2013-11-06 Vladimir Makarov <vmakarov@redhat.com>

[thirdparty/gcc.git] / gcc / sched-rgn.c

diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c
index 73a236b5929a3e08e3cdbfa7f23fa35533f6d976..b2a7dbd4a944b5f4928e85efcf441ea3a329b7cf 100644 (file)
--- a/gcc/sched-rgn.c
+++ b/gcc/sched-rgn.c
@@ -3564,6 +3564,33 @@ advance_target_bb (basic_block bb, rtx insn)
 
 #endif
 \f
+static bool
+gate_handle_live_range_shrinkage (void)
+{
+#ifdef INSN_SCHEDULING
+  return flag_live_range_shrinkage;
+#else
+  return 0;
+#endif
+}
+
+/* Run instruction scheduler.  */
+static unsigned int
+rest_of_handle_live_range_shrinkage (void)
+{
+#ifdef INSN_SCHEDULING
+  int saved;
+
+  initialize_live_range_shrinkage ();
+  saved = flag_schedule_interblock;
+  flag_schedule_interblock = false;
+  schedule_insns ();
+  flag_schedule_interblock = saved;
+  finish_live_range_shrinkage ();
+#endif
+  return 0;
+}
+
 static bool
 gate_handle_sched (void)
 {
@@ -3622,6 +3649,45 @@ rest_of_handle_sched2 (void)
 
 namespace {
 
+const pass_data pass_data_live_range_shrinkage =
+{
+  RTL_PASS, /* type */
+  "lr_shrinkage", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  true, /* has_gate */
+  true, /* has_execute */
+  TV_LIVE_RANGE_SHRINKAGE, /* tv_id */
+  0, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  ( TODO_df_finish | TODO_verify_rtl_sharing
+    | TODO_verify_flow ), /* todo_flags_finish */
+};
+
+class pass_live_range_shrinkage : public rtl_opt_pass
+{
+public:
+  pass_live_range_shrinkage(gcc::context *ctxt)
+    : rtl_opt_pass(pass_data_live_range_shrinkage, ctxt)
+  {}
+
+  /* opt_pass methods: */
+  bool gate () { return gate_handle_live_range_shrinkage (); }
+  unsigned int execute () { return rest_of_handle_live_range_shrinkage (); }
+
+}; // class pass_live_range_shrinkage
+
+} // anon namespace
+
+rtl_opt_pass *
+make_pass_live_range_shrinkage (gcc::context *ctxt)
+{
+  return new pass_live_range_shrinkage (ctxt);
+}
+
+namespace {
+
 const pass_data pass_data_sched =
 {
   RTL_PASS, /* type */