rt_gccstream/gcc/testsuite/gcc.dg/builtin-ffs-1.c

18 lines
375 B
C

/* { dg-do compile } */
/* { dg-options "-O2" } */
extern int ffs (int) __asm ("__GI_ffs") __attribute__ ((nothrow, const));
int
ffsll (long long int i)
{
unsigned long long int x = i & -i;
if (x <= 0xffffffff)
return ffs (i);
else
return 32 + ffs (i >> 32);
}
/* { dg-final { scan-assembler-not "\nffs\n|\nffs\[^a-zA-Z0-9_\]|\[^a-zA-Z0-9_\]ffs\n" } } */