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Use cltd instead of cdq asm mnemonic, ICC and gcc support both, but

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SunStudio 12 only supports the former.

Originally committed as revision 12275 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2008-02-28 17:01:35 +00:00
parent 48026fbef6
commit 7e14b8082d
2 changed files with 4 additions and 4 deletions
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6
libavcodec/cabac.h
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@ -327,7 +327,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){
//P3:665 athlon:517 //P3:665 athlon:517
asm( asm(
"lea -0x100(%0), %%eax \n\t" "lea -0x100(%0), %%eax \n\t"
"cdq \n\t" "cltd \n\t"
"mov %0, %%eax \n\t" "mov %0, %%eax \n\t"
"and %%edx, %0 \n\t" "and %%edx, %0 \n\t"
"and %1, %%edx \n\t" "and %1, %%edx \n\t"
@ -599,7 +599,7 @@ static int get_cabac_bypass(CABACContext *c){
"shl $17, %%ebx \n\t" "shl $17, %%ebx \n\t"
"add %%eax, %%eax \n\t" "add %%eax, %%eax \n\t"
"sub %%ebx, %%eax \n\t" "sub %%ebx, %%eax \n\t"
"cdq \n\t" "cltd \n\t"
"and %%edx, %%ebx \n\t" "and %%edx, %%ebx \n\t"
"add %%ebx, %%eax \n\t" "add %%ebx, %%eax \n\t"
"test %%ax, %%ax \n\t" "test %%ax, %%ax \n\t"
@ -646,7 +646,7 @@ static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val){
"shl $17, %%ebx \n\t" "shl $17, %%ebx \n\t"
"add %%eax, %%eax \n\t" "add %%eax, %%eax \n\t"
"sub %%ebx, %%eax \n\t" "sub %%ebx, %%eax \n\t"
"cdq \n\t" "cltd \n\t"
"and %%edx, %%ebx \n\t" "and %%edx, %%ebx \n\t"
"add %%ebx, %%eax \n\t" "add %%ebx, %%eax \n\t"
"xor %%edx, %%ecx \n\t" "xor %%edx, %%ecx \n\t"

2
libavutil/internal.h
View File

@ -205,7 +205,7 @@ static inline unsigned int ff_sqrt(unsigned int a)
#if defined(ARCH_X86) #if defined(ARCH_X86)
#define MASK_ABS(mask, level)\ #define MASK_ABS(mask, level)\
asm volatile(\ asm volatile(\
"cdq \n\t"\ "cltd \n\t"\
"xorl %1, %0 \n\t"\ "xorl %1, %0 \n\t"\
"subl %1, %0 \n\t"\ "subl %1, %0 \n\t"\
: "+a" (level), "=&d" (mask)\ : "+a" (level), "=&d" (mask)\