2013-05-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57396
	* tree-affine.c (double_int_constant_multiple_p): Properly
	return false for val == 0 and div != 0.

	* gfortran.fortran-torture/execute/pr57396.f90: New testcase.

From-SVN: r199350