def FalseBoolAttr : AttrConstraint<CPred<"!$_self.cast<BoolAttr>().getValue()">>;
def TrueBoolAttr : AttrConstraint<CPred<"$_self.cast<BoolAttr>().getValue()">>;

def CastValueToI64: NativeCodeCall<
  "CastValueToI64($0.getLoc(), $1, &$_builder)">;

def CastValueToElementType: NativeCodeCall<
  "$_builder.create<ConvertOp>($0.getLoc(), $1, "
  "getElementTypeOrSelf($2.getType()))">;

  return axis < 0 ? axis + rank : axis;
}

/// Returns a `ConvertOp` that casts the elements to a i64 type while retaining
/// the shape of the input value.
static ConvertOp CastValueToI64(Location loc, Value value,
                                PatternRewriter *rewriter) {
  return rewriter->create<ConvertOp>(loc, value, rewriter->getIntegerType(64));
}