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pan/mdg: Reassociate adds for multiply-by-two
authorAlyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Fri, 12 Jun 2020 21:56:32 +0000 (17:56 -0400)
committerMarge Bot <eric+marge@anholt.net>
Wed, 17 Jun 2020 12:57:34 +0000 (12:57 +0000)
commit89c8393a1632720ed0dec82cb9529c5c487fb86d
treea962458e2f69e1e5ce2c254262cfac5890280dc0tree
parenta3348f88c8716c1dcc1f0fafb09004693d9f0786commit | diff
pan/mdg: Reassociate adds for multiply-by-two

Only a single shader-db change it looks like, and not even from
scheduling, no fun.

instructions helped:   shader31 MESA_SHADER_FRAGMENT:                    64 -> 63 (-1.56%)
quadwords helped:   shader31 MESA_SHADER_FRAGMENT:                    66 -> 65 (-1.52%)
registers HURT:   shader31 MESA_SHADER_FRAGMENT:                    2 -> 3 (50.00%)

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5475>
src/panfrost/midgard/midgard_nir_algebraic.py diff | blob | history