[Bug c/50996] segfault cross-compiling for lm32

[rubini at gnudd dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50996

--- Comment #1 from Alessandro Rubini <rubini at gnudd dot com> 2011-11-05 17:20:41 UTC ---

I removed more stuff. What follows is the minimal file that triggers
the error. Swapping the && operands won't make it segfault



void
envz_entry(char *envz)
{
  char *buf_ptr = (char *)envz;

  while(1)
      while(*buf_ptr && buf_ptr != envz)
          buf_ptr--;
}