* tree.c (list_equal_p): New function.
* tree.h (list_equal_p): Declare.
* coretypes.h (edge_def, edge, const_edge, basic_block_def
basic_block_def, basic_block, const_basic_block): New.
* tree-eh.c (make_eh_edge): EH edges are not abnormal.
(redirect_eh_edge): New function.
(make_eh_edge_update_phi): EH edges are not abnormal.
* except.c: Include tree-flow.h.
(list_match): New function.
(eh_region_replaceable_by_p): New function.
(replace_region): New function.
(hash_type_list): New function.
(hash_eh_region): New function.
(eh_regions_equal_p): New function.
(merge_peers): New function.
(remove_unreachable_regions): Verify EH tree when checking;
merge peers.
(copy_eh_region_1): New function.
(copy_eh_region): New function.
(push_reachable_handler): New function.
(build_post_landing_pads, dw2_build_landing_pads): Be ready for
regions without label but with live RESX.
* except.h (redirect_eh_edge_to_label): New.
* tree-flow.h (redirect_eh_edge): New.
* coretypes.h (edge_def, edge, const_edge, basic_block_def
basic_block_def, basic_block, const_basic_block): Remove.
* Makefile.in (except.o): Add dependency on tree-flow.h
* tree-cfg.c (gimple_redirect_edge_and_branch): Handle EH edges.
* basic-block.h (edge, const_edge, basic_block, const_basic_block):
Remove.
From-SVN: r146776
