llvm-project/compiler-rt/lib/builtins/fixdfdi.c

45 lines
1.2 KiB
C

//===-- fixdfdi.c - Implement __fixdfdi -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#define DOUBLE_PRECISION
#include "fp_lib.h"
#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 "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
COMPILER_RT_ALIAS(__fixdfdi, __aeabi_d2lz)
#endif
#endif