trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove edge.

        * trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove
        edge.

From-SVN: r182205

gcc/ChangeLog

+2011-12-11  Patrick Marlier  <patrick.marlier@gmail.com>
+
+	* trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove
+	edge.
+
 2011-12-10  Richard Henderson  <rth@redhat.com>
 
 	* config/rs6000/altivec.md (altivec_vmrghb): Rewrite pattern as

gcc/testsuite/g++.dg/tm/cgraph_edge.C

+// { dg-do compile }
+// { dg-options "-fgnu-tm -O3" }
+
+template<typename _InputIterator, typename _Distance>  inline void advance(_InputIterator& __i, _Distance __n)
+  {
+    if (__n > 0) 
+      while (__n--)
+        --__i;
+    else  
+      --__i;
+  }
+
+void  _Rb_tree_increment ();
+
+template<typename _Tp> struct _Rb_tree_iterator 
+  {
+    typedef _Rb_tree_iterator<_Tp> iterator;
+
+    iterator& operator--()
+      {
+        _Rb_tree_increment();
+      }
+  };
+
+void update ()
+  {
+    _Rb_tree_iterator<int>::iterator it;
+    __transaction_relaxed
+      {
+        advance (it, 0);
+      }
+  }
+

gcc/trans-mem.c

@@ -4481,7 +4481,6 @@ ipa_tm_transform_calls_redirect (struct cgraph_node *node,
 	{
 	  *need_ssa_rename_p |=
 	    ipa_tm_insert_gettmclone_call (node, region, gsi, stmt);
-	  cgraph_remove_edge (e);
 	  return;
 	}