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, 69 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/cleanup-12.c b/gcc/testsuite/gcc.dg/cleanup-12.c
new file mode 100644
index 000000000..90de90ac8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cleanup-12.c
@@ -0,0 +1,69 @@
+/* PR middle-end/32758 */
+/* HP-UX libunwind.so doesn't provide _UA_END_OF_STACK */
+/* { dg-do run } */
+/* { dg-options "-O2 -fexceptions" } */
+/* { dg-skip-if "" { "ia64-*-hpux11.*" }  { "*" } { "" } } */
+/* Verify unwind info in presence of alloca.  */
+
+#include <unwind.h>
+#include <stdlib.h>
+#include <string.h>
+
+static _Unwind_Reason_Code
+force_unwind_stop (int version, _Unwind_Action actions,
+		   _Unwind_Exception_Class exc_class,
+		   struct _Unwind_Exception *exc_obj,
+		   struct _Unwind_Context *context,
+		   void *stop_parameter)
+{
+  if (actions & _UA_END_OF_STACK)
+    abort ();
+  return _URC_NO_REASON;
+}
+
+static void force_unwind (void)
+{
+  struct _Unwind_Exception *exc = malloc (sizeof (*exc));
+  memset (&exc->exception_class, 0, sizeof (exc->exception_class));
+  exc->exception_cleanup = 0;
+
+#ifndef __USING_SJLJ_EXCEPTIONS__
+  _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
+#else
+  _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
+#endif
+
+  abort ();
+}
+
+__attribute__((noinline))
+void foo (void *x __attribute__((unused)))
+{
+  force_unwind ();
+}
+
+__attribute__((noinline))
+int bar (unsigned int x)
+{
+  void *y = __builtin_alloca (x);
+  foo (y);
+  return 1;
+}
+
+static void handler (void *p __attribute__((unused)))
+{
+  exit (0);
+}
+
+__attribute__((noinline))
+static void doit ()
+{
+  char dummy __attribute__((cleanup (handler)));
+  bar (1024);
+}
+
+int main ()
+{
+  doit ();
+  abort ();
+}