Update profile in gimple_flow_call_edges_add

[Jan Hubicka]

Hi,
another place we produce edges without profile are fake edges in 
flow_call_edges_add.
These are probably not that important, but it is better to have things 
consistent.

Bootstrapped/regtested x86_64-linux, comitted.

Honza

        * cfgrtl.c (rtl_flow_call_edges_add): Update profile.
        * tree-cfg.c (gimple_flow_call_edges_add): Likewise.
        * profile-count.h (max_safe_multiplier): Make unsigned.
        (profile_count::guessed_zero): New.
Index: cfgrtl.c
===================================================================
--- cfgrtl.c    (revision 249866)
+++ cfgrtl.c    (working copy)
@@ -4904,7 +4904,9 @@ rtl_flow_call_edges_add (sbitmap blocks)
                    blocks_split++;
                }
 
-             make_edge (bb, EXIT_BLOCK_PTR_FOR_FN (cfun), EDGE_FAKE);
+             edge ne = make_edge (bb, EXIT_BLOCK_PTR_FOR_FN (cfun), EDGE_FAKE);
+             ne->probability = profile_probability::guessed_never ();
+             ne->count = profile_count::guessed_zero ();
            }
 
          if (insn == BB_HEAD (bb))
Index: profile-count.h
===================================================================
--- profile-count.h     (revision 249866)
+++ profile-count.h     (working copy)
@@ -506,7 +506,7 @@ class GTY(()) profile_count
   /* Assume numbers smaller than this to multiply.  This is set to make
      testsuite pass, in future we may implement precise multiplication in higer
      rangers.  */
-  static const int64_t max_safe_multiplier = 131072;
+  static const uint64_t max_safe_multiplier = 131072;
 public:
 
   /* Used for counters which are expected to be never executed.  */
@@ -514,6 +514,13 @@ public:
     {
       return from_gcov_type (0);
     }
+  static profile_count guessed_zero ()
+    {
+      profile_count c;
+      c.m_val = 0;
+      c.m_quality = profile_guessed;
+      return c;
+    }
   static profile_count one ()
     {
       return from_gcov_type (1);
Index: tree-cfg.c
===================================================================
--- tree-cfg.c  (revision 249866)
+++ tree-cfg.c  (working copy)
@@ -8211,7 +8211,9 @@ gimple_flow_call_edges_add (sbitmap bloc
                      if (e)
                        blocks_split++;
                    }
-                 make_edge (bb, EXIT_BLOCK_PTR_FOR_FN (cfun), EDGE_FAKE);
+                 e = make_edge (bb, EXIT_BLOCK_PTR_FOR_FN (cfun), EDGE_FAKE);
+                 e->probability = profile_probability::guessed_never ();
+                 e->count = profile_count::guessed_zero ();
                }
              gsi_prev (&gsi);
            }
@@ -8220,7 +8222,7 @@ gimple_flow_call_edges_add (sbitmap bloc
     }
 
   if (blocks_split)
-    verify_flow_info ();
+    checking_verify_flow_info ();
 
   return blocks_split;
 }