verilator/test_regress/t/t_constraint_array_limit.v

39 lines
899 B
Systemverilog

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2024 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0
// Test that array reduction constraints are ignored when array size exceeds --constraint-array-limit
`define stop $stop
`define checkd(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got=%0d exp=%0d\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
class Packet;
rand int data[32];
constraint c {
data.sum() with (item) < 1000;
}
function void verify();
int i;
i = randomize();
`checkd(i, 1);
endfunction
endclass
module t;
initial begin
Packet p;
int success_count;
p = new;
// Try randomization -- should fail with a warning
p.verify();
$write("*-* All Finished *-*\n");
$finish;
end
endmodule