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host-utils: Add host long specific aliases for clz, ctz, ctpop 

We will standardize on these names, rather than the similar routines
currently residing in qemu/bitops.h.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-13 17:47:34 -08:00 committed by Blue Swirl
parent 38dad9e574
commit 0165437302
1 changed files with 19 additions and 0 deletions
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19
include/qemu/host-utils.h
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@ -26,6 +26,7 @@
#define HOST_UTILS_H 1
#include "qemu/compiler.h" /* QEMU_GNUC_PREREQ */
#include <limits.h>
#if defined(__x86_64__)
#define __HAVE_FAST_MULU64__
@ -237,4 +238,22 @@ static inline int ctpop64(uint64_t val)
#endif
}
/* Host type specific sizes of these routines. */
#if ULONG_MAX == UINT32_MAX
# define clzl clz32
# define ctzl ctz32
# define clol clo32
# define ctol cto32
# define ctpopl ctpop32
#elif ULONG_MAX == UINT64_MAX
# define clzl clz64
# define ctzl ctz64
# define clol clo64
# define ctol cto64
# define ctpopl ctpop64
#else
# error Unknown sizeof long
#endif
#endif