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, 24 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-6.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-6.c
new file mode 100644
index 000000000..30a06a102
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-6.c
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-cddce1" } */
+
+struct object { int field; };
+void o(struct object *);
+int globl;
+void t(int x)
+{
+  struct object a, b;
+  struct object *p;
+  o(&a);
+  if (x)
+    p = &a;
+  else
+    p = &b;
+  p->field = 1;
+  globl = 0;
+  return;
+}
+
+/* The global store should not prevent deleting the store to p->field.  */
+
+/* { dg-final { scan-tree-dump-not "p_.->field" "cddce1" } } */
+/* { dg-final { cleanup-tree-dump "cddce1" } } */