0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* ===-- fixxfdi.c - Implement __fixxfdi -----------------------------------===
|
|
*
|
|
* 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 __fixxfdi for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#if !_ARCH_PPC
|
|
|
|
#include "int_lib.h"
|
|
|
|
/* Returns: convert a to a signed long long, rounding toward zero. */
|
|
|
|
/* Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
|
|
* su_int is a 32 bit integral type
|
|
* value in long double is representable in di_int (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
|
|
*/
|
|
|
|
COMPILER_RT_ABI di_int
|
|
__fixxfdi(long double a)
|
|
{
|
|
long_double_bits fb;
|
|
fb.f = a;
|
|
int e = (fb.u.high.s.low & 0x00007FFF) - 16383;
|
|
if (e < 0)
|
|
return 0;
|
|
di_int s = -(si_int)((fb.u.high.s.low & 0x00008000) >> 15);
|
|
di_int r = fb.u.low.all;
|
|
r = (du_int)r >> (63 - e);
|
|
return (r ^ s) - s;
|
|
}
|
|
|
|
#endif /* !_ARCH_PPC */
|