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list decrement must use capacity, not length

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Folkert 2023-01-14 00:15:50 +01:00
parent 3fda3965ec
commit 437498b7ac
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3 changed files with 19 additions and 6 deletions
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4
crates/compiler/gen_llvm/src/llvm/refcounting.rs
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@ -5,7 +5,7 @@ use crate::llvm::build::{
add_func, cast_basic_basic, get_tag_id, tag_pointer_clear_tag_id, use_roc_value, Env,
WhenRecursive, FAST_CALL_CONV,
};
use crate::llvm::build_list::{incrementing_elem_loop, list_len, load_list};
use crate::llvm::build_list::{incrementing_elem_loop, list_capacity, load_list};
use crate::llvm::convert::{basic_type_from_layout, zig_str_type, RocUnion};
use bumpalo::collections::Vec;
use inkwell::basic_block::BasicBlock;
@ -758,7 +758,7 @@ fn modify_refcount_list_help<'a, 'ctx, 'env>(
let parent = fn_val;
let original_wrapper = arg_val.into_struct_value();
let len = list_len(builder, original_wrapper);
let len = list_capacity(builder, original_wrapper);
let is_non_empty = builder.build_int_compare(
IntPredicate::UGT,