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[pf3gnuchains/gcc-fork.git] / gcc / sel-sched-ir.h

diff --git a/gcc/sel-sched-ir.h b/gcc/sel-sched-ir.h
index 5516da9..c454887 100644 (file)
--- a/gcc/sel-sched-ir.h
+++ b/gcc/sel-sched-ir.h
@@ -1,6 +1,7 @@
 /* Instruction scheduling pass.  This file contains definitions used
    internally in the scheduler.
-   Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -1119,7 +1120,8 @@ get_all_loop_exits (basic_block bb)
   /* If bb is empty, and we're skipping to loop exits, then
      consider bb as a possible gate to the inner loop now.  */
   while (sel_bb_empty_or_nop_p (bb)
-        && in_current_region_p (bb))
+        && in_current_region_p (bb)
+        && EDGE_COUNT (bb->succs) > 0)
     {
       bb = single_succ (bb);
 
@@ -1573,6 +1575,7 @@ extern void sel_init_global_and_expr (bb_vec_t);
 extern void sel_finish_global_and_expr (void);
 
 extern regset compute_live (insn_t);
+extern bool register_unavailable_p (regset, rtx);
 
 /* Dependence analysis functions.  */
 extern void sel_clear_has_dependence (void);
@@ -1602,7 +1605,7 @@ extern bool sel_bb_empty_p (basic_block);
 extern bool in_current_region_p (basic_block);
 extern basic_block fallthru_bb_of_jump (rtx);
 
-extern void sel_init_bbs (bb_vec_t, basic_block);
+extern void sel_init_bbs (bb_vec_t);
 extern void sel_finish_bbs (void);
 
 extern struct succs_info * compute_succs_info (insn_t, short);
@@ -1628,7 +1631,7 @@ extern void sel_sched_region (int);
 extern loop_p get_loop_nest_for_rgn (unsigned int);
 extern bool considered_for_pipelining_p (struct loop *);
 extern void make_region_from_loop_preheader (VEC(basic_block, heap) **);
-extern void sel_add_loop_preheaders (void);
+extern void sel_add_loop_preheaders (bb_vec_t *);
 extern bool sel_is_loop_preheader_p (basic_block);
 extern void clear_outdated_rtx_info (basic_block);
 extern void free_data_sets (basic_block);