virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-24 13:56:33 +02:00
Code Issues Releases Activity

ARM: improve FASTDIV asm

Browse Source 
This uses one register less.  Also add missing "cc" clobber.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-05-27 21:43:15 +01:00
parent 7f7726c7a2
commit a84f82560e
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libavutil/arm/intmath.h
View File

@ -33,12 +33,12 @@
#define FASTDIV FASTDIV #define FASTDIV FASTDIV
static av_always_inline av_const int FASTDIV(int a, int b) static av_always_inline av_const int FASTDIV(int a, int b)
{ {
int r, t; int r;
__asm__ ("cmp %3, #2 \n\t" __asm__ ("cmp %2, #2 \n\t"
"ldr %1, [%4, %3, lsl #2] \n\t" "ldr %0, [%3, %2, lsl #2] \n\t"
"lsrle %0, %2, #1 \n\t" "lsrle %0, %1, #1 \n\t"
"smmulgt %0, %1, %2 \n\t" "smmulgt %0, %0, %1 \n\t"
: "=&r"(r), "=&r"(t) : "r"(a), "r"(b), "r"(ff_inverse)); : "=&r"(r) : "r"(a), "r"(b), "r"(ff_inverse) : "cc");
return r; return r;
} }