From 4a444e581667f110bfa936aa8d364cd751237770 Mon Sep 17 00:00:00 2001
From: Jan Hubicka <jh@suse.cz>
Date: Sat, 15 May 2010 01:39:39 +0200
Subject: cgraph.h (ipa_discover_readonly_nonaddressable_vars): Declare.

	* cgraph.h (ipa_discover_readonly_nonaddressable_vars): Declare.
	(varpool_all_refs_explicit_p): New inline function.
	* ipa-reference.c: Update comment.
	(module_statics_written): Remove.
	(get_static_decl): Remove.
	(ipa_init): Do not initialize module_statics_written.
	(analyze_function): Likewise.
	(generate_summary): Likewise; do not compute module_statics_readonly
	and do not update variable flags.
	(propagate): Call ipa_discover_readonly_nonaddressable_vars.
	* ipa.c: Inlucde flags.h
	(cgraph_local_node_p): New.
	(cgraph_remove_unreachable_nodes): Return early when not optimizing;
	promote functions to local.
	(ipa_discover_readonly_nonaddressable_vars): New function.
	(function_and_variable_visibility): Use cgraph_local_node_p.
	* varpool.c (varpool_finalize_decl): Set force_output for
	DECL_PRESERVE_P vars.

From-SVN: r159421
---
 gcc/varpool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc/varpool.c')

diff --git a/gcc/varpool.c b/gcc/varpool.c
index f6e1449..c713a77 100644
--- a/gcc/varpool.c
+++ b/gcc/varpool.c
@@ -374,7 +374,7 @@ varpool_finalize_decl (tree decl)
   if (node->needed)
     varpool_enqueue_needed_node (node);
   node->finalized = true;
-  if (TREE_THIS_VOLATILE (decl))
+  if (TREE_THIS_VOLATILE (decl) || DECL_PRESERVE_P (decl))
     node->force_output = true;
 
   if (decide_is_variable_needed (node, decl))
-- 
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