17 lines
281 B
Coq
17 lines
281 B
Coq
|
// Regression test for GitHub issue 18 : Icarus does undef propagation of
|
||
|
|
// const multiplies incorrectly.
|
||
|
|
|
||
|
|
module bug();
|
||
|
|
|
||
|
|
wire [3:0] y = 4'b0 * 4'bx;
|
||
|
|
|
||
|
|
initial begin
|
||
|
|
#0 $display("%b", y);
|
||
|
|
if (y === 4'bxxxx)
|
||
|
|
$display("PASSED");
|
||
|
|
else
|
||
|
|
$display("FAILED");
|
||
|
|
end
|
||
|
|
|
||
|
|
endmodule
|