mirror of
https://github.com/opnsense/src.git
synced 2026-05-28 04:12:45 -04:00
ef8821e5db
It seems there have only been a small amount to the compiler-rt source code in the mean time. I'd rather have the code in sync as much as possible by the time we release 9.0. Changes: - The libcompiler_rt library is now dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. - Our local modifications for using .hidden instead of .private_extern have been upstreamed, meaning our changes to lib/assembly.h can now be reverted. - A possible endless recursion in __modsi3() has been fixed. - Support for ARM EABI has been added, but it has no effect on FreeBSD (yet). - The functions __udivmodsi4 and __divmodsi4 have been added. Requested by: many, including bf@ and Pedro Giffuni
37 lines
964 B
C
37 lines
964 B
C
/* ===-- ffsti2.c - Implement __ffsti2 -------------------------------------===
|
|
*
|
|
* The LLVM Compiler Infrastructure
|
|
*
|
|
* This file is dual licensed under the MIT and the University of Illinois Open
|
|
* Source Licenses. See LICENSE.TXT for details.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*
|
|
* This file implements __ffsti2 for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#if __x86_64
|
|
|
|
#include "int_lib.h"
|
|
|
|
/* Returns: the index of the least significant 1-bit in a, or
|
|
* the value zero if a is zero. The least significant bit is index one.
|
|
*/
|
|
|
|
si_int
|
|
__ffsti2(ti_int a)
|
|
{
|
|
twords x;
|
|
x.all = a;
|
|
if (x.s.low == 0)
|
|
{
|
|
if (x.s.high == 0)
|
|
return 0;
|
|
return __builtin_ctzll(x.s.high) + (1 + sizeof(di_int) * CHAR_BIT);
|
|
}
|
|
return __builtin_ctzll(x.s.low) + 1;
|
|
}
|
|
|
|
#endif /* __x86_64 */
|