gcc/
	PR middle-end/66311
	* wide-int.cc (wi::from_mpz): Make sure that absolute mpz value
	is zero- rather than sign-extended.

gcc/testsuite/
2015-08-05  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	PR middle-end/66311
	* gfortran.dg/pr66311.f90: New file.

From-SVN: r226632