gcc/0310-CFGO-Add-cfgo-pgo-optimization.patch

From 84635dc65ebe285457d0c16bbb5caf995f803436 Mon Sep 17 00:00:00 2001
From: liyancheng <412998149@qq.com>
Date: Wed, 27 Nov 2024 18:36:27 +0800
Subject: [PATCH] [CFGO] Add cfgo-pgo optimization

Add a cfgo-pgo to better optimize with AI4C
---
 gcc/common.opt    | 16 +++++++++++++
 gcc/gcc.cc        |  4 ++--
 gcc/lto-cgraph.cc |  3 ++-
 gcc/opts.cc       | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 77 insertions(+), 3 deletions(-)

diff --git a/gcc/common.opt b/gcc/common.opt
index c9baa12be..a45fbfe1b 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -2485,6 +2485,14 @@ fprofile-generate=
 Common Joined RejectNegative
 Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=.
 
+fcfgo-profile-generate
+Common Var(flag_cfgo_profile_generate)
+Enable common options for generating cfgo profile info for profile feedback directed optimizations.
+
+fcfgo-profile-generate=
+Common Joined RejectNegative
+Enable common options for generating cfgo profile info for profile feedback directed optimizations, and set -fprofile-dir=.
+
 fcfgo-csprofile-generate
 Common Var(flag_csprofile_generate)
 Enable common options for generating context sensitive profile info for profile feedback directed optimizations.
@@ -2517,6 +2525,14 @@ fprofile-use=
 Common Joined RejectNegative
 Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir=.
 
+fcfgo-profile-use
+Common Var(flag_cfgo_profile_use)
+Enable common options for performing profile feedback directed optimizations.
+
+fcfgo-profile-use=
+Common Joined RejectNegative
+Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir=.
+
 fcfgo-csprofile-use
 Common Var(flag_csprofile_use)
 Enable common options for performing context sensitive profile feedback directed optimizations.
diff --git a/gcc/gcc.cc b/gcc/gcc.cc
index b37b50be2..e5c43dd90 100644
--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
@@ -1147,7 +1147,7 @@ proper position among the other output files.  */
 	%:include(libgomp.spec)%(link_gomp)}\
     %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
     %(mflib) " STACK_SPLIT_SPEC "\
-    %{fprofile-arcs|fprofile-generate*|fcfgo-csprofile-generate*|coverage:-lgcov} \
+    %{fprofile-arcs|fprofile-generate*|fcfgo-profile-generate*|fcfgo-csprofile-generate*|coverage:-lgcov} \
     " SANITIZER_SPEC " \
     %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
     %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*}  \n%(post_link) }}}}}}"
@@ -1266,7 +1266,7 @@ static const char *cc1_options =
  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
  %{fsyntax-only:-o %j} %{-param*}\
  %{coverage:-fprofile-arcs -ftest-coverage}\
- %{fprofile-arcs|fprofile-generate*|fcfgo-csprofile-generate*|coverage:\
+ %{fprofile-arcs|fprofile-generate*|fcfgo-profile-generate*|fcfgo-csprofile-generate*|coverage:\
    %{!fprofile-update=single:\
      %{pthread:-fprofile-update=prefer-atomic}}}";
 
diff --git a/gcc/lto-cgraph.cc b/gcc/lto-cgraph.cc
index fd41941d1..9a30f1190 100644
--- a/gcc/lto-cgraph.cc
+++ b/gcc/lto-cgraph.cc
@@ -1681,7 +1681,8 @@ merge_profile_summaries (struct lto_file_decl_data **file_data_vec)
      stages with unknown bug resulted in different scaling results, which led
      different optimization decisions and finally led to coverage mismatch.
      Therefore, skip the following processing steps when doing cspgo.  */
-  if (flag_csprofile_generate || flag_csprofile_use)
+  if (flag_csprofile_generate || flag_csprofile_use
+      || flag_cfgo_profile_generate || flag_cfgo_profile_use)
     return;
 
   /* Now compute count_materialization_scale of each node.
diff --git a/gcc/opts.cc b/gcc/opts.cc
index 89d03e834..84dd8925a 100644
--- a/gcc/opts.cc
+++ b/gcc/opts.cc
@@ -2087,6 +2087,38 @@ enable_fdo_optimizations (struct gcc_options *opts,
   SET_OPTION_IF_UNSET (opts, opts_set, flag_tree_loop_distribution, value);
 }
 
+/* Enable cfgo-related flags.  */
+
+static void
+enable_cfgo_optimizations (struct gcc_options *opts,
+			   struct gcc_options *opts_set,
+			   int value)
+{
+  SET_OPTION_IF_UNSET (opts, opts_set, flag_modulo_sched, value);
+  SET_OPTION_IF_UNSET (opts, opts_set, flag_selective_scheduling, value);
+  SET_OPTION_IF_UNSET (opts, opts_set, flag_rename_registers, value);
+
+  SET_OPTION_IF_UNSET (opts, opts_set, param_max_inline_insns_auto, 185);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_inline_unit_growth, 66);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_max_inline_recursive_depth_auto,
+		       31);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_large_function_insns, 7286);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_large_function_growth, 89);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_large_unit_insns, 11783);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_eval_threshold, 864);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_loop_hint_bonus, 440);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_max_recursive_depth, 29);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_min_recursive_probability,
+		       4);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_recursive_freq_factor, 18);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_recursion_penalty, 64);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_single_call_penalty, 43);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_unit_growth, 96);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_large_unit_insns, 47631);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_value_list_size, 12);
+  SET_OPTION_IF_UNSET (opts, opts_set, param_ipa_cp_profile_count_base, 54);
+}
+
 /* -f{,no-}sanitize{,-recover}= suboptions.  */
 const struct sanitizer_opts_s sanitizer_opts[] =
 {
@@ -3033,6 +3065,18 @@ common_handle_option (struct gcc_options *opts,
       /* Deferred.  */
       break;
 
+    case OPT_fcfgo_profile_use_:
+      /* No break here - do -fcfgo-profile-use processing.  */
+      /* FALLTHRU */
+    case OPT_fcfgo_profile_use:
+      value = true;
+      if (value)
+	{
+	  enable_cfgo_optimizations (opts, opts_set, value);
+	  SET_OPTION_IF_UNSET (opts, opts_set, flag_cfgo_profile_use, value);
+	}
+      /* No break here - do -fprofile-use processing.  */
+      /* FALLTHRU */
     case OPT_fprofile_use_:
       opts->x_profile_data_prefix = xstrdup (arg);
       opts->x_flag_profile_use = true;
@@ -3090,6 +3134,19 @@ common_handle_option (struct gcc_options *opts,
       SET_OPTION_IF_UNSET (opts, opts_set, flag_ipa_struct_reorg, value);
       break;
 
+    case OPT_fcfgo_profile_generate_:
+      /* No break here - do -fcfgo-profile-generate processing.  */
+      /* FALLTHRU */
+    case OPT_fcfgo_profile_generate:
+      value = true;
+      if (value)
+	{
+	  enable_cfgo_optimizations (opts, opts_set, value);
+	  SET_OPTION_IF_UNSET (opts, opts_set, flag_cfgo_profile_generate,
+			       value);
+	}
+      /* No break here - do -fcfgo-profile-generate processing.  */
+      /* FALLTHRU */
     case OPT_fprofile_generate_:
       opts->x_profile_data_prefix = xstrdup (arg);
       value = true;
-- 
2.25.1