ipa-cp.c (ipcp_process_devirtualization_opportunities): Take into account anc_offset...

ipa-cp.c (ipcp_process_devirtualization_opportunities): Take into account anc_offset and otr_type from the indirect edge info.

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

	* ipa-cp.c (ipcp_process_devirtualization_opportunities): Take into
	account anc_offset and otr_type from the indirect edge info.
	* ipa-prop.c (get_ancestor_addr_info): New function.
	(compute_complex_ancestor_jump_func): Assignment analysis moved to
	get_ancestor_addr_info, call it.
	(ipa_note_param_call): Do not initialize information about polymorphic
	calls, return the indirect call graph edge.  Remove the last
	parameter, adjust all callers.
	(ipa_analyze_virtual_call_uses): Process also calls to ancestors of
	parameters.  Initialize polymorphic information in the indirect edge.

	* testsuite/g++.dg/ipa/devirt-7.C: New test.

From-SVN: r172716