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freedreno/ir3: add rule to generate imad24

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Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
This commit is contained in:
Rob Clark 2019-09-27 11:36:43 -07:00
parent 5e08f070f0
commit 666b6236f7
1 changed files with 5 additions and 0 deletions
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5
src/freedreno/ir3/ir3_nir_imul.py
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@ -27,6 +27,11 @@ import sys
imul_lowering = [
(('imul', 'a@32', 'b@32'), ('imadsh_mix16', 'b', 'a', ('imadsh_mix16', 'a', 'b', ('umul_low', 'a', 'b')))),
# We want to run the imad24 rule late so that it doesn't fight
# with constant folding the (imul24, a, b). Since this pass is
# run late, and this is kinda imul related, this seems like a
# good place for it:
(('iadd', ('imul24', 'a', 'b'), 'c'), ('imad24_ir3', 'a', 'b', 'c')),
]