Hello.
Following patch add support for IPA ICF, where we miss support for
a proper DECL_PT_UID update in situations where we merge variables.
Patch can bootstrap and no new regression is introduced for x86_64-linux-gnu.
Ready for trunk?
Thanks,
Martin
>From 35ec4381940677e9491f28b7d83c8b0fbbc45d6c Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Wed, 18 May 2016 10:07:04 +0200
Subject: [PATCH] Set DECL_PT_UID for merged variables in IPA ICF (PR70856).
gcc/ChangeLog:
2016-05-18 Martin Liska <mli...@suse.cz>
* ipa-icf.c (sem_variable::merge): Set DECL_PT_UID for
merged variables.
---
gcc/ipa-icf.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c
index dda5cac..3c04b5a 100644
--- a/gcc/ipa-icf.c
+++ b/gcc/ipa-icf.c
@@ -2258,6 +2258,8 @@ sem_variable::merge (sem_item *alias_item)
varpool_node::create_alias (alias_var->decl, decl);
alias->resolve_alias (original);
+ if (DECL_PT_UID_SET_P (original->decl))
+ SET_DECL_PT_UID (alias->decl, DECL_PT_UID (original->decl));
if (dump_file)
fprintf (dump_file, "Unified; Variable alias has been created.\n\n");
--
2.8.2
