tree-ssa-uninit: clean up is_value_included_in

2019-05-15  Vladislav Ivanishin  <vlad@ispras.ru>

	* tree-ssa-uninit.c (is_value_included_in): Remove is_unsigned and merge
	semantically equivalent branches (left over after prior refactorings).

From-SVN: r271207

gcc/ChangeLog

+2019-05-15  Vladislav Ivanishin  <vlad@ispras.ru>
+
+	* tree-ssa-uninit.c (is_value_included_in): Remove is_unsigned and merge
+	semantically equivalent branches (left over after prior refactorings).
+
 2019-05-15  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/88828

gcc/tree-ssa-uninit.c

@@ -1017,23 +1017,18 @@ static bool
 is_value_included_in (tree val, tree boundary, enum tree_code cmpc)
 {
   bool inverted = false;
-  bool is_unsigned;
   bool result;
 
   /* Only handle integer constant here.  */
   if (TREE_CODE (val) != INTEGER_CST || TREE_CODE (boundary) != INTEGER_CST)
     return true;
 
-  is_unsigned = TYPE_UNSIGNED (TREE_TYPE (val));
-
   if (cmpc == GE_EXPR || cmpc == GT_EXPR || cmpc == NE_EXPR)
     {
       cmpc = invert_tree_comparison (cmpc, false);
       inverted = true;
     }
 
-  if (is_unsigned)
-    {
   if (cmpc == EQ_EXPR)
     result = tree_int_cst_equal (val, boundary);
   else if (cmpc == LT_EXPR)
@@ -1043,20 +1038,6 @@ is_value_included_in (tree val, tree boundary, enum tree_code cmpc)
       gcc_assert (cmpc == LE_EXPR);
       result = tree_int_cst_le (val, boundary);
     }
-    }
-  else
-    {
-      if (cmpc == EQ_EXPR)
-	result = tree_int_cst_equal (val, boundary);
-      else if (cmpc == LT_EXPR)
-	result = tree_int_cst_lt (val, boundary);
-      else
-	{
-	  gcc_assert (cmpc == LE_EXPR);
-	  result = (tree_int_cst_equal (val, boundary)
-		    || tree_int_cst_lt (val, boundary));
-	}
-    }
 
   if (inverted)
     result ^= 1;