verilator/test_regress/t/t_constraint_struct_complex.v

493 lines
17 KiB
Systemverilog
Executable File

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2025 by PlanV GmbH.
// SPDX-License-Identifier: CC0-1.0
class ArrayStruct;
/* verilator lint_off SIDEEFFECT */
// Struct with an unpacked array
typedef int arr_3_t[3];
typedef int arr_4_t[4];
typedef struct {
rand arr_3_t arr_3;
arr_4_t arr_4;
rand int arr[3];
} unpacked_struct_t;
// Struct with a dynamic array
typedef struct {
rand int arr[];
} dynamic_struct_t;
// Struct with a queue
typedef struct {
rand int arr[$];
} queue_struct_t;
// Struct with an associative array (string as index)
typedef struct {
rand int arr[string];
} associative_struct_t;
// Struct with a multi-dimensional array
typedef struct {
rand int arr[2][3];
} multi_dim_struct_t;
// Struct with a mix of dynamic and unpacked arrays
typedef struct {
rand int mix_arr[3][];
} mixed_struct_t;
rand unpacked_struct_t s1;
rand dynamic_struct_t s2;
rand queue_struct_t s3;
rand associative_struct_t s4;
rand multi_dim_struct_t s5;
rand mixed_struct_t s6;
constraint c_unpacked {
foreach (s1.arr[i]) s1.arr[i] inside {1, 2, 3, 4};
foreach (s1.arr_3[i]) s1.arr_3[i] inside {11, 22, 33, 44, 55};
}
constraint c_dynamic { foreach (s2.arr[i]) s2.arr[i] inside {[10:20]}; }
constraint c_queue { foreach (s3.arr[i]) s3.arr[i] inside {[100:200]}; }
constraint c_assoc {
s4.arr["one"] inside {[10:50]};
s4.arr["two"] inside {[51:100]};
s4.arr["three"] inside {[101:150]};
}
constraint c_multi_dim { foreach (s5.arr[i, j]) s5.arr[i][j] inside {[0:9]}; }
constraint c_mix {
foreach (s6.mix_arr[i, j]) s6.mix_arr[i][j] inside {[50:100]};
}
function new();
s1.arr = '{1, 2, 3};
s1.arr_3 = '{1, 2, 3};
s1.arr_4 = '{0, 2, 3, 4};
s2.arr = new[3];
foreach(s2.arr[i]) begin
s2.arr[i] = 'h0 + i;
end
s3.arr.push_back(100);
s3.arr.push_back(200);
s3.arr.push_back(300);
s4.arr["one"] = 1000;
s4.arr["two"] = 2000;
s4.arr["three"] = 3000;
s5.arr = '{ '{default:0}, '{default:0} };
foreach (s6.mix_arr[i]) begin
s6.mix_arr[i] = new[i + 1];
end
endfunction
function void print();
foreach (s1.arr[i]) $display("s1.arr[%0d] = %0d", i, s1.arr[i]);
foreach (s1.arr_3[i]) $display("s1.arr_3[%0d] = %0d", i, s1.arr_3[i]);
foreach (s1.arr_4[i]) $display("s1.arr_4[%0d] = %0d", i, s1.arr_4[i]);
foreach (s2.arr[i]) $display("s2.arr[%0d] = %0d", i, s2.arr[i]);
foreach (s3.arr[i]) $display("s3.arr[%0d] = %0d", i, s3.arr[i]);
foreach (s4.arr[i]) $display("s4.arr[\"%s\"] = %0d", i, s4.arr[i]);
foreach (s5.arr[i, j]) $display("s5.arr[%0d][%0d] = %0d", i, j, s5.arr[i][j]);
foreach (s6.mix_arr[i, j]) $display("s6.mix_arr[%0d][%0d] = %0d", i, j, s6.mix_arr[i][j]);
endfunction
// Self-test function to verify constraints
function void self_test();
foreach (s1.arr[i]) if (!(s1.arr[i] inside {1, 2, 3, 4})) $stop;
foreach (s1.arr_3[i]) if (!(s1.arr_3[i] inside {11, 22, 33, 44, 55})) $stop;
// Note: s1.arr_4[0] is not rand
if ((s1.arr_4[0] != 0) || (s1.arr_4[1] != 2) || (s1.arr_4[2] != 3) || (s1.arr_4[3] != 4)) $stop;
foreach (s2.arr[i]) if (!(s2.arr[i] inside {[10:20]})) $stop;
foreach (s3.arr[i]) if (!(s3.arr[i] inside {[100:200]})) $stop;
if (!(s4.arr["one"] inside {[10:50]})) $stop;
if (!(s4.arr["two"] inside {[51:100]})) $stop;
if (!(s4.arr["three"] inside {[101:150]})) $stop;
foreach (s5.arr[i, j]) if (!(s5.arr[i][j] inside {[0:9]})) $stop;
foreach (s6.mix_arr[i]) if (s6.mix_arr[i].size() == 0) $stop;
foreach (s6.mix_arr[i, j]) if (!(s6.mix_arr[i][j] inside {[50:100]})) $stop;
endfunction
/* verilator lint_off SIDEEFFECT */
endclass
class StructArray;
/* verilator lint_off WIDTHTRUNC */
typedef struct {
rand int arr[3]; // static unpacked array
rand int a;
rand bit [3:0] b;
bit c;
} struct_t;
rand struct_t s_arr[2];
rand struct_t s_2d_arr[2][3];
rand struct_t s_dyn_arr[];
rand struct_t s_que_arr[$];
rand struct_t s_assoc_arr[string];
rand struct_t s_assoc_arr_2[bit[5:0]];
constraint c_arr {
foreach (s_arr[i])
foreach (s_arr[i].arr[j])
s_arr[i].arr[j] inside {[0:9]};
foreach (s_2d_arr[i, j])
foreach (s_2d_arr[i][j].arr[k])
s_2d_arr[i][j].arr[k] inside {[9:19]};
foreach (s_dyn_arr[i])
foreach (s_dyn_arr[i].arr[j])
s_dyn_arr[i].arr[j] inside {[19:29]};
foreach (s_que_arr[i])
foreach (s_que_arr[i].arr[j])
s_que_arr[i].arr[j] inside {[29:39]};
foreach (s_assoc_arr[i])
foreach (s_assoc_arr[i].arr[j])
s_assoc_arr[i].arr[j] inside {[39:49]};
foreach (s_assoc_arr_2[i])
foreach (s_assoc_arr_2[i].arr[j])
s_assoc_arr_2[i].arr[j] inside {[49:59]};
}
constraint c_others {
foreach (s_arr[i]) s_arr[i].a inside {[40:50]};
foreach (s_arr[i]) s_arr[i].b inside {[0:7]};
foreach (s_2d_arr[i, j]) s_2d_arr[i][j].a inside {[50:60]};
foreach (s_dyn_arr[i]) s_dyn_arr[i].a inside {[60:70]};
foreach (s_que_arr[i]) s_que_arr[i].a inside {[70:80]};
foreach (s_assoc_arr[i]) s_assoc_arr[i].a inside {[80:90]};
foreach (s_assoc_arr_2[i]) s_assoc_arr_2[i].a inside {[90:100]};
}
function new();
foreach (s_arr[i]) begin
foreach (s_arr[i].arr[j])
s_arr[i].arr[j] = j;
s_arr[i].a = 40 + i;
s_arr[i].b = i;
s_arr[i].c = 0;
end
foreach (s_2d_arr[i, j]) begin
foreach (s_2d_arr[i][j].arr[k])
s_2d_arr[i][j].arr[k] = k + 10;
s_2d_arr[i][j].a = 50 + i + j;
s_2d_arr[i][j].b = i + j;
s_2d_arr[i][j].c = 0;
end
foreach (s_dyn_arr[i]) begin
s_dyn_arr = new[3];
foreach (s_dyn_arr[i].arr[j])
s_dyn_arr[i].arr[j] = j + 20;
s_dyn_arr[i].a = 60 + i;
s_dyn_arr[i].b = i;
s_dyn_arr[i].c = 0;
end
for (int i = 0; i < 3; i++) begin
s_que_arr.push_back('{arr: '{30, 31, 32}, a: 70 + i, b: i, c: 0});
end
// Associative array with string index
foreach (s_assoc_arr["x"].arr[j])
s_assoc_arr["x"].arr[j] = j + 40;
foreach (s_assoc_arr["y"].arr[j])
s_assoc_arr["y"].arr[j] = j + 50;
foreach (s_assoc_arr["long_string_index"].arr[j])
s_assoc_arr["long_string_index"].arr[j] = j + 60;
s_assoc_arr["x"].a = 80;
s_assoc_arr["x"].b = 0;
s_assoc_arr["x"].c = 0;
s_assoc_arr["y"].a = 90;
s_assoc_arr["y"].b = 1;
s_assoc_arr["y"].c = 0;
s_assoc_arr["long_string_index"].a = 100;
s_assoc_arr["long_string_index"].b = 2;
s_assoc_arr["long_string_index"].c = 0;
foreach (s_assoc_arr_2[6'd30].arr[j])
s_assoc_arr_2[6'd30].arr[j] = j + 70;
foreach (s_assoc_arr_2[6'd7].arr[j])
s_assoc_arr_2[6'd7].arr[j] = j + 80;
s_assoc_arr_2[6'd30].a = 90;
s_assoc_arr_2[6'd30].b = 0;
s_assoc_arr_2[6'd30].c = 0;
s_assoc_arr_2[6'd7].a = 100;
s_assoc_arr_2[6'd7].b = 1;
s_assoc_arr_2[6'd7].c = 0;
endfunction
function void print();
foreach (s_arr[i]) begin
foreach (s_arr[i].arr[j])
$display("s_arr[%0d].arr[%0d] = %0d", i, j, s_arr[i].arr[j]);
$display("s_arr[%0d].a = %0d", i, s_arr[i].a);
$display("s_arr[%0d].b = %0d", i, s_arr[i].b);
$display("s_arr[%0d].c = %0d", i, s_arr[i].c);
end
foreach (s_2d_arr[i, j]) begin
foreach (s_2d_arr[i][j].arr[k])
$display("s_2d_arr[%0d][%0d].arr[%0d] = %0d", i, j, k, s_2d_arr[i][j].arr[k]);
$display("s_2d_arr[%0d][%0d].a = %0d", i, j, s_2d_arr[i][j].a);
$display("s_2d_arr[%0d][%0d].b = %0d", i, j, s_2d_arr[i][j].b);
$display("s_2d_arr[%0d][%0d].c = %0d", i, j, s_2d_arr[i][j].c);
end
foreach (s_dyn_arr[i]) begin
foreach (s_dyn_arr[i].arr[j])
$display("s_dyn_arr[%0d].arr[%0d] = %0d", i, j, s_dyn_arr[i].arr[j]);
$display("s_dyn_arr[%0d].a = %0d", i, s_dyn_arr[i].a);
$display("s_dyn_arr[%0d].b = %0d", i, s_dyn_arr[i].b);
$display("s_dyn_arr[%0d].c = %0d", i, s_dyn_arr[i].c);
end
foreach (s_que_arr[i]) begin
foreach (s_que_arr[i].arr[j])
$display("s_que_arr[%0d].arr[%0d] = %0d", i, j, s_que_arr[i].arr[j]);
$display("s_que_arr[%0d].a = %0d", i, s_que_arr[i].a);
$display("s_que_arr[%0d].b = %0d", i, s_que_arr[i].b);
$display("s_que_arr[%0d].c = %0d", i, s_que_arr[i].c);
end
foreach (s_assoc_arr["x"].arr[j])
$display("s_assoc_arr[x].arr[%0d] = %0d", j, s_assoc_arr["x"].arr[j]);
$display("s_assoc_arr[x].a = %0d", s_assoc_arr["x"].a);
$display("s_assoc_arr[x].b = %0d", s_assoc_arr["x"].b);
$display("s_assoc_arr[x].c = %0d", s_assoc_arr["x"].c);
foreach (s_assoc_arr["y"].arr[j])
$display("s_assoc_arr[y].arr[%0d] = %0d", j, s_assoc_arr["y"].arr[j]);
$display("s_assoc_arr[y].a = %0d", s_assoc_arr["y"].a);
$display("s_assoc_arr[y].b = %0d", s_assoc_arr["y"].b);
$display("s_assoc_arr[y].c = %0d", s_assoc_arr["y"].c);
foreach (s_assoc_arr["long_string_index"].arr[j])
$display("s_assoc_arr[long_string_index].arr[%0d] = %0d", j, s_assoc_arr["long_string_index"].arr[j]);
$display("s_assoc_arr[long_string_index].a = %0d", s_assoc_arr["long_string_index"].a);
$display("s_assoc_arr[long_string_index].b = %0d", s_assoc_arr["long_string_index"].b);
$display("s_assoc_arr[long_string_index].c = %0d", s_assoc_arr["long_string_index"].c);
foreach (s_assoc_arr_2[6'd30].arr[j])
$display("s_assoc_arr_2[30].arr[%0d] = %0d", j, s_assoc_arr_2[6'd30].arr[j]);
$display("s_assoc_arr_2[30].a = %0d", s_assoc_arr_2[6'd30].a);
$display("s_assoc_arr_2[30].b = %0d", s_assoc_arr_2[6'd30].b);
$display("s_assoc_arr_2[30].c = %0d", s_assoc_arr_2[6'd30].c);
foreach (s_assoc_arr_2[6'd7].arr[j])
$display("s_assoc_arr_2[7].arr[%0d] = %0d", j, s_assoc_arr_2[6'd7].arr[j]);
$display("s_assoc_arr_2[7].a = %0d", s_assoc_arr_2[6'd7].a);
$display("s_assoc_arr_2[7].b = %0d", s_assoc_arr_2[6'd7].b);
$display("s_assoc_arr_2[7].c = %0d", s_assoc_arr_2[6'd7].c);
endfunction
function void self_test();
foreach (s_arr[i]) begin
foreach (s_arr[i].arr[j])
if (!(s_arr[i].arr[j] inside {[0:9]})) $stop;
if (!(s_arr[i].a inside {[40:50]})) $stop;
end
foreach (s_2d_arr[i, j]) begin
foreach (s_2d_arr[i][j].arr[k])
if (!(s_2d_arr[i][j].arr[k] inside {[9:19]})) $stop;
if (!(s_2d_arr[i][j].a inside {[50:60]})) $stop;
end
foreach (s_dyn_arr[i]) begin
foreach (s_dyn_arr[i].arr[j])
if (!(s_dyn_arr[i].arr[j] inside {[19:29]})) $stop;
if (!(s_dyn_arr[i].a inside {[60:70]})) $stop;
end
foreach (s_que_arr[i]) begin
foreach (s_que_arr[i].arr[j])
if (!(s_que_arr[i].arr[j] inside {[29:39]})) $stop;
if (!(s_que_arr[i].a inside {[70:80]})) $stop;
end
foreach (s_assoc_arr["x"].arr[j])
if (!(s_assoc_arr["x"].arr[j] inside {[39:49]})) $stop;
if (!(s_assoc_arr["x"].a inside {[80:90]})) $stop;
foreach (s_assoc_arr["y"].arr[j])
if (!(s_assoc_arr["y"].arr[j] inside {[39:49]})) $stop;
if (!(s_assoc_arr["y"].a inside {[80:90]})) $stop;
foreach (s_assoc_arr["long_string_index"].arr[j])
if (!(s_assoc_arr["long_string_index"].arr[j] inside {[39:49]})) $stop;
if (!(s_assoc_arr["long_string_index"].a inside {[80:90]})) $stop;
foreach (s_assoc_arr_2[6'd30].arr[j])
if (!(s_assoc_arr_2[6'd30].arr[j] inside {[49:59]})) $stop;
if (!(s_assoc_arr_2[6'd30].a inside {[90:100]})) $stop;
foreach (s_assoc_arr_2[6'd7].arr[j])
if (!(s_assoc_arr_2[6'd7].arr[j] inside {[49:59]})) $stop;
if (!(s_assoc_arr_2[6'd7].a inside {[90:100]})) $stop;
endfunction
/* verilator lint_off WIDTHTRUNC */
endclass
class MixedStructure;
/* verilator lint_off WIDTHTRUNC */
typedef struct {
rand int arr[3]; // static unpacked array
rand int dyn[]; // dynamic array
rand int que[$]; // queue
rand int assoc[string]; // associative array with string key
rand int a;
rand bit [3:0] b;
bit c;
} struct_t;
rand struct_t s_arr[2];
constraint c_static {
foreach (s_arr[i])
foreach (s_arr[i].arr[j])
s_arr[i].arr[j] inside {[0:9]};
}
constraint c_dyn {
foreach (s_arr[i])
foreach (s_arr[i].dyn[j])
s_arr[i].dyn[j] inside {[10:19]};
}
constraint c_queue {
foreach (s_arr[i])
foreach (s_arr[i].que[j])
s_arr[i].que[j] inside {[20:29]};
}
constraint c_assoc {
foreach (s_arr[i]) {
s_arr[i].assoc["x"] inside {[30:39]};
s_arr[i].assoc["y"] inside {[30:39]};
}
}
constraint c_other {
foreach (s_arr[i]) s_arr[i].a inside {[40:50]};
}
function new();
foreach (s_arr[i]) begin
s_arr[i].dyn = new[2];
s_arr[i].que = {0, 0};
s_arr[i].assoc = '{"x": 0, "y": 0};
foreach (s_arr[i].arr[j])
s_arr[i].arr[j] = j;
foreach (s_arr[i].dyn[j])
s_arr[i].dyn[j] = 10 + j;
foreach (s_arr[i].que[j])
s_arr[i].que[j] = 20 + j;
s_arr[i].assoc["x"] = i + 30;
s_arr[i].assoc["y"] = i + 31;
s_arr[i].a = 40 + i;
s_arr[i].b = i;
s_arr[i].c = i;
end
endfunction
function void print();
foreach (s_arr[i]) begin
foreach (s_arr[i].arr[j])
$display("s_arr[%0d].arr[%0d] = %0d", i, j, s_arr[i].arr[j]);
foreach (s_arr[i].dyn[j])
$display("s_arr[%0d].dyn[%0d] = %0d", i, j, s_arr[i].dyn[j]);
foreach (s_arr[i].que[j])
$display("s_arr[%0d].que[%0d] = %0d", i, j, s_arr[i].que[j]);
$display("s_arr[%0d].assoc[\"x\"] = %0d", i, s_arr[i].assoc["x"]);
$display("s_arr[%0d].assoc[\"y\"] = %0d", i, s_arr[i].assoc["y"]);
$display("s_arr[%0d].a = %0d", i, s_arr[i].a);
$display("s_arr[%0d].b = %0d", i, s_arr[i].b);
$display("s_arr[%0d].c = %0d", i, s_arr[i].c);
end
endfunction
function void self_test();
foreach (s_arr[i]) begin
foreach (s_arr[i].arr[j])
if (!(s_arr[i].arr[j] inside {[0:9]})) $stop;
foreach (s_arr[i].dyn[j])
if (!(s_arr[i].dyn[j] inside {[10:19]})) $stop;
foreach (s_arr[i].que[j])
if (!(s_arr[i].que[j] inside {[20:29]})) $stop;
if (!(s_arr[i].assoc.exists("x") && s_arr[i].assoc["x"] inside {[30:39]})) $stop;
if (!(s_arr[i].assoc.exists("y") && s_arr[i].assoc["y"] inside {[30:39]})) $stop;
if (!(s_arr[i].a inside {[40:50]})) $stop;
if (i == 0 && s_arr[i].c != 0) $stop;
if (i == 1 && s_arr[i].c != 1) $stop;
end
endfunction
/* verilator lint_off WIDTHTRUNC */
endclass
module t_constraint_struct_complex;
int success;
ArrayStruct as_c;
StructArray sa_c;
MixedStructure mixed_c;
initial begin
as_c = new();
sa_c = new();
mixed_c = new();
success = as_c.randomize();
if (success != 1) $stop;
as_c.self_test();
// as_c.print();
// $display(" ArrayStruct passed! \n");
success = sa_c.randomize();
if (success != 1) $stop;
sa_c.self_test();
// sa_c.print();
// $display(" StructArray passed! \n");
success = mixed_c.randomize();
if (success != 1) $stop;
mixed_c.self_test();
// mixed_c.print();
// $display(" MixedStructure passed! \n");
$write("*-* All Finished *-*\n");
$finish;
end
endmodule