re PR fortran/29786 (Initialization of overlapping variables: Not implemented)

re PR fortran/29786 (Initialization of overlapping variables: Not implemented)

2007-06-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/29786
	PR fortran/30875
	* trans-common.c (get_init_field): New function.
	(create_common): Call get_init_field for overlapping
	initializers in equivalence blocks.
	* resolve.c (resolve_equivalence_derived, resolve_equivalence):
	Remove constraints on initializers in equivalence blocks.
	* target-memory.c (expr_to_char, gfc_merge_initializers):
	New functions.
	(encode_derived): Add the bit offset to the byte offset to get
	the total offset to the field.
	* target-memory.h : Add prototype for gfc_merge_initializers.

2007-06-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/29786
	* gfortran.dg/equiv_7.f90: New test.
	* gfortran.dg/equiv_constraint_7.f90: Change error message.

	PR fortran/30875
	* gfortran.dg/equiv_constraint_5.f90: Correct code and error.

From-SVN: r125628