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cleanup reversed stores to make logic clearer

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Brendan Hansknecht 2023-11-20 11:30:47 -08:00
parent 2fb093d4c8
commit 3e39a32f0e
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1 changed files with 10 additions and 20 deletions
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30
crates/compiler/mono/src/ir/pattern.rs
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@ -1580,26 +1580,16 @@ fn store_list_pattern<'a>(
}, },
arguments: env.arena.alloc([list_sym, start_sym, rest_len_sym]), arguments: env.arena.alloc([list_sym, start_sym, rest_len_sym]),
}); });
stmt = Stmt::Let(*rest_sym, rest_expr, list_layout, env.arena.alloc(stmt)); let needed_stores = [
stmt = Stmt::Let(start_sym, start_expr, usize_layout, env.arena.alloc(stmt)); (total_dropped_sym, total_dropped_expr, usize_layout),
stmt = Stmt::Let( (list_len_sym, list_len_expr, usize_layout),
rest_len_sym, (rest_len_sym, rest_len_expr, usize_layout),
rest_len_expr, (start_sym, start_expr, usize_layout),
usize_layout, (*rest_sym, rest_expr, list_layout),
env.arena.alloc(stmt), ];
); for (sym, expr, lay) in needed_stores.into_iter().rev() {
stmt = Stmt::Let( stmt = Stmt::Let(sym, expr, lay, env.arena.alloc(stmt));
list_len_sym, }
list_len_expr,
usize_layout,
env.arena.alloc(stmt),
);
stmt = Stmt::Let(
total_dropped_sym,
total_dropped_expr,
usize_layout,
env.arena.alloc(stmt),
);
} }
if is_productive { if is_productive {