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, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/torture/pr39259.C b/gcc/testsuite/g++.dg/torture/pr39259.C
new file mode 100644
index 000000000..256181fa6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr39259.C
@@ -0,0 +1,40 @@
+// PR tree-optimization/39259
+// { dg-do compile }
+// { dg-options "-O2" }
+
+
+extern "C" int __mysetjmp () __attribute__ ((__returns_twice__));
+
+class TContStatus {};
+
+class TContEvent
+{
+public:
+  inline void Execute () throw();
+};
+
+class TCont
+{
+public:
+  TContStatus ReadD (void* buf, int deadline)
+  {
+    TContEvent event;
+    event.Execute ();
+    return TContStatus();
+  }
+  TContStatus ReadI (void *buf)
+  {
+    return ReadD (buf, 1);
+  }
+};
+
+void TContEvent::Execute () throw ()
+{
+  __mysetjmp();
+}
+
+void Broken (TCont *mCont)
+{
+  mCont->ReadI(0);
+  mCont->ReadI(0);
+}