Remove gratuitous changes from the alias analysis patches.

From-SVN: r14771

gcc/ChangeLog

@@ -94,10 +94,7 @@ Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
 	(alias.o): Add dependencies.
 	* alias.c: New file.
 	* sched.c: Remove alias analysis code.  It lives in alias.c now.
-	(reg_last_uses_size): Declare.
 	(sched_analyze_2): Add new arguments to true_dependence.
-	(sched_analyze_insn): Use reg_last_uses_size instead of max_reg.
-	(schedule_block): Initialize reg_last_uses_size.
 	(schedule_insns): Always call init_alias_analysis.
 	* calls.c (expand_call): Note calls to malloc, calloc, and realloc;
 	mark return value from such functions as a pointer and keep track of

gcc/sched.c

@@ -146,7 +146,6 @@ static int *sched_reg_live_length;
    such insn.  Needed for new registers which may be introduced
    by splitting insns.  */
 static rtx *reg_last_uses;
-static int reg_last_uses_size;
 static rtx *reg_last_sets;
 static regset reg_pending_sets;
 static int reg_pending_sets_all;
@@ -1486,7 +1485,7 @@ sched_analyze_insn (x, insn, loop_notes)
 {
   register RTX_CODE code = GET_CODE (x);
   rtx link;
-  int maxreg = reg_last_uses_size;
+  int maxreg = max_reg_num ();
   int i;
 
   if (code == SET || code == CLOBBER)
@@ -1523,7 +1522,7 @@ sched_analyze_insn (x, insn, loop_notes)
 
   if (loop_notes)
     {
-      int max_reg = reg_last_uses_size;
+      int max_reg = max_reg_num ();
       rtx link;
 
       for (i = 0; i < max_reg; i++)
@@ -1661,7 +1660,8 @@ sched_analyze (head, tail)
 	  if (NEXT_INSN (insn) && GET_CODE (NEXT_INSN (insn)) == NOTE
 	      && NOTE_LINE_NUMBER (NEXT_INSN (insn)) == NOTE_INSN_SETJMP)
 	    {
-	      for (i = 0; i < reg_last_uses_size; i++)
+	      int max_reg = max_reg_num ();
+	      for (i = 0; i < max_reg; i++)
 		{
 		  for (u = reg_last_uses[i]; u; u = XEXP (u, 1))
 		    add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
@@ -2636,7 +2636,7 @@ schedule_block (b, file)
     fprintf (file, ";;\t -- basic block number %d from %d to %d --\n",
 	     b, INSN_UID (basic_block_head[b]), INSN_UID (basic_block_end[b]));
 
-  reg_last_uses_size = i = max_reg_num ();
+  i = max_reg_num ();
   reg_last_uses = (rtx *) alloca (i * sizeof (rtx));
   bzero ((char *) reg_last_uses, i * sizeof (rtx));
   reg_last_sets = (rtx *) alloca (i * sizeof (rtx));