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package repro2_pkg is
function resolver(v : bit_vector) return bit;
subtype sbit_vector is (resolver) bit_vector;
procedure p(signal ack: bit; variable v: inout sbit_vector);
end repro2_pkg;
package body repro2_pkg is
function resolver(v : bit_vector) return bit is
begin
if v = (v'range => '0') then
return '0';
else
return '1';
end if;
end resolver;
procedure p(signal ack: bit; variable v: inout sbit_vector) is
begin
wait until ack = '1';
v := not v;
end p;
end;
use work.repro2_pkg.all;
entity repro2 is
end;
architecture arch of repro2 is
signal ack1, ack2 : bit := '0';
begin
process
variable v : bit_vector(7 downto 0);
begin
v := x"c3";
p (ack1, v);
assert v = x"3c" severity failure;
wait;
end process;
process
variable v : bit_vector(7 downto 0);
begin
v := x"e1";
p (ack2, v);
assert v = x"1e" severity failure;
wait;
end process;
process
begin
ack1 <= '1';
wait for 1 ns;
ack2 <= '1';
wait for 1 ns;
report "end of test";
wait;
end process;
end;
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