Add sem_item::m_hash_set (PR ipa/78309)
PR ipa/78309
* ipa-icf.c (void sem_item::set_hash): Update m_hash_set.
(sem_function::get_hash): Use the new field.
(sem_function::parse): Remove an argument from ctor.
(sem_variable::parse): Likewise.
(sem_variable::get_hash): Use the new field.
(sem_item_optimizer::read_section): Use new ctor and set hash.
* ipa-icf.h: _hash is removed from sem_item::sem_item,
sem_variable::sem_variable, sem_function::sem_function.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242687 138bc75d-0d04-0410-961f-82ee72b054a4