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/pr23818.c b/gcc/testsuite/gcc.dg/pr23818.c
new file mode 100644
index 000000000..be0bb9a01
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr23818.c
@@ -0,0 +1,33 @@
+/* PR tree-optimization/23818 */
+/* { dg-do run } */
+/* { dg-options "-O2 -fno-tree-dominator-opts" } */
+
+#include <stdarg.h>
+
+extern void abort (void);
+
+void
+foo (int p[100], int k, ...)
+{
+  int j, *q;
+  va_list ap;
+
+  va_start (ap, k);
+  q = va_arg (ap, int *);
+  for (j = 0; j < 100; j++)
+    q[j] = p[j] + 10;
+  va_end(ap);
+}
+
+int
+main (void)
+{
+  int buf[100], buf2[100], i;
+  for (i = 0; i < 100; i++)
+    buf[i] = i + 1;
+  foo (buf, 0, buf2);
+  for (i = 0; i < 100; i++)
+    if (buf2[i] != buf[i] + 10)
+      abort ();
+  return 0;
+}