From eff93050904e0aeaf26b47fb1d1e8eeb803f9af6 Mon Sep 17 00:00:00 2001
From: mliska <mliska@suse.cz>
Date: Wed, 25 Feb 2015 18:26:09 +0100
Subject: [PATCH] ICF: Validate correctly hard register variables.
gcc/ChangeLog:
2015-02-25 Martin Liska <mliska@suse.cz>
* ipa-icf-gimple.c (func_checker::compare_variable_decl): Compare
hard register variables.
---
gcc/ipa-icf-gimple.c | 7 +++++++
1 file changed, 7 insertions(+)
@@ -575,6 +575,13 @@ func_checker::compare_variable_decl (tree t1, tree t2)
if (t1 == t2)
return true;
+ if (DECL_HARD_REGISTER (t1) != DECL_HARD_REGISTER (t2))
+ return return_false_with_msg ("DECL_HARD_REGISTER are different");
+
+ if (DECL_HARD_REGISTER (t1)
+ && DECL_ASSEMBLER_NAME (t1) != DECL_ASSEMBLER_NAME (t2))
+ return return_false_with_msg ("HARD REGISTERS are different");
+
if (TREE_CODE (t1) == VAR_DECL && (DECL_EXTERNAL (t1) || TREE_STATIC (t1)))
{
symtab_node *n1 = symtab_node::get (t1);
--
2.1.2