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| author | Jan Hubicka <jh@suse.cz> | 2008-08-29 18:41:35 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2008-08-29 16:41:35 +0000 |
| commit | ca30a5396af8e55bb19746eeb323de7064da6c46 (patch) | |
| tree | 9296bef7d6851c797bb4189695298388ef9bef1d /gcc/predict.c | |
| parent | a1f626ad3b943f90c164f54abb1d3830c8959782 (diff) | |
| download | gcc-ca30a5396af8e55bb19746eeb323de7064da6c46.zip gcc-ca30a5396af8e55bb19746eeb323de7064da6c46.tar.gz gcc-ca30a5396af8e55bb19746eeb323de7064da6c46.tar.bz2 | |
cgraph.c (cgraph_remove_node): Do not remove nested nodes.
* cgraph.c (cgraph_remove_node): Do not remove nested nodes.
* cgraph.h (cgraph_maybe_hot_edge_p): Declare.
* ipa-cp.c (n_cloning_candidates): New static variable.
(ipcp_print_profile_data, ipcp_function_scale_print): Forward declare.
(ipcp_print_all_lattices): Improve debug output.
(ipcp_cloning_candidate_p): New function.
(ipcp_initialize_node_lattices): Use it.
(ipcp_init_stage): Do only analyzis here; prettier debug output.
(ipcp_propagate_stage): Prettier debug output.
(ipcp_iterate_stage): Initialize latices here; prettier debug output.
(ipcp_print_all_structures): Remove.
(ipcp_need_redirect_p): Test !n_cloning_candidates.
(ipcp_insert_stage): Prettier debug output; call
cgraph_remove_unreachable_nodes before propagating.
(pass_ipa_cp): Schedule function removal pass.
* ipa-inline.c (inline_indirect_intraprocedural_analysis): Better
debug output.
(cgraph_maybe_hot_edge_p): Move to ...
* predict.c (cgraph_maybe_hot_edge_p) ... here.
* opts.c (flag_ipa_cp_set, flag_ipa_cp_clone_set): New.
(common_handle_option): Set them; enable ipa-cp when profiling.
* ipa-prop.c (ipa_print_node_jump_functions): Prettier output.
(ipa_print_all_jump_functions): Likewise.
(ipa_print_all_tree_maps, ipa_print_node_param_flags): Remove.
(ipa_print_node_params, ipa_print_all_params): New.
* ipa-prop.h (ipa_print_all_tree_maps, ipa_print_node_param_flags,
ipa_print_all_param_flags): Remove.
(ipa_print_node_params, ipa_print_all_params): New.
From-SVN: r139772
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index 45fffd3..4e17b9a 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -138,6 +138,27 @@ maybe_hot_bb_p (const_basic_block bb) return maybe_hot_frequency_p (bb->frequency); } +/* Return true if the call can be hot. */ + +bool +cgraph_maybe_hot_edge_p (struct cgraph_edge *edge) +{ + if (profile_info && flag_branch_probabilities + && (edge->count + <= profile_info->sum_max / PARAM_VALUE (HOT_BB_COUNT_FRACTION))) + return false; + if (lookup_attribute ("cold", DECL_ATTRIBUTES (edge->callee->decl)) + || lookup_attribute ("cold", DECL_ATTRIBUTES (edge->caller->decl))) + return false; + if (lookup_attribute ("hot", DECL_ATTRIBUTES (edge->caller->decl))) + return true; + if (flag_guess_branch_prob + && edge->frequency < (CGRAPH_FREQ_MAX + / PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION))) + return false; + return true; +} + /* Return true in case BB can be CPU intensive and should be optimized for maximal performance. */ |