diff options
Diffstat (limited to 'tests/arch/xilinx/xilinx_dffopt.ys')
-rw-r--r-- | tests/arch/xilinx/xilinx_dffopt.ys | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tests/arch/xilinx/xilinx_dffopt.ys b/tests/arch/xilinx/xilinx_dffopt.ys index 2c729832e..c09699411 100644 --- a/tests/arch/xilinx/xilinx_dffopt.ys +++ b/tests/arch/xilinx/xilinx_dffopt.ys @@ -223,3 +223,49 @@ select -assert-count 1 t:LUT2 select -assert-none t:FDRSE t:LUT4 t:LUT2 %% t:* %D design -reset + + +read_verilog << EOT + +// FDSE_1, mergeable CE and S, but CE only not worth it. + +module t0 (...); +input wire clk; +input wire [7:0] i; +output wire [7:0] o; + +wire [7:0] tmp ; + +LUT2 #(.INIT(4'h6)) lut0 (.I0(i[0]), .I1(i[1]), .O(tmp[0])); +LUT2 #(.INIT(4'h6)) lut1 (.I0(i[1]), .I1(i[2]), .O(tmp[1])); + +FDSE_1 ff (.D(tmp[0]), .CE(i[7]), .S(tmp[1]), .Q(o[0])); + +endmodule + +EOT + +read_verilog -lib +/xilinx/cells_sim.v +design -save t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt +design -load postopt +clean + +cd t0 +select -assert-count 1 t:FDSE_1 +select -assert-count 1 t:LUT5 +select -assert-none t:FDSE_1 t:LUT5 %% t:* %D + +design -load t0 + +equiv_opt -blacklist xilinx_dffopt_blacklist.txt -assert -map +/xilinx/cells_sim.v xilinx_dffopt -lut4 +design -load postopt +clean + +cd t0 +select -assert-count 1 t:FDSE_1 +select -assert-count 2 t:LUT2 +select -assert-none t:FDSE_1 t:LUT2 %% t:* %D + +design -reset |