[gcc(refs/users/kubaneko/heads/histogram)] add loop_optimizer_init

[Ondrej Kubanek]

https://gcc.gnu.org/g:97ceb05c9251922d918c8eb7d9a267d120b48323

commit 97ceb05c9251922d918c8eb7d9a267d120b48323
Author: kubaneko <kubanek0ondrej@gmail.com>
Date:   Tue Sep 27 12:47:59 2022 +0000

    add loop_optimizer_init

Diff:
---
 gcc/profile.cc    | 5 +++++
 gcc/value-prof.cc | 5 ++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/gcc/profile.cc b/gcc/profile.cc
index 987b764baf5..297f335a439 100644
--- a/gcc/profile.cc
+++ b/gcc/profile.cc
@@ -1206,6 +1206,9 @@ branch_prob (bool thunk)
 
   total_num_times_called++;
 
+  calculate_dominance_info (CDI_DOMINATORS);
+  loop_optimizer_init (LOOPS_HAVE_SIMPLE_LATCHES);
+
   flow_call_edges_add (NULL);
   add_noreturn_fake_exit_edges ();
 
@@ -1591,6 +1594,8 @@ branch_prob (bool thunk)
 	  }
       compute_function_frequency ();
     }
+   loop_optimizer_finalize ();
+   free_dominance_info (CDI_DOMINATORS);
 }
 
 /* Union find algorithm implementation for the basic blocks using
diff --git a/gcc/value-prof.cc b/gcc/value-prof.cc
index c4dbd0226b5..fad7967a869 100644
--- a/gcc/value-prof.cc
+++ b/gcc/value-prof.cc
@@ -1930,11 +1930,11 @@ gimple_stringops_values_to_profile (gimple *gs, histogram_values *values)
 
 static void
 gimple_histogram_values_to_profile(function *fun, histogram_values * values){
-    calculate_dominance_info (CDI_DOMINATORS);
     for (auto loop : loops_list (fun, 0)){
          tree var;
          gimple_stmt_iterator gsi;
-         gsi = gsi_last_bb (loop->latch);
+         
+         gsi = gsi_start_bb (loop->latch);
          create_iv (build_int_cst_type (get_gcov_type(), 0), build_int_cst (get_gcov_type(), 1), NULL_TREE,
              loop, &gsi, true, &var, NULL);
          auto_vec<edge> exits = get_loop_exit_edges (loop);
@@ -1946,7 +1946,6 @@ gimple_histogram_values_to_profile(function *fun, histogram_values * values){
                  }
          }
     }
-    free_dominance_info (CDI_DOMINATORS);
     gsi_commit_edge_inserts ();
 }