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make list inc/dec non-recursive (except when freeing the list)
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@ -741,27 +741,67 @@ fn modify_refcount_list_help<'a, 'ctx, 'env>(
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let (len, ptr) = load_list(env.builder, original_wrapper, ptr_type);
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let loop_fn = |_index, element| {
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modify_refcount_layout_help(
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env,
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parent,
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layout_ids,
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mode.to_call_mode(fn_val),
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when_recursive,
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element,
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element_layout,
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);
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};
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let refcount_ptr = PointerToRefcount::from_ptr_to_data(env, ptr);
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let call_mode = mode_to_call_mode(fn_val, mode);
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incrementing_elem_loop(env, parent, ptr, len, "modify_rc_index", loop_fn);
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match mode {
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Mode::Inc => {
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// inc is cheap; we never recurse
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refcount_ptr.modify(call_mode, layout, env);
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builder.build_unconditional_branch(cont_block);
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}
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Mode::Dec => {
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let do_recurse_block = env.context.append_basic_block(parent, "do_recurse");
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let no_recurse_block = env.context.append_basic_block(parent, "no_recurse");
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builder.build_conditional_branch(
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refcount_ptr.is_1(env),
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do_recurse_block,
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no_recurse_block,
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);
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{
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env.builder.position_at_end(no_recurse_block);
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refcount_ptr.modify(call_mode, layout, env);
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builder.build_unconditional_branch(cont_block);
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}
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{
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env.builder.position_at_end(do_recurse_block);
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let loop_fn = |_index, element| {
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modify_refcount_layout_help(
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env,
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parent,
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layout_ids,
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mode.to_call_mode(fn_val),
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when_recursive,
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element,
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element_layout,
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);
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};
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incrementing_elem_loop(env, parent, ptr, len, "modify_rc_index", loop_fn);
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builder.build_unconditional_branch(cont_block);
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}
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}
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}
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} else {
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// just increment/decrement the list itself, don't touch the elements
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let ptr_type = basic_type_from_layout(env, element_layout).ptr_type(AddressSpace::Generic);
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let (_, ptr) = load_list(env.builder, original_wrapper, ptr_type);
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let refcount_ptr = PointerToRefcount::from_ptr_to_data(env, ptr);
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let call_mode = mode_to_call_mode(fn_val, mode);
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refcount_ptr.modify(call_mode, layout, env);
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builder.build_unconditional_branch(cont_block);
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}
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let refcount_ptr = PointerToRefcount::from_list_wrapper(env, original_wrapper);
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let call_mode = mode_to_call_mode(fn_val, mode);
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refcount_ptr.modify(call_mode, layout, env);
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builder.build_unconditional_branch(cont_block);
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builder.position_at_end(cont_block);
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// this function returns void
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@ -77,11 +77,11 @@ export fn roc_panic(c_ptr: *c_void, tag_id: u32) callconv(.C) void {
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std.process.exit(0);
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}
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export fn roc_memcpy(dst: [*]u8, src: [*]u8, size: usize) callconv(.C) void{
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export fn roc_memcpy(dst: [*]u8, src: [*]u8, size: usize) callconv(.C) void {
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return memcpy(dst, src, size);
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}
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export fn roc_memset(dst: [*]u8, value: i32, size: usize) callconv(.C) void{
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export fn roc_memset(dst: [*]u8, value: i32, size: usize) callconv(.C) void {
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return memset(dst, value, size);
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}
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