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, 81 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr39339.c b/gcc/testsuite/gcc.c-torture/execute/pr39339.c
new file mode 100644
index 000000000..6c1b9e72e
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr39339.c
@@ -0,0 +1,81 @@
+struct C
+{
+  unsigned int c;
+  struct D
+  {
+    unsigned int columns : 4;
+    unsigned int fore : 12;
+    unsigned int back : 6;
+    unsigned int fragment : 1;
+    unsigned int standout : 1;
+    unsigned int underline : 1;
+    unsigned int strikethrough : 1;
+    unsigned int reverse : 1;
+    unsigned int blink : 1;
+    unsigned int half : 1;
+    unsigned int bold : 1;
+    unsigned int invisible : 1;
+    unsigned int pad : 1;
+  } attr;
+};
+
+struct A
+{
+  struct C *data;
+  unsigned int len;
+};
+
+struct B
+{
+  struct A *cells;
+  unsigned char soft_wrapped : 1;
+};
+
+struct E
+{
+  long row, col;
+  struct C defaults;
+};
+
+__attribute__ ((noinline))
+void foo (struct E *screen, unsigned int c, int columns, struct B *row)
+{
+  struct D attr;
+  long col;
+  int i;
+  col = screen->col;
+  attr = screen->defaults.attr;
+  attr.columns = columns;
+  row->cells->data[col].c = c;
+  row->cells->data[col].attr = attr;
+  col++;
+  attr.fragment = 1;
+  for (i = 1; i < columns; i++)
+    {
+      row->cells->data[col].c = c;
+      row->cells->data[col].attr = attr;
+      col++;
+    }
+}
+
+int
+main (void)
+{
+  struct E e = {.row = 5,.col = 0,.defaults =
+      {6, {-1, -1, -1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0}} };
+  struct C c[4];
+  struct A a = { c, 4 };
+  struct B b = { &a, 1 };
+  struct D d;
+  __builtin_memset (&c, 0, sizeof c);
+  foo (&e, 65, 2, &b);
+  d = e.defaults.attr;
+  d.columns = 2;
+  if (__builtin_memcmp (&d, &c[0].attr, sizeof d))
+    __builtin_abort ();
+  d.fragment = 1;
+  if (__builtin_memcmp (&d, &c[1].attr, sizeof d))
+    __builtin_abort ();
+  return 0;
+}
+