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x86/aacpsdsp: optimize ff_ps_mul_pair_single_sse 

~2% faster.
This commit is contained in:
James Almer 2017-06-04 23:29:56 -03:00
parent caf7d6178a
commit 933dd62288
1 changed files with 12 additions and 9 deletions
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21
libavcodec/x86/aacpsdsp.asm
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@ -62,24 +62,27 @@ PS_ADD_SQUARES 3
; float *src1, int n);
;*******************************************************************
INIT_XMM sse
cglobal ps_mul_pair_single, 4, 5, 4, dst, src1, src2, n
xor r4q, r4q
cglobal ps_mul_pair_single, 4, 4, 4, dst, src1, src2, n
shl nd, 3
add src1q, nq
add dstq, nq
neg nq
align 16
.loop:
movu m0, [src1q+r4q]
movu m1, [src1q+r4q+mmsize]
movu m0, [src1q+nq]
movu m1, [src1q+nq+mmsize]
mova m2, [src2q]
mova m3, m2
unpcklps m2, m2
unpckhps m3, m3
mulps m0, m2
mulps m1, m3
mova [dstq+r4q], m0
mova [dstq+r4q+mmsize], m1
mova [dstq+nq], m0
mova [dstq+nq+mmsize], m1
add src2q, mmsize
add r4q, mmsize*2
sub nd, mmsize/4
jg .loop
add nq, mmsize*2
jl .loop
REP_RET
;***********************************************************************