Fix updating of call_stmt_site_hash

This patch fixes ICE causes by call stmt site hash going out of sync.  For
speculative edges it is assumed to contain a direct call so if we are
removing it hashtable needs to be updated.  I realize that the code is ugly
but I will leave cleanup for next stage1.

Bootstrapped/regtested x86_64-linux. This patch makes it possible to build
Firefox again.

	PR lto/93318
	* cgraph.c (cgraph_edge::resolve_speculation,
	cgraph_edge::redirect_call_stmt_to_callee): Fix update of
	call_stmt_site_hash.

1 files changed, 6 insertions, 3 deletions

diff --git a/gcc/ipa.c b/gcc/ipa.c
index e2635a7..5548193 100644
--- a/gcc/ipa.c
+++ b/gcc/ipa.c
@@ -391,17 +391,20 @@ symbol_table::remove_unreachable_nodes (FILE *file)
 		      n->used_as_abstract_origin = true;
 		}
 	    }
-	  /* If any symbol in a comdat group is reachable, force
-	     all externally visible symbols in the same comdat
+	  /* If any non-external and non-local symbol in a comdat group is
+ 	     reachable, force all externally visible symbols in the same comdat
 	     group to be reachable as well.  Comdat-local symbols
 	     can be discarded if all uses were inlined.  */
-	  if (node->same_comdat_group)
+	  if (node->same_comdat_group
+	      && node->externally_visible
+	      && !DECL_EXTERNAL (node->decl))
 	    {
 	      symtab_node *next;
 	      for (next = node->same_comdat_group;
 		   next != node;
 		   next = next->same_comdat_group)
 		if (!next->comdat_local_p ()
+		    && !DECL_EXTERNAL (next->decl)
 		    && !reachable.add (next))
 		  enqueue_node (next, &first, &reachable);
 	    }