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, 67 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20071210-1.c b/gcc/testsuite/gcc.c-torture/execute/20071210-1.c
new file mode 100644
index 000000000..0d113c008
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20071210-1.c
@@ -0,0 +1,67 @@
+/* PR rtl-optimization/34302 */
+
+extern void abort (void);
+
+struct S
+{
+  int n1, n2, n3, n4;
+};
+
+__attribute__((noinline)) struct S
+foo (int x, int y, int z)
+{
+  if (x != 10 || y != 9 || z != 8)
+    abort ();
+  struct S s = { 1, 2, 3, 4 };
+  return s;
+}
+
+__attribute__((noinline)) void **
+bar (void **u, int *v)
+{
+  void **w = u;
+  int *s = v, x, y, z;
+  void **p, **q;
+  static void *l[] = { &&lab1, &&lab1, &&lab2, &&lab3, &&lab4 };
+
+  if (!u)
+    return l;
+
+  q = *w++;
+  goto *q;
+lab2:
+  p = q;
+  q = *w++;
+  x = s[2];
+  y = s[1];
+  z = s[0];
+  s -= 1;
+  struct S r = foo (x, y, z);
+  s[3] = r.n1;
+  s[2] = r.n2;
+  s[1] = r.n3;
+  s[0] = r.n4;
+  goto *q;
+lab3:
+  p = q;
+  q = *w++;
+  s += 1;
+  s[0] = 23;
+lab1:
+  goto *q;
+lab4:
+  return 0;
+}
+
+int
+main (void)
+{
+  void **u = bar ((void **) 0, (int *) 0);
+  void *t[] = { u[2], u[4] };
+  int s[] = { 7, 8, 9, 10, 11, 12 };
+  if (bar (t, &s[1]) != (void **) 0
+      || s[0] != 4 || s[1] != 3 || s[2] != 2 || s[3] != 1
+      || s[4] != 11 || s[5] != 12)
+    abort ();
+  return 0;
+}