overflowArithmetic

fn overflowArithmetic(
    gz: *GenZir,
    scope: *Scope,
    ri: ResultInfo,
    node: Ast.Node.Index,
    params: []const Ast.Node.Index,
    tag: Zir.Inst.Extended,
) InnerError!Zir.Inst.Ref {
    const lhs = try expr(gz, scope, .{ .rl = .none }, params[0]);
    const rhs = try expr(gz, scope, .{ .rl = .none }, params[1]);
    const result = try gz.addExtendedPayload(tag, Zir.Inst.BinNode{
        .node = gz.nodeIndexToRelative(node),
        .lhs = lhs,
        .rhs = rhs,
    });
    return rvalue(gz, ri, result, node);
}