toplev.c (flag_schedule_reverse_before_reload): Delete variable.

        * toplev.c (flag_schedule_reverse_before_reload): Delete variable.
        (flag_schedule_reverse_after_reload): Likewise.
        (f_options): Remove reverse scheduling support.
        * flags.h (flag_schedule_reverse_before_reload): Delete declaration.
        (flag_schedule_reverse_after_reload): Likewise.
        * haifa-sched.c (rank_for_schedule): Remove support for reverse
        scheduling.
Trivial cleanup.

From-SVN: r18020

gcc/ChangeLog

+Sun Feb 15 23:28:44 1998  Jeffrey A Law  (law@cygnus.com)
+
+	* toplev.c (flag_schedule_reverse_before_reload): Delete variable.
+	(flag_schedule_reverse_after_reload): Likewise.
+	(f_options): Remove reverse scheduling support.
+	* flags.h (flag_schedule_reverse_before_reload): Delete declaration.
+	(flag_schedule_reverse_after_reload): Likewise.
+	* haifa-sched.c (rank_for_schedule): Remove support for reverse
+	scheduling.
+	
 Sun Feb 15 21:33:55 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* gcc.c: Get system includes, prototypes and macros via "system.h"

gcc/flags.h

@@ -339,18 +339,12 @@ extern int flag_schedule_insns_after_reload;
    flag_schedule_speculative_load means allow speculative motion of some
    load insns.
    flag_schedule_speculative_load_dangerous allows speculative motion of more
-   load insns.
-   flag_schedule_reverse_before_reload means try to reverse original order
-   of insns (S).
-   flag_schedule_reverse_after_reload means try to reverse original order
-   of insns (R).  */
+   load insns.  */
 
 extern int flag_schedule_interblock;
 extern int flag_schedule_speculative;
 extern int flag_schedule_speculative_load;
 extern int flag_schedule_speculative_load_dangerous;
-extern int flag_schedule_reverse_before_reload;
-extern int flag_schedule_reverse_after_reload;
 
 /* flag_on_branch_count_reg means try to replace add-1,compare,branch tupple
    by a cheaper branch, on a count register. */

gcc/haifa-sched.c

@@ -4133,12 +4133,6 @@ rank_for_schedule (x, y)
   int val, priority_val, spec_val, prob_val, weight_val;
 
 
-  /* schedule reverse is a stress test of the scheduler correctness,
-     controlled by -fsched-reverse option.  */
-  if ((reload_completed && flag_schedule_reverse_after_reload) ||
-      (!reload_completed && flag_schedule_reverse_before_reload))
-    return INSN_LUID (tmp2) - INSN_LUID (tmp);
-
   /* prefer insn with higher priority */
   priority_val = INSN_PRIORITY (tmp2) - INSN_PRIORITY (tmp);
   if (priority_val)

gcc/toplev.c

@@ -624,19 +624,12 @@ int flag_schedule_insns_after_reload = 0;
    flag_schedule_speculative_load means allow speculative motion of some
    load insns.
    flag_schedule_speculative_load_dangerous allows speculative motion of more
-   load insns.
-   flag_schedule_reverse_before_reload means try to reverse original order
-   of insns (S).
-   flag_schedule_reverse_after_reload means try to reverse original order
-   of insns (R).  */
+   load insns.  */
 
 int flag_schedule_interblock = 1;
 int flag_schedule_speculative = 1;
 int flag_schedule_speculative_load = 0;
 int flag_schedule_speculative_load_dangerous = 0;
-int flag_schedule_reverse_before_reload = 0;
-int flag_schedule_reverse_after_reload = 0;
-
 
 /* flag_on_branch_count_reg means try to replace add-1,compare,branch tupple
    by a cheaper branch, on a count register. */
@@ -751,8 +744,6 @@ struct { char *string; int *variable; int on_value;} f_options[] =
   {"sched-spec",&flag_schedule_speculative, 1},
   {"sched-spec-load",&flag_schedule_speculative_load, 1},
   {"sched-spec-load-dangerous",&flag_schedule_speculative_load_dangerous, 1},
-  {"sched-reverse-S",&flag_schedule_reverse_before_reload, 1},
-  {"sched-reverse-R",&flag_schedule_reverse_after_reload, 1},
   {"branch-count-reg",&flag_branch_on_count_reg, 1},
 #endif  /* HAIFA */
   {"pic", &flag_pic, 1},