fmul', 6.2831853, ('ffract', ('fadd', ('fmul', 0.15915494, 'x'), 0.5))), 3.14159265))),
(('fcos', 'x@32'), ('fcos', ('fsub', ('fmul', 6.2831853, ('ffract', ('fadd', ('fmul', 0.15915494, 'x'), 0.5))), 3.14159265))),
]