gfortran.h (gfc_expr): Add no_bounds_check field.

gfortran.h (gfc_expr): Add no_bounds_check field.

2018-06-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.h (gfc_expr): Add no_bounds_check field.
	* frontend-passes.c (get_array_inq_function): Set no_bounds_check
	on function and function argument.
	(inline_matmul_assign): Set no_bounds_check on zero expression
	and on lhs of zero expression.
	Also handle A1B2 case if realloc on assigment is active.
	* trans-array.c (gfc_conv_array_ref): Don't do range checking
	if expr has no_bounds_check set.
	(gfc_conv_expr_descriptor): Set no_bounds_check on ss if expr
	has it set.
	* trans-expr.c (gfc_trans_assignment_1): Set no_bounds_check
	on lss and lss if the corresponding expressions have it set.

2018-06-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/inline_matmul_23.f90: New test.

From-SVN: r261388