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Merge 10bb0f472f into 0fcf5c080d

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garytwong 2025-06-04 14:06:34 +00:00 • committed by GitHub
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54
tests/verilog/unique_priority_case.ys Normal file
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@ -0,0 +1,54 @@
read_verilog -sv << EOF
module top (input A, B, C, D, E, F, output reg W, X, Y, Z);
always_comb begin
W = F;
priority case (C)
A: W = D;
B: W = E;
endcase
end
always_comb begin
X = F;
case (C)
A: X = D;
B: X = E;
endcase
end
always_comb begin
Y = F;
unique case (C)
A: Y = D;
B: Y = E;
endcase
end
always_comb begin
Z = F;
unique0 case (C)
A: Z = D;
B: Z = E;
endcase
end
endmodule
EOF
prep
# For the ones which use priority/unique, the F signal shouldn't be included in
# the input cone of W and Y.
select -set full o:W o:Y %u %ci*
select -assert-none i:F @full %i
select -assert-count 1 o:X %ci* i:F %i
select -assert-count 1 o:Z %ci* i:F %i
# And for unique/unique0 there should be 1 $pmux compared to the 2 $mux
# cells without.
select -assert-none o:W %ci* t:$pmux %i
select -assert-none o:X %ci* t:$pmux %i
select -assert-count 1 o:Y %ci* t:$pmux %i
select -assert-count 1 o:Z %ci* t:$pmux %i
select -assert-count 2 o:W %ci* t:$mux %i
select -assert-count 2 o:X %ci* t:$mux %i
select -assert-none o:Y %ci* t:$mux %i
select -assert-none o:Z %ci* t:$mux %i

54
tests/verilog/unique_priority_if.ys Normal file
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@ -0,0 +1,54 @@
read_verilog -sv << EOF
module top (input A, B, C, D, E, F, output reg W, X, Y, Z);
always_comb begin
W = F;
priority if (C == A)
W = D;
else if (C == B)
W = E;
end
always_comb begin
X = F;
if (C == A)
X = D;
else if (C == B)
X = E;
end
always_comb begin
Y = F;
unique if (C == A)
Y = D;
else if (C == B)
Y = E;
end
always_comb begin
Z = F;
unique0 if (C == A)
Z = D;
else if (C == B)
Z = E;
end
endmodule
EOF
prep
# For the ones which use priority/unique, the F signal shouldn't be included in
# the input cone of W and Y.
select -set full o:W o:Y %u %ci*
select -assert-none i:F @full %i
select -assert-count 1 o:X %ci* i:F %i
select -assert-count 1 o:Z %ci* i:F %i
# And for unique/unique0 there should be 1 $pmux compared to the 2 $mux
# cells without.
select -assert-none o:W %ci* t:$pmux %i
select -assert-none o:X %ci* t:$pmux %i
select -assert-count 1 o:Y %ci* t:$pmux %i
select -assert-count 1 o:Z %ci* t:$pmux %i
select -assert-count 2 o:W %ci* t:$mux %i
select -assert-count 2 o:X %ci* t:$mux %i
select -assert-none o:Y %ci* t:$mux %i
select -assert-none o:Z %ci* t:$mux %i