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author | Diego Novillo <dnovillo@redhat.com> | 2007-04-11 16:14:06 +0000 |
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committer | Diego Novillo <dnovillo@gcc.gnu.org> | 2007-04-11 12:14:06 -0400 |
commit | e9e0aa2c9677074a7912521f4fa1aebf53640198 (patch) | |
tree | 40007b60a5085028843a5b427234f0fd32072b58 /gcc/tree-flow-inline.h | |
parent | 574e75f5fb8c1ee2e38d6da90a88bb6c546ebb84 (diff) | |
download | gcc-e9e0aa2c9677074a7912521f4fa1aebf53640198.zip gcc-e9e0aa2c9677074a7912521f4fa1aebf53640198.tar.gz gcc-e9e0aa2c9677074a7912521f4fa1aebf53640198.tar.bz2 |
re PR tree-optimization/30735 (50% slow down due to mem-ssa merge)
PR 30735
PR 31090
* doc/invoke.texi: Document --params max-aliased-vops and
avg-aliased-vops.
* tree-ssa-operands.h (get_mpt_for, dump_memory_partitions,
debug_memory_partitions): Move to tree-flow.h
* params.h (AVG_ALIASED_VOPS): Define.
* tree-ssa-alias.c (struct mp_info_def): Remove. Update all
users.
(mp_info_t): Likewise.
(get_mem_sym_stats_for): New.
(set_memory_partition): Move from tree-flow-inline.h.
(mark_non_addressable): Only clear the set of symbols for the
partition if it exists.
(dump_memory_partitions): Move from tree-ssa-operands.c
(debug_memory_partitions): Likewise.
(need_to_partition_p): New.
(dump_mem_ref_stats): New.
(debug_mem_ref_stats): New.
(dump_mem_sym_stats): New.
(debug_mem_sym_stats): New.
(update_mem_sym_stats_from_stmt): New.
(compare_mp_info_entries): New.
(mp_info_cmp): Call it.
(sort_mp_info): Change argument to a list of mem_sym_stats_t
objects.
(get_mpt_for): Move from tree-ssa-operands.c.
(find_partition_for): New.
(create_partition_for): Remove.
(estimate_vop_reduction): New.
(update_reference_counts): New.
(build_mp_info): New.
(compute_memory_partitions): Refactor.
Document new heuristic.
Call build_mp_info, update_reference_counts,
find_partition_for and estimate_vop_reduction.
(compute_may_aliases): Populate virtual operands before
calling debugging dumps.
(delete_mem_sym_stats): New.
(delete_mem_ref_stats): New.
(init_mem_ref_stats): New.
(init_alias_info): Call it.
(maybe_create_global_var): Remove alias_info argument.
Get number of call sites and number of pure/const call sites
from gimple_mem_ref_stats().
(dump_alias_info): Call dump_memory_partitions first.
(dump_points_to_info_for): Show how many times a pointer has
been dereferenced.
* opts.c (decode_options): For -O2 set --param
max-aliased-vops to 500.
For -O3 set --param max-aliased-vops to 1000 and --param
avg-aliased-vops to 3.
* fortran/options.c (gfc_init_options): Remove assignment to
MAX_ALIASED_VOPS.
* tree-flow-inline.h (gimple_mem_ref_stats): New.
* tree-dfa.c (dump_variable): Dump memory reference
statistics.
Dump NO_ALIAS* settings.
(referenced_var_lookup): Tidy.
(mem_sym_stats): New.
* tree-ssa-copy.c (may_propagate_copy): Return true if DEST
and ORIG are different SSA names for a memory partition.
* tree-ssa.c (delete_tree_ssa): Call delete_mem_ref_stats.
* tree-flow.h (struct mem_sym_stats_d): Define.
(mem_sym_stats_t): Define.
(struct mem_ref_stats_d): Define.
(struct gimple_df): Add field mem_ref_stats.
(enum noalias_state): Define.
(struct var_ann_d): Add bitfield noalias_state.
(mem_sym_stats, delete_mem_ref_stats, dump_mem_ref_stats,
debug_mem_ref_stats, debug_memory_partitions,
debug_mem_sym_stats): Declare.
* tree-ssa-structalias.c (update_alias_info): Update call
sites, pure/const call sites and asm sites in structure
returned by gimple_mem_ref_stats.
Remove local variable IS_POTENTIAL_DEREF.
Increase NUM_DEREFS if the memory expression is a potential
dereference.
Call update_mem_sym_stats_from_stmt.
If the memory references memory, call
update_mem_sym_stats_from_stmt for all the direct memory
symbol references found.
(intra_create_variable_infos): Set noalias_state field for
pointer arguments according to the value of
flag_argument_noalias.
* tree-ssa-structalias.h (struct alias_info): Remove fields
num_calls_found and num_pure_const_calls_found.
(update_mem_sym_stats_from_stmt): Declare.
* params.def (PARAM_MAX_ALIASED_VOPS): Change description.
Set default value to 100.
(PARAM_AVG_ALIASED_VOPS): Define.
From-SVN: r123719
Diffstat (limited to 'gcc/tree-flow-inline.h')
-rw-r--r-- | gcc/tree-flow-inline.h | 32 |
1 files changed, 7 insertions, 25 deletions
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h index f7728e4..054ddfa 100644 --- a/gcc/tree-flow-inline.h +++ b/gcc/tree-flow-inline.h @@ -871,31 +871,6 @@ memory_partition (tree sym) return tag; } - -/* Set MPT to be the memory partition associated with symbol SYM. */ - -static inline void -set_memory_partition (tree sym, tree mpt) -{ -#if defined ENABLE_CHECKING - if (mpt) - gcc_assert (TREE_CODE (mpt) == MEMORY_PARTITION_TAG - && !is_gimple_reg (sym)); -#endif - var_ann (sym)->mpt = mpt; - if (mpt) - { - bitmap_set_bit (MPT_SYMBOLS (mpt), DECL_UID (sym)); - - /* MPT inherits the call-clobbering attributes from SYM. */ - if (is_call_clobbered (sym)) - { - MTAG_GLOBAL (mpt) = 1; - mark_call_clobbered (mpt, ESCAPE_IS_GLOBAL); - } - } -} - /* Return true if NAME is a memory factoring SSA name (i.e., an SSA name for a memory partition. */ @@ -1810,4 +1785,11 @@ gimple_ssa_operands (struct function *fun) { return &fun->gimple_df->ssa_operands; } + +/* Map describing reference statistics for function FN. */ +static inline struct mem_ref_stats_d * +gimple_mem_ref_stats (struct function *fn) +{ + return &fn->gimple_df->mem_ref_stats; +} #endif /* _TREE_FLOW_INLINE_H */ |