[Bug middle-end/50708] Infinite loop between rshift_double and lshift_double if count is LONG_MIN

[rmansfield at qnx dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50708

--- Comment #2 from Ryan Mansfield <rmansfield at qnx dot com> 2011-10-29 
01:16:37 UTC ---
My large testcase reduced to:

void
foo ()
{
  unsigned int a = 1 << 0x80000000;
}