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dfflibmap: test dffsr with either priority liberty file

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This commit is contained in:
Emil J. Tywoniak 2026-01-28 18:11:55 +01:00
parent 015b164671
commit 18753c4c9e
4 changed files with 76 additions and 7 deletions
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40
tests/techmap/dfflibmap_formal.ys
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@ -21,10 +21,46 @@ EOT
proc
opt
read_liberty dfflibmap_dffsr.lib
read_liberty dfflibmap_dffsr_s.lib
copy top top_unmapped
dfflibmap -liberty dfflibmap_dffsr.lib top
dfflibmap -liberty dfflibmap_dffsr_s.lib top
async2sync
flatten
opt_clean -purge
equiv_make top top_unmapped equiv
equiv_induct equiv
equiv_status -assert equiv
##################################################################
design -reset
read_verilog -sv -icells <<EOT
module top(input C, D, E, S, R, output [11:0] Q);
$_DFF_P_ ff0 (.C(C), .D(D), .Q(Q[0]));
$_DFF_PP0_ ff1 (.C(C), .D(D), .R(R), .Q(Q[1]));
$_DFF_PP1_ ff2 (.C(C), .D(D), .R(R), .Q(Q[2]));
$_DFFSR_PPP_ ff3 (.C(C), .D(D), .R(R), .S(S), .Q(Q[3]));
$_DFFSR_NNN_ ff4 (.C(C), .D(D), .R(~R), .S(~S), .Q(Q[4]));
$_DFFE_PP_ ff5 (.C(C), .D(D), .E(E), .Q(Q[5]));
assign Q[11:6] = ~Q[5:0];
endmodule
EOT
proc
opt
read_liberty dfflibmap_dffsr_r.lib
copy top top_unmapped
dfflibmap -liberty dfflibmap_dffsr_r.lib top
async2sync
flatten