compiler-rt/lib/builtins/fixdfdi.c

   1 //===-- fixdfdi.c - Implement __fixdfdi -----------------------------------===//
   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
  18 COMPILER_RT_ABI di_int __fixdfdi(double a) {
  19   if (a < 0.0) {
  20     return -__fixunsdfdi(-a);
  21   }
  22   return __fixunsdfdi(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 __fixdfdi(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_d2lz(fp_t a) { return __fixdfdi(a); }
  41 #else
  42 COMPILER_RT_ALIAS(__fixdfdi, __aeabi_d2lz)
  43 #endif
  44 #endif
  45
  46 #if defined(__MINGW32__) && defined(__arm__)
  47 COMPILER_RT_ALIAS(__fixdfdi, __dtoi64)
  48 #endif