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MFia64:

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Fix -O builds with gcc 3.4 by defining ffs as __builtin_ffs instead
of creating an inline function that just calls __builtin_ffs.
This commit is contained in:
Paul Saab 2004-07-30 16:44:29 +00:00
parent 5fbbfacea3
commit bc35f5dc9e
1 changed files with 1 additions and 17 deletions
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18
sys/amd64/include/cpufunc.h
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@ -118,23 +118,7 @@ enable_intr(void)
#ifdef _KERNEL
#define HAVE_INLINE_FFS
static __inline int
ffs(int mask)
{
#if 0
/*
* Note that gcc-2's builtin ffs would be used if we didn't declare
* this inline or turn off the builtin. The builtin is faster but
* broken in gcc-2.4.5 and slower but working in gcc-2.5 and later
* versions.
*/
return (mask == 0 ? mask : (int)bsfl((u_int)mask) + 1);
#else
/* Actually, the above is way out of date. The builtins use cmov etc */
return (__builtin_ffs(mask));
#endif
}
#define ffs(x) __builtin_ffs(x)
#define HAVE_INLINE_FFSL