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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr43670.c b/gcc/testsuite/gcc.dg/pr43670.c
new file mode 100644
index 000000000..f152b4d7a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr43670.c
@@ -0,0 +1,29 @@
+/* PR debug/43670 */
+/* { dg-do compile } */
+/* { dg-options "-O -ftree-vrp -fcompare-debug" } */
+
+extern void abort (void);
+
+typedef struct { double T1; } S;
+
+void
+foo (void)
+{
+  int i, j;
+  double s;
+
+  S y[2][2];
+  S *x[2] = { y[0], y[1] };
+  S **p = x;
+
+  for (i = 0; i < 2; i++)
+    for (j = 0; j < 2; j++)
+      p[j][i].T1 = 1;
+
+  for (i = 0; i < 2; i++)
+    for (j = 0; j < 2; j++)
+      s = p[j][i].T1;
+
+  if (s != 1)
+    abort ();
+}