* config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to flag_strength_reduce.

From-SVN: r111786

gcc/ChangeLog

+2006-03-06  Nick Clifton  <nickc@redhat.com>
+
+	* config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
+	flag_strength_reduce.
+
 2006-03-06  Ben Elliston  <bje@au.ibm.com>
 
 	* config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and

gcc/config/m32r/m32r.c

@@ -692,6 +692,17 @@ gen_compare (enum rtx_code code, rtx x, rtx y, int need_compare)
 	{
 	case EQ:
 	  if (GET_CODE (y) == CONST_INT
+	      && UINT16_P (INTVAL (y))		/* Reg equal to small const.  */
+	      && y != const0_rtx)
+	    {
+	      rtx tmp = gen_reg_rtx (SImode);		
+	      
+	      emit_insn (gen_xorsi3 (tmp, x, GEN_INT (INTVAL (y))));
+	      x = tmp;
+	      y = const0_rtx;
+	    }
+#if 0 /* Removed for miss optimizing at simplify_relational_operation().  */
+	  else if (GET_CODE (y) == CONST_INT
 	      && CMP_INT16_P (INTVAL (y))		/* Reg equal to small const.  */
 	      && y != const0_rtx)
 	    {
@@ -701,6 +712,7 @@ gen_compare (enum rtx_code code, rtx x, rtx y, int need_compare)
 	      x = tmp;
 	      y = const0_rtx;
 	    }
+#endif
 	  else if (CONSTANT_P (y))			/* Reg equal to const.  */
 	    {
 	      rtx tmp = force_reg (GET_MODE (x), y);
@@ -815,6 +827,17 @@ gen_compare (enum rtx_code code, rtx x, rtx y, int need_compare)
       /* Reg/smallconst equal comparison.  */
       if (compare_code == EQ
 	  && GET_CODE (y) == CONST_INT
+	  && UINT16_P (INTVAL (y)))
+	{
+	  rtx tmp = gen_reg_rtx (SImode);
+
+	  emit_insn (gen_xorsi3 (tmp, x, GEN_INT (INTVAL (y))));
+	  return gen_rtx_fmt_ee (code, CCmode, tmp, const0_rtx);
+	}
+      
+#if 0 /* Removed for miss optimizing at simplify_relational_operation().  */
+      if (compare_code == EQ
+	  && GET_CODE (y) == CONST_INT
 	  && CMP_INT16_P (INTVAL (y)))
 	{
 	  rtx tmp = gen_reg_rtx (SImode);
@@ -822,6 +845,7 @@ gen_compare (enum rtx_code code, rtx x, rtx y, int need_compare)
 	  emit_insn (gen_addsi3 (tmp, x, GEN_INT (-INTVAL (y))));
 	  return gen_rtx_fmt_ee (code, CCmode, tmp, const0_rtx);
 	}
+#endif
       
       /* Reg/const equal comparison.  */
       if (compare_code == EQ