1 //===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------===//
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 DOUBLE_PRECISION
10 #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 
16 COMPILER_RT_ABI du_int __fixunsdfdi(double a) {
17   if (a <= 0.0)
18     return 0;
19   su_int high = a / 4294967296.f;               // a / 0x1p32f;
20   su_int low = a - (double)high * 4294967296.f; // high * 0x1p32f;
21   return ((du_int)high << 32) | low;
22 }
23 
24 #else
25 // Support for systems that don't have hardware floating-point; there are no
26 // flags to set, and we don't want to code-gen to an unknown soft-float
27 // implementation.
28 
29 typedef du_int fixuint_t;
30 #include "fp_fixuint_impl.inc"
31 
32 COMPILER_RT_ABI du_int __fixunsdfdi(fp_t a) { return __fixuint(a); }
33 
34 #endif
35 
36 #if defined(__ARM_EABI__)
37 #if defined(COMPILER_RT_ARMHF_TARGET)
38 AEABI_RTABI du_int __aeabi_d2ulz(fp_t a) { return __fixunsdfdi(a); }
39 #else
40 COMPILER_RT_ALIAS(__fixunsdfdi, __aeabi_d2ulz)
41 #endif
42 #endif
43 
44 #if defined(__MINGW32__) && defined(__arm__)
45 COMPILER_RT_ALIAS(__fixunsdfdi, __dtou64)
46 #endif
47