From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/g++.dg/opt/pr48549.C | 63 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/opt/pr48549.C

(limited to 'gcc/testsuite/g++.dg/opt/pr48549.C')

diff --git a/gcc/testsuite/g++.dg/opt/pr48549.C b/gcc/testsuite/g++.dg/opt/pr48549.C
new file mode 100644
index 000000000..30799ee93
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr48549.C
@@ -0,0 +1,63 @@
+// PR rtl-optimization/48549
+// { dg-do compile }
+// { dg-options "-fcompare-debug -O2" }
+
+void
+foo (void *from, void *to)
+{
+  long offset = reinterpret_cast <long>(to) - reinterpret_cast <long>(from);
+  if (offset != static_cast <int>(offset))
+    *(int *) 0xC0DE = 0;
+  reinterpret_cast <int *>(from)[1] = offset;
+}
+struct A
+{
+  A () : a () {}
+  A (void *x) : a (x) {}
+  void *bar () { return a; }
+  void *a;
+};
+struct C;
+struct D;
+struct E : public A
+{
+  C m1 (int);
+  D m2 ();
+  E () {}
+  E (A x) : A (x) {}
+};
+struct C : public E
+{
+  C () {}
+  C (void *x) : E (x) {}
+};
+struct D : public E
+{
+  D (void *x) : E (x) {}
+};
+C
+E::m1 (int x)
+{
+  return (reinterpret_cast <char *>(bar ()) + x);
+}
+D
+E::m2 ()
+{
+  return reinterpret_cast <char *>(bar ());
+}
+struct B
+{
+  E a;
+  unsigned b : 16;
+  unsigned c : 1;
+};
+void
+baz (B *x)
+{
+  for (unsigned i = 0; i < 64; i++)
+    {
+      D d = x[i].a.m2 ();
+      C c = x[i].a.m1 (x[i].c);
+      foo (d.bar (), c.bar ());
+    }
+}
-- 
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