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library ieee;
use ieee.std_logic_1164.all;
entity ghdlcrash is
port (
i : in std_logic;
o : out std_logic
);
end ghdlcrash;
architecture synth of ghdlcrash is
-- Utility function to calculate minimum of two values
function min(a, b : natural) return natural is
variable m : natural := 0;
begin
-- This line makes GHDL crash
m := a when a <= b else b;
-- This works
if a <= b then m := a ; else m := b; end if;
return m;
end function;
-- Initialize general input grouping
constant CST : natural := min(0, 0);
begin
-- Phony functionality
o <= i;
end architecture;
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