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pan/mdg: Allow f2u8 and friends thru

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Now that we can handle destination sizes directly, this keeps us from
needing to chew through so many conversions.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5285>
This commit is contained in:
Alyssa Rosenzweig 2020-05-25 14:46:53 -04:00 • committed by Marge Bot
parent 0ae0141f5b
commit 293d37e19d
1 changed files with 3 additions and 3 deletions
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6
src/panfrost/midgard/midgard_nir_algebraic.py
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@ -68,7 +68,8 @@ algebraic_late = [
# Midgard is able to type convert down by only one "step" per instruction; if
# NIR wants more than one step, we need to break up into multiple instructions
# NIR wants more than one step, we need to break up into multiple instructions.
# Nevertheless, we can do both a size step and a floating/int step at once.
converts = []
@ -85,8 +86,7 @@ for op in ('u2u', 'i2i', 'f2f', 'i2f', 'u2f', 'f2i', 'f2u'):
while srcsz <= srcsz_max:
# Size converter lowering is only needed if src and dst sizes are
# spaced by a factor > 2.
# Type converter lowering is needed as soon as src_size != dst_size
if srcsz != dstsz and ((srcsz * 2 != dstsz and srcsz != dstsz * 2) or op[0] != op[2]):
if srcsz != dstsz and (srcsz * 2 != dstsz and srcsz != dstsz * 2):
cursz = srcsz
rule = a
# When converting down we first do the type conversion followed