forked from github/verilator
106 lines
2.2 KiB
Systemverilog
106 lines
2.2 KiB
Systemverilog
// DESCRIPTION: Verilator: Verilog Test module
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//
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// This file ONLY is placed into the Public Domain, for any use,
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// without warranty, 2019 by Todd Strader.
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// Test for trace file interface aliasing
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typedef struct packed {
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integer val100;
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integer val200;
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} struct_t;
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interface ifc (input logic clk,
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input integer cyc);
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integer value;
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struct_t the_struct;
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endinterface
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module t (/*AUTOARG*/
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// Inputs
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clk
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);
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input clk;
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integer cyc=0;
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ifc intf_1(.*);
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ifc intf_2(.*);
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always @(*) begin
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intf_1.value = cyc + 1;
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intf_2.value = cyc + 2;
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end
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sub_struct s1 (.intf_for_struct(intf_1));
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sub_struct s2 (.intf_for_struct(intf_2));
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sub_check c1 (.intf_for_check(intf_1));
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sub_check c2 (.intf_for_check(intf_2));
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sub_all a (.intf_one(intf_1),
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.intf_two(intf_2));
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// Intentionally longer scope name
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sub_all abcdefghijklmnopqrstuvwxyz (.intf_one(intf_2),
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.intf_two(intf_1));
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always @ (posedge clk) begin
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cyc <= cyc + 1;
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if (cyc==20) begin
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if (intf_1.value != 21) $stop;
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if (intf_2.value != 22) $stop;
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$write("*-* All Finished *-*\n");
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$finish;
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end
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end
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endmodule
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module sub_struct
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(
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ifc intf_for_struct
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);
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always @(*) begin
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intf_for_struct.the_struct.val100 = intf_for_struct.value + 100;
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intf_for_struct.the_struct.val200 = intf_for_struct.value + 200;
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end
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endmodule
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module sub_check
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(
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ifc intf_for_check
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);
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`ifdef NO_INLINE_A
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//verilator no_inline_module
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`endif
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always @(posedge intf_for_check.clk) begin
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if (intf_for_check.the_struct.val100 != intf_for_check.value + 100) $stop;
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if (intf_for_check.the_struct.val200 != intf_for_check.value + 200) $stop;
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end
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endmodule
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module sub_all
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(
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ifc intf_one,
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ifc intf_two
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);
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`ifdef NO_INLINE_B
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//verilator no_inline_module
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`endif
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ifc intf_in_sub_all (
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.clk(intf_one.clk),
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.cyc(intf_one.cyc)
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);
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assign intf_in_sub_all.value = intf_one.value + 1000;
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sub_check ac1 (.intf_for_check(intf_one));
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sub_check ac2 (.intf_for_check(intf_two));
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sub_struct as3 (.intf_for_struct(intf_in_sub_all));
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sub_check ac3 (.intf_for_check(intf_in_sub_all));
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endmodule
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