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x86: cabac: remove hardcoded esi in get_cabac_inline()

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-06-20 09:19:27 +01:00
parent da3af4db61
commit f743595e87
1 changed files with 8 additions and 8 deletions
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16
libavcodec/cabac.h
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@ -310,7 +310,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){
static av_always_inline int get_cabac_inline(CABACContext *c, uint8_t * const state){
//FIXME gcc generates duplicate load/stores for c->low and c->range
#if ARCH_X86 && HAVE_7REGS && !defined(BROKEN_RELOCATIONS)
int bit, low, tmp;
int bit, low, range, tmp;
#if HAVE_FAST_CMOV
#define BRANCHLESS_GET_CABAC_UPDATE(ret, cabac, statep, low, lowword, range, tmp)\
@ -370,17 +370,17 @@ static av_always_inline int get_cabac_inline(CABACContext *c, uint8_t * const st
"1: \n\t"
__asm__ volatile(
"movl %a5(%4), %%esi \n\t"
"movl %a6(%4), %1 \n\t"
BRANCHLESS_GET_CABAC("%0", "%4", "(%3)", "%1", "%w1", "%%esi", "%2", "%b2", "%a7")
"movl %%esi, %a5(%4) \n\t"
"movl %1, %a6(%4) \n\t"
"movl %a6(%5), %2 \n\t"
"movl %a7(%5), %1 \n\t"
BRANCHLESS_GET_CABAC("%0", "%5", "(%4)", "%1", "%w1", "%2", "%3", "%b3", "%a8")
"movl %2, %a6(%5) \n\t"
"movl %1, %a7(%5) \n\t"
:"=&a"(bit), "=&r"(low), "=&r"(tmp)
:"=&a"(bit), "=&r"(low), "=&r"(range), "=&r"(tmp)
:"r"(state), "r"(c),
"i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)),
"i"(offsetof(CABACContext, bytestream))
: "%"REG_c, "%esi", "memory"
: "%"REG_c, "memory"
);
bit&=1;
#else /* ARCH_X86 && HAVE_7REGS && !defined(BROKEN_RELOCATIONS) */