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agx: make imad+ishl rules actually work

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total instructions in shared programs: 2750211 -> 2750184 (<.01%)
instructions in affected programs: 50499 -> 50472 (-0.05%)
helped: 27
HURT: 0
Instructions are helped.

total alu in shared programs: 2273669 -> 2273642 (<.01%)
alu in affected programs: 29874 -> 29847 (-0.09%)
helped: 27
HURT: 0
Alu are helped.

total fscib in shared programs: 2271986 -> 2271959 (<.01%)
fscib in affected programs: 29874 -> 29847 (-0.09%)
helped: 27
HURT: 0
Fscib are helped.

total bytes in shared programs: 21475184 -> 21474968 (<.01%)
bytes in affected programs: 371574 -> 371358 (-0.06%)
helped: 27
HURT: 0
Bytes are helped.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32081>
This commit is contained in:
Alyssa Rosenzweig
2024-11-04 14:03:10 -04:00
committed by Marge Bot
parent f737470736
commit ece3bd74db
1 changed files with 4 additions and 0 deletions
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src/asahi/compiler/agx_nir_algebraic.py
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@@ -176,6 +176,10 @@ for s in range(1, 5):
(imad(a, b, ('ishl(is_used_once)', c, s)), ('imadshl_agx', a, b, c, s)),
(imsub(a, b, ('ishl(is_used_once)', c, s)), ('imsubshl_agx', a, b, c, s)),
# The above but after the below shift lowering
(imad(a, b, ('imadshl_agx(is_used_once)', 0, 1, c, s)), ('imadshl_agx', a, b, c, s)),
(imsub(a, b, ('imadshl_agx(is_used_once)', 0, 1, c, s)), ('imsubshl_agx', a, b, c, s)),
# a + (a << s) = a + a * (1 << s) = a * (1 + (1 << s))
(('imul', a, 1 + (1 << s)), iaddshl(a, a, s)),