RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 08:42:39 +00:00
Code Issues Projects Releases Wiki Activity

simplify asm mid_pred, as suggested by michaelni.

Browse Source 
Originally committed as revision 6314 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2006-09-21 17:48:45 +00:00
parent a4eb118a41
commit 7e611a0e8c
1 changed files with 9 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
libavutil/common.h
View File

@ -236,18 +236,17 @@ static inline int av_log2_16bit(unsigned int v)
static inline int mid_pred(int a, int b, int c)
{
#if (defined(ARCH_X86) && __CPU__ >= 686 || defined(ARCH_X86_64)) && !defined(RUNTIME_CPUDETECT)
int i=a, j=a;
int i=b;
asm volatile(
"cmp %4, %2 \n\t"
"cmovg %4, %0 \n\t"
"cmovl %4, %1 \n\t"
"cmp %4, %3 \n\t"
"cmovg %3, %0 \n\t"
"cmp %2, %1 \n\t"
"cmovg %1, %0 \n\t"
"cmovg %2, %1 \n\t"
"cmp %3, %1 \n\t"
"cmovl %3, %1 \n\t"
"cmp %3, %2 \n\t"
"cmovl %1, %0 \n\t"
:"+&r"(i), "+&r"(j)
:"r"(a), "r"(b), "r"(c)
"cmp %1, %0 \n\t"
"cmovg %1, %0 \n\t"
:"+&r"(i), "+&r"(a)
:"r"(b), "r"(c)
);
return i;
#elif 0