loop.c: Fix formatting.

        * loop.c: Fix formatting.
        * loop.h: Likewise.

From-SVN: r36400

gcc/ChangeLog

+2000-09-13  Kazu Hirata  <kazu@hxi.com>
+
+	* loop.c: Fix formatting.
+	* loop.h: Likewise.
+
 2000-09-13  Richard Henderson  <rth@cygnus.com>
 
 	* config/ia64/ia64.md (divsf3): New.

gcc/loop.c

@@ -78,9 +78,6 @@ static int max_luid;
 
 static int max_loop_num;
 
-
-
-
 /* Bound on pseudo register number before loop optimization.
    A pseudo has valid regscan info if its number is < max_reg_before_loop.  */
 unsigned int max_reg_before_loop;
@@ -258,7 +255,8 @@ static int iv_add_mult_cost PARAMS ((rtx, rtx, rtx, rtx));
 static void loop_dump_aux PARAMS ((const struct loop *, FILE *, int));
 void debug_loop PARAMS ((const struct loop *));
 
-typedef struct rtx_pair {
+typedef struct rtx_pair
+{
   rtx r1;
   rtx r2;
 } rtx_pair;
@@ -283,7 +281,8 @@ static int indirect_jump_in_function_p PARAMS ((rtx));
 static int compute_luids PARAMS ((rtx, rtx, int));
 
 static int biv_elimination_giv_has_0_offset PARAMS ((struct induction *,
-						   struct induction *, rtx));
+						     struct induction *,
+						     rtx));
 
 /* Benefit penalty, if a giv is not replaceable, i.e. must emit an insn to
    copy the value of the strength reduced giv to its original register.  */
@@ -2587,8 +2586,7 @@ find_and_verify_loops (f, loops)
 		       cont.  */
 		    if ((INSN_LUID (label)
 			 < INSN_LUID (loop->cont))
-			&& (INSN_LUID (label)
-			    > INSN_LUID (loop->start))
+			&& (INSN_LUID (label) > INSN_LUID (loop->start))
 			/* And if there is no later destination already
 			   recorded.  */
 			&& (! loop->cont_dominator
@@ -2812,9 +2810,9 @@ find_and_verify_loops (f, loops)
 			   off LABEL_OUTSIDE_LOOP_P bit.  */
 			if (JUMP_LABEL (insn))
 			  {
-			    for (q = 0,
-				   r = this_loop->exit_labels;
-				 r; q = r, r = LABEL_NEXTREF (r))
+			    for (q = 0, r = this_loop->exit_labels;
+				 r;
+				 q = r, r = LABEL_NEXTREF (r))
 			      if (XEXP (r, 0) == JUMP_LABEL (insn))
 				{
 				  LABEL_OUTSIDE_LOOP_P (r) = 0;
@@ -5967,7 +5965,7 @@ basic_induction_var (loop, x, mode, dest_reg, p, inc_val, mult_val, location)
 				      inc_val, mult_val, location))
 	    return 1;
 	}
-      /* ... fall through ...  */
+      /* Fall through.  */
 
       /* Can accept constant setting of biv only when inside inner most loop.
   	 Otherwise, a biv of an inner loop may be incorrectly recognized
@@ -6514,7 +6512,11 @@ simplify_giv_expr (loop, x, ext_val, benefit)
 		      {
 			int i = m->consec;
 			tem = m->insn;
-			do { tem = NEXT_INSN (tem); } while (--i > 0);
+			do
+			  {
+			    tem = NEXT_INSN (tem);
+			  }
+			while (--i > 0);
 
 			tem = find_reg_note (tem, REG_EQUAL, NULL_RTX);
 			if (tem)
@@ -7123,7 +7125,7 @@ check_ext_dependant_givs (bl, loop_info)
 	  {
 	    if (loop_dump_stream)
 	      {
-		fprintf(loop_dump_stream,
+		fprintf (loop_dump_stream,
 			 "Verified ext dependant giv at %d of reg %d\n",
 			 INSN_UID (v->insn), bl->regno);
 	      }
@@ -7146,7 +7148,7 @@ check_ext_dependant_givs (bl, loop_info)
 		      why = "biv iteration info incomplete";
 		  }
 
-		fprintf(loop_dump_stream,
+		fprintf (loop_dump_stream,
 			 "Failed ext dependant giv at %d, %s\n",
 			 INSN_UID (v->insn), why);
 	      }
@@ -8379,7 +8381,7 @@ check_dbra_loop (loop, insn_count)
 	      jump_label = XEXP (SET_SRC (PATTERN (PREV_INSN (loop_end))), 1);
 	      if (jump_label == pc_rtx)
 		jump_label = XEXP (SET_SRC (PATTERN (PREV_INSN (loop_end))), 2);
-	      new_add_val = GEN_INT (- INTVAL (bl->biv->add_val));
+	      new_add_val = GEN_INT (-INTVAL (bl->biv->add_val));
 
 	      /* Set start_value; if this is not a CONST_INT, we need
 		 to generate a SUB.
@@ -8463,7 +8465,7 @@ check_dbra_loop (loop, insn_count)
 
 	      /* Inc LABEL_NUSES so that delete_insn will
 		 not delete the label.  */
-	      LABEL_NUSES (XEXP (jump_label, 0)) ++;
+	      LABEL_NUSES (XEXP (jump_label, 0))++;
 
 	      /* Emit an insn after the end of the loop to set the biv's
 		 proper exit value if it is used anywhere outside the loop.  */
@@ -9553,7 +9555,7 @@ insert_loop_mem (mem, data)
       else
 	loop_info->mems_allocated = 32;
 
-      loop_info->mems = (loop_mem_info*)
+      loop_info->mems = (loop_mem_info *)
 	xrealloc (loop_info->mems,
 		  loop_info->mems_allocated * sizeof (loop_mem_info));
     }
@@ -10057,7 +10059,6 @@ try_copy_prop (loop, replacement, regno)
     }
 }
 
-
 /* Try to replace occurrences of pseudo REGNO with REPLACEMENT within
    loop LOOP if the order of the sets of these registers can be
    swapped.  There must be exactly one insn within the loop that sets
@@ -10145,7 +10146,6 @@ try_swap_copy_prop (loop, replacement, regno)
     }
 }
 
-
 /* Replace MEM with its associated pseudo register.  This function is
    called from load_mems via for_each_rtx.  DATA is actually a pointer
    to a structure describing the instruction currently being scanned
@@ -10156,7 +10156,7 @@ replace_loop_mem (mem, data)
      rtx *mem;
      void *data;
 {
-  loop_replace_args *args = (loop_replace_args *)data;
+  loop_replace_args *args = (loop_replace_args *) data;
   rtx m = *mem;
 
   if (m == NULL_RTX)
@@ -10187,7 +10187,6 @@ replace_loop_mem (mem, data)
   return 0;
 }
 
-
 static void
 replace_loop_mems (insn, mem, reg)
      rtx insn;
@@ -10203,7 +10202,6 @@ replace_loop_mems (insn, mem, reg)
   for_each_rtx (&insn, replace_loop_mem, &args);
 }
 
-
 /* Replace one register with another.  Called through for_each_rtx; PX points
    to the rtx being scanned.  DATA is actually a pointer to
    a structure of arguments.  */
@@ -10214,7 +10212,7 @@ replace_loop_reg (px, data)
      void *data;
 {
   rtx x = *px;
-  loop_replace_args *args = (loop_replace_args *)data;
+  loop_replace_args *args = (loop_replace_args *) data;
 
   if (x == NULL_RTX)
     return 0;
@@ -10225,7 +10223,6 @@ replace_loop_reg (px, data)
   return 0;
 }
 
-
 static void
 replace_loop_regs (insn, reg, replacement)
      rtx insn;
@@ -10241,7 +10238,6 @@ replace_loop_regs (insn, reg, replacement)
   for_each_rtx (&insn, replace_loop_reg, &args);
 }
 
-
 /* Replace occurrences of the old exit label for the loop with the new
    one.  DATA is an rtx_pair containing the old and new labels,
    respectively.  */
@@ -10283,7 +10279,8 @@ replace_label (x, data)
 
 #define LOOP_INSN_UID(INSN) ((INSN) ? INSN_UID (INSN) : -1)
 
-static void loop_dump_aux (loop, file, verbose)
+static void
+loop_dump_aux (loop, file, verbose)
      const struct loop *loop;
      FILE *file;
      int verbose;
@@ -10324,7 +10321,7 @@ static void loop_dump_aux (loop, file, verbose)
 	       LOOP_INSN_UID (loop->end));
       fprintf (file, ";;  top %d (%d), scan start %d (%d)\n",
 	       LOOP_BLOCK_NUM (loop->top),
-	       LOOP_INSN_UID (loop->top) ,
+	       LOOP_INSN_UID (loop->top),
 	       LOOP_BLOCK_NUM (loop->scan_start),
 	       LOOP_INSN_UID (loop->scan_start));
       fprintf (file, ";;  exit_count %d", loop->exit_count);
@@ -10347,7 +10344,6 @@ static void loop_dump_aux (loop, file, verbose)
     }
 }
 
-
 /* Call this function from the debugger to dump LOOP.  */
 
 void

gcc/loop.h

@@ -25,7 +25,6 @@ Boston, MA 02111-1307, USA.  */
 #define LOOP_UNROLL 1
 #define LOOP_BCT 2
 
-
 /* Get the loop info pointer of a loop.  */
 #define LOOP_INFO(LOOP) ((struct loop_info *) (LOOP)->aux)
 
@@ -52,7 +51,11 @@ Boston, MA 02111-1307, USA.  */
 
 /* An enum for the two different types of givs, those that are used
    as memory addresses and those that are calculated into registers.  */
-enum g_types { DEST_ADDR, DEST_REG };
+enum g_types
+{
+  DEST_ADDR,
+  DEST_REG
+};
 
 /* A `struct induction' is created for every instruction that sets
    an induction variable (either a biv or a giv).  */
@@ -148,7 +151,8 @@ struct induction
 
 /* A `struct iv_class' is created for each biv.  */
 
-struct iv_class {
+struct iv_class
+{
   unsigned int regno;		/* Pseudo reg which is the biv.  */
   int biv_count;		/* Number of insns setting this reg.  */
   struct induction *biv;	/* List of all insns that set this reg.  */
@@ -170,7 +174,6 @@ struct iv_class {
 				   biv controls.  */
 };
 
-
 typedef struct loop_mem_info
 {
   rtx mem;      /* The MEM itself.  */
@@ -178,7 +181,6 @@ typedef struct loop_mem_info
   int optimize; /* Nonzero if we can optimize access to this MEM.  */
 } loop_mem_info;
 
-
 struct loop_ivs
 {
   /* Indexed by register number, indicates whether or not register is
@@ -207,7 +209,6 @@ struct loop_ivs
   unsigned int last_increment_giv;
 };
 
-
 struct loop_regs
 {
   int num;
@@ -245,7 +246,6 @@ struct loop_regs
   int multiple_uses;
 };
 
-
 /* Information pertaining to a loop.  */
 
 struct loop_info
@@ -321,8 +321,13 @@ struct loop_info
 };
 
 /* Definitions used by the basic induction variable discovery code.  */
-enum iv_mode { UNKNOWN_INDUCT, BASIC_INDUCT, NOT_BASIC_INDUCT,
-		 GENERAL_INDUCT };
+enum iv_mode
+{
+  UNKNOWN_INDUCT,
+  BASIC_INDUCT,
+  NOT_BASIC_INDUCT,
+  GENERAL_INDUCT
+};
 
 /* Variables declared in loop.c, but also needed in unroll.c.  */