1 /* ===-- fixunssfdi.c - Implement __fixunssfdi -----------------------------===
2  *
3  *                     The LLVM Compiler Infrastructure
4  *
5  * This file is dual licensed under the MIT and the University of Illinois Open
6  * Source Licenses. See LICENSE.TXT for details.
7  *
8  * ===----------------------------------------------------------------------===
9  */
10 
11 #define SINGLE_PRECISION
12 #include "fp_lib.h"
13 
ARM_EABI_FNALIAS(f2ulz,fixunssfdi)14 ARM_EABI_FNALIAS(f2ulz, fixunssfdi)
15 
16 #ifndef __SOFT_FP__
17 /* Support for systems that have hardware floating-point; can set the invalid
18  * flag as a side-effect of computation.
19  */
20 
21 COMPILER_RT_ABI du_int
22 __fixunssfdi(float a)
23 {
24     if (a <= 0.0f) return 0;
25     double da = a;
26     su_int high = da / 4294967296.f;               /* da / 0x1p32f; */
27     su_int low = da - (double)high * 4294967296.f; /* high * 0x1p32f; */
28     return ((du_int)high << 32) | low;
29 }
30 
31 #else
32 /* Support for systems that don't have hardware floating-point; there are no
33  * flags to set, and we don't want to code-gen to an unknown soft-float
34  * implementation.
35  */
36 
37 typedef du_int fixuint_t;
38 #include "fp_fixuint_impl.inc"
39 
40 COMPILER_RT_ABI du_int
41 __fixunssfdi(fp_t a) {
42     return __fixuint(a);
43 }
44 
45 #endif
46