Re: [09/13] Make remaining pointer hashes inherit from a generic class

[Jeff Law]

On 06/16/2015 03:05 AM, Richard Sandiford wrote:

This patch mops up the remaining pointer traits classes that didn't
inherit from any of the standard ones and just did their own thing.

gcc/
        * cgraph.h (asmname_hasher): Inherit from ggc_ptr_hash.  Remove
        redundant typedefs and members.
        * coverage.c (counts_entry): Inherit from pointer_hash.  Remove
        redundant typedefs.
        * dwarf2out.c (cu_hash_table_entry_hasher): Likewise.
        * ipa-devirt.c (odr_name_hasher): Likewise.
        (polymorphic_call_target_hasher): Likewise.
        * ira-costs.c (cost_classes_hasher): Likewise.
        * statistics.c (stats_counter_hasher): Likewise.
        * trans-mem.c (log_entry_hasher): Likewise.
        * tree-ssa-dom.c (expr_elt_hasher): Likewise.
        * tree-ssa-sccvn.c (vn_phi_hasher, vn_reference_hasher): Likewise.
        * tree-ssa-tail-merge.c (same_succ_def): Likewise.
        * var-tracking.c (variable_hasher): Likewise.
        * valtrack.h (dead_debug_hash_descr): Inherit from free_ptr_hash.
        Remove redundant typedefs and members.

OK.  Obviously dependent on prerequisites.

jeff