gcc/fortran:

2012-05-05  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/49010
	PR fortran/24518
	* intrinsic.texi (MOD, MODULO): Mention sign and magnitude of result.
	* simplify.c (gfc_simplify_mod): Use mpfr_fmod.
	(gfc_simplify_modulo): Likewise, use copysign to fix the result if
	zero.
	* trans-intrinsic.c (gfc_conv_intrinsic_mod): Remove fallback as
	builtin_fmod is always available. For modulo, call copysign to fix
	the result when signed zeros are enabled.


testsuite:

2012-05-05  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/49010
	PR fortran/24518
	* gfortran.dg/mod_sign0_1.f90: New test.
	* gfortran.dg/mod_large_1.f90: New test.

From-SVN: r187191