From: Marek Polacek <polacek@redhat.com>
Date: Thu, 30 Apr 2015 18:05:34 +0000 (+0000)
Subject: re PR tree-optimization/63551 (wrong code (segfaults) at -Os on x86_64-linux-gnu)
X-Git-Tag: releases/gcc-4.9.3~175
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0288cceb4eaee71b7847366d29b65aa472201626;p=thirdparty%2Fgcc.git

re PR tree-optimization/63551 (wrong code (segfaults) at -Os on x86_64-linux-gnu)

	PR tree-optimization/63551
    	* g++.dg/ipa/pr63551.C: New test.

From-SVN: r222652
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8eba2c2274b0..a8ced0994e5f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-30  Marek Polacek  <polacek@redhat.com>
+
+	PR tree-optimization/63551
+	* g++.dg/ipa/pr63551.C: New test.
+
 2015-04-29  Thomas Schwinge  <thomas@codesourcery.com>
 
 	Backport from trunk r222564:
diff --git a/gcc/testsuite/g++.dg/ipa/pr63551.C b/gcc/testsuite/g++.dg/ipa/pr63551.C
new file mode 100644
index 000000000000..03e033979697
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/pr63551.C
@@ -0,0 +1,23 @@
+// { dg-options "-O -Wno-psabi" }
+// { dg-do compile }
+
+struct A { int a; };
+template <typename T, typename V> struct B { V operator[] (T); };
+union U { long double ld; void *v; };
+A a;
+
+void
+bar (U &x)
+{
+  if (x.v) *reinterpret_cast <A *>(x.v) = a;
+}
+
+struct C { C (A) { c.ld = 0; bar (c); } U c; };
+struct D { A d, e; void foo () { f[0][d] = e; } B <int, B <A, C> > f; };
+
+void
+baz ()
+{
+  D d;
+  d.foo ();
+}