compiler-rt/lib/builtins/floatuntitf.c

   1 //===-- lib/floatuntitf.c - uint128 -> quad-precision conversion --*- C -*-===//
   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 // This file implements tu_int to quad-precision conversion for the
  10 // compiler-rt library in the IEEE-754 default round-to-nearest, ties-to-even
  11 // mode.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #define QUAD_PRECISION
  16 #include "fp_lib.h"
  17 #include "int_lib.h"
  18
  19 #if defined(CRT_HAS_TF_MODE)
  20 #define SRC_U128
  21 #define DST_QUAD
  22 #include "int_to_fp_impl.inc"
  23
  24 // Returns: convert a tu_int to a fp_t, rounding toward even.
  25
  26 // Assumption: fp_t is a IEEE 128 bit floating point type
  27 //             tu_int is a 128 bit integral type
  28
  29 // seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm
  30 // mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm
  31 // mmmm mmmm mmmm
  32
  33 COMPILER_RT_ABI fp_t __floatuntitf(tu_int a) { return __floatXiYf__(a); }
  34
  35 #endif