[Ffmpeg-cvslog] r6023 - in trunk/libavcodec: fft.c i386/fft_3dn.c i386/fft_3dn2.c i386/fft_sse.c
lorenm
subversion
Sat Aug 19 01:53:50 CEST 2006
Author: lorenm
Date: Sat Aug 19 01:53:49 2006
New Revision: 6023
Modified:
trunk/libavcodec/fft.c
trunk/libavcodec/i386/fft_3dn.c
trunk/libavcodec/i386/fft_3dn2.c
trunk/libavcodec/i386/fft_sse.c
Log:
ff_fft_calc_3dn/3dn2/sse: convert intrinsics to inline asm.
2.5% faster fft, 0.5% faster vorbis.
Modified: trunk/libavcodec/fft.c
==============================================================================
--- trunk/libavcodec/fft.c (original)
+++ trunk/libavcodec/fft.c Sat Aug 19 01:53:49 2006
@@ -58,7 +58,7 @@
s->exptab1 = NULL;
/* compute constant table for HAVE_SSE version */
-#if (defined(HAVE_MMX) && (defined(HAVE_BUILTIN_VECTOR) || defined(HAVE_MM3DNOW))) \
+#if defined(HAVE_MMX) \
|| (defined(HAVE_ALTIVEC) && !defined(ALTIVEC_USE_REFERENCE_C_CODE))
{
int has_vectors = mm_support();
@@ -67,15 +67,12 @@
#if defined(HAVE_MMX)
if (has_vectors & MM_3DNOWEXT)
s->imdct_calc = ff_imdct_calc_3dn2;
-#ifdef HAVE_MM3DNOW
if (has_vectors & MM_3DNOWEXT)
/* 3DNowEx for Athlon(XP) */
s->fft_calc = ff_fft_calc_3dn2;
else if (has_vectors & MM_3DNOW)
/* 3DNow! for K6-2/3 */
s->fft_calc = ff_fft_calc_3dn;
-#endif
-#ifdef HAVE_BUILTIN_VECTOR
if (has_vectors & MM_SSE2)
/* SSE for P4/K8 */
s->fft_calc = ff_fft_calc_sse;
@@ -83,7 +80,6 @@
s->fft_calc == ff_fft_calc_c)
/* SSE for P3 */
s->fft_calc = ff_fft_calc_sse;
-#endif
#else /* HAVE_MMX */
if (has_vectors & MM_ALTIVEC)
s->fft_calc = ff_fft_calc_altivec;
Modified: trunk/libavcodec/i386/fft_3dn.c
==============================================================================
--- trunk/libavcodec/i386/fft_3dn.c (original)
+++ trunk/libavcodec/i386/fft_3dn.c Sat Aug 19 01:53:49 2006
@@ -1,6 +1,6 @@
/*
* FFT/MDCT transform with 3DNow! optimizations
- * Copyright (c) 2006 Zuxy MENG Jie.
+ * Copyright (c) 2006 Zuxy MENG Jie, Loren Merritt
* Based on fft_sse.c copyright (c) 2002 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
@@ -18,11 +18,6 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "../dsputil.h"
-#include <math.h>
-
-#ifdef HAVE_MM3DNOW
-
-#include <mm3dnow.h>
static const int p1m1[2] __attribute__((aligned(8))) =
{ 0, 1 << 31 };
@@ -33,104 +28,96 @@
void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z)
{
int ln = s->nbits;
- int j, np, np2;
- int nblocks, nloops;
- register FFTComplex *p, *q;
- FFTComplex *cptr, *cptr1;
- int k;
-
- np = 1 << ln;
- /* FEMMS not a must here but recommended by AMD */
- _m_femms();
-
- {
- __m64 *r, a0, a1, b0, b1, tmp, c;
-
- r = (__m64 *)&z[0];
- if (s->inverse)
- c = *(__m64 *)m1p1;
- else
- c = *(__m64 *)p1m1;
-
- j = (np >> 2);
- do {
- /* do the pass 0 butterfly */
- a0 = _m_pfadd(r[0], r[1]);
- a1 = _m_pfsub(r[0], r[1]);
-
- /* do the pass 0 butterfly */
- b0 = _m_pfadd(r[2], r[3]);
- b1 = _m_pfsub(r[2], r[3]);
-
- /* multiply third by -i */
- tmp = _m_punpckhdq(b1, b1);
- b1 = _m_punpckldq(b1, b1);
- b1 = _m_punpckldq(tmp, b1);
- b1 = _m_pxor(b1, c);
-
- /* do the pass 1 butterfly */
- r[0] = _m_pfadd(a0, b0);
- r[1] = _m_pfadd(a1, b1);
- r[2] = _m_pfsub(a0, b0);
- r[3] = _m_pfsub(a1, b1);
- r += 4;
- } while (--j != 0);
- }
+ long i, j;
+ long nblocks, nloops;
+ FFTComplex *p, *cptr;
+
+ asm volatile(
+ /* FEMMS is not a must here but recommended by AMD */
+ "femms \n\t"
+ "movq %0, %%mm7 \n\t"
+ ::"m"(*(s->inverse ? m1p1 : p1m1))
+ );
+
+ i = 8 << ln;
+ asm volatile(
+ "1: \n\t"
+ "sub $32, %0 \n\t"
+ "movq (%0,%1), %%mm0 \n\t"
+ "movq 16(%0,%1), %%mm1 \n\t"
+ "movq 8(%0,%1), %%mm2 \n\t"
+ "movq 24(%0,%1), %%mm3 \n\t"
+ "movq %%mm0, %%mm4 \n\t"
+ "movq %%mm1, %%mm5 \n\t"
+ "pfadd %%mm2, %%mm0 \n\t"
+ "pfadd %%mm3, %%mm1 \n\t"
+ "pfsub %%mm2, %%mm4 \n\t"
+ "pfsub %%mm3, %%mm5 \n\t"
+ "movq %%mm0, %%mm2 \n\t"
+ "punpckldq %%mm5, %%mm6 \n\t"
+ "punpckhdq %%mm6, %%mm5 \n\t"
+ "movq %%mm4, %%mm3 \n\t"
+ "pxor %%mm7, %%mm5 \n\t"
+ "pfadd %%mm1, %%mm0 \n\t"
+ "pfadd %%mm5, %%mm4 \n\t"
+ "pfsub %%mm1, %%mm2 \n\t"
+ "pfsub %%mm5, %%mm3 \n\t"
+ "movq %%mm0, (%0,%1) \n\t"
+ "movq %%mm4, 8(%0,%1) \n\t"
+ "movq %%mm2, 16(%0,%1) \n\t"
+ "movq %%mm3, 24(%0,%1) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(z)
+ );
/* pass 2 .. ln-1 */
- nblocks = np >> 3;
+ nblocks = 1 << (ln-3);
nloops = 1 << 2;
- np2 = np >> 1;
-
- cptr1 = s->exptab1;
+ cptr = s->exptab1;
do {
p = z;
- q = z + nloops;
j = nblocks;
do {
- cptr = cptr1;
- k = nloops >> 1;
- do {
- __m64 a0, a1, b0, b1, c0, c1, t10, t11, t20, t21;
-
- a0 = *(__m64 *)&p[0];
- a1 = *(__m64 *)&p[1];
- b0 = *(__m64 *)&q[0];
- b1 = *(__m64 *)&q[1];
-
- /* complex mul */
- c0 = *(__m64 *)&cptr[0];
- c1 = *(__m64 *)&cptr[1];
- /* cre*re cim*re */
- t10 = _m_pfmul(c0, _m_punpckldq(b0, b0));
- t11 = _m_pfmul(c1, _m_punpckldq(b1, b1));
- c0 = *(__m64 *)&cptr[2];
- c1 = *(__m64 *)&cptr[3];
- /* -cim*im cre*im */
- t20 = _m_pfmul(c0, _m_punpckhdq(b0, b0));
- t21 = _m_pfmul(c1, _m_punpckhdq(b1, b1));
- b0 = _m_pfadd(t10, t20);
- b1 = _m_pfadd(t11, t21);
-
- /* butterfly */
- *(__m64 *)&p[0] = _m_pfadd(a0, b0);
- *(__m64 *)&p[1] = _m_pfadd(a1, b1);
- *(__m64 *)&q[0] = _m_pfsub(a0, b0);
- *(__m64 *)&q[1] = _m_pfsub(a1, b1);
-
- p += 2;
- q += 2;
- cptr += 4;
- } while (--k);
-
- p += nloops;
- q += nloops;
+ i = nloops*8;
+ asm volatile(
+ "1: \n\t"
+ "sub $16, %0 \n\t"
+ "movq (%1,%0), %%mm0 \n\t"
+ "movq 8(%1,%0), %%mm1 \n\t"
+ "movq (%2,%0), %%mm2 \n\t"
+ "movq 8(%2,%0), %%mm3 \n\t"
+ "movq %%mm2, %%mm4 \n\t"
+ "movq %%mm3, %%mm5 \n\t"
+ "punpckldq %%mm2, %%mm2 \n\t"
+ "punpckldq %%mm3, %%mm3 \n\t"
+ "punpckhdq %%mm4, %%mm4 \n\t"
+ "punpckhdq %%mm5, %%mm5 \n\t"
+ "pfmul (%3,%0,2), %%mm2 \n\t" // cre*re cim*re
+ "pfmul 8(%3,%0,2), %%mm3 \n\t"
+ "pfmul 16(%3,%0,2), %%mm4 \n\t" // -cim*im cre*im
+ "pfmul 24(%3,%0,2), %%mm5 \n\t"
+ "pfadd %%mm2, %%mm4 \n\t" // cre*re-cim*im cim*re+cre*im
+ "pfadd %%mm3, %%mm5 \n\t"
+ "movq %%mm0, %%mm2 \n\t"
+ "movq %%mm1, %%mm3 \n\t"
+ "pfadd %%mm4, %%mm0 \n\t"
+ "pfadd %%mm5, %%mm1 \n\t"
+ "pfsub %%mm4, %%mm2 \n\t"
+ "pfsub %%mm5, %%mm3 \n\t"
+ "movq %%mm0, (%1,%0) \n\t"
+ "movq %%mm1, 8(%1,%0) \n\t"
+ "movq %%mm2, (%2,%0) \n\t"
+ "movq %%mm3, 8(%2,%0) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(p), "r"(p + nloops), "r"(cptr)
+ );
+ p += nloops*2;
} while (--j);
- cptr1 += nloops * 2;
- nblocks = nblocks >> 1;
- nloops = nloops << 1;
+ cptr += nloops*2;
+ nblocks >>= 1;
+ nloops <<= 1;
} while (nblocks != 0);
- _m_femms();
+ asm volatile("femms");
}
-
-#endif
Modified: trunk/libavcodec/i386/fft_3dn2.c
==============================================================================
--- trunk/libavcodec/i386/fft_3dn2.c (original)
+++ trunk/libavcodec/i386/fft_3dn2.c Sat Aug 19 01:53:49 2006
@@ -18,11 +18,6 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "../dsputil.h"
-#include <math.h>
-
-#ifdef HAVE_MM3DNOW
-
-#include <mm3dnow.h>
static const int p1m1[2] __attribute__((aligned(8))) =
{ 0, 1 << 31 };
@@ -33,108 +28,97 @@
void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z)
{
int ln = s->nbits;
- int j, np, np2;
- int nblocks, nloops;
- register FFTComplex *p, *q;
- FFTComplex *cptr, *cptr1;
- int k;
-
- np = 1 << ln;
- /* FEMMS is not a must here but recommended by AMD */
- _m_femms();
-
- {
- __m64 *r, a0, a1, b0, b1, c;
-
- r = (__m64 *)&z[0];
- if (s->inverse)
- c = *(__m64 *)m1p1;
- else
- c = *(__m64 *)p1m1;
-
- j = (np >> 2);
- do {
- /* do the pass 0 butterfly */
- a0 = _m_pfadd(r[0], r[1]);
- a1 = _m_pfsub(r[0], r[1]);
-
- /* do the pass 0 butterfly */
- b0 = _m_pfadd(r[2], r[3]);
- b1 = _m_pfsub(r[2], r[3]);
-
- /* multiply third by -i */
- b1 = _m_pswapd(b1);
- b1 = _m_pxor(b1, c);
-
- r[0] = _m_pfadd(a0, b0);
- r[1] = _m_pfadd(a1, b1);
- r[2] = _m_pfsub(a0, b0);
- r[3] = _m_pfsub(a1, b1);
- r += 4;
- } while (--j != 0);
- }
+ long i, j;
+ long nblocks, nloops;
+ FFTComplex *p, *cptr;
+
+ asm volatile(
+ /* FEMMS is not a must here but recommended by AMD */
+ "femms \n\t"
+ "movq %0, %%mm7 \n\t"
+ ::"m"(*(s->inverse ? m1p1 : p1m1))
+ );
+
+ i = 8 << ln;
+ asm volatile(
+ "1: \n\t"
+ "sub $32, %0 \n\t"
+ "movq (%0,%1), %%mm0 \n\t"
+ "movq 16(%0,%1), %%mm1 \n\t"
+ "movq 8(%0,%1), %%mm2 \n\t"
+ "movq 24(%0,%1), %%mm3 \n\t"
+ "movq %%mm0, %%mm4 \n\t"
+ "movq %%mm1, %%mm5 \n\t"
+ "pfadd %%mm2, %%mm0 \n\t"
+ "pfadd %%mm3, %%mm1 \n\t"
+ "pfsub %%mm2, %%mm4 \n\t"
+ "pfsub %%mm3, %%mm5 \n\t"
+ "movq %%mm0, %%mm2 \n\t"
+ "pswapd %%mm5, %%mm5 \n\t"
+ "movq %%mm4, %%mm3 \n\t"
+ "pxor %%mm7, %%mm5 \n\t"
+ "pfadd %%mm1, %%mm0 \n\t"
+ "pfadd %%mm5, %%mm4 \n\t"
+ "pfsub %%mm1, %%mm2 \n\t"
+ "pfsub %%mm5, %%mm3 \n\t"
+ "movq %%mm0, (%0,%1) \n\t"
+ "movq %%mm4, 8(%0,%1) \n\t"
+ "movq %%mm2, 16(%0,%1) \n\t"
+ "movq %%mm3, 24(%0,%1) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(z)
+ );
/* pass 2 .. ln-1 */
- nblocks = np >> 3;
+ nblocks = 1 << (ln-3);
nloops = 1 << 2;
- np2 = np >> 1;
-
- cptr1 = s->exptab1;
+ cptr = s->exptab1;
do {
p = z;
- q = z + nloops;
j = nblocks;
do {
- cptr = cptr1;
- k = nloops >> 1;
- do {
- __m64 a0, a1, b0, b1, c0, c1, t10, t11, t20, t21;
-
- a0 = *(__m64 *)&p[0];
- a1 = *(__m64 *)&p[1];
- b0 = *(__m64 *)&q[0];
- b1 = *(__m64 *)&q[1];
-
- /* complex mul */
- c0 = *(__m64 *)&cptr[0];
- c1 = *(__m64 *)&cptr[1];
- /* cre*re cim*im */
- t10 = _m_pfmul(c0, b0);
- t11 = _m_pfmul(c1, b1);
- /* no need to access cptr[2] & cptr[3] */
- c0 = _m_pswapd(c0);
- c1 = _m_pswapd(c1);
- /* cim*re cre*im */
- t20 = _m_pfmul(c0, b0);
- t21 = _m_pfmul(c1, b1);
-
- /* cre*re-cim*im cim*re+cre*im */
- b0 = _m_pfpnacc(t10, t20);
- b1 = _m_pfpnacc(t11, t21);
-
- /* butterfly */
- *(__m64 *)&p[0] = _m_pfadd(a0, b0);
- *(__m64 *)&p[1] = _m_pfadd(a1, b1);
- *(__m64 *)&q[0] = _m_pfsub(a0, b0);
- *(__m64 *)&q[1] = _m_pfsub(a1, b1);
-
- p += 2;
- q += 2;
- cptr += 4;
- } while (--k);
-
- p += nloops;
- q += nloops;
+ i = nloops*8;
+ asm volatile(
+ "1: \n\t"
+ "sub $16, %0 \n\t"
+ "movq (%1,%0), %%mm0 \n\t"
+ "movq 8(%1,%0), %%mm1 \n\t"
+ "movq (%2,%0), %%mm2 \n\t"
+ "movq 8(%2,%0), %%mm3 \n\t"
+ "movq (%3,%0,2), %%mm4 \n\t"
+ "movq 8(%3,%0,2), %%mm5 \n\t"
+ "pswapd %%mm4, %%mm6 \n\t" // no need for cptr[2] & cptr[3]
+ "pswapd %%mm5, %%mm7 \n\t"
+ "pfmul %%mm2, %%mm4 \n\t" // cre*re cim*im
+ "pfmul %%mm3, %%mm5 \n\t"
+ "pfmul %%mm2, %%mm6 \n\t" // cim*re cre*im
+ "pfmul %%mm3, %%mm7 \n\t"
+ "pfpnacc %%mm6, %%mm4 \n\t" // cre*re-cim*im cim*re+cre*im
+ "pfpnacc %%mm7, %%mm5 \n\t"
+ "movq %%mm0, %%mm2 \n\t"
+ "movq %%mm1, %%mm3 \n\t"
+ "pfadd %%mm4, %%mm0 \n\t"
+ "pfadd %%mm5, %%mm1 \n\t"
+ "pfsub %%mm4, %%mm2 \n\t"
+ "pfsub %%mm5, %%mm3 \n\t"
+ "movq %%mm0, (%1,%0) \n\t"
+ "movq %%mm1, 8(%1,%0) \n\t"
+ "movq %%mm2, (%2,%0) \n\t"
+ "movq %%mm3, 8(%2,%0) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(p), "r"(p + nloops), "r"(cptr)
+ );
+ p += nloops*2;
} while (--j);
- cptr1 += nloops * 2;
- nblocks = nblocks >> 1;
- nloops = nloops << 1;
+ cptr += nloops*2;
+ nblocks >>= 1;
+ nloops <<= 1;
} while (nblocks != 0);
- _m_femms();
+ asm volatile("femms");
}
-#endif
-
void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
const FFTSample *input, FFTSample *tmp)
{
@@ -221,3 +205,4 @@
}
asm volatile("femms");
}
+
Modified: trunk/libavcodec/i386/fft_sse.c
==============================================================================
--- trunk/libavcodec/i386/fft_sse.c (original)
+++ trunk/libavcodec/i386/fft_sse.c Sat Aug 19 01:53:49 2006
@@ -17,11 +17,6 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "../dsputil.h"
-#include <math.h>
-
-#ifdef HAVE_BUILTIN_VECTOR
-
-#include <xmmintrin.h>
static const int p1p1p1m1[4] __attribute__((aligned(16))) =
{ 0, 0, 0, 1 << 31 };
@@ -45,96 +40,81 @@
void ff_fft_calc_sse(FFTContext *s, FFTComplex *z)
{
int ln = s->nbits;
- int j, np, np2;
- int nblocks, nloops;
- register FFTComplex *p, *q;
- FFTComplex *cptr, *cptr1;
- int k;
-
- np = 1 << ln;
-
- {
- __m128 *r, a, b, a1, c1, c2;
-
- r = (__m128 *)&z[0];
- c1 = *(__m128 *)p1p1m1m1;
- if (s->inverse)
- c2 = *(__m128 *)p1p1m1p1;
- else
- c2 = *(__m128 *)p1p1p1m1;
-
- j = (np >> 2);
- do {
- a = r[0];
- b = _mm_shuffle_ps(a, a, _MM_SHUFFLE(1, 0, 3, 2));
- a = _mm_xor_ps(a, c1);
- /* do the pass 0 butterfly */
- a = _mm_add_ps(a, b);
-
- a1 = r[1];
- b = _mm_shuffle_ps(a1, a1, _MM_SHUFFLE(1, 0, 3, 2));
- a1 = _mm_xor_ps(a1, c1);
- /* do the pass 0 butterfly */
- b = _mm_add_ps(a1, b);
-
- /* multiply third by -i */
- /* by toggling the sign bit */
- b = _mm_shuffle_ps(b, b, _MM_SHUFFLE(2, 3, 1, 0));
- b = _mm_xor_ps(b, c2);
-
- /* do the pass 1 butterfly */
- r[0] = _mm_add_ps(a, b);
- r[1] = _mm_sub_ps(a, b);
- r += 2;
- } while (--j != 0);
- }
+ long i, j;
+ long nblocks, nloops;
+ FFTComplex *p, *cptr;
+
+ asm volatile(
+ "movaps %0, %%xmm4 \n\t"
+ "movaps %1, %%xmm5 \n\t"
+ ::"m"(*p1p1m1m1),
+ "m"(*(s->inverse ? p1p1m1p1 : p1p1p1m1))
+ );
+
+ i = 8 << ln;
+ asm volatile(
+ "1: \n\t"
+ "sub $32, %0 \n\t"
+ /* do the pass 0 butterfly */
+ "movaps (%0,%1), %%xmm0 \n\t"
+ "movaps %%xmm0, %%xmm1 \n\t"
+ "shufps $0x4E, %%xmm0, %%xmm0 \n\t"
+ "xorps %%xmm4, %%xmm1 \n\t"
+ "addps %%xmm1, %%xmm0 \n\t"
+ "movaps 16(%0,%1), %%xmm2 \n\t"
+ "movaps %%xmm2, %%xmm3 \n\t"
+ "shufps $0x4E, %%xmm2, %%xmm2 \n\t"
+ "xorps %%xmm4, %%xmm3 \n\t"
+ "addps %%xmm3, %%xmm2 \n\t"
+ /* multiply third by -i */
+ /* by toggling the sign bit */
+ "shufps $0xB4, %%xmm2, %%xmm2 \n\t"
+ "xorps %%xmm5, %%xmm2 \n\t"
+ /* do the pass 1 butterfly */
+ "movaps %%xmm0, %%xmm1 \n\t"
+ "addps %%xmm2, %%xmm0 \n\t"
+ "subps %%xmm2, %%xmm1 \n\t"
+ "movaps %%xmm0, (%0,%1) \n\t"
+ "movaps %%xmm1, 16(%0,%1) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(z)
+ );
/* pass 2 .. ln-1 */
- nblocks = np >> 3;
+ nblocks = 1 << (ln-3);
nloops = 1 << 2;
- np2 = np >> 1;
-
- cptr1 = s->exptab1;
+ cptr = s->exptab1;
do {
p = z;
- q = z + nloops;
j = nblocks;
do {
- cptr = cptr1;
- k = nloops >> 1;
- do {
- __m128 a, b, c, t1, t2;
-
- a = *(__m128 *)p;
- b = *(__m128 *)q;
-
- /* complex mul */
- c = *(__m128 *)cptr;
- /* cre*re cim*re */
- t1 = _mm_mul_ps(c,
- _mm_shuffle_ps(b, b, _MM_SHUFFLE(2, 2, 0, 0)));
- c = *(__m128 *)(cptr + 2);
- /* -cim*im cre*im */
- t2 = _mm_mul_ps(c,
- _mm_shuffle_ps(b, b, _MM_SHUFFLE(3, 3, 1, 1)));
- b = _mm_add_ps(t1, t2);
-
- /* butterfly */
- *(__m128 *)p = _mm_add_ps(a, b);
- *(__m128 *)q = _mm_sub_ps(a, b);
-
- p += 2;
- q += 2;
- cptr += 4;
- } while (--k);
-
- p += nloops;
- q += nloops;
+ i = nloops*8;
+ asm volatile(
+ "1: \n\t"
+ "sub $16, %0 \n\t"
+ "movaps (%2,%0), %%xmm1 \n\t"
+ "movaps (%1,%0), %%xmm0 \n\t"
+ "movaps %%xmm1, %%xmm2 \n\t"
+ "shufps $0xA0, %%xmm1, %%xmm1 \n\t"
+ "shufps $0xF5, %%xmm2, %%xmm2 \n\t"
+ "mulps (%3,%0,2), %%xmm1 \n\t" // cre*re cim*re
+ "mulps 16(%3,%0,2), %%xmm2 \n\t" // -cim*im cre*im
+ "addps %%xmm2, %%xmm1 \n\t"
+ "movaps %%xmm0, %%xmm3 \n\t"
+ "addps %%xmm1, %%xmm0 \n\t"
+ "subps %%xmm1, %%xmm3 \n\t"
+ "movaps %%xmm0, (%1,%0) \n\t"
+ "movaps %%xmm3, (%2,%0) \n\t"
+ "jg 1b \n\t"
+ :"+r"(i)
+ :"r"(p), "r"(p + nloops), "r"(cptr)
+ );
+ p += nloops*2;
} while (--j);
- cptr1 += nloops * 2;
- nblocks = nblocks >> 1;
- nloops = nloops << 1;
+ cptr += nloops*2;
+ nblocks >>= 1;
+ nloops <<= 1;
} while (nblocks != 0);
}
-#endif
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