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* toplev.c (dump_memory_report): Call dump_vec_loc_statistics. * vec.c: Include hashtab.h (vec_descriptor, ptr_hash_entry): New structures. (vec_desc_hash, vec_ptr_map): New static variables. (hash_descriptor, eq_descriptor, hash_ptr, eq_ptr, vec_descriptor, register_overhead, free_overhead, vec_heap_free): New functions. (vec_gc_o_reserve_1): ggc_free when resizing to 0. (vec_heap_o_reserve_1): free when resizing to 0; add statistics. (cmp_statistic, add_statistics, dump_vec_loc_statistics): New functions. From-SVN: r140277
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