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Merge commit '566b7a20fd0cab44d344329538d314454a0bcc2f' 

* commit '566b7a20fd0cab44d344329538d314454a0bcc2f':
  x86: float dsp: butterflies_float SSE

Conflicts:
	libavutil/x86/float_dsp.asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-03 11:57:59 +02:00
parent 550defe16e 566b7a20fd
commit e91339cde2
1 changed files with 17 additions and 15 deletions
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32
libavutil/x86/float_dsp.asm
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@ -268,21 +268,23 @@ cglobal scalarproduct_float, 3,3,2, v1, v2, offset
;-----------------------------------------------------------------------------
INIT_XMM sse
cglobal butterflies_float, 3,3,3, src0, src1, len
movsxdifnidn lenq, lend
test lenq, lenq
jz .end
shl lenq, 2
add src0q, lenq
add src1q, lenq
neg lenq
%if ARCH_X86_64
movsxd lenq, lend
%endif
test lenq, lenq
jz .end
shl lenq, 2
add src0q, lenq
add src1q, lenq
neg lenq
.loop:
mova m0, [src0q + lenq]
mova m1, [src1q + lenq]
subps m2, m0, m1
addps m0, m0, m1
mova [src1q + lenq], m2
mova [src0q + lenq], m0
add lenq, mmsize
jl .loop
mova m0, [src0q + lenq]
mova m1, [src1q + lenq]
subps m2, m0, m1
addps m0, m0, m1
mova [src1q + lenq], m2
mova [src0q + lenq], m0
add lenq, mmsize
jl .loop
.end:
REP_RET