linux下编程用 编译软件

				/* Copyright (C) 2003 Free Software Foundation.								   Test that the -fwrapv command line option is accepted and disables				   "unsafe" optimizations that rely on undefined arithmetic overflow.								   Written by Roger Sayle, 24th March 2003.  */								/* { dg-do run } */				/* { dg-options "-O2 -fwrapv" } */								#include 								extern void abort ();								int test(int x)				{				  return (2*x)/2;				}								main()				{				  int x = INT_MAX;								  if (test(x) == x)				    abort ();				  return 0;				}