compiler-rt/lib/builtins/negdi2.c

   1 //===-- negdi2.c - Implement __negdi2 -------------------------------------===//
   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 __negdi2 for the compiler_rt library.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "int_lib.h"
  14
  15 // Returns: -a
  16
  17 COMPILER_RT_ABI di_int __negdi2(di_int a) {
  18   // Note: this routine is here for API compatibility; any sane compiler
  19   // should expand it inline.
  20   return -(du_int)a;
  21 }