llvm-project
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1//===-- fixunssfdi.c - Implement __fixunssfdi -----------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#define SINGLE_PRECISION10#include "fp_lib.h"11
12#ifndef __SOFTFP__13// Support for systems that have hardware floating-point; can set the invalid
14// flag as a side-effect of computation.
15
16COMPILER_RT_ABI du_int __fixunssfdi(float a) {17if (a <= 0.0f)18return 0;19double da = a;20su_int high = da / 4294967296.f; // da / 0x1p32f;21su_int low = da - (double)high * 4294967296.f; // high * 0x1p32f;22return ((du_int)high << 32) | low;23}
24
25#else26// Support for systems that don't have hardware floating-point; there are no
27// flags to set, and we don't want to code-gen to an unknown soft-float
28// implementation.
29
30typedef du_int fixuint_t;31#include "fp_fixuint_impl.inc"32
33COMPILER_RT_ABI du_int __fixunssfdi(fp_t a) { return __fixuint(a); }34
35#endif36
37#if defined(__ARM_EABI__)38#if defined(COMPILER_RT_ARMHF_TARGET)39AEABI_RTABI du_int __aeabi_f2ulz(fp_t a) { return __fixunssfdi(a); }40#else41COMPILER_RT_ALIAS(__fixunssfdi, __aeabi_f2ulz)42#endif43#endif44
45#if defined(__MINGW32__) && defined(__arm__)46COMPILER_RT_ALIAS(__fixunssfdi, __stou64)47#endif48