From: Jan Hubicka <jh@suse.cz>
Date: Wed, 17 Nov 2021 00:43:57 +0000 (+0100)
Subject: Fix clearing of to_info_lto in ipa_merge_modref_summary_after_inlining
X-Git-Tag: basepoints/gcc-13~2985
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c693978dd64b16637577ebf50c760053d7d2165;p=thirdparty%2Fgcc.git

Fix clearing of to_info_lto in ipa_merge_modref_summary_after_inlining

This patch fixes bug that caused some optimizations to be dropped with
-fdump-ipa-inline.

gcc/ChangeLog:

2021-11-17  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/103246
	* ipa-modref.c (ipa_merge_modref_summary_after_inlining): Fix clearing
	of to_info_lto
---

diff --git a/gcc/ipa-modref.c b/gcc/ipa-modref.c
index a70575bc807f..90cd1be764c6 100644
--- a/gcc/ipa-modref.c
+++ b/gcc/ipa-modref.c
@@ -5123,6 +5123,7 @@ ipa_merge_modref_summary_after_inlining (cgraph_edge *edge)
 	    fprintf (dump_file, "Removed mod-ref summary for %s\n",
 		     to->dump_name ());
 	  summaries_lto->remove (to);
+	  to_info_lto = NULL;
 	}
       else if (to_info_lto && dump_file)
 	{
@@ -5130,7 +5131,6 @@ ipa_merge_modref_summary_after_inlining (cgraph_edge *edge)
 	    fprintf (dump_file, "Updated mod-ref summary for %s\n",
 		     to->dump_name ());
 	  to_info_lto->dump (dump_file);
-	  to_info_lto = NULL;
 	}
       if (callee_info_lto)
 	summaries_lto->remove (edge->callee);