cosmopolitan/third_party/compiler_rt/fixdfdi.c

59 lines
1.4 KiB
C

/* clang-format off */
/* ===-- fixdfdi.c - Implement __fixdfdi -----------------------------------===
*
* 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.
*
* ===----------------------------------------------------------------------===
*/
STATIC_YOINK("huge_compiler_rt_license");
#define DOUBLE_PRECISION
#include "third_party/compiler_rt/fp_lib.inc"
#ifndef __SOFT_FP__
/* Support for systems that have hardware floating-point; can set the invalid
* flag as a side-effect of computation.
*/
COMPILER_RT_ABI du_int __fixunsdfdi(double a);
COMPILER_RT_ABI di_int
__fixdfdi(double a)
{
if (a < 0.0) {
return -__fixunsdfdi(-a);
}
return __fixunsdfdi(a);
}
#else
/* Support for systems that don't have hardware floating-point; there are no
* flags to set, and we don't want to code-gen to an unknown soft-float
* implementation.
*/
typedef di_int fixint_t;
typedef du_int fixuint_t;
#include "third_party/compiler_rt/fp_fixint_impl.inc"
COMPILER_RT_ABI di_int
__fixdfdi(fp_t a) {
return __fixint(a);
}
#endif
#if defined(__ARM_EABI__)
#if defined(COMPILER_RT_ARMHF_TARGET)
AEABI_RTABI di_int __aeabi_d2lz(fp_t a) {
return __fixdfdi(a);
}
#else
AEABI_RTABI di_int __aeabi_d2lz(fp_t a) COMPILER_RT_ALIAS(__fixdfdi);
#endif
#endif