From e68287df88d7afcf7f25049f45de9ae614912157 Mon Sep 17 00:00:00 2001
From: Martin Liska <marxin@gcc.gnu.org>
Date: Thu, 19 Mar 2015 17:35:52 +0000
Subject: [PATCH] re PR ipa/65465 (Internal compiler error: in build2_stIat)

Fix for PR ipa/65465.

	PR ipa/65465
	* cgraphunit.c (cgraph_node::create_wrapper): Correctly reset
	all fields of cgraph_thunk_info.
	* g++.dg/ipa/pr65465.C: New test.

From-SVN: r221518
---
 gcc/ChangeLog                      |  6 ++++++
 gcc/cgraphunit.c                   |  3 ++-
 gcc/testsuite/ChangeLog            |  4 ++++
 gcc/testsuite/g++.dg/ipa/pr65465.C | 10 ++++++++++
 4 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/g++.dg/ipa/pr65465.C

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d5e191ab7ed1..86527011cea7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-03-19  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/65465
+	* cgraphunit.c (cgraph_node::create_wrapper): Correctly reset
+	all fields of cgraph_thunk_info.
+
 2015-03-19  Ilya Enkovich  <ilya.enkovich@intel.com>
 
 	* ipa-chkp.c (chkp_maybe_create_clone): Don't try to
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
index e640907550d0..8ac92e1c0c86 100644
--- a/gcc/cgraphunit.c
+++ b/gcc/cgraphunit.c
@@ -2484,8 +2484,9 @@ cgraph_node::create_wrapper (cgraph_node *target)
 
   /* Turn alias into thunk and expand it into GIMPLE representation.  */
   definition = true;
+
+  memset (&thunk, 0, sizeof (cgraph_thunk_info));
   thunk.thunk_p = true;
-  thunk.this_adjusting = false;
   create_edge (target, NULL, count, CGRAPH_FREQ_BASE);
 
   tree arguments = DECL_ARGUMENTS (decl);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b625d8532871..92835db1f58a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-03-19  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/ipa/pr65465.C: New test.
+
 2015-03-19  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/52659
diff --git a/gcc/testsuite/g++.dg/ipa/pr65465.C b/gcc/testsuite/g++.dg/ipa/pr65465.C
new file mode 100644
index 000000000000..436d88f743fd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/pr65465.C
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+struct A {};
+struct B { virtual A foo () const; };
+struct C { A foo () const; };
+struct D : virtual B { A foo () const {} };
+struct F : D { virtual int bar () const; };
+int F::bar () const { return 0; }
+A C::foo () const { return A (); }