xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/fixsfdi.c (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
1 //===-- fixsfdi.c - Implement __fixsfdi -----------------------------------===//
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_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 __fixunssfdi(float a);
17 
18 COMPILER_RT_ABI di_int __fixsfdi(float a) {
19   if (a < 0.0f) {
20     return -__fixunssfdi(-a);
21   }
22   return __fixunssfdi(a);
23 }
24 
25 #else
26 // 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 
30 typedef di_int fixint_t;
31 typedef du_int fixuint_t;
32 #include "fp_fixint_impl.inc"
33 
34 COMPILER_RT_ABI di_int __fixsfdi(fp_t a) { return __fixint(a); }
35 
36 #endif
37 
38 #if defined(__ARM_EABI__)
39 #if defined(COMPILER_RT_ARMHF_TARGET)
40 AEABI_RTABI di_int __aeabi_f2lz(fp_t a) { return __fixsfdi(a); }
41 #else
42 COMPILER_RT_ALIAS(__fixsfdi, __aeabi_f2lz)
43 #endif
44 #endif
45 
46 #if defined(__MINGW32__) && defined(__arm__)
47 COMPILER_RT_ALIAS(__fixsfdi, __stoi64)
48 #endif
49