r204830 - in /trunk/gcc: ChangeLog cfgexpand.c ...

[ebotcazou@gcc.gnu.org]

Author: ebotcazou
Date: Thu Nov 14 23:58:39 2013
New Revision: 204830

URL: http://gcc.gnu.org/viewcvs?rev=204830&root=gcc&view=rev
Log:
	* cfgexpand.c (defer_stack_allocation): When optimization is enabled,
	defer allocation of DECL_IGNORED_P variables at toplevel unless really
	small.  Factorize size threshold computation from the existing one.
	(expand_used_vars): Refine comment.

Added:
    trunk/gcc/testsuite/gnat.dg/stack_usage1b.adb
    trunk/gcc/testsuite/gnat.dg/stack_usage1c.adb
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/testsuite/ChangeLog