* gcc-interface/trans.c (Regular_Loop_to_gnu): Do not rotate the loop
	if -Og is enabled.
	(build_return_expr): Do not perform NRV if -Og is enabled.
	(Subprogram_Body_to_gnu): Likewise.
	(gnat_to_gnu) <N_Simple_Return_Statement>: Likewise.
	(Handled_Sequence_Of_Statements_to_gnu): Do not inline finalizers if
	-Og is enabled.
	* gcc-interface/utils.c (convert_to_index_type): Return early if -Og
	is enabled.

From-SVN: r276047