ipa/94947 - avoid using externally_visible_p ()

externally_visible_p wasn't the correct predicate to use (even if it
worked), instead we should use DECL_EXTERNAL || TREE_PUBLIC.

2020-05-07  Richard Biener  <rguenther@suse.de>

	PR ipa/94947
	* tree-ssa-structalias.c (refered_from_nonlocal_fn): Use
	DECL_EXTERNAL || TREE_PUBLIC instead of externally_visible.
	(refered_from_nonlocal_var): Likewise.
	(ipa_pta_execute): Likewise.

(cherry picked from commit b9250b3cb91b667cd67943e0fac94bf39ac089a8)

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index a8463d68e73cab287e149200a80ac76035a6ef28..4396bcd8f20b49a433ee37b6a5af679b54cc4674 100644 (file)
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -7937,7 +7937,8 @@ refered_from_nonlocal_fn (struct cgraph_node *node, void *data)
 {
   bool *nonlocal_p = (bool *)data;
   *nonlocal_p |= (node->used_from_other_partition
-                 || node->externally_visible
+                 || DECL_EXTERNAL (node->decl)
+                 || TREE_PUBLIC (node->decl)
                  || node->force_output
                  || lookup_attribute ("noipa", DECL_ATTRIBUTES (node->decl)));
   return false;
@@ -7949,7 +7950,8 @@ refered_from_nonlocal_var (struct varpool_node *node, void *data)
 {
   bool *nonlocal_p = (bool *)data;
   *nonlocal_p |= (node->used_from_other_partition
-                 || node->externally_visible_p ()
+                 || DECL_EXTERNAL (node->decl)
+                 || TREE_PUBLIC (node->decl)
                  || node->force_output);
   return false;
 }
@@ -7998,7 +8000,8 @@ ipa_pta_execute (void)
         For local functions we see all callers and thus do not need initial
         constraints for parameters.  */
       bool nonlocal_p = (node->used_from_other_partition
-                        || node->externally_visible
+                        || DECL_EXTERNAL (node->decl)
+                        || TREE_PUBLIC (node->decl)
                         || node->force_output
                         || lookup_attribute ("noipa",
                                              DECL_ATTRIBUTES (node->decl)));
@@ -8038,7 +8041,8 @@ ipa_pta_execute (void)
 
       /* For the purpose of IPA PTA unit-local globals are not
          escape points.  */
-      bool nonlocal_p = (var->externally_visible_p ()
+      bool nonlocal_p = (DECL_EXTERNAL (var->decl)
+                        || TREE_PUBLIC (var->decl)
                         || var->used_from_other_partition
                         || var->force_output);
       var->call_for_symbol_and_aliases (refered_from_nonlocal_var,