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target/ppc: Move VPRTYB[WDQ] to decodetree and use gvec

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Moved VPRTYBW and VPRTYBD to use gvec and both of them and VPRTYBQ to
decodetree. VPRTYBW and VPRTYBD now also use .fni4 and .fni8,
respectively.

vprtybw:
rept    loop    master             patch
8       12500   0,01198900         0,00703100 (-41.4%)
25      4000    0,01070100         0,00571400 (-46.6%)
100     1000    0,01123300         0,00678200 (-39.6%)
500     200     0,01601500         0,01535600 (-4.1%)
2500    40      0,03872900         0,05562100 (43.6%)
8000    12      0,10047000         0,16643000 (65.7%)

vprtybd:
rept    loop    master             patch
8       12500   0,00757700         0,00788100 (4.0%)
25      4000    0,00652500         0,00669600 (2.6%)
100     1000    0,00714400         0,00825400 (15.5%)
500     200     0,01211000         0,01903700 (57.2%)
2500    40      0,03483800         0,07021200 (101.5%)
8000    12      0,09591800         0,21036200 (119.3%)

vprtybq:
rept    loop    master             patch
8       12500   0,00675600         0,00667200 (-1.2%)
25      4000    0,00619400         0,00643200 (3.8%)
100     1000    0,00707100         0,00751100 (6.2%)
500     200     0,01199300         0,01342000 (11.9%)
2500    40      0,03490900         0,04092900 (17.2%)
8000    12      0,09588200         0,11465100 (19.6%)

I wasn't expecting such a performance lost in both VPRTYBD and VPRTYBQ,
I'm not sure if it's worth to move those instructions. Comparing the
assembly of the helper with the TCGop they are pretty similar, so
I'm not sure why vprtybd took so much more time.

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-6-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 09:50:33 -03:00 • committed by Daniel Henrique Barboza
parent 90b5aadb09
commit d57fbd8fd9
5 changed files with 71 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

25
target/ppc/int_helper.c
View file

@ -492,31 +492,8 @@ static inline void set_vscr_sat(CPUPPCState *env)
env->vscr_sat.u32[0] = 1;
}
/* vprtybw */
void helper_vprtybw(ppc_avr_t *r, ppc_avr_t *b)
{
int i;
for (i = 0; i < ARRAY_SIZE(r->u32); i++) {
uint64_t res = b->u32[i] ^ (b->u32[i] >> 16);
res ^= res >> 8;
r->u32[i] = res & 1;
}
}
/* vprtybd */
void helper_vprtybd(ppc_avr_t *r, ppc_avr_t *b)
{
int i;
for (i = 0; i < ARRAY_SIZE(r->u64); i++) {
uint64_t res = b->u64[i] ^ (b->u64[i] >> 32);
res ^= res >> 16;
res ^= res >> 8;
r->u64[i] = res & 1;
}
}
/* vprtybq */
void helper_vprtybq(ppc_avr_t *r, ppc_avr_t *b)
void helper_VPRTYBQ(ppc_avr_t *r, ppc_avr_t *b, uint32_t v)
{
uint64_t res = b->u64[0] ^ b->u64[1];
res ^= res >> 32;