2011-04-19 Martin Jambor <mjambor@suse.cz>

2011-04-19  Martin Jambor  <mjambor@suse.cz>

	* ipa-cp.c (ipcp_process_devirtualization_opportunities): Devirtualize
	also according to actual contants.
	* gimple-fold.c (gimple_extract_devirt_binfo_from_cst): New function.
	(gimple_fold_call): Use it.
	* gimple.h (gimple_extract_devirt_binfo_from_cst): Declare.

	* testsuite/g++.dg/opt/devirt1.C: Bump to -O2, remove XFAIL.
	* testsuite/g++.dg/opt/devirt2.C: New test.
	* testsuite/g++.dg/ipa/devirt-g-1.C: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@172719 138bc75d-0d04-0410-961f-82ee72b054a4