qemu/target
Lucas Mateus Castro (alqotel) 611bc69bf6 target/ppc: Move V(ADD|SUB)CUW to decodetree and use gvec
This patch moves VADDCUW and VSUBCUW to decodtree with gvec using an
implementation based on the helper, with the main difference being
changing the -1 (aka all bits set to 1) result returned by cmp when
true to +1. It also implemented a .fni4 version of those instructions
and dropped the helper.

vaddcuw:
rept    loop    master             patch
8       12500   0,01008200         0,00612400 (-39.3%)
25      4000    0,01091500         0,00471600 (-56.8%)
100     1000    0,01332500         0,00593700 (-55.4%)
500     200     0,01998500         0,01275700 (-36.2%)
2500    40      0,04704300         0,04364300 (-7.2%)
8000    12      0,10748200         0,11241000 (+4.6%)

vsubcuw:
rept    loop    master             patch
8       12500   0,01226200         0,00571600 (-53.4%)
25      4000    0,01493500         0,00462100 (-69.1%)
100     1000    0,01522700         0,00455100 (-70.1%)
500     200     0,02384600         0,01133500 (-52.5%)
2500    40      0,04935200         0,03178100 (-35.6%)
8000    12      0,09039900         0,09440600 (+4.4%)

Overall there was a gain in performance, but the TCGop code was still
slightly bigger in the new version (it went from 4 to 5).

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-4-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28 13:15:22 -03:00
..
alpha target/alpha: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
arm target/arm: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
avr target/avr: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
cris target/cris: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
hexagon target/hexagon: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
hppa target/hppa: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
i386 Revert incorrect cflags initialization. 2022-10-26 10:53:41 -04:00
loongarch target/loongarch: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
m68k target/m68k: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
microblaze target/microblaze: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
mips target/mips: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
nios2 target/nios2: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
openrisc target/openrisc: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
ppc target/ppc: Move V(ADD|SUB)CUW to decodetree and use gvec 2022-10-28 13:15:22 -03:00
riscv Revert incorrect cflags initialization. 2022-10-26 10:53:41 -04:00
rx Revert incorrect cflags initialization. 2022-10-26 10:53:41 -04:00
s390x dump queue 2022-10-26 10:53:49 -04:00
sh4 target/sh4: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
sparc target/sparc: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
tricore target/tricore: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
xtensa target/xtensa: Convert to tcg_ops restore_state_to_opc 2022-10-26 11:11:28 +10:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
meson.build target/loongarch: Add target build suport 2022-06-06 18:09:03 +00:00