* gcc.c-torture/compile/20001226-1.x: Only xfail for Xtensa

[pf3gnuchains/gcc-fork.git] / gcc / sched-int.h

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index 298a94c..9ec916e 100644 (file)
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -20,6 +20,9 @@ along with GCC; see the file COPYING.  If not, write to the Free
 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 02111-1307, USA.  */
 
+/* Pointer to data describing the current DFA state.  */
+extern state_t curr_state;
+
 /* Forward declaration.  */
 struct ready_list;
 
@@ -68,19 +71,26 @@ struct deps
      too large.  */
   rtx last_pending_memory_flush;
 
-  /* The last function call we have seen.  All hard regs, and, of course,
-     the last function call, must depend on this.  */
+  /* A list of the last function calls we have seen.  We use a list to
+     represent last function calls from multiple predecessor blocks.
+     Used to prevent register lifetimes from expanding unnecessarily.  */
   rtx last_function_call;
 
+  /* A list of insns which use a pseudo register that does not already
+     cross a call.  We create dependencies between each of those insn
+     and the next call insn, to ensure that they won't cross a call after
+     scheduling is done.  */
+  rtx sched_before_next_call;
+
   /* Used to keep post-call psuedo/hard reg movements together with
      the call.  */
-  int in_post_call_group_p;
+  bool in_post_call_group_p;
 
-  /* The LOG_LINKS field of this is a list of insns which use a pseudo
-     register that does not already cross a call.  We create
-     dependencies between each of those insn and the next call insn,
-     to ensure that they won't cross a call after scheduling is done.  */
-  rtx sched_before_next_call;
+  /* Set to the tail insn of the outermost libcall block.
+
+     When nonzero, we will mark each insn processed by sched_analyze_insn
+     with SCHED_GROUP_P to ensure libcalls are scheduled as a unit.  */
+  rtx libcall_block_tail_insn;
 
   /* The maximum register number for the following arrays.  Before reload
      this is max_reg_num; after reload it is FIRST_PSEUDO_REGISTER.  */
@@ -95,6 +105,8 @@ struct deps
       rtx uses;
       rtx sets;
       rtx clobbers;
+      int uses_length;
+      int clobbers_length;
     } *reg_last;
 
   /* Element N is set for each register that has any non-zero element
@@ -181,7 +193,7 @@ struct haifa_insn_data
   int dep_count;
 
   /* An encoding of the blockage range function.  Both unit and range
-     are coded.  */
+     are coded.  This member is used only for old pipeline interface.  */
   unsigned int blockage;
 
   /* Number of instructions referring to this insn.  */
@@ -193,7 +205,8 @@ struct haifa_insn_data
 
   short cost;
 
-  /* An encoding of the function units used.  */
+  /* An encoding of the function units used.  This member is used only
+     for old pipeline interface.  */
   short units;
 
   /* This weight is an estimation of the insn's contribution to
@@ -203,7 +216,7 @@ struct haifa_insn_data
   /* Some insns (e.g. call) are not allowed to move across blocks.  */
   unsigned int cant_move : 1;
 
-  /* Set if there's DEF-USE dependance between some speculatively
+  /* Set if there's DEF-USE dependence between some speculatively
      moved load insn and this one.  */
   unsigned int fed_by_spec_load : 1;
   unsigned int is_load_insn : 1;
@@ -274,7 +287,6 @@ extern void free_deps PARAMS ((struct deps *));
 extern void init_deps_global PARAMS ((void));
 extern void finish_deps_global PARAMS ((void));
 extern void compute_forward_dependences PARAMS ((rtx, rtx));
-extern int find_insn_mem_list PARAMS ((rtx, rtx, rtx, rtx));
 extern rtx find_insn_list PARAMS ((rtx, rtx));
 extern void init_dependency_caches PARAMS ((int));
 extern void free_dependency_caches PARAMS ((void));
@@ -292,6 +304,7 @@ extern void rm_other_notes PARAMS ((rtx, rtx));
 extern int insn_issue_delay PARAMS ((rtx));
 extern int set_priorities PARAMS ((rtx, rtx));
 
+extern rtx sched_emit_insn PARAMS ((rtx));
 extern void schedule_block PARAMS ((int, int));
 extern void sched_init PARAMS ((FILE *));
 extern void sched_finish PARAMS ((void));
@@ -304,4 +317,4 @@ extern int insn_unit PARAMS ((rtx));
 extern int insn_cost PARAMS ((rtx, rtx, rtx));
 extern rtx get_unit_last_insn PARAMS ((int));
 extern int actual_hazard_this_instance PARAMS ((int, int, rtx, int, int));
-
+extern void print_insn PARAMS ((char *, rtx, int));