Hi,
there are only two places left where frontend is fiddling with
TREE_SYMBOL_REFERENCED.
The first should not be needed because alias code now properly analyze the
aliases
in callgraph.
The second can be replaced by TREE_USED (and I think should be). It is only
needed to the following decl_needed_p knows about it.
Bootstrapped/regtested x86_64-linux, OK?
Honza
* method.c (make_alias_for): Do not set TREE_SYMBOL_REFERENCED.
* decl2.c (mark_needed): Likewise.
(decl_needed_p): Do not test TREE_SYMBOL_REFERENCED.
Index: method.c
===================================================================
--- method.c (revision 186623)
+++ method.c (working copy)
@@ -244,7 +244,6 @@ make_alias_for (tree target, tree newid)
TREE_ADDRESSABLE (alias) = 1;
TREE_USED (alias) = 1;
SET_DECL_ASSEMBLER_NAME (alias, DECL_NAME (alias));
- TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (alias)) = 1;
return alias;
}
Index: decl2.c
===================================================================
--- decl2.c (revision 186627)
+++ decl2.c (working copy)
@@ -1782,10 +1782,7 @@ var_finalized_p (tree var)
void
mark_needed (tree decl)
{
- /* It's possible that we no longer need to set
- TREE_SYMBOL_REFERENCED here directly, but doing so is
- harmless. */
- TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)) = 1;
+ TREE_USED (decl) = 1;
mark_decl_referenced (decl);
}
@@ -1811,9 +1808,7 @@ decl_needed_p (tree decl)
return true;
/* If this entity was used, let the back end see it; it will decide
whether or not to emit it into the object file. */
- if (TREE_USED (decl)
- || (DECL_ASSEMBLER_NAME_SET_P (decl)
- && TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
+ if (TREE_USED (decl))
return true;
/* Functions marked "dllexport" must be emitted so that they are
visible to other DLLs. */
