remove dead code

compiler/gen_llvm/src/llvm/refcounting.rs

@@ -1700,68 +1700,3 @@ fn modify_refcount_union_help<'a, 'ctx, 'env>(
     // this function returns void
     builder.build_return(None);
 }
-
-pub fn refcount_is_one_comparison<'a, 'ctx, 'env>(
-    env: &Env<'a, 'ctx, 'env>,
-    refcount: IntValue<'ctx>,
-) -> IntValue<'ctx> {
-    env.builder.build_int_compare(
-        IntPredicate::EQ,
-        refcount,
-        refcount_1(env.context, env.ptr_bytes),
-        "refcount_one_check",
-    )
-}
-
-pub fn list_get_refcount_ptr<'a, 'ctx, 'env>(
-    env: &Env<'a, 'ctx, 'env>,
-    layout: &Layout<'a>,
-    list_wrapper: StructValue<'ctx>,
-) -> PointerValue<'ctx> {
-    // fetch the pointer to the array data, as an integer
-    let ptr_as_int = env
-        .builder
-        .build_extract_value(list_wrapper, Builtin::WRAPPER_PTR, "read_list_ptr")
-        .unwrap()
-        .into_int_value();
-
-    get_refcount_ptr_help(env, layout, ptr_as_int)
-}
-
-pub fn refcount_offset<'a, 'ctx, 'env>(env: &Env<'a, 'ctx, 'env>, layout: &Layout<'a>) -> u64 {
-    let value_bytes = layout.stack_size(env.ptr_bytes) as u64;
-
-    match layout {
-        Layout::Builtin(Builtin::List(_)) => env.ptr_bytes as u64,
-        Layout::Builtin(Builtin::Str) => env.ptr_bytes as u64,
-        Layout::RecursivePointer | Layout::Union(_) => env.ptr_bytes as u64,
-        _ => (env.ptr_bytes as u64).max(value_bytes),
-    }
-}
-
-fn get_refcount_ptr_help<'a, 'ctx, 'env>(
-    env: &Env<'a, 'ctx, 'env>,
-    layout: &Layout<'a>,
-    ptr_as_int: IntValue<'ctx>,
-) -> PointerValue<'ctx> {
-    let builder = env.builder;
-    let ctx = env.context;
-
-    let offset = refcount_offset(env, layout);
-
-    // pointer to usize
-    let refcount_type = ptr_int(ctx, env.ptr_bytes);
-
-    // subtract offset, to access the refcount
-    let refcount_ptr = builder.build_int_sub(
-        ptr_as_int,
-        refcount_type.const_int(offset, false),
-        "make_refcount_ptr",
-    );
-
-    builder.build_int_to_ptr(
-        refcount_ptr,
-        refcount_type.ptr_type(AddressSpace::Generic),
-        "get_refcount_ptr",
-    )
-}