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

/* ===-- fixsfdi.c - Implement __fixsfdi -----------------------------------===
 *
 *                     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.
 *
 * ===----------------------------------------------------------------------===
 */

#define SINGLE_PRECISION
#include "fp_lib.h"

ARM_EABI_FNALIAS(f2lz, fixsfdi)

#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 __fixunssfdi(float a);

COMPILER_RT_ABI di_int
__fixsfdi(float a)
{
    if (a < 0.0f) {
        return -__fixunssfdi(-a);
    }
    return __fixunssfdi(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
__fixsfdi(fp_t a) {
    return __fixint(a);
}

#endif