[gcc r12-5238] Fix bug in ipa-pure-const and add debug counters

[gcc r12-5238] Fix bug in ipa-pure-const and add debug counters

[Jan Hubicka]

https://gcc.gnu.org/g:6471396dec0cfc30e30e64a70b0d0e6a02de2de7

commit r12-5238-g6471396dec0cfc30e30e64a70b0d0e6a02de2de7
Author: Jan Hubicka <jh@suse.cz>
Date:   Sun Nov 14 00:48:32 2021 +0100

    Fix bug in ipa-pure-const and add debug counters
    
    gcc/ChangeLog:
    
            PR lto/103211
            * dbgcnt.def (ipa_attr): New counters.
            * ipa-pure-const.c: Include dbgcnt.c
            (ipa_make_function_const): Use debug counter.
            (ipa_make_function_pure): Likewise.
            (propagate_pure_const): Fix bug in my previous change.

Diff:
---
 gcc/dbgcnt.def       |  1 +
 gcc/ipa-pure-const.c | 13 +++++++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/gcc/dbgcnt.def b/gcc/dbgcnt.def
index 3a85665a1d7..f8a15f3d1d1 100644
--- a/gcc/dbgcnt.def
+++ b/gcc/dbgcnt.def
@@ -175,6 +175,7 @@ DEBUG_COUNTER (if_after_reload)
 DEBUG_COUNTER (if_conversion)
 DEBUG_COUNTER (if_conversion_tree)
 DEBUG_COUNTER (if_to_switch)
+DEBUG_COUNTER (ipa_attr)
 DEBUG_COUNTER (ipa_cp_bits)
 DEBUG_COUNTER (ipa_cp_values)
 DEBUG_COUNTER (ipa_cp_vr)
diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c
index 5056850c0a8..a332940b55d 100644
--- a/gcc/ipa-pure-const.c
+++ b/gcc/ipa-pure-const.c
@@ -62,6 +62,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "ipa-prop.h"
 #include "ipa-fnsummary.h"
 #include "symtab-thunks.h"
+#include "dbgcnt.h"
 
 /* Lattice values for const and pure functions.  Everything starts out
    being const, then may drop to pure and then neither depending on
@@ -1476,8 +1477,10 @@ ipa_make_function_const (struct cgraph_node *node, bool looping, bool local)
     fprintf (dump_file, "Function found to be %sconst: %s\n",
 	     looping ? "looping " : "",
 	     node->dump_name ());
-  if (!local)
+  if (!local && !looping)
     cdtor = node->call_for_symbol_and_aliases (cdtor_p, NULL, true);
+  if (!dbg_cnt (ipa_attr))
+    return false;
   if (node->set_const_flag (true, looping))
     {
       if (dump_file)
@@ -1511,8 +1514,10 @@ ipa_make_function_pure (struct cgraph_node *node, bool looping, bool local)
     fprintf (dump_file, "Function found to be %spure: %s\n",
 	     looping ? "looping " : "",
 	     node->dump_name ());
-  if (!local)
+  if (!local && !looping)
     cdtor = node->call_for_symbol_and_aliases (cdtor_p, NULL, true);
+  if (!dbg_cnt (ipa_attr))
+    return false;
   if (node->set_pure_flag (true, looping))
     {
       if (dump_file)
@@ -1797,11 +1802,11 @@ propagate_pure_const (void)
 	    switch (this_state)
 	      {
 	      case IPA_CONST:
-		remove_p |= ipa_make_function_const (node, this_looping, false);
+		remove_p |= ipa_make_function_const (w, this_looping, false);
 		break;
 
 	      case IPA_PURE:
-		remove_p |= ipa_make_function_pure (node, this_looping, false);
+		remove_p |= ipa_make_function_pure (w, this_looping, false);
 		break;
 
 	      default: