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library IEEE;
use IEEE.std_logic_1164.all;
entity bug is
port (
clk : in std_ulogic
);
end bug;
architecture behav of bug is
type fields_t is record
field_a : std_ulogic_vector;
field_b : std_ulogic;
end record;
type field_array_t is array(natural range<>) of fields_t;
function fun return std_ulogic is
variable field_array : field_array_t(0 to 1)(field_a(0 to 31));
begin
if field_array(0).field_b = '1' then -- this causes the crash
--nothing
end if;
return '0';
end function;
constant data : std_ulogic := fun;
begin
end architecture;
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