Example program works with option -O1, but not with -O2
        Problem occurs with gcc 4.3.2 and 4.4.0, but not with 4.2.4

Environment:
System: Linux andiunx 2.6.27-11-generic #1 SMP Fri Dec 19 16:29:52 UTC 2008 i686 GNU/Linux
	
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ./configure

How-To-Repeat:
	Compile the following program with
            gcc -O2 foobar.c

        extern int printf (__const char *__restrict __format, ...);
        
        int
        main ()
        {
          int j;
        
          for (j = 1; j > 0; j += j)
                printf("%d\n",j);
          return 0;
        }