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opus: cf inline asm for MULT32_32_Q31

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speeds up decoding of a 64kbps test file by 2MHz on h300

Change-Id: I437d05278fe1c495715cf0e3477f9960d1df9d3a
This commit is contained in:
Nils Wallménius 2012-10-06 23:41:15 +02:00
parent 2119f75af3
commit 3ac0fc7c90
1 changed files with 13 additions and 1 deletions
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14
lib/rbcodec/codecs/libopus/celt/fixed_generic.h
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@ -71,7 +71,19 @@ static inline int32_t MULT16_32_Q15(int32_t a, int32_t b)
#define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15)) #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15))
#endif #endif
#if defined(CPU_ARM) #if defined(CPU_COLDFIRE)
static inline int32_t MULT32_32_Q31(int32_t a, int32_t b)
{
int32_t r;
asm volatile ("mac.l %[a], %[b], %%acc0;"
"movclr.l %%acc0, %[r];"
: [r] "=r" (r)
: [a] "r" (a), [b] "r" (b)
: "cc");
return r;
}
#elif defined(CPU_ARM)
static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) static inline int32_t MULT32_32_Q31(int32_t a, int32_t b)
{ {
int32_t lo, hi; int32_t lo, hi;