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avcodec/mips: loongson fix bugs in mathops optimization

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the incorrect UMULH, ff_sqrt, MAC64 and MLS64 to be optimized later, delete them just for now.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
周晓勇 2015-05-21 16:31:58 +08:00 committed by Michael Niedermayer
parent 818275bbd0
commit 33e9473366
1 changed files with 0 additions and 51 deletions
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51
libavcodec/mips/mathops.h
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@ -43,19 +43,6 @@ static inline av_const int MULH(int a, int b)
return c;
}
#define UMULH UMULH
static inline av_const unsigned UMULH(unsigned a, unsigned b)
{
unsigned c;
__asm__ ("dmultu %1, %2 \n\t"
"mflo %0 \n\t"
"dsrl %0, %0, 32 \n\t"
: "=r"(c)
: "r"(a),"r"(b)
: "hi", "lo");
return c;
}
#define mid_pred mid_pred
static inline av_const int mid_pred(int a, int b, int c)
{
@ -73,44 +60,6 @@ static inline av_const int mid_pred(int a, int b, int c)
return t;
}
#define ff_sqrt ff_sqrt
static inline av_const unsigned int ff_sqrt(unsigned int a)
{
unsigned int b;
__asm__ ("ctc1 %1, $f0 \n\t"
"sqrt.s $f2, $f0 \n\t"
"cvt.w.s $f0, $f2 \n\t"
"cfc1 %0, $f0 \n\t"
: "=r"(b)
: "r"(a));
return b;
}
static inline av_const int64_t MAC64(int64_t d, int a, int b)
{
int64_t m;
__asm__ ("dmult %2, %3 \n\t"
"mflo %1 \n\t"
"daddu %0, %0, %1 \n\t"
: "+r"(d), "=&r"(m) : "r"(a), "r"(b)
: "hi", "lo");
return d;
}
#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
static inline av_const int64_t MLS64(int64_t d, int a, int b)
{
int64_t m;
__asm__ ("dmult %2, %3 \n\t"
"mflo %1 \n\t"
"dsubu %0, %0, %1 \n\t"
: "+r"(d), "=&r"(m) : "r"(a), "r"(b)
: "hi", "lo");
return d;
}
#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
#endif /* HAVE_LOONGSON3 */
#endif /* HAVE_INLINE_ASM */