Refine formatting and comments.

gcc/
	* config/nds32/nds32.c: Refine formatting and comments.
	* config/nds32/nds32.h: Likewise.
	* config/nds32/nds32.md: Likewise.
	* config/nds32/nds32-cost.c: Likewise.
	* config/nds32/nds32-isr.c: Likewise.
	* config/nds32/nds32-md-auxiliary.c: Likewise.
	* config/nds32/nds32-multiple.md: Likewise.
	* config/nds32/nds32-predicates.c: Likewise.

From-SVN: r252874

gcc/ChangeLog

+2017-09-16  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	* config/nds32/nds32.c: Refine formatting and comments.
+	* config/nds32/nds32.h: Likewise.
+	* config/nds32/nds32.md: Likewise.
+	* config/nds32/nds32-cost.c: Likewise.
+	* config/nds32/nds32-isr.c: Likewise.
+	* config/nds32/nds32-md-auxiliary.c: Likewise.
+	* config/nds32/nds32-multiple.md: Likewise.
+	* config/nds32/nds32-predicates.c: Likewise.
+
 2017-09-15  Andrew Sutton  <andrew.n.sutton@gmail.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 

gcc/config/nds32/nds32.c

@@ -275,8 +275,8 @@ nds32_compute_stack_frame (void)
 	   cfun->machine->fp_size
 	   cfun->machine->gp_size
 	   cfun->machine->lp_size
-           cfun->machine->callee_saved_regs_first_regno
-           cfun->machine->callee_saved_regs_last_regno */
+	   cfun->machine->callee_saved_first_gpr_regno
+	   cfun->machine->callee_saved_last_gpr_regno */
 
       /* For v3push instructions, $fp, $gp, and $lp are always saved.  */
       cfun->machine->fp_size = 4;
@@ -319,11 +319,11 @@ nds32_compute_stack_frame (void)
 	}
     }
 
-  /* We have correctly set callee_saved_regs_first_regno
-     and callee_saved_regs_last_regno.
-     Initially, the callee_saved_regs_size is supposed to be 0.
-     As long as callee_saved_regs_last_regno is not SP_REGNUM,
-     we can update callee_saved_regs_size with new size.  */
+  /* We have correctly set callee_saved_first_gpr_regno
+     and callee_saved_last_gpr_regno.
+     Initially, the callee_saved_gpr_regs_size is supposed to be 0.
+     As long as callee_saved_last_gpr_regno is not SP_REGNUM,
+     we can update callee_saved_gpr_regs_size with new size.  */
   if (cfun->machine->callee_saved_last_gpr_regno != SP_REGNUM)
     {
       /* Compute pushed size of callee-saved registers.  */
@@ -334,7 +334,7 @@ nds32_compute_stack_frame (void)
     }
 
   /* Important: We need to make sure that
-                (fp_size + gp_size + lp_size + callee_saved_regs_size)
+		(fp_size + gp_size + lp_size + callee_saved_gpr_regs_size)
 		is 8-byte alignment.
 		If it is not, calculate the padding bytes.  */
   block_size = cfun->machine->fp_size
@@ -1672,7 +1672,7 @@ nds32_asm_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
 static bool
 nds32_warn_func_return (tree decl)
 {
-/* Naked functions are implemented entirely in assembly, including the
+  /* Naked functions are implemented entirely in assembly, including the
      return sequence, so suppress warnings about this.  */
   return !nds32_naked_function_p (decl);
 }
@@ -1911,7 +1911,6 @@ nds32_legitimate_address_p (machine_mode mode, rtx x, bool strict)
 	      && nds32_legitimate_index_p (mode, XEXP (x, 1), strict)
 	      && CONST_INT_P (XEXP (x, 1)))
 	    return true;
-
 	  else if (nds32_address_register_rtx_p (XEXP (x, 1), strict)
 		   && nds32_legitimate_index_p (mode, XEXP (x, 0), strict)
 		   && CONST_INT_P (XEXP (x, 0)))
@@ -2834,7 +2833,7 @@ nds32_initial_elimination_offset (unsigned int from_reg, unsigned int to_reg)
   nds32_compute_stack_frame ();
 
   /* Remember to consider
-     cfun->machine->callee_saved_area_padding_bytes
+     cfun->machine->callee_saved_area_gpr_padding_bytes
      when calculating offset.  */
   if (from_reg == ARG_POINTER_REGNUM && to_reg == STACK_POINTER_REGNUM)
     {
@@ -2971,7 +2970,7 @@ nds32_expand_prologue (void)
       /* adjust $fp = $sp + ($fp size) + ($gp size) + ($lp size)
 			  + (4 * callee-saved-registers)
 	 Note: No need to adjust
-               cfun->machine->callee_saved_area_padding_bytes,
+	       cfun->machine->callee_saved_area_gpr_padding_bytes,
 	       because, at this point, stack pointer is just
 	       at the position after push instruction.  */
       fp_adjust = cfun->machine->fp_size
@@ -2989,7 +2988,7 @@ nds32_expand_prologue (void)
     }
 
   /* Adjust $sp = $sp - local_size - out_args_size
-                      - callee_saved_area_padding_bytes.  */
+                      - callee_saved_area_gpr_padding_bytes.  */
   sp_adjust = cfun->machine->local_size
 	      + cfun->machine->out_args_size
 	      + cfun->machine->callee_saved_area_gpr_padding_bytes;
@@ -3074,7 +3073,7 @@ nds32_expand_epilogue (bool sibcall_p)
       /* adjust $sp = $fp - ($fp size) - ($gp size) - ($lp size)
 			  - (4 * callee-saved-registers)
 	 Note: No need to adjust
-               cfun->machine->callee_saved_area_padding_bytes,
+	       cfun->machine->callee_saved_area_gpr_padding_bytes,
 	       because we want to adjust stack pointer
 	       to the position for pop instruction.  */
       sp_adjust = cfun->machine->fp_size
@@ -3371,7 +3370,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p)
 			      - 4        ($lp size)
 			      - (4 * n)  (callee-saved registers)
 	     Note: No need to adjust
-	           cfun->machine->callee_saved_area_padding_bytes,
+		   cfun->machine->callee_saved_area_gpr_padding_bytes,
 		   because we want to adjust stack pointer
 		   to the position for pop instruction.  */
 	  sp_adjust = cfun->machine->fp_size
@@ -3394,7 +3393,7 @@ nds32_expand_epilogue_v3pop (bool sibcall_p)
 	     so we have to deal with it as well.  */
 
 	  /* Adjust $sp = $sp + local_size + out_args_size
-			      + callee_saved_area_padding_bytes.  */
+			      + callee_saved_area_gpr_padding_bytes.  */
 	  sp_adjust = cfun->machine->local_size
 		      + cfun->machine->out_args_size
 		      + cfun->machine->callee_saved_area_gpr_padding_bytes;