obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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.

1 files changed, 33 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-7.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-7.c
new file mode 100644
index 000000000..792dfb028
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-7.c
@@ -0,0 +1,33 @@
+/* { dg-do link } */
+/* { dg-options "-O -fdump-tree-optimized" } */
+
+extern void link_error (void);
+void foo(int n)
+{
+  int * f = (int*) __builtin_malloc (n * sizeof (int));
+  int * ff = (int*) __builtin_malloc (n * sizeof (int));
+  int i;
+
+  for (i = 0; i < n; ++i)
+    {
+      f[i] = 1;
+      ff[i] = 2;
+      if (f[i] != 1)
+	link_error ();
+      if (ff[i] != 2)
+	link_error ();
+    }
+
+  __builtin_free (f);
+  __builtin_free (ff);
+}
+int main()
+{
+  return 0;
+}
+
+/* We should have removed the calls to link_error () and all stores
+   to the allocated memory.  */
+
+/* { dg-final { scan-tree-dump-times "\\\*D" 0 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */