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Lines 35-46
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| 35 |
static av_always_inline av_const int MULL(int a, int b, unsigned shift) |
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static av_always_inline av_const int MULL(int a, int b, unsigned shift) |
| 36 |
{ |
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{ |
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int rt, dummy; |
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int rt, dummy; |
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if (__builtin_constant_p(shift)) |
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__asm__ ( |
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__asm__ ( |
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"imull %3 \n\t" |
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"imull %3 \n\t" |
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"shrdl %4, %%edx, %%eax \n\t" |
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"shrdl %4, %%edx, %%eax \n\t" |
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:"=a"(rt), "=d"(dummy) |
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:"=a"(rt), "=d"(dummy) |
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:"a"(a), "rm"(b), "ci"((uint8_t)shift) |
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:"a"(a), "rm"(b), "i"(shift & 0x1F) |
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); |
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); |
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else |
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__asm__ ( |
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"imull %3 \n\t" |
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"shrdl %4, %%edx, %%eax \n\t" |
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:"=a"(rt), "=d"(dummy) |
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:"a"(a), "rm"(b), "c"((uint8_t)shift) |
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); |
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return rt; |
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return rt; |
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} |
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} |
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Lines 113-131
__asm__ volatile(\
Link Here
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| 113 |
// avoid +32 for shift optimization (gcc should do that ...) |
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// avoid +32 for shift optimization (gcc should do that ...) |
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#define NEG_SSR32 NEG_SSR32 |
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#define NEG_SSR32 NEG_SSR32 |
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static inline int32_t NEG_SSR32( int32_t a, int8_t s){ |
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static inline int32_t NEG_SSR32( int32_t a, int8_t s){ |
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if (__builtin_constant_p(s)) |
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__asm__ ("sarl %1, %0\n\t" |
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__asm__ ("sarl %1, %0\n\t" |
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: "+r" (a) |
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: "+r" (a) |
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: "ic" ((uint8_t)(-s)) |
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: "i" (-s & 0x1F) |
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); |
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); |
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else |
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__asm__ ("sarl %1, %0\n\t" |
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: "+r" (a) |
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: "c" ((uint8_t)(-s)) |
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); |
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return a; |
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return a; |
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} |
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} |
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#define NEG_USR32 NEG_USR32 |
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#define NEG_USR32 NEG_USR32 |
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static inline uint32_t NEG_USR32(uint32_t a, int8_t s){ |
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static inline uint32_t NEG_USR32(uint32_t a, int8_t s){ |
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if (__builtin_constant_p(s)) |
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__asm__ ("shrl %1, %0\n\t" |
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__asm__ ("shrl %1, %0\n\t" |
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: "+r" (a) |
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: "+r" (a) |
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: "ic" ((uint8_t)(-s)) |
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: "i" (-s & 0x1F) |
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); |
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); |
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else |
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__asm__ ("shrl %1, %0\n\t" |
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: "+r" (a) |
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: "c" ((uint8_t)(-s)) |
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); |
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return a; |
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return a; |
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} |
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} |
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