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* common.din (ffsl): Export.

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(ffsll): Export.
	* syscalls.cc (ffs): Implement using GCC intrinsic.
	(ffsl): Ditto.
	(ffsll): Ditto.
	* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
This commit is contained in:
Corinna Vinschen
2014-10-08 21:03:40 +00:00
parent 2fb56bbfaa
commit d326f841c3
3 changed files with 15 additions and 15 deletions
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25
winsup/cygwin/syscalls.cc
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@@ -3836,22 +3836,19 @@ nice (int incr)
extern "C" int
ffs (int i)
{
static const unsigned char table[] =
{
0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
};
unsigned x = i & -i;
return __builtin_ffs (i);
}
int a = x <= 0xffff ? (x <= 0xff ? 0 : 8) : (x <= 0xffffff ? 16 : 24);
extern "C" int
ffsl (long i)
{
return __builtin_ffsl (i);
}
return table[x >> a] + a;
extern "C" int
ffsll (long long i)
{
return __builtin_ffsll (i);
}
static void