2010-04-27 Manuel López-Ibáñez <manu@gcc.gnu.org>
Jan Hubicka <hubicka@ucw.cz>
* doc/invoke.texi (-Wsuggest-attribute=const,
-Wsuggest-attribute=pure): Document.
* ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
(function_always_visible_to_compiler_p,
suggest_attribute, warn_function_pure, warn_function_const):
New functions.
(check_call): Improve debug info.
(analyze_function): Do not check availability.
(add_new_function): Check availability.
(propagate): Output warnings.
(skip_function_for_local_pure_const): New function.
(local_pure_const): Use it; output warnings.
* common.opt (Wsuggest-attribute=const,
Wsuggest-attribute=pure): New.
testsuite/
* gcc.dg/pure-2.c: New testcase.
* gcc.dg/const-1.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158803
138bc75d-0d04-0410-961f-
82ee72b054a4