1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85
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# Single-bit $or
read_verilog -noopt <<EOT
module gold(input i, output o);
assign o = 1'bx | i;
endmodule
EOT
select -assert-count 1 t:$or
copy gold coarse
copy gold fine
copy gold coarse_keepdc
copy gold fine_keepdc
cd coarse
opt_expr
select -assert-none c:*
cd fine
simplemap
opt_expr
select -assert-none c:*
cd
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
sat -verify -prove-asserts -show-ports -enable_undef miter
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
sat -verify -prove-asserts -show-ports -enable_undef miter2
cd coarse_keepdc
opt_expr -keepdc
select -assert-count 1 c:*
cd fine_keepdc
simplemap
opt_expr -keepdc
select -assert-count 1 c:*
cd
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
sat -verify -prove-asserts -show-ports -enable_undef miter3
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
sat -verify -prove-asserts -show-ports -enable_undef miter4
# Multi-bit $or
design -reset
read_verilog -noopt <<EOT
module gold(input i, output [6:0] o);
assign o = {1'bx, 1'b0, 1'b0, 1'b1, 1'bx, 1'b1, i} | {7{i}};
endmodule
EOT
select -assert-count 1 t:$or
copy gold coarse
copy gold fine
copy gold coarse_keepdc
copy gold fine_keepdc
cd coarse
opt_expr -fine
select -assert-none c:*
cd fine
simplemap
opt_expr
select -assert-none c:*
cd
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
sat -verify -prove-asserts -show-ports -enable_undef miter
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
sat -verify -prove-asserts -show-ports -enable_undef miter2
cd coarse_keepdc
opt_expr -fine -keepdc
select -assert-count 1 c:*
cd fine_keepdc
simplemap
opt_expr -keepdc
select -assert-count 2 c:*
cd
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
sat -verify -prove-asserts -show-ports -enable_undef miter3
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
sat -verify -prove-asserts -show-ports -enable_undef miter4
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