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target/ppc: Move VABSDU[BHW] to decodetree and use gvec

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Moved VABSDUB, VABSDUH and VABSDUW to decodetree and use gvec to
translate them.

vabsdub:
rept    loop    master             patch
8       12500   0,03601600         0,00688500 (-80.9%)
25      4000    0,03651000         0,00532100 (-85.4%)
100     1000    0,03666900         0,00595300 (-83.8%)
500     200     0,04305800         0,01244600 (-71.1%)
2500    40      0,06893300         0,04273700 (-38.0%)
8000    12      0,14633200         0,12660300 (-13.5%)

vabsduh:
rept    loop    master             patch
8       12500   0,02172400         0,00687500 (-68.4%)
25      4000    0,02154100         0,00531500 (-75.3%)
100     1000    0,02235400         0,00596300 (-73.3%)
500     200     0,02827500         0,01245100 (-56.0%)
2500    40      0,05638400         0,04285500 (-24.0%)
8000    12      0,13166000         0,12641400 (-4.0%)

vabsduw:
rept    loop    master             patch
8       12500   0,01646400         0,00688300 (-58.2%)
25      4000    0,01454500         0,00475500 (-67.3%)
100     1000    0,01545800         0,00511800 (-66.9%)
500     200     0,02168200         0,01114300 (-48.6%)
2500    40      0,04571300         0,04138800 (-9.5%)
8000    12      0,12209500         0,12178500 (-0.3%)

Same as VADDCUW and VSUBCUW, overall performance gain but it uses more
TCGop (4 before the patch, 6 after).

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-8-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Lucas Mateus Castro (alqotel) 2022-10-19 09:50:35 -03:00 • committed by Daniel Henrique Barboza
parent c85929b2dd
commit 26c964f851
5 changed files with 60 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

6
target/ppc/insn32.decode
View file

@ -528,6 +528,12 @@ VAVGUB 000100 ..... ..... ..... 10000000010 @VX
VAVGUH 000100 ..... ..... ..... 10001000010 @VX
VAVGUW 000100 ..... ..... ..... 10010000010 @VX
## Vector Integer Absolute Difference Instructions
VABSDUB 000100 ..... ..... ..... 10000000011 @VX
VABSDUH 000100 ..... ..... ..... 10001000011 @VX
VABSDUW 000100 ..... ..... ..... 10010000011 @VX
## Vector Bit Manipulation Instruction
VGNB 000100 ..... -- ... ..... 10011001100 @VX_n