sched-deps.c (reg_pending_uses_head): New.

        * sched-deps.c (reg_pending_uses_head): New.
        (reg_pending_barrier): Rename from reg_pending_sets_all.
        (find_insn_list): Don't mark inline.
        (find_insn_mem_list): Remove.
        (add_dependence_list, add_dependence_list_and_free): New.
        (flush_pending_lists): Replace only_write param with separate
        for_read and for_write parameters.  Update all callers.  Use
        add_dependence_list_and_free.
        (sched_analyze_1): Do not add reg dependencies here; just set
        the pending bits.  Use add_dependence_list.
        (sched_analyze_2): Likewise.
        (sched_analyze_insn): Replace schedule_barrier_found with
        reg_pending_barrier.  Add all dependencies for pending reg
        uses, sets, and clobbers.
        (sched_analyze): Don't add reg dependencies for calls, just
        set pending bits.  Use regs_invalidated_by_call.  Treat
        sched_before_next_call as a normal list, not a fake insn.
        (init_deps): No funny init for sched_before_next_call.
        (free_deps): Free pending mems lists.  Don't zero reg_last.
        (init_deps_global): Init reg_pending_uses.
        (finish_deps_global): Free it.
        * sched-int.h (deps): Make in_post_call_group_p boolean.  Update docs.
        (find_insn_mem_list): Remove.
        * sched-rgn.c (concat_INSN_LIST, concat_insn_mem_list): New.
        (propagate_deps): Use them.  Zero temp mem lists.

From-SVN: r49262

1 files changed, 10 insertions, 10 deletions

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index 2836aef..851d058 100644
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -68,19 +68,20 @@ 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;
-
-  /* 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;
+  bool in_post_call_group_p;
 
   /* The maximum register number for the following arrays.  Before reload
      this is max_reg_num; after reload it is FIRST_PSEUDO_REGISTER.  */
@@ -274,7 +275,6 @@ 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));