Home | History | Annotate | Line # | Download | only in builtins 
      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 
     14 #ifndef __SOFT_FP__
     15 /* Support for systems that have hardware floating-point; can set the invalid
     16  * flag as a side-effect of computation.
     17  */
     18 
     19 COMPILER_RT_ABI du_int
     20 __fixunssfdi(float a)
     21 {
     22     if (a <= 0.0f) return 0;
     23     double da = a;
     24     su_int high = da / 4294967296.f;               /* da / 0x1p32f; */
     25     su_int low = da - (double)high * 4294967296.f; /* high * 0x1p32f; */
     26     return ((du_int)high << 32) | low;
     27 }
     28 
     29 #else
     30 /* Support for systems that don't have hardware floating-point; there are no
     31  * flags to set, and we don't want to code-gen to an unknown soft-float
     32  * implementation.
     33  */
     34 
     35 typedef du_int fixuint_t;
     36 #include "fp_fixuint_impl.inc"
     37 
     38 COMPILER_RT_ABI du_int
     39 __fixunssfdi(fp_t a) {
     40     return __fixuint(a);
     41 }
     42 
     43 #endif
     44 
     45 #if defined(__ARM_EABI__)
     46 #if defined(COMPILER_RT_ARMHF_TARGET)
     47 AEABI_RTABI du_int __aeabi_f2ulz(fp_t a) {
     48   return __fixunssfdi(a);
     49 }
     50 #else
     51 AEABI_RTABI du_int __aeabi_f2ulz(fp_t a) COMPILER_RT_ALIAS(__fixunssfdi);
     52 #endif
     53 #endif
     54