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ARM: improve FASTDIV asm 

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