r223708 - in /trunk/gcc/ada: ChangeLog gcc-inte...

[ebotcazou at gcc dot gnu dot org]

Author: ebotcazou
Date: Tue May 26 19:18:15 2015
New Revision: 223708

URL: https://gcc.gnu.org/viewcvs?rev=223708&root=gcc&view=rev
Log:
	* gcc-interface/gigi.h (gnat_stabilize_reference): Adjust prototype.
	* gcc-interface/decl.c (gnat_to_gnu_entity): Do not rely on const_flag
 	to detect constant renamings.  Be prepared for specific pattern of
	renamed object based on function calls.  Create a constant object
	for the renaming of a NULL_EXPR or of a CONSTRUCTOR.  Adjust calls
	to gnat_stabilize_reference and tidy up.  Remove redundant tests.
	(elaborate_expression_1): Remove obsolete test and tidy up.
	* gcc-interface/trans.c (Call_to_gnu): Do not stabilize In/Out or Out
	parameters passed by reference.
	(gnat_to_gnu) <N_Selected_Component>: Remove redundant protection again
	side-effects.
	Use gnat_protect_expr instead of gnat_stabilize_reference for general
	protection against side-effects.
	* gcc-interface/utils2.c (gnat_stable_expr_p): New predicate.
	(gnat_save_expr): Invoke it.
	(gnat_protect_expr): Likewise.
	(gnat_stabilize_reference_1): Likewise.  Remove useless propagation
	of TREE_THIS_NOTRAP.
	(gnat_stabilize_reference): Remove parameter and adjust throughout.
	Delete ADDR_EXDR, COMPOUND_EXPR and CONSTRUCTOR cases.
	Restrict CALL_EXPR case to atomic loads and tweak ERROR_MARK case.

Modified:
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/gcc-interface/decl.c
    trunk/gcc/ada/gcc-interface/gigi.h
    trunk/gcc/ada/gcc-interface/trans.c
    trunk/gcc/ada/gcc-interface/utils2.c