re PR target/44761 (sh.md warnings)

	PR target/44761
	* mode-switching.c (optimize_mode_switching): Add ATTRIBUTE_UNUSED
	to variable emited.
	* config/sh/sh.c (sh_expand_epilogue): Remove unused variable.
	* config/sh/sh.md (symGOT_load): Likewise.
	(symDTPOFF2reg): Likewise.
	(symTPOFF2reg): Likewise.

From-SVN: r162135

gcc/ChangeLog

+2010-07-13  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/44761
+	* mode-switching.c (optimize_mode_switching): Add ATTRIBUTE_UNUSED
+	to variable emited.
+	* config/sh/sh.c (sh_expand_epilogue): Remove unused variable.
+	* config/sh/sh.md (symGOT_load): Likewise.
+	(symDTPOFF2reg): Likewise.
+	(symTPOFF2reg): Likewise.
+
 2010-07-13  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 
 	* expmed.c (MAX_BITS_PER_WORD): Moved to expmed.h.

gcc/config/sh/sh.c

@@ -6861,13 +6861,12 @@ sh_expand_prologue (void)
 	  for (i = 0; i < NPARM_REGS(SImode); i++)
 	    {
 	      int rn = NPARM_REGS(SImode) + FIRST_PARM_REG - i - 1;
-	      rtx insn;
 
 	      if (i >= (NPARM_REGS(SImode)
 			- crtl->args.info.arg_count[(int) SH_ARG_INT]
 			))
 		break;
-	      insn = push (rn);
+	      push (rn);
 	    }
 	}
     }
@@ -7232,7 +7231,7 @@ sh_expand_epilogue (bool sibcall_p)
 	{
 	  enum machine_mode mode = (enum machine_mode) entry->mode;
 	  int reg = entry->reg;
-	  rtx reg_rtx, mem_rtx, post_inc = NULL_RTX, insn;
+	  rtx reg_rtx, mem_rtx, post_inc = NULL_RTX;
 
 	  offset = offset_base + entry->offset;
 	  reg_rtx = gen_rtx_REG (mode, reg);
@@ -7305,7 +7304,7 @@ sh_expand_epilogue (bool sibcall_p)
 	  if ((reg == PR_REG || SPECIAL_REGISTER_P (reg))
 	      && mem_rtx != post_inc)
 	    {
-	      insn = emit_move_insn (r0, mem_rtx);
+	      emit_move_insn (r0, mem_rtx);
 	      mem_rtx = r0;
 	    }
 	  else if (TARGET_REGISTER_P (reg))
@@ -7314,13 +7313,13 @@ sh_expand_epilogue (bool sibcall_p)
 
 	      /* Give the scheduler a bit of freedom by using up to
 		 MAX_TEMPS registers in a round-robin fashion.  */
-	      insn = emit_move_insn (tmp_reg, mem_rtx);
+	      emit_move_insn (tmp_reg, mem_rtx);
 	      mem_rtx = tmp_reg;
 	      if (*++tmp_pnt < 0)
 		tmp_pnt = schedule.temps;
 	    }
 
-	  insn = emit_move_insn (reg_rtx, mem_rtx);
+	  emit_move_insn (reg_rtx, mem_rtx);
 	}
 
       gcc_assert (entry->offset + offset_base == d + d_rounding);

gcc/config/sh/sh.md

@@ -8469,7 +8469,7 @@ label:
   ""
   "
 {
-  rtx insn, mem;
+  rtx mem;
 
   operands[2] = !can_create_pseudo_p () ? operands[0] : gen_reg_rtx (Pmode);
   operands[3] = !can_create_pseudo_p () ? operands[0] : gen_reg_rtx (Pmode);
@@ -8518,7 +8518,7 @@ label:
   mem = gen_rtx_MEM (Pmode, operands[3]);
   MEM_NOTRAP_P (mem) = 1;
   /* ??? Should we have a special alias set for the GOT?  */
-  insn = emit_move_insn (operands[0], mem);
+  emit_move_insn (operands[0], mem);
 
   DONE;
 }")
@@ -8685,7 +8685,7 @@ mov.l\\t1f,r4\\n\\
   ""
   "
 {
-  rtx dtpoffsym, insn;
+  rtx dtpoffsym;
   rtx t = (!can_create_pseudo_p ()
 	   ? operands[0]
 	   : gen_reg_rtx (GET_MODE (operands[0])));
@@ -8693,8 +8693,7 @@ mov.l\\t1f,r4\\n\\
   dtpoffsym = gen_sym2DTPOFF (operands[1]);
   PUT_MODE (dtpoffsym, Pmode);
   emit_move_insn (t, dtpoffsym);
-  insn = emit_move_insn (operands[0],
-			 gen_rtx_PLUS (Pmode, t, operands[2]));
+  emit_move_insn (operands[0], gen_rtx_PLUS (Pmode, t, operands[2]));
   DONE;
 }")
 
@@ -8736,11 +8735,11 @@ mov.l\\t1f,r0\\n\\
   ""
   "
 {
-  rtx tpoffsym, insn;
+  rtx tpoffsym;
 
   tpoffsym = gen_sym2TPOFF (operands[1]);
   PUT_MODE (tpoffsym, Pmode);
-  insn = emit_move_insn (operands[0], tpoffsym);
+  emit_move_insn (operands[0], tpoffsym);
   DONE;
 }")
 

gcc/mode-switching.c

 /* CPU mode switching
    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
-   2009 Free Software Foundation, Inc.
+   2009, 2010 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -445,7 +445,7 @@ optimize_mode_switching (void)
   int i, j;
   int n_entities;
   int max_num_modes = 0;
-  bool emited = false;
+  bool emited ATTRIBUTE_UNUSED = false;
   basic_block post_entry ATTRIBUTE_UNUSED, pre_exit ATTRIBUTE_UNUSED;
 
   for (e = N_ENTITIES - 1, n_entities = 0; e >= 0; e--)