Convert CFN_BUILT_IN_PARITY to range-ops.

Also, as the last builtin remaining, also remove the builtin infrastrucure
routines from fold_using_range.

	* gimple-range-fold.cc (range_of_range_op): Handle no operands.
	(range_of_call): Do not check for builtins.
	(fold_using_range::range_of_builtin_call): Delete.
	(fold_using_range::range_of_builtin_int_call): Delete.
	* gimple-range-fold.h: Adjust prototypes.
	* gimple-range-op.cc (class cfn_parity): New.
	(gimple_range_op_handler::maybe_builtin_call): Set arguments.

1 files changed, 19 insertions, 0 deletions

diff --git a/gcc/gimple-range-op.cc b/gcc/gimple-range-op.cc
index 7629546..d7c6dfa 100644
--- a/gcc/gimple-range-op.cc
+++ b/gcc/gimple-range-op.cc
@@ -663,6 +663,20 @@ private:
   bool m_is_pos;
 } op_cfn_goacc_dim_size (false), op_cfn_goacc_dim_pos (true);
 
+
+// Implement range operator for CFN_BUILT_IN_
+class cfn_parity : public range_operator
+{
+public:
+  using range_operator::fold_range;
+  virtual bool fold_range (irange &r, tree type, const irange &,
+			   const irange &, relation_kind) const
+  {
+    r.set (build_zero_cst (type), build_one_cst (type));
+    return true;
+  }
+} op_cfn_parity;
+
 // Set up a gimple_range_op_handler for any built in function which can be
 // supported via range-ops.
 
@@ -795,6 +809,11 @@ gimple_range_op_handler::maybe_builtin_call ()
       m_int = &op_cfn_goacc_dim_pos;
       break;
 
+    CASE_CFN_PARITY:
+      m_valid = true;
+      m_int = &op_cfn_parity;
+      break;
+
     default:
       break;
     }