yosys/tests/arch/xilinx/abc9_dff.ys

logger -nowarn "Yosys has only limited support for tri-state logic at the moment\. .*"

read_verilog <<EOT
module top(input C, D, output [7:0] Q);
FDRE   /*#(.INIT(0))*/ fd1(.C(C), .CE(1'b1), .D(D), .R(1'b1), .Q(Q[0]));
FDSE   #(.INIT(0)) fd2(.C(C), .CE(1'b1), .D(D), .S(1'b1), .Q(Q[1]));
FDCE   #(.INIT(0)) fd3(.C(C), .CE(1'b1), .D(D), .CLR(1'b1), .Q(Q[2]));
FDPE   #(.INIT(0)) fd4(.C(C), .CE(1'b1), .D(D), .PRE(1'b1), .Q(Q[3]));
FDRE_1 #(.INIT(0)) fd5(.C(C), .CE(1'b1), .D(D), .R(1'b1), .Q(Q[4]));
FDSE_1 #(.INIT(0)) fd6(.C(C), .CE(1'b1), .D(D), .S(1'b1), .Q(Q[5]));
FDCE_1 #(.INIT(0)) fd7(.C(C), .CE(1'b1), .D(D), .CLR(1'b1), .Q(Q[6]));
FDPE_1 #(.INIT(0)) fd8(.C(C), .CE(1'b1), .D(D), .PRE(1'b1), .Q(Q[7]));
endmodule
EOT
equiv_opt -assert -multiclock -map +/xilinx/cells_sim.v synth_xilinx -abc9 -dff -noiopad -noclkbuf
design -load postopt
select -assert-count 6 c:fd2 c:fd3 c:fd4 c:fd6 c:fd7 c:fd8


design -reset
read_verilog <<EOT
module top(input C, D, output [7:0] Q);
FDRE   #(.INIT(0)) fd1(.C(C), .CE(1'b0), .D(D), .R(1'b0), .Q(Q[0]));
FDSE   #(.INIT(0)) fd2(.C(C), .CE(1'b0), .D(D), .S(1'b0), .Q(Q[1]));
FDCE   #(.INIT(0)) fd3(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[2]));
FDPE   #(.INIT(0)) fd4(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[3]));
FDRE_1 /*#(.INIT(0))*/ fd5(.C(C), .CE(1'b0), .D(D), .R(1'b0), .Q(Q[4]));
FDSE_1 #(.INIT(0)) fd6(.C(C), .CE(1'b0), .D(D), .S(1'b0), .Q(Q[5]));
FDCE_1 #(.INIT(0)) fd7(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[6]));
FDPE_1 #(.INIT(0)) fd8(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[7]));
endmodule
EOT
equiv_opt -assert -multiclock -map +/xilinx/cells_sim.v synth_xilinx -abc9 -dff -noiopad -noclkbuf
design -load postopt
select -assert-count 4 c:fd3 c:fd4 c:fd7 c:fd8


design -reset
read_verilog <<EOT
module top(input C, D, output [7:0] Q);
FDRE   #(.INIT(1)) fd1(.C(C), .CE(1'b0), .D(D), .R(1'b0), .Q(Q[0]));
FDSE   /*#(.INIT(1))*/ fd2(.C(C), .CE(1'b0), .D(D), .S(1'b0), .Q(Q[1]));
FDCE   #(.INIT(1)) fd3(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[2]));
FDPE   #(.INIT(1)) fd4(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[3]));
FDRE_1 #(.INIT(1)) fd5(.C(C), .CE(1'b0), .D(D), .R(1'b0), .Q(Q[4]));
FDSE_1 #(.INIT(1)) fd6(.C(C), .CE(1'b0), .D(D), .S(1'b0), .Q(Q[5]));
FDCE_1 #(.INIT(1)) fd7(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[6]));
FDPE_1 #(.INIT(1)) fd8(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[7]));
endmodule
EOT
logger -expect warning "Module '\$paramod\\FDRE\\INIT=1' contains a \$_DFF_P_ cell .*" 1
logger -expect warning "Module '\$paramod\\FDRE_1\\INIT=1' contains a \$_DFF_N_ cell .*" 1
logger -expect warning "Module 'FDSE' contains a \$_DFF_P_ cell .*" 1
logger -expect warning "Module '\$paramod\\FDSE_1\\INIT=1' contains a \$_DFF_N_ cell .*" 1
equiv_opt -assert -multiclock -map +/xilinx/cells_sim.v synth_xilinx -abc9 -dff -noiopad -noclkbuf
design -load postopt
#select -assert-count 4 c:fd3 c:fd4 c:fd7 c:fd8

logger -expect-no-warnings