From: Martin Liska Date: Thu, 9 Jan 2020 11:29:23 +0000 (+0100) Subject: Add Optimization for various IPA parameters. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fdfd7f53ba8f363c31a1cbb5310f92ecfc52cbfe;p=gcc.git Add Optimization for various IPA parameters. 2020-01-09 Martin Liska * auto-profile.c (auto_profile): Use opt_for_fn for a parameter. * ipa-cp.c (ipcp_lattice::add_value): Likewise. (propagate_vals_across_arith_jfunc): Likewise. (hint_time_bonus): Likewise. (incorporate_penalties): Likewise. (good_cloning_opportunity_p): Likewise. (perform_estimation_of_a_value): Likewise. (estimate_local_effects): Likewise. (ipcp_propagate_stage): Likewise. * ipa-fnsummary.c (decompose_param_expr): Likewise. (set_switch_stmt_execution_predicate): Likewise. (analyze_function_body): Likewise. * ipa-inline-analysis.c (offline_size): Likewise. * ipa-inline.c (early_inliner): Likewise. * ipa-prop.c (ipa_analyze_node): Likewise. (ipcp_transform_function): Likewise. * ipa-sra.c (process_scan_results): Likewise. (ipa_sra_summarize_function): Likewise. * params.opt: Rename ipcp-unit-growth to ipa-cp-unit-growth. Add Optimization for various IPA-related parameters. From-SVN: r280040 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2339a87f99b..0891e98ebd3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,28 @@ +2020-01-09 Martin Liska + + * auto-profile.c (auto_profile): Use opt_for_fn + for a parameter. + * ipa-cp.c (ipcp_lattice::add_value): Likewise. + (propagate_vals_across_arith_jfunc): Likewise. + (hint_time_bonus): Likewise. + (incorporate_penalties): Likewise. + (good_cloning_opportunity_p): Likewise. + (perform_estimation_of_a_value): Likewise. + (estimate_local_effects): Likewise. + (ipcp_propagate_stage): Likewise. + * ipa-fnsummary.c (decompose_param_expr): Likewise. + (set_switch_stmt_execution_predicate): Likewise. + (analyze_function_body): Likewise. + * ipa-inline-analysis.c (offline_size): Likewise. + * ipa-inline.c (early_inliner): Likewise. + * ipa-prop.c (ipa_analyze_node): Likewise. + (ipcp_transform_function): Likewise. + * ipa-sra.c (process_scan_results): Likewise. + (ipa_sra_summarize_function): Likewise. + * params.opt: Rename ipcp-unit-growth to + ipa-cp-unit-growth. Add Optimization for various + IPA-related parameters. + 2020-01-09 Richard Biener PR middle-end/93054 diff --git a/gcc/auto-profile.c b/gcc/auto-profile.c index 6aca2f29022..c5e9f1336a7 100644 --- a/gcc/auto-profile.c +++ b/gcc/auto-profile.c @@ -1628,7 +1628,8 @@ auto_profile (void) function before annotation, so the profile inside bar@loc_foo2 will be useful. */ autofdo::stmt_set promoted_stmts; - for (int i = 0; i < param_early_inliner_max_iterations; i++) + for (int i = 0; i < opt_for_fn (node->decl, + param_early_inliner_max_iterations); i++) { if (!flag_value_profile_transformations || !autofdo::afdo_vpt_for_early_inline (&promoted_stmts)) diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 7515a9504f6..64bbf7f2513 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -1860,7 +1860,8 @@ ipcp_lattice::add_value (valtype newval, cgraph_edge *cs, return false; } - if (!unlimited && values_count == param_ipa_cp_value_list_size) + if (!unlimited && values_count == opt_for_fn (cs->caller->decl, + param_ipa_cp_value_list_size)) { /* We can only free sources, not the values themselves, because sources of other values in this SCC might point to them. */ @@ -2002,12 +2003,15 @@ propagate_vals_across_arith_jfunc (cgraph_edge *cs, { int i; - if (src_lat != dest_lat || param_ipa_cp_max_recursive_depth < 1) + int max_recursive_depth = opt_for_fn(cs->caller->decl, + param_ipa_cp_max_recursive_depth); + if (src_lat != dest_lat || max_recursive_depth < 1) return dest_lat->set_contains_variable (); /* No benefit if recursive execution is in low probability. */ if (cs->sreal_frequency () * 100 - <= ((sreal) 1) * param_ipa_cp_min_recursive_probability) + <= ((sreal) 1) * opt_for_fn (cs->caller->decl, + param_ipa_cp_min_recursive_probability)) return dest_lat->set_contains_variable (); auto_vec *, 8> val_seeds; @@ -2037,7 +2041,7 @@ propagate_vals_across_arith_jfunc (cgraph_edge *cs, /* Recursively generate lattice values with a limited count. */ FOR_EACH_VEC_ELT (val_seeds, i, src_val) { - for (int j = 1; j < param_ipa_cp_max_recursive_depth; j++) + for (int j = 1; j < max_recursive_depth; j++) { tree cstval = get_val_across_arith_op (opcode, opnd1_type, opnd2, src_val, res_type); @@ -3173,11 +3177,11 @@ devirtualization_time_bonus (struct cgraph_node *node, /* Return time bonus incurred because of HINTS. */ static int -hint_time_bonus (ipa_hints hints) +hint_time_bonus (cgraph_node *node, ipa_hints hints) { int result = 0; if (hints & (INLINE_HINT_loop_iterations | INLINE_HINT_loop_stride)) - result += param_ipa_cp_loop_hint_bonus; + result += opt_for_fn (node->decl, param_ipa_cp_loop_hint_bonus); return result; } @@ -3185,15 +3189,18 @@ hint_time_bonus (ipa_hints hints) cloning goodness evaluation, do so. */ static inline int64_t -incorporate_penalties (ipa_node_params *info, int64_t evaluation) +incorporate_penalties (cgraph_node *node, ipa_node_params *info, + int64_t evaluation) { if (info->node_within_scc && !info->node_is_self_scc) evaluation = (evaluation - * (100 - param_ipa_cp_recursion_penalty)) / 100; + * (100 - opt_for_fn (node->decl, + param_ipa_cp_recursion_penalty))) / 100; if (info->node_calling_single_call) evaluation = (evaluation - * (100 - param_ipa_cp_single_call_penalty)) + * (100 - opt_for_fn (node->decl, + param_ipa_cp_single_call_penalty))) / 100; return evaluation; @@ -3215,6 +3222,7 @@ good_cloning_opportunity_p (struct cgraph_node *node, int time_benefit, gcc_assert (size_cost > 0); class ipa_node_params *info = IPA_NODE_REF (node); + int eval_threshold = opt_for_fn (node->decl, param_ipa_cp_eval_threshold); if (max_count > profile_count::zero ()) { int factor = RDIV (count_sum.probability_in @@ -3222,7 +3230,7 @@ good_cloning_opportunity_p (struct cgraph_node *node, int time_benefit, * 1000, REG_BR_PROB_BASE); int64_t evaluation = (((int64_t) time_benefit * factor) / size_cost); - evaluation = incorporate_penalties (info, evaluation); + evaluation = incorporate_penalties (node, info, evaluation); if (dump_file && (dump_flags & TDF_DETAILS)) { @@ -3234,16 +3242,16 @@ good_cloning_opportunity_p (struct cgraph_node *node, int time_benefit, info->node_within_scc ? (info->node_is_self_scc ? ", self_scc" : ", scc") : "", info->node_calling_single_call ? ", single_call" : "", - evaluation, param_ipa_cp_eval_threshold); + evaluation, eval_threshold); } - return evaluation >= param_ipa_cp_eval_threshold; + return evaluation >= eval_threshold; } else { int64_t evaluation = (((int64_t) time_benefit * freq_sum) / size_cost); - evaluation = incorporate_penalties (info, evaluation); + evaluation = incorporate_penalties (node, info, evaluation); if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, " good_cloning_opportunity_p (time: %i, " @@ -3253,9 +3261,9 @@ good_cloning_opportunity_p (struct cgraph_node *node, int time_benefit, info->node_within_scc ? (info->node_is_self_scc ? ", self_scc" : ", scc") : "", info->node_calling_single_call ? ", single_call" : "", - evaluation, param_ipa_cp_eval_threshold); + evaluation, eval_threshold); - return evaluation >= param_ipa_cp_eval_threshold; + return evaluation >= eval_threshold; } } @@ -3393,7 +3401,7 @@ perform_estimation_of_a_value (cgraph_node *node, vec known_csts, time_benefit = base_time.to_int () + devirtualization_time_bonus (node, known_csts, known_contexts, known_aggs) - + hint_time_bonus (hints) + + hint_time_bonus (node, hints) + removable_params_cost + est_move_cost; gcc_checking_assert (size >=0); @@ -3448,7 +3456,7 @@ estimate_local_effects (struct cgraph_node *node) known_aggs, &size, &time, &base_time, &hints); time -= devirt_bonus; - time -= hint_time_bonus (hints); + time -= hint_time_bonus (node, hints); time -= removable_params_cost; size -= stats.n_calls * removable_params_cost; @@ -3876,7 +3884,7 @@ ipcp_propagate_stage (class ipa_topo_info *topo) max_new_size = overall_size; if (max_new_size < param_large_unit_insns) max_new_size = param_large_unit_insns; - max_new_size += max_new_size * param_ipcp_unit_growth / 100 + 1; + max_new_size += max_new_size * param_ipa_cp_unit_growth / 100 + 1; if (dump_file) fprintf (dump_file, "\noverall_size: %li, max_new_size: %li\n", diff --git a/gcc/ipa-fnsummary.c b/gcc/ipa-fnsummary.c index ce2c251693d..a16b892f4a3 100644 --- a/gcc/ipa-fnsummary.c +++ b/gcc/ipa-fnsummary.c @@ -1324,7 +1324,7 @@ decompose_param_expr (struct ipa_func_body_info *fbi, struct agg_position_info *aggpos, expr_eval_ops *param_ops_p = NULL) { - int op_limit = param_ipa_max_param_expr_ops; + int op_limit = opt_for_fn (fbi->node->decl, param_ipa_max_param_expr_ops); int op_count = 0; if (param_ops_p) @@ -1555,7 +1555,8 @@ set_switch_stmt_execution_predicate (struct ipa_func_body_info *fbi, auto_vec > ranges; tree type = TREE_TYPE (op); - int bound_limit = param_ipa_max_switch_predicate_bounds; + int bound_limit = opt_for_fn (fbi->node->decl, + param_ipa_max_switch_predicate_bounds); int bound_count = 0; wide_int vr_wmin, vr_wmax; value_range_kind vr_type = get_range_info (op, &vr_wmin, &vr_wmax); @@ -2451,7 +2452,7 @@ analyze_function_body (struct cgraph_node *node, bool early) fbi.bb_infos = vNULL; fbi.bb_infos.safe_grow_cleared (last_basic_block_for_fn (cfun)); fbi.param_count = count_formal_params (node->decl); - fbi.aa_walk_budget = param_ipa_max_aa_steps; + fbi.aa_walk_budget = opt_for_fn (node->decl, param_ipa_max_aa_steps); nonconstant_names.safe_grow_cleared (SSANAMES (my_function)->length ()); diff --git a/gcc/ipa-inline-analysis.c b/gcc/ipa-inline-analysis.c index 8b400fff65a..3c71aab4ecb 100644 --- a/gcc/ipa-inline-analysis.c +++ b/gcc/ipa-inline-analysis.c @@ -455,9 +455,10 @@ offline_size (struct cgraph_node *node, ipa_size_summary *info) Take this into account. */ else if (DECL_COMDAT (node->decl) && node->can_remove_if_no_direct_calls_p ()) - return (info->size - * (100 - param_comdat_sharing_probability) - + 50) / 100; + { + int prob = opt_for_fn (node->decl, param_comdat_sharing_probability); + return info->size * (100 - prob + 50) / 100; + } } return 0; } diff --git a/gcc/ipa-inline.c b/gcc/ipa-inline.c index 2a3f31e03a2..4228e17951f 100644 --- a/gcc/ipa-inline.c +++ b/gcc/ipa-inline.c @@ -2966,7 +2966,8 @@ early_inliner (function *fun) } /* We iterate incremental inlining to get trivial cases of indirect inlining. */ - while (iterations < param_early_inliner_max_iterations + while (iterations < opt_for_fn (node->decl, + param_early_inliner_max_iterations) && early_inline_small_functions (node)) { timevar_push (TV_INTEGRATION); @@ -2985,7 +2986,8 @@ early_inliner (function *fun) es->call_stmt_time = estimate_num_insns (edge->call_stmt, &eni_time_weights); } - if (iterations < param_early_inliner_max_iterations - 1) + if (iterations < opt_for_fn (node->decl, + param_early_inliner_max_iterations) - 1) ipa_update_overall_fn_summary (node); timevar_pop (TV_INTEGRATION); iterations++; diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c index a6e32a50377..01c3580adda 100644 --- a/gcc/ipa-prop.c +++ b/gcc/ipa-prop.c @@ -2876,7 +2876,7 @@ ipa_analyze_node (struct cgraph_node *node) fbi.bb_infos = vNULL; fbi.bb_infos.safe_grow_cleared (last_basic_block_for_fn (cfun)); fbi.param_count = ipa_get_param_count (info); - fbi.aa_walk_budget = param_ipa_max_aa_steps; + fbi.aa_walk_budget = opt_for_fn (node->decl, param_ipa_max_aa_steps); for (struct cgraph_edge *cs = node->callees; cs; cs = cs->next_callee) { @@ -5756,7 +5756,7 @@ ipcp_transform_function (struct cgraph_node *node) fbi.bb_infos = vNULL; fbi.bb_infos.safe_grow_cleared (last_basic_block_for_fn (cfun)); fbi.param_count = param_count; - fbi.aa_walk_budget = param_ipa_max_aa_steps; + fbi.aa_walk_budget = opt_for_fn (node->decl, param_ipa_max_aa_steps); vec_safe_grow_cleared (descriptors, param_count); ipa_populate_param_decls (node, *descriptors); diff --git a/gcc/ipa-sra.c b/gcc/ipa-sra.c index a051a9f2154..79b543fa934 100644 --- a/gcc/ipa-sra.c +++ b/gcc/ipa-sra.c @@ -2279,7 +2279,9 @@ process_scan_results (cgraph_node *node, struct function *fun, if (!desc->by_ref || optimize_function_for_size_p (fun)) param_size_limit = cur_param_size; else - param_size_limit = param_ipa_sra_ptr_growth_factor * cur_param_size; + param_size_limit + = opt_for_fn (node->decl, + param_ipa_sra_ptr_growth_factor) * cur_param_size; if (nonarg_acc_size > param_size_limit || (!desc->by_ref && nonarg_acc_size == param_size_limit)) { @@ -2499,7 +2501,7 @@ ipa_sra_summarize_function (cgraph_node *node) bb_dereferences = XCNEWVEC (HOST_WIDE_INT, by_ref_count * last_basic_block_for_fn (fun)); - aa_walking_limit = param_ipa_max_aa_steps; + aa_walking_limit = opt_for_fn (node->decl, param_ipa_max_aa_steps); scan_function (node, fun); if (dump_file) diff --git a/gcc/params.opt b/gcc/params.opt index 5d39244761a..094e04aae5e 100644 --- a/gcc/params.opt +++ b/gcc/params.opt @@ -83,7 +83,7 @@ Common Joined UInteger Var(param_case_values_threshold) Param Optimization The smallest number of different values for which it is best to use a jump-table instead of a tree of conditional branches, if 0, use the default for the machine. -param=comdat-sharing-probability= -Common Joined UInteger Var(param_comdat_sharing_probability) Init(20) Param +Common Joined UInteger Var(param_comdat_sharing_probability) Init(20) Param Optimization Probability that COMDAT function will be shared with different compilation unit. -param=cxx-max-namespaces-for-diagnostic-help= @@ -191,35 +191,39 @@ Common Joined UInteger Var(param_integer_share_limit) Init(251) IntegerRange(2, The upper bound for sharing integer constants. -param=ipa-cp-eval-threshold= -Common Joined UInteger Var(param_ipa_cp_eval_threshold) Init(500) Param +Common Joined UInteger Var(param_ipa_cp_eval_threshold) Init(500) Param Optimization Threshold ipa-cp opportunity evaluation that is still considered beneficial to clone. -param=ipa-cp-loop-hint-bonus= -Common Joined UInteger Var(param_ipa_cp_loop_hint_bonus) Init(64) Param +Common Joined UInteger Var(param_ipa_cp_loop_hint_bonus) Init(64) Param Optimization Compile-time bonus IPA-CP assigns to candidates which make loop bounds or strides known. -param=ipa-cp-max-recursive-depth= -Common Joined UInteger Var(param_ipa_cp_max_recursive_depth) Init(8) Param +Common Joined UInteger Var(param_ipa_cp_max_recursive_depth) Init(8) Param Optimization Maximum depth of recursive cloning for self-recursive function. -param=ipa-cp-min-recursive-probability= -Common Joined UInteger Var(param_ipa_cp_min_recursive_probability) Init(2) Param +Common Joined UInteger Var(param_ipa_cp_min_recursive_probability) Init(2) Param Optimization Recursive cloning only when the probability of call being executed exceeds the parameter. -param=ipa-cp-recursion-penalty= -Common Joined UInteger Var(param_ipa_cp_recursion_penalty) Init(40) IntegerRange(0, 100) Param +Common Joined UInteger Var(param_ipa_cp_recursion_penalty) Init(40) IntegerRange(0, 100) Param Optimization Percentage penalty the recursive functions will receive when they are evaluated for cloning. -param=ipa-cp-single-call-penalty= -Common Joined UInteger Var(param_ipa_cp_single_call_penalty) Init(15) IntegerRange(0, 100) Param +Common Joined UInteger Var(param_ipa_cp_single_call_penalty) Init(15) IntegerRange(0, 100) Param Optimization Percentage penalty functions containing a single call to another function will receive when they are evaluated for cloning. +-param=ipa-cp-unit-growth= +Common Joined UInteger Var(param_ipa_cp_unit_growth) Init(10) Param +How much can given compilation unit grow because of the interprocedural constant propagation (in percent). + -param=ipa-cp-value-list-size= -Common Joined UInteger Var(param_ipa_cp_value_list_size) Init(8) Param +Common Joined UInteger Var(param_ipa_cp_value_list_size) Init(8) Param Optimization Maximum size of a list of values associated with each parameter for interprocedural constant propagation. -param=ipa-max-aa-steps= -Common Joined UInteger Var(param_ipa_max_aa_steps) Init(25000) Param +Common Joined UInteger Var(param_ipa_max_aa_steps) Init(25000) Param Optimization Maximum number of statements that will be visited by IPA formal parameter analysis based on alias analysis in any given function. -param=ipa-max-agg-items= @@ -227,11 +231,11 @@ Common Joined UInteger Var(param_ipa_max_agg_items) Init(16) Param Maximum number of aggregate content items for a parameter in jump functions and lattices. -param=ipa-max-param-expr-ops= -Common Joined UInteger Var(param_ipa_max_param_expr_ops) Init(10) Param +Common Joined UInteger Var(param_ipa_max_param_expr_ops) Init(10) Param Optimization Maximum number of operations in a parameter expression that can be handled by IPA analysis. -param=ipa-max-switch-predicate-bounds= -Common Joined UInteger Var(param_ipa_max_switch_predicate_bounds) Init(5) Param +Common Joined UInteger Var(param_ipa_max_switch_predicate_bounds) Init(5) Param Optimization Maximal number of boundary endpoints of case ranges of switch statement used during IPA functoin summary generation. -param=ipa-sra-max-replacements= @@ -239,13 +243,9 @@ Common Joined UInteger Var(param_ipa_sra_max_replacements) Init(8) IntegerRange( Maximum pieces that IPA-SRA tracks per formal parameter, as a consequence, also the maximum number of replacements of a formal parameter. -param=ipa-sra-ptr-growth-factor= -Common Joined UInteger Var(param_ipa_sra_ptr_growth_factor) Init(2) Param +Common Joined UInteger Var(param_ipa_sra_ptr_growth_factor) Init(2) Param Optimization Maximum allowed growth of number and total size of new parameters that ipa-sra replaces a pointer to an aggregate with. --param=ipcp-unit-growth= -Common Joined UInteger Var(param_ipcp_unit_growth) Init(10) Param -How much can given compilation unit grow because of the interprocedural constant propagation (in percent). - -param=ira-loop-reserved-regs= Common Joined UInteger Var(param_ira_loop_reserved_regs) Init(2) Param Optimization The number of registers in each class kept unused by loop invariant motion. @@ -423,7 +423,7 @@ Common Joined UInteger Var(param_max_dse_active_local_stores) Init(5000) Param O Maximum number of active local stores in RTL dead store elimination. -param=max-early-inliner-iterations= -Common Joined UInteger Var(param_early_inliner_max_iterations) Init(1) Param +Common Joined UInteger Var(param_early_inliner_max_iterations) Init(1) Param Optimization The maximum number of nested indirect inlining performed by early inliner. -param=max-fields-for-field-sensitive=