[gcc r11-3630] ipa-cp: Add dumping of overall_size after cloning

[gcc r11-3630] ipa-cp: Add dumping of overall_size after cloning

[Martin Jambor]

https://gcc.gnu.org/g:91153e0af9a457a0085bb796613a81404480d5af

commit r11-3630-g91153e0af9a457a0085bb796613a81404480d5af
Author: Martin Jambor <mjambor@suse.cz>
Date:   Fri Oct 2 18:41:35 2020 +0200

    ipa-cp: Add dumping of overall_size after cloning
    
    When experimenting with IPA-CP parameters, especially when looking
    into exchange2_r, it has been very useful to know what the value of
    overall_size is at different stages of the decision process.  This
    patch therefore adds it to the generated dumps.
    
    gcc/ChangeLog:
    
    2020-09-07  Martin Jambor  <mjambor@suse.cz>
    
            * ipa-cp.c (estimate_local_effects): Add overeall_size to dumped
            string.
            (decide_about_value): Add dumping new overall_size.

Diff:
---
 gcc/ipa-cp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index f6320c787de..12acf24c553 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -3517,7 +3517,8 @@ estimate_local_effects (struct cgraph_node *node)
 
 	      if (dump_file)
 		fprintf (dump_file, "     Decided to specialize for all "
-			 "known contexts, growth deemed beneficial.\n");
+			 "known contexts, growth (to %li) deemed "
+			 "beneficial.\n", overall_size);
 	    }
 	  else if (dump_file && (dump_flags & TDF_DETAILS))
 	    fprintf (dump_file, "  Not cloning for all contexts because "
@@ -5506,6 +5507,9 @@ decide_about_value (struct cgraph_node *node, int index, HOST_WIDE_INT offset,
   val->spec_node = create_specialized_node (node, known_csts, known_contexts,
 					    aggvals, callers);
   overall_size += val->local_size_cost;
+  if (dump_file && (dump_flags & TDF_DETAILS))
+    fprintf (dump_file, "     overall size reached %li\n",
+	     overall_size);
 
   /* TODO: If for some lattice there is only one other known value
      left, make a special node for it too. */