re PR middle-end/35099 (ICE in remove_unreachable_regions with -O -fopenmp)

	PR middle-end/35099
	* tree-cfg.c (new_label_mapper): Update cfun->last_label_uid.

	* g++.dg/gomp/pr35099.C: New test.

From-SVN: r133084

gcc/ChangeLog

+2008-03-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/35099
+	* tree-cfg.c (new_label_mapper): Update cfun->last_label_uid.
+
 2008-03-10  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR tree-optimization/35494

gcc/testsuite/ChangeLog

+2008-03-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/35099
+	* g++.dg/gomp/pr35099.C: New test.
+
 2008-03-10  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/range_check2.adb: New test.

gcc/testsuite/g++.dg/gomp/pr35099.C

+// PR middle-end/35099
+// { dg-do compile }
+// { dg-options "-O2 -fopenmp" }
+
+struct A
+{
+  ~A () throw ();
+  void foo ();
+};
+
+struct B
+{
+  B () { A ().foo (); }
+};
+
+void
+bar ()
+{
+#pragma omp parallel
+  {
+  #pragma omp single
+    B ();
+  #pragma omp for
+    for (int i = 0; i < 2; ++i)
+      B ();
+  }
+}
+
+void
+baz ()
+{
+#pragma omp parallel
+  {
+  #pragma omp single
+    B ();
+  #pragma omp single
+    B ();
+  }
+}

gcc/tree-cfg.c

@@ -5895,6 +5895,8 @@ new_label_mapper (tree decl, void *data)
   m->base.from = decl;
   m->to = create_artificial_label ();
   LABEL_DECL_UID (m->to) = LABEL_DECL_UID (decl);
+  if (LABEL_DECL_UID (m->to) >= cfun->last_label_uid)
+    cfun->last_label_uid = LABEL_DECL_UID (m->to) + 1;
 
   slot = htab_find_slot_with_hash (hash, m, m->hash, INSERT);
   gcc_assert (*slot == NULL);