1 files changed, 8 insertions, 56 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index 2ca28db..858a7ff 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8569,67 +8569,19 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
         abort ();
       if (SWITCH_LABELS (exp))
 	{
-	  tree duplicate = 0;
 	  tree vec = SWITCH_LABELS (exp);
-	  size_t i, n = TREE_VEC_LENGTH (vec);
+	  size_t i = TREE_VEC_LENGTH (vec);
 
-	  for (i = 0; i < n; ++i)
+	  do
 	    {
-	      tree elt = TREE_VEC_ELT (vec, i);
-	      tree controlling_expr_type = TREE_TYPE (SWITCH_COND (exp));
-	      tree min_value = TYPE_MIN_VALUE (controlling_expr_type);
-	      tree max_value = TYPE_MAX_VALUE (controlling_expr_type);
-	      
-	      tree case_low = CASE_LOW (elt);
-	      tree case_high = CASE_HIGH (elt) ? CASE_HIGH (elt) : case_low;
-	      if (case_low && case_high)
-		{
-		  /* Case label is less than minimum for type.  */
-		  if (TREE_CODE (min_value) == INTEGER_CST
-		      && tree_int_cst_compare (case_low, min_value) < 0
-		      && tree_int_cst_compare (case_high, min_value) < 0)
-		    {
-		      warning ("case label value %d is less than minimum value for type",
-			       TREE_INT_CST (case_low));
-		      continue;
-		    }
-		  
-		  /* Case value is greater than maximum for type.  */
-		  if (TREE_CODE (max_value) == INTEGER_CST
-		      && tree_int_cst_compare (case_low, max_value) > 0
-		      && tree_int_cst_compare (case_high, max_value) > 0)
-		    {
-		      warning ("case label value %d exceeds maximum value for type",
-			       TREE_INT_CST (case_high));
-		      continue;
-		    }
-		  
-		  /* Saturate lower case label value to minimum.  */
-		  if (TREE_CODE (min_value) == INTEGER_CST
-		      && tree_int_cst_compare (case_high, min_value) >= 0
-		      && tree_int_cst_compare (case_low, min_value) < 0)
-		    {
-		      warning ("lower value %d in case label range less than minimum value for type",
-			       TREE_INT_CST (case_low));
-		      case_low = min_value;
-		    }
-		  
-		  /* Saturate upper case label value to maximum.  */
-		  if (TREE_CODE (max_value) == INTEGER_CST
-		      && tree_int_cst_compare (case_low, max_value) <= 0
-		      && tree_int_cst_compare (case_high, max_value) > 0)
-		    {
-		      warning ("upper value %d in case label range exceeds maximum value for type",
-			       TREE_INT_CST (case_high));
-		      case_high = max_value;
-		    }
-		}
-	      
-	      add_case_node (case_low, case_high, CASE_LABEL (elt), &duplicate);
-	      if (duplicate)
-		abort ();
+	      tree elt = TREE_VEC_ELT (vec, --i);
+	      add_case_node (CASE_LOW (elt), CASE_HIGH (elt),
+			     CASE_LABEL (elt));
 	    }
+	  while (i);
 	}
+      else
+	abort ();
       expand_end_case_type (SWITCH_COND (exp), TREE_TYPE (exp));
       return const0_rtx;