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* tree-cfg.c (edge_to_cases): Renamed from edge_to_case_leader. (edge_to_cases_elt): Renamed from edge_to_case_leader. (edge_to_cases_hash): Renamed from edge_to_case_leader_hash. (edge_to_cases_eq): Renamed from edge_to_case_leader_eq. (edge_to_cases_cleanup, recording_case_labels_p): New functions. (get_cases_for_edge): New function. (start_recording_case_labels, end_recording_case_labels): Similarly. (record_switch_edge): Don't muck with the CASE_LABEL. Instead chain equivalent CASE_LABEL_EXPRs together. (get_case_leader_for_edge, get_case_leader_for_edge_hash): Kill. (make_switch_expr_edges): Do not record edge/cases here. (cleanup_tree_cfg): Record cases around the call to thread_jumps. (split_critical_edges): Record cases around the edge splitting code. (cleanup_dead_labels): Use CASE_LABEL again. (tree_redirect_edge_and_branch): If we have a mapping from edge to cases, use it to handle redirections. Else do it the slow way. * tree.h (CASE_LEADER_OR_LABEL): Kill. (CASE_LABEL): Revert to just looking at the tree's second operand. * tree.c (get_case_label): Kill. From-SVN: r90817
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