72c50e51a5
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
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* ===-- fixunsxfdi.c - Implement __fixunsxfdi -----------------------------===
|
|
*
|
|
* 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 __fixunsxfdi for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#if !_ARCH_PPC
|
|
|
|
#include "int_lib.h"
|
|
|
|
/* Returns: convert a to a unsigned long long, rounding toward zero.
|
|
* Negative values all become zero.
|
|
*/
|
|
|
|
/* Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
|
|
* du_int is a 64 bit integral type
|
|
* value in long double is representable in du_int or is negative
|
|
* (no range checking performed)
|
|
*/
|
|
|
|
/* gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
|
|
* 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
|
|
*/
|
|
|
|
du_int
|
|
__fixunsxfdi(long double a)
|
|
{
|
|
long_double_bits fb;
|
|
fb.f = a;
|
|
int e = (fb.u.high.s.low & 0x00007FFF) - 16383;
|
|
if (e < 0 || (fb.u.high.s.low & 0x00008000))
|
|
return 0;
|
|
return fb.u.low.all >> (63 - e);
|
|
}
|
|
|
|
#endif
|