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/gcc.dg/20020310-1.c | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/20020310-1.c

(limited to 'gcc/testsuite/gcc.dg/20020310-1.c')

diff --git a/gcc/testsuite/gcc.dg/20020310-1.c b/gcc/testsuite/gcc.dg/20020310-1.c
new file mode 100644
index 000000000..bdd29672b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20020310-1.c
@@ -0,0 +1,54 @@
+/* PR optimization/5844
+   This testcase was miscompiled because of an rtx sharing bug.  */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -mtune=i586" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+struct A
+{
+  struct A *a;
+  int b;
+};
+
+struct B
+{
+  struct A *c;
+  unsigned int d;
+};
+
+struct A p = { &p, -1 };
+struct B q = { &p, 0 };
+
+extern void abort (void);
+extern void exit (int);
+
+struct B *
+foo (void)
+{
+  return &q;
+}
+
+void
+bar (void)
+{
+  struct B *e = foo ();
+  struct A *f = e->c;
+  int g = f->b;
+
+  if (++g == 0)
+    {
+      e->d++;
+      e->c = f->a;
+    }
+
+  f->b = g;
+}
+
+int
+main ()
+{
+  bar ();
+  if (p.b != 0 || q.d != 1 || q.c != &p)
+    abort ();
+  exit (0);
+}
-- 
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