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/pr30286.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/pr30286.c

(limited to 'gcc/testsuite/gcc.dg/pr30286.c')

diff --git a/gcc/testsuite/gcc.dg/pr30286.c b/gcc/testsuite/gcc.dg/pr30286.c
new file mode 100644
index 000000000..9ec49b423
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr30286.c
@@ -0,0 +1,37 @@
+/* PR middle-end/30286 */
+/* { dg-do run } */
+/* { dg-options "-O2 -ftrapv" } */
+
+extern void abort (void);
+struct S { struct S *s; };
+struct T { struct S *t[25]; };
+
+void
+__attribute__((noinline))
+foo (int i, struct T *x, struct S *y)
+{
+  int j;
+  for (j = 14; j > i; j--)
+    x->t[j] = y->s;
+}
+
+int
+main (void)
+{
+  struct S s;
+  struct T t;
+  int i;
+
+  s.s = &s;
+  __builtin_memset (&t, 0, sizeof (t));
+  foo (6, &t, &s);
+  for (i = 0; i < 25; i++)
+    if (t.t[i] != ((i > 6 && i <= 14) ? &s : (struct S *) 0))
+      abort ();
+  __builtin_memset (&t, 0, sizeof (t));
+  foo (-1, &t, &s);
+  for (i = 0; i < 25; i++)
+    if (t.t[i] != ((i >= 0 && i <= 14) ? &s : (struct S *) 0))
+      abort ();
+  return 0;
+}
-- 
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