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attribute used patch by (mitya at school dot ioffe dot ru (Dmitry Baryshkov))

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Originally committed as revision 2830 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Dmitry Baryshkov 21 years ago committed by Michael Niedermayer
parent fddae1c30f
commit 5c0513bda7
4 changed files with 17 additions and 11 deletions
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  1. 6
      libavcodec/common.h
  2. 16
      libavcodec/i386/dsputil_mmx.c
  3. 2
      libavcodec/i386/motion_est_mmx.c
  4. 4
      libavcodec/i386/simple_idct_mmx.c

6
libavcodec/common.h
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@ -82,6 +82,12 @@ extern const struct AVOption avoptions_workaround_bug[11];
# define always_inline inline
#endif
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
# define attribute_used __attribute__((used))
#else
# define attribute_used
#endif
#ifndef EMULATE_INTTYPES
# include <inttypes.h>
#else

16
libavcodec/i386/dsputil_mmx.c
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@ -31,16 +31,16 @@ extern const uint8_t ff_h263_loop_filter_strength[32];
int mm_flags; /* multimedia extension flags */
/* pixel operations */
static const uint64_t mm_bone __attribute__ ((aligned(8))) = 0x0101010101010101ULL;
static const uint64_t mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
static const uint64_t mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002ULL;
static const uint64_t mm_bone attribute_used __attribute__ ((aligned(8))) = 0x0101010101010101ULL;
static const uint64_t mm_wone attribute_used __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
static const uint64_t mm_wtwo attribute_used __attribute__ ((aligned(8))) = 0x0002000200020002ULL;
static const uint64_t ff_pw_20 __attribute__ ((aligned(8))) = 0x0014001400140014ULL;
static const uint64_t ff_pw_3 __attribute__ ((aligned(8))) = 0x0003000300030003ULL;
static const uint64_t ff_pw_16 __attribute__ ((aligned(8))) = 0x0010001000100010ULL;
static const uint64_t ff_pw_15 __attribute__ ((aligned(8))) = 0x000F000F000F000FULL;
static const uint64_t ff_pw_20 attribute_used __attribute__ ((aligned(8))) = 0x0014001400140014ULL;
static const uint64_t ff_pw_3 attribute_used __attribute__ ((aligned(8))) = 0x0003000300030003ULL;
static const uint64_t ff_pw_16 attribute_used __attribute__ ((aligned(8))) = 0x0010001000100010ULL;
static const uint64_t ff_pw_15 attribute_used __attribute__ ((aligned(8))) = 0x000F000F000F000FULL;
static const uint64_t ff_pb_FC __attribute__ ((aligned(8))) = 0xFCFCFCFCFCFCFCFCULL;
static const uint64_t ff_pb_FC attribute_used __attribute__ ((aligned(8))) = 0xFCFCFCFCFCFCFCFCULL;
#define JUMPALIGN() __asm __volatile (".balign 8"::)
#define MOVQ_ZERO(regd) __asm __volatile ("pxor %%" #regd ", %%" #regd ::)

2
libavcodec/i386/motion_est_mmx.c
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@ -27,7 +27,7 @@ static const __attribute__ ((aligned(8))) uint64_t round_tab[3]={
0x0002000200020002ULL,
};
static __attribute__ ((aligned(8), unused)) uint64_t bone= 0x0101010101010101LL;
static attribute_used __attribute__ ((aligned(8))) uint64_t bone= 0x0101010101010101LL;
static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
{

4
libavcodec/i386/simple_idct_mmx.c
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@ -45,8 +45,8 @@
#define ROW_SHIFT 11
#define COL_SHIFT 20 // 6
static const uint64_t __attribute__((aligned(8))) wm1010= 0xFFFF0000FFFF0000ULL;
static const uint64_t __attribute__((aligned(8))) d40000= 0x0000000000040000ULL;
static const uint64_t attribute_used __attribute__((aligned(8))) wm1010= 0xFFFF0000FFFF0000ULL;
static const uint64_t attribute_used __attribute__((aligned(8))) d40000= 0x0000000000040000ULL;
static const int16_t __attribute__((aligned(8))) coeffs[]= {
1<<(ROW_SHIFT-1), 0, 1<<(ROW_SHIFT-1), 0,

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