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x86/dcadsp: optimize lfe_fir0_float_fma3 on x86_32

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About 10% faster.

Signed-off-by: James Almer <jamrial@gmail.com>
pull/224/head
James Almer 8 years ago
parent d915b6e592
commit 645489cf90
1 changed files with 31 additions and 12 deletions
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  1. 43
      libavcodec/x86/dcadsp.asm

43
libavcodec/x86/dcadsp.asm
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@ -24,7 +24,7 @@
SECTION .text
%define sizeof_float 4
%define FMA3_OFFSET (8 * cpuflag(fma3) * ARCH_X86_64)
%define FMA3_OFFSET (8 * cpuflag(fma3))
%macro LFE_FIR0_FLOAT 0
cglobal lfe_fir0_float, 4, 6, 12 + cpuflag(fma3)*4, samples, lfe, coeff, nblocks, cnt1, cnt2
@ -101,11 +101,19 @@ cglobal lfe_fir0_float, 4, 6, 12 + cpuflag(fma3)*4, samples, lfe, coeff, nblocks
%endif
%else ; ARCH_X86_32
%if cpuflag(fma3)
mulps m0, m7, [coeffq+cnt1q*8 ]
movaps m1, [coeffq+cnt1q*8+16]
mulps m2, m7, [coeffq+cnt1q*8+32]
fmaddps m0, m6, m1, m0
fmaddps m2, m6, [coeffq+cnt1q*8+48], m2
mulps m0, m7, [coeffq+cnt1q*8 ]
mulps m1, m7, [coeffq+cnt1q*8+32 ]
mulps m2, m7, [coeffq+cnt1q*8+64 ]
mulps m3, m7, [coeffq+cnt1q*8+96 ]
fmaddps m0, m6, [coeffq+cnt1q*8+16 ], m0
fmaddps m1, m6, [coeffq+cnt1q*8+48 ], m1
fmaddps m2, m6, [coeffq+cnt1q*8+80 ], m2
fmaddps m3, m6, [coeffq+cnt1q*8+112], m3
haddps m0, m1
haddps m2, m3
haddps m0, m2
movaps [samplesq+cnt1q], m0
%else
mulps m0, m7, [coeffq+cnt1q*8 ]
mulps m1, m6, [coeffq+cnt1q*8+16]
@ -113,13 +121,14 @@ cglobal lfe_fir0_float, 4, 6, 12 + cpuflag(fma3)*4, samples, lfe, coeff, nblocks
mulps m3, m6, [coeffq+cnt1q*8+48]
addps m0, m1
addps m2, m3
%endif
unpckhps m3, m0, m2
unpcklps m0, m2
addps m3, m0
movhlps m2, m3
addps m2, m3
movlps [samplesq+cnt1q], m2
%endif
%endif; ARCH
%if ARCH_X86_64
@ -154,10 +163,19 @@ cglobal lfe_fir0_float, 4, 6, 12 + cpuflag(fma3)*4, samples, lfe, coeff, nblocks
%endif
%else ; ARCH_X86_32
%if cpuflag(fma3)
mulps m0, m5, [coeffq+cnt1q*8 ]
mulps m2, m5, [coeffq+cnt1q*8+32]
fmaddps m0, m4, m1, m0
fmaddps m2, m4, [coeffq+cnt1q*8+48], m2
mulps m0, m5, [coeffq+cnt1q*8 ]
mulps m1, m5, [coeffq+cnt1q*8+32 ]
mulps m2, m5, [coeffq+cnt1q*8+64 ]
mulps m3, m5, [coeffq+cnt1q*8+96 ]
fmaddps m0, m4, [coeffq+cnt1q*8+16 ], m0
fmaddps m1, m4, [coeffq+cnt1q*8+48 ], m1
fmaddps m2, m4, [coeffq+cnt1q*8+80 ], m2
fmaddps m3, m4, [coeffq+cnt1q*8+112], m3
haddps m1, m0
haddps m3, m2
haddps m3, m1
movaps [samplesq+cnt2q], m3
%else
mulps m0, m5, [coeffq+cnt1q*8 ]
mulps m1, m4, [coeffq+cnt1q*8+16]
@ -165,13 +183,14 @@ cglobal lfe_fir0_float, 4, 6, 12 + cpuflag(fma3)*4, samples, lfe, coeff, nblocks
mulps m3, m4, [coeffq+cnt1q*8+48]
addps m0, m1
addps m2, m3
%endif
unpckhps m3, m2, m0
unpcklps m2, m0
addps m3, m2
movhlps m0, m3
addps m0, m3
movlps [samplesq+cnt2q], m0
%endif
%endif; ARCH
sub cnt2d, 8 + FMA3_OFFSET

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