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Fix ff_imdct_calc_sse() on gcc-4.6

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Gcc 4.6 only preserves the first value when using an array with an "m"
constraint.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 770c410fbb)
This commit is contained in:
Alex Converse 2011-01-30 01:04:41 -08:00 committed by Michael Niedermayer
parent 2aaa2a1700
commit a35d782d28
1 changed files with 3 additions and 4 deletions
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7
libavcodec/x86/fft_sse.c
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@ -23,7 +23,7 @@
#include "libavcodec/dsputil.h"
#include "fft.h"
DECLARE_ALIGNED(16, static const int, m1m1m1m1)[4] =
DECLARE_ASM_CONST(16, int, ff_m1m1m1m1)[4] =
{ 1 << 31, 1 << 31, 1 << 31, 1 << 31 };
void ff_fft_dispatch_sse(FFTComplex *z, int nbits);
@ -82,7 +82,7 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
j = -n;
k = n-16;
__asm__ volatile(
"movaps %4, %%xmm7 \n"
"movaps "MANGLE(ff_m1m1m1m1)", %%xmm7 \n"
"1: \n"
"movaps (%2,%1), %%xmm0 \n"
"movaps (%3,%0), %%xmm1 \n"
@ -95,8 +95,7 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
"add $16, %0 \n"
"jl 1b \n"
:"+r"(j), "+r"(k)
:"r"(output+n4), "r"(output+n4*3),
"m"(*m1m1m1m1)
:"r"(output+n4), "r"(output+n4*3)
XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm7")
);
}