libc/src/stdfix/uhksqrtus.cpp

   1 //===-- Implementation of uhksqrtus function ------------------------------===//
   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 #include "uhksqrtus.h"
  10 #include "src/__support/common.h"
  11 #include "src/__support/fixed_point/sqrt.h"
  12 #include "src/__support/macros/config.h"
  13
  14 namespace LIBC_NAMESPACE_DECL {
  15
  16 LLVM_LIBC_FUNCTION(unsigned short accum, uhksqrtus, (unsigned short x)) {
  17 #ifdef LIBC_FAST_MATH
  18   return fixed_point::isqrt_fast(x);
  19 #else
  20   return fixed_point::isqrt(x);
  21 #endif
  22 }
  23
  24 } // namespace LIBC_NAMESPACE_DECL