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2019-06-04 Martin Liska <mliska@suse.cz> * ipa-icf.h (struct sem_usage_pair_hash): New. (sem_usage_pair_hash::hash): Likewise. (sem_usage_pair_hash::equal): Likewise. (struct sem_usage_hash): Likewise. * ipa-icf.c (sem_item::sem_item): Initialize referenced_by_count. (sem_item::add_reference): Register a reference in ref_map and not in target->usages. (sem_item::setup): Remove initialization of dead vectors. (sem_item::~sem_item): Remove usage of dead vectors. (sem_item::dump): Remove dump of references. (sem_item_optimizer::sem_item_optimizer): Initialize m_references. (sem_item_optimizer::read_section): Remove useless dump. (sem_item_optimizer::parse_funcs_and_vars): Likewise here. (sem_item_optimizer::build_graph): Pass m_references to ::add_reference. (sem_item_optimizer::verify_classes): Remove usage of dead vectors. (sem_item_optimizer::traverse_congruence_split): Return true when a class is split. (sem_item_optimizer::do_congruence_step_for_index): Use hash_map for look up of (sem_item *, index). That brings significant speed up. (sem_item_optimizer::do_congruence_step): Return true when a split is done. (congruence_class::is_class_used): Use referenced_by_count. 2019-06-04 Martin Liska <mliska@suse.cz> * c-c++-common/goacc/acc-icf.c: Change scanned pattern. * gfortran.dg/goacc/pr78027.f90: Likewise. From-SVN: r271900
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