On Fri, Mar 27, 2015 at 4:26 PM, Jan Hubicka <[email protected]> wrote:
> Hi,
> I notieced that GGC hash tables are now accounted to
> hash-table.h:alloc_entries
> that is not very informative (we do not have any stats for heap hash tables
> that
> would be nice to have).
>
> This patch fixes the first problem by adding annotations. OK (perhaps for
> next stage1?)
Ok for stage1.
Thanks,
Richard.
> Bootstrapped/regtested x86_64-linux with and without gathering stats.
>
> Honza
>
> * hash-table.c (hash_table constructor): Add mem stats.
> (alloc_entries): Likewise.
> Index: hash-table.h
> ===================================================================
> --- hash-table.h (revision 221734)
> +++ hash-table.h (working copy)
> @@ -615,7 +615,7 @@ class hash_table<Descriptor, Allocator,
> typedef typename Descriptor::compare_type compare_type;
>
> public:
> - hash_table (size_t);
> + hash_table (size_t CXX_MEM_STAT_INFO);
> ~hash_table ();
>
> /* Current size (in entries) of the hash table. */
> @@ -751,7 +751,8 @@ private:
> };
>
> template<typename Descriptor, template<typename Type> class Allocator>
> -hash_table<Descriptor, Allocator, false>::hash_table (size_t size) :
> +hash_table<Descriptor, Allocator, false>::hash_table (size_t size
> + MEM_STAT_DECL) :
> m_n_elements (0), m_n_deleted (0), m_searches (0), m_collisions (0)
> {
> unsigned int size_prime_index;
> @@ -1116,7 +1117,7 @@ class hash_table<Descriptor, Allocator,
> typedef typename Descriptor::compare_type compare_type;
>
> public:
> - explicit hash_table (size_t, bool ggc = false);
> + explicit hash_table (size_t, bool ggc = false CXX_MEM_STAT_INFO);
> ~hash_table ();
>
> /* Create a hash_table in gc memory. */
> @@ -1245,7 +1246,7 @@ private:
> template<typename T> friend void gt_pch_nx (hash_table<T> *,
> gt_pointer_operator, void *);
>
> - value_type *alloc_entries (size_t n) const;
> + value_type *alloc_entries (size_t n CXX_MEM_STAT_INFO) const;
> value_type *find_empty_slot_for_expand (hashval_t);
> void expand ();
> static bool is_deleted (value_type &v)
> @@ -1295,7 +1296,8 @@ private:
> };
>
> template<typename Descriptor, template<typename Type> class Allocator>
> -hash_table<Descriptor, Allocator, true>::hash_table (size_t size, bool ggc) :
> +hash_table<Descriptor, Allocator, true>::hash_table (size_t size, bool ggc
> + MEM_STAT_DECL) :
> m_n_elements (0), m_n_deleted (0), m_searches (0), m_collisions (0),
> m_ggc (ggc)
> {
> @@ -1304,7 +1306,7 @@ hash_table<Descriptor, Allocator, true>:
> size_prime_index = hash_table_higher_prime_index (size);
> size = prime_tab[size_prime_index].prime;
>
> - m_entries = alloc_entries (size);
> + m_entries = alloc_entries (size PASS_MEM_STAT);
> m_size = size;
> m_size_prime_index = size_prime_index;
> }
> @@ -1326,14 +1328,15 @@ hash_table<Descriptor, Allocator, true>:
>
> template<typename Descriptor, template<typename Type> class Allocator>
> inline typename hash_table<Descriptor, Allocator, true>::value_type *
> -hash_table<Descriptor, Allocator, true>::alloc_entries (size_t n) const
> +hash_table<Descriptor, Allocator, true>::alloc_entries
> + (size_t n MEM_STAT_DECL) const
> {
> value_type *nentries;
>
> if (!m_ggc)
> nentries = Allocator <value_type> ::data_alloc (n);
> else
> - nentries = ::ggc_cleared_vec_alloc<value_type> (n);
> + nentries = ::ggc_cleared_vec_alloc<value_type> (n PASS_MEM_STAT);
>
> gcc_assert (nentries != NULL);
> for (size_t i = 0; i < n; i++)
