From: Jan Hubicka <hubicka@ucw.cz>
Date: Tue, 4 Jul 2017 13:42:22 +0000 (+0200)
Subject: * haifa-sched.c (sched_create_recovery_edges): Update profile.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cea768b0caa43d0957d752933bb43f3d73bfed69;p=gcc.git

* haifa-sched.c (sched_create_recovery_edges): Update profile.

From-SVN: r249967
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5a1659d01c0..89678c226fd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2017-07-04  Jan Hubicka  <hubicka@ucw.cz>
+
+	* haifa-sched.c (sched_create_recovery_edges): Update profile.
+
 2017-07-04  Jan Hubicka  <hubicka@ucw.cz>
 
 	* bb-reorder.c (better_edge_p): Fix handling of uninitialized
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c
index 9632a6d75db..af0ed27b18f 100644
--- a/gcc/haifa-sched.c
+++ b/gcc/haifa-sched.c
@@ -8302,7 +8302,19 @@ sched_create_recovery_edges (basic_block first_bb, basic_block rec,
   else
     edge_flags = 0;
 
-  make_edge (first_bb, rec, edge_flags);
+  edge e2 = single_succ_edge (first_bb);
+  edge e = make_edge (first_bb, rec, edge_flags);
+
+  /* TODO: The actual probability can be determined and is computed as
+     'todo_spec' variable in create_check_block_twin and
+     in sel-sched.c `check_ds' in create_speculation_check.  */
+  e->probability = profile_probability::very_unlikely ();
+  e->count = first_bb->count.apply_probability (e->probability);
+  rec->count = e->count;
+  rec->frequency = EDGE_FREQUENCY (e);
+  e2->probability = e->probability.invert ();
+  e2->count = first_bb->count - e2->count;
+
   rtx_code_label *label = block_label (second_bb);
   rtx_jump_insn *jump = emit_jump_insn_after (targetm.gen_jump (label),
 					      BB_END (rec));