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, 41 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/dfp/func-vararg-size0.c b/gcc/testsuite/c-c++-common/dfp/func-vararg-size0.c
new file mode 100644
index 000000000..bc8b20fd4
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/dfp/func-vararg-size0.c
@@ -0,0 +1,41 @@
+/* C99 6.5.2.2 Function calls.  */
+
+#include <stdarg.h>
+#include "dfp-dbg.h"
+
+struct S1
+{
+  struct
+  {
+    _Decimal64 e;
+  } b[0];
+};
+
+/* Test handling vararg parameters whose size is 0.  */
+
+int check_var(int z,...)
+{
+  double d;
+  struct S1 s1;
+  long long result;
+  va_list ap;
+  va_start (ap, z);
+  d = va_arg (ap, double);
+  s1 = va_arg (ap, struct S1);
+  result = va_arg (ap, long long);
+  va_end (ap);
+  return (result == 2LL);
+
+}
+
+int
+main ()
+{
+  struct S1 s1;
+  struct S1 a1[5];
+
+  if (check_var(5, 1.0, s1, 2LL, a1[2], a1[2]) == 0)
+    FAILURE
+
+  FINISH
+}