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unique case falsely flags multiple matches
> [0] %Error: t_unique_case_many.v:215: Assertion failed in top.t.get_hit: unique case, but multiple matches found for '23'h7fffff'
> %Error: t/t_unique_case_many.v:215: Verilog $stop
> Aborting...
> %Warning: vlt/t_unique_case_many: Exec of obj_vlt/t_unique_case_many/Vt_unique_case_many failed: [0] %Error: t_unique_case_many.v:215: Assertion failed in top.t.get_hit: unique case, but multiple matches found for '23'h7fffff'
>
> vlt/t_unique_case_many: %Error: Exec of obj_vlt/t_unique_case_many/Vt_unique_case_many failed: [0] %Error: t_unique_case_many.v:215: Assertion failed in top.t.get_hit: unique case, but multiple matches found for '23'h7fffff'
> vlt/t_unique_case_many: FAILED: Exec of obj_vlt/t_unique_case_many/Vt_unique_case_many failed: [0] %Error: t_unique_case_many.v:215: Assertion failed in top.t.get_hit: unique case, but multiple matches found for '23'h7fffff'
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@VarunKoyyalagunta
VarunKoyyalagunta committed Aug 1, 2024
1 parent 2f5c58b commit 939e552
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22 changes: 22 additions & 0 deletions test_regress/t/t_unique_case_many.pl
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#!/usr/bin/env perl
if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
# DESCRIPTION: Verilator: Verilog Test driver/expect definition
#
# Copyright 2003 by Wilson Snyder. This program is free software; you
# can redistribute it and/or modify it under the terms of either the GNU
# Lesser General Public License Version 3 or the Perl Artistic License
# Version 2.0.
# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0

scenarios(simulator => 1);

compile(
verilator_flags2 => ["--assert"],
);

execute(
check_finished => 1,
);

ok(1);
1;
329 changes: 329 additions & 0 deletions test_regress/t/t_unique_case_many.v
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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2024 by Varun Koyyalagunta, Tenstorrent.
// SPDX-License-Identifier: CC0-1.0

module t (/*AUTOARG*/);

localparam W = 23;

localparam [W-1:0] R0 = W'('h200000 + 0);
localparam [W-1:0] R1 = W'('h200000 + 1);
localparam [W-1:0] R2 = W'('h200000 + 2);
localparam [W-1:0] R3 = W'('h200000 + 3);
localparam [W-1:0] R4 = W'('h200000 + 4);
localparam [W-1:0] R5 = W'('h200000 + 5);
localparam [W-1:0] R6 = W'('h200000 + 6);
localparam [W-1:0] R7 = W'('h200000 + 7);
localparam [W-1:0] R8 = W'('h200000 + 8);
localparam [W-1:0] R9 = W'('h200000 + 9);
localparam [W-1:0] R10 = W'('h200000 + 10);
localparam [W-1:0] R11 = W'('h200000 + 11);
localparam [W-1:0] R12 = W'('h200000 + 12);
localparam [W-1:0] R13 = W'('h200000 + 13);
localparam [W-1:0] R14 = W'('h200000 + 14);
localparam [W-1:0] R15 = W'('h200000 + 15);
localparam [W-1:0] R16 = W'('h200000 + 16);
localparam [W-1:0] R17 = W'('h200000 + 17);
localparam [W-1:0] R18 = W'('h200000 + 18);
localparam [W-1:0] R19 = W'('h200000 + 19);
localparam [W-1:0] R20 = W'('h200000 + 20);
localparam [W-1:0] R21 = W'('h200000 + 21);
localparam [W-1:0] R22 = W'('h200000 + 22);
localparam [W-1:0] R23 = W'('h200000 + 23);
localparam [W-1:0] R24 = W'('h200000 + 24);
localparam [W-1:0] R25 = W'('h200000 + 25);
localparam [W-1:0] R26 = W'('h200000 + 26);
localparam [W-1:0] R27 = W'('h200000 + 27);
localparam [W-1:0] R28 = W'('h200000 + 28);
localparam [W-1:0] R29 = W'('h200000 + 29);
localparam [W-1:0] R30 = W'('h200000 + 30);
localparam [W-1:0] R31 = W'('h200000 + 31);
localparam [W-1:0] R32 = W'('h200000 + 32);
localparam [W-1:0] R33 = W'('h200000 + 33);
localparam [W-1:0] R34 = W'('h200000 + 34);
localparam [W-1:0] R35 = W'('h200000 + 35);
localparam [W-1:0] R36 = W'('h200000 + 36);
localparam [W-1:0] R37 = W'('h200000 + 37);
localparam [W-1:0] R38 = W'('h200000 + 38);
localparam [W-1:0] R39 = W'('h200000 + 39);
localparam [W-1:0] R40 = W'('h200000 + 40);
localparam [W-1:0] R41 = W'('h200000 + 41);
localparam [W-1:0] R42 = W'('h200000 + 42);
localparam [W-1:0] R43 = W'('h200000 + 43);
localparam [W-1:0] R44 = W'('h200000 + 44);
localparam [W-1:0] R45 = W'('h200000 + 45);
localparam [W-1:0] R46 = W'('h200000 + 46);
localparam [W-1:0] R47 = W'('h200000 + 47);
localparam [W-1:0] R48 = W'('h200000 + 48);
localparam [W-1:0] R49 = W'('h200000 + 49);
localparam [W-1:0] R50 = W'('h200000 + 50);
localparam [W-1:0] R51 = W'('h200000 + 51);
localparam [W-1:0] R52 = W'('h200000 + 52);
localparam [W-1:0] R53 = W'('h200000 + 53);
localparam [W-1:0] R54 = W'('h200000 + 54);
localparam [W-1:0] R55 = W'('h200000 + 55);
localparam [W-1:0] R56 = W'('h200000 + 56);
localparam [W-1:0] R57 = W'('h200000 + 57);
localparam [W-1:0] R58 = W'('h200000 + 58);
localparam [W-1:0] R59 = W'('h200000 + 59);
localparam [W-1:0] R60 = W'('h200000 + 60);
localparam [W-1:0] R61 = W'('h200000 + 61);
localparam [W-1:0] R62 = W'('h200000 + 62);
localparam [W-1:0] R63 = W'('h200000 + 63);
localparam [W-1:0] R64 = W'('h200000 + 64);
localparam [W-1:0] R65 = W'('h200000 + 65);
localparam [W-1:0] R66 = W'('h200000 + 66);
localparam [W-1:0] R67 = W'('h200000 + 67);
localparam [W-1:0] R68 = W'('h200000 + 68);
localparam [W-1:0] R69 = W'('h200000 + 69);
localparam [W-1:0] R70 = W'('h200000 + 70);
localparam [W-1:0] R71 = W'('h200000 + 71);
localparam [W-1:0] R72 = W'('h200000 + 72);
localparam [W-1:0] R73 = W'('h200000 + 73);
localparam [W-1:0] R74 = W'('h200000 + 74);
localparam [W-1:0] R75 = W'('h200000 + 75);
localparam [W-1:0] R76 = W'('h200000 + 76);
localparam [W-1:0] R77 = W'('h200000 + 77);
localparam [W-1:0] R78 = W'('h200000 + 78);
localparam [W-1:0] R79 = W'('h200000 + 79);
localparam [W-1:0] R80 = W'('h200000 + 80);
localparam [W-1:0] R81 = W'('h200000 + 81);
localparam [W-1:0] R82 = W'('h200000 + 82);
localparam [W-1:0] R83 = W'('h200000 + 83);
localparam [W-1:0] R84 = W'('h200000 + 84);
localparam [W-1:0] R85 = W'('h200000 + 85);
localparam [W-1:0] R86 = W'('h200000 + 86);
localparam [W-1:0] R87 = W'('h200000 + 87);
localparam [W-1:0] R88 = W'('h200000 + 88);
localparam [W-1:0] R89 = W'('h200000 + 89);
localparam [W-1:0] R90 = W'('h200000 + 90);
localparam [W-1:0] R91 = W'('h200000 + 91);
localparam [W-1:0] R92 = W'('h200000 + 92);
localparam [W-1:0] R93 = W'('h200000 + 93);
localparam [W-1:0] R94 = W'('h200000 + 94);
localparam [W-1:0] R95 = W'('h200000 + 95);
localparam [W-1:0] R96 = W'('h200000 + 96);
localparam [W-1:0] R97 = W'('h200000 + 97);
localparam [W-1:0] R98 = W'('h200000 + 98);
localparam [W-1:0] R99 = W'('h200000 + 99);
typedef struct packed {
logic r0;
logic r1;
logic r2;
logic r3;
logic r4;
logic r5;
logic r6;
logic r7;
logic r8;
logic r9;
logic r10;
logic r11;
logic r12;
logic r13;
logic r14;
logic r15;
logic r16;
logic r17;
logic r18;
logic r19;
logic r20;
logic r21;
logic r22;
logic r23;
logic r24;
logic r25;
logic r26;
logic r27;
logic r28;
logic r29;
logic r30;
logic r31;
logic r32;
logic r33;
logic r34;
logic r35;
logic r36;
logic r37;
logic r38;
logic r39;
logic r40;
logic r41;
logic r42;
logic r43;
logic r44;
logic r45;
logic r46;
logic r47;
logic r48;
logic r49;
logic r50;
logic r51;
logic r52;
logic r53;
logic r54;
logic r55;
logic r56;
logic r57;
logic r58;
logic r59;
logic r60;
logic r61;
logic r62;
logic r63;
logic r64;
logic r65;
logic r66;
logic r67;
logic r68;
logic r69;
logic r70;
logic r71;
logic r72;
logic r73;
logic r74;
logic r75;
logic r76;
logic r77;
logic r78;
logic r79;
logic r80;
logic r81;
logic r82;
logic r83;
logic r84;
logic r85;
logic r86;
logic r87;
logic r88;
logic r89;
logic r90;
logic r91;
logic r92;
logic r93;
logic r94;
logic r95;
logic r96;
logic r97;
logic r98;
logic r99;
} hit_t;
function automatic hit_t get_hit(input logic [22:0] a);
hit_t hit = '0;
unique case (a)
R0 : begin hit.r0 = 1'b1; end
R1 : begin hit.r1 = 1'b1; end
R2 : begin hit.r2 = 1'b1; end
R3 : begin hit.r3 = 1'b1; end
R4 : begin hit.r4 = 1'b1; end
R5 : begin hit.r5 = 1'b1; end
R6 : begin hit.r6 = 1'b1; end
R7 : begin hit.r7 = 1'b1; end
R8 : begin hit.r8 = 1'b1; end
R9 : begin hit.r9 = 1'b1; end
R10 : begin hit.r10 = 1'b1; end
R11 : begin hit.r11 = 1'b1; end
R12 : begin hit.r12 = 1'b1; end
R13 : begin hit.r13 = 1'b1; end
R14 : begin hit.r14 = 1'b1; end
R15 : begin hit.r15 = 1'b1; end
R16 : begin hit.r16 = 1'b1; end
R17 : begin hit.r17 = 1'b1; end
R18 : begin hit.r18 = 1'b1; end
R19 : begin hit.r19 = 1'b1; end
R20 : begin hit.r20 = 1'b1; end
R21 : begin hit.r21 = 1'b1; end
R22 : begin hit.r22 = 1'b1; end
R23 : begin hit.r23 = 1'b1; end
R24 : begin hit.r24 = 1'b1; end
R25 : begin hit.r25 = 1'b1; end
R26 : begin hit.r26 = 1'b1; end
R27 : begin hit.r27 = 1'b1; end
R28 : begin hit.r28 = 1'b1; end
R29 : begin hit.r29 = 1'b1; end
R30 : begin hit.r30 = 1'b1; end
R31 : begin hit.r31 = 1'b1; end
R32 : begin hit.r32 = 1'b1; end
R33 : begin hit.r33 = 1'b1; end
R34 : begin hit.r34 = 1'b1; end
R35 : begin hit.r35 = 1'b1; end
R36 : begin hit.r36 = 1'b1; end
R37 : begin hit.r37 = 1'b1; end
R38 : begin hit.r38 = 1'b1; end
R39 : begin hit.r39 = 1'b1; end
R40 : begin hit.r40 = 1'b1; end
R41 : begin hit.r41 = 1'b1; end
R42 : begin hit.r42 = 1'b1; end
R43 : begin hit.r43 = 1'b1; end
R44 : begin hit.r44 = 1'b1; end
R45 : begin hit.r45 = 1'b1; end
R46 : begin hit.r46 = 1'b1; end
R47 : begin hit.r47 = 1'b1; end
R48 : begin hit.r48 = 1'b1; end
R49 : begin hit.r49 = 1'b1; end
R50 : begin hit.r50 = 1'b1; end
R51 : begin hit.r51 = 1'b1; end
R52 : begin hit.r52 = 1'b1; end
R53 : begin hit.r53 = 1'b1; end
R54 : begin hit.r54 = 1'b1; end
R55 : begin hit.r55 = 1'b1; end
R56 : begin hit.r56 = 1'b1; end
R57 : begin hit.r57 = 1'b1; end
R58 : begin hit.r58 = 1'b1; end
R59 : begin hit.r59 = 1'b1; end
R60 : begin hit.r60 = 1'b1; end
R61 : begin hit.r61 = 1'b1; end
R62 : begin hit.r62 = 1'b1; end
R63 : begin hit.r63 = 1'b1; end
R64 : begin hit.r64 = 1'b1; end
R65 : begin hit.r65 = 1'b1; end
R66 : begin hit.r66 = 1'b1; end
R67 : begin hit.r67 = 1'b1; end
R68 : begin hit.r68 = 1'b1; end
R69 : begin hit.r69 = 1'b1; end
R70 : begin hit.r70 = 1'b1; end
R71 : begin hit.r71 = 1'b1; end
R72 : begin hit.r72 = 1'b1; end
R73 : begin hit.r73 = 1'b1; end
R74 : begin hit.r74 = 1'b1; end
R75 : begin hit.r75 = 1'b1; end
R76 : begin hit.r76 = 1'b1; end
R77 : begin hit.r77 = 1'b1; end
R78 : begin hit.r78 = 1'b1; end
R79 : begin hit.r79 = 1'b1; end
R80 : begin hit.r80 = 1'b1; end
R81 : begin hit.r81 = 1'b1; end
R82 : begin hit.r82 = 1'b1; end
R83 : begin hit.r83 = 1'b1; end
R84 : begin hit.r84 = 1'b1; end
R85 : begin hit.r85 = 1'b1; end
R86 : begin hit.r86 = 1'b1; end
R87 : begin hit.r87 = 1'b1; end
R88 : begin hit.r88 = 1'b1; end
R89 : begin hit.r89 = 1'b1; end
R90 : begin hit.r90 = 1'b1; end
R91 : begin hit.r91 = 1'b1; end
R92 : begin hit.r92 = 1'b1; end
R93 : begin hit.r93 = 1'b1; end
R94 : begin hit.r94 = 1'b1; end
R95 : begin hit.r95 = 1'b1; end
R96 : begin hit.r96 = 1'b1; end
R97 : begin hit.r97 = 1'b1; end
R98 : begin hit.r98 = 1'b1; end
R99 : begin hit.r99 = 1'b1; end
default: begin hit = '0; end
endcase
return hit;
endfunction

initial begin
if (get_hit(R30) !== hit_t'{r30: 1'b1, default: '0}) $stop;
if (get_hit('1) !== '0) $stop;
if (get_hit('0) !== '0) $stop;
$write("*-* All Finished *-*\n");
$finish;
end

endmodule

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