Introspection: Add test for get_cells

Signed-off-by: Tomasz Michalak <tmichalak@antmicro.com>
diff --git a/design_introspection-plugin/tests/Makefile b/design_introspection-plugin/tests/Makefile
index 6eed865..f89ce42 100644
--- a/design_introspection-plugin/tests/Makefile
+++ b/design_introspection-plugin/tests/Makefile
@@ -1,8 +1,9 @@
-TESTS = get_nets get_ports
+TESTS = get_nets get_ports get_cells
 .PHONY: $(TESTS)
 
 get_nets_verify = $(call compare,get_nets,txt)
 get_ports_verify = $(call compare,get_ports,txt)
+get_cells_verify = $(call compare,get_cells,txt)
 
 all: $(TESTS)
 compare = diff $(1)/$(1).golden.$(2) $(1)/$(1).$(2)
diff --git a/design_introspection-plugin/tests/get_cells/get_cells.golden.txt b/design_introspection-plugin/tests/get_cells/get_cells.golden.txt
new file mode 100644
index 0000000..d33818d
--- /dev/null
+++ b/design_introspection-plugin/tests/get_cells/get_cells.golden.txt
@@ -0,0 +1,15 @@
+
+*inter* cells quiet
+bottom_intermediate_inst.OBUF_8
+
+*inter* cells
+bottom_intermediate_inst.OBUF_8
+
+*inter* cells with invalid filter expression
+bottom_intermediate_inst.OBUF_8
+
+Filtered cells
+OBUFTDS_2
+
+All cells
+{$abc$2135$lut$not$aiger2134$1} {$auto$alumacc.cc:485:replace_alu$1469.slice[0].carry4_1st_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[0].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[1].carry4_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[1].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[2].carry4_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[2].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[3].carry4_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[3].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[4].carry4_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[4].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[5].carry4_full} {$auto$alumacc.cc:485:replace_alu$1469.slice[5].plug} {$auto$alumacc.cc:485:replace_alu$1469.slice[6].carry4_part} {$auto$simplemap.cc:420:simplemap_dff$1476} {$auto$simplemap.cc:420:simplemap_dff$1477} {$auto$simplemap.cc:420:simplemap_dff$1478} {$auto$simplemap.cc:420:simplemap_dff$1479} {$auto$simplemap.cc:420:simplemap_dff$1480} {$auto$simplemap.cc:420:simplemap_dff$1481} {$auto$simplemap.cc:420:simplemap_dff$1482} {$auto$simplemap.cc:420:simplemap_dff$1483} {$auto$simplemap.cc:420:simplemap_dff$1484} {$auto$simplemap.cc:420:simplemap_dff$1485} {$auto$simplemap.cc:420:simplemap_dff$1486} {$auto$simplemap.cc:420:simplemap_dff$1487} {$auto$simplemap.cc:420:simplemap_dff$1488} {$auto$simplemap.cc:420:simplemap_dff$1489} {$auto$simplemap.cc:420:simplemap_dff$1490} {$auto$simplemap.cc:420:simplemap_dff$1491} {$auto$simplemap.cc:420:simplemap_dff$1492} {$auto$simplemap.cc:420:simplemap_dff$1493} {$auto$simplemap.cc:420:simplemap_dff$1494} {$auto$simplemap.cc:420:simplemap_dff$1495} {$auto$simplemap.cc:420:simplemap_dff$1496} {$auto$simplemap.cc:420:simplemap_dff$1497} {$auto$simplemap.cc:420:simplemap_dff$1498} {$auto$simplemap.cc:420:simplemap_dff$1499} {$auto$simplemap.cc:420:simplemap_dff$1500} {$auto$simplemap.cc:420:simplemap_dff$1501} {$iopadmap$top.clk} OBUFTDS_2 OBUF_6 OBUF_7 OBUF_OUT bottom_inst.OBUF_10 bottom_inst.OBUF_11 bottom_inst.OBUF_9 bottom_intermediate_inst.OBUF_8
diff --git a/design_introspection-plugin/tests/get_cells/get_cells.tcl b/design_introspection-plugin/tests/get_cells/get_cells.tcl
new file mode 100644
index 0000000..861e6a9
--- /dev/null
+++ b/design_introspection-plugin/tests/get_cells/get_cells.tcl
@@ -0,0 +1,33 @@
+yosys -import
+plugin -i design_introspection
+#Import the commands from the plugins to the tcl interpreter
+yosys -import
+
+read_verilog get_cells.v
+# Some of symbiflow expects eblifs with only one module.
+synth_xilinx -vpr -flatten -abc9 -nosrl -noclkbuf -nodsp
+
+
+set fp [open "get_cells.txt" "w"]
+
+puts "\n*inter* cells quiet"
+puts $fp "\n*inter* cells quiet"
+puts $fp [get_cells -quiet *inter*]
+
+puts "\n*inter* cells"
+puts $fp "\n*inter* cells"
+puts $fp [get_cells *inter*]
+
+puts "\n*inter* cells with invalid filter expression"
+puts $fp "\n*inter* cells with invalid filter expression"
+puts $fp [get_cells -filter {mr_ff != true} *inter* ]
+
+puts "\nFiltered cells"
+puts $fp "\nFiltered cells"
+puts $fp [get_cells -filter {mr_ff == true || async_reg == true && dont_touch == true} ]
+
+puts "\nAll cells"
+puts $fp "\nAll cells"
+puts $fp [get_cells]
+
+close $fp
diff --git a/design_introspection-plugin/tests/get_cells/get_cells.v b/design_introspection-plugin/tests/get_cells/get_cells.v
new file mode 100644
index 0000000..e2af7fc
--- /dev/null
+++ b/design_introspection-plugin/tests/get_cells/get_cells.v
@@ -0,0 +1,77 @@
+module top (
+	(* async_reg = "true", mr_ff = "true", dont_touch = "true" *) input  clk,
+	output [3:0] led,
+	inout out_a,
+	output [1:0] out_b,
+	output signal_p,
+	output signal_n
+);
+
+	wire LD6, LD7, LD8, LD9;
+	wire inter_wire, inter_wire_2;
+	localparam BITS = 1;
+	localparam LOG2DELAY = 25;
+
+	reg [BITS+LOG2DELAY-1:0] counter = 0;
+
+	always @(posedge clk) begin
+		counter <= counter + 1;
+	end
+	assign led[1] = inter_wire;
+	assign inter_wire = inter_wire_2;
+	assign {LD9, LD8, LD7, LD6} = counter >> LOG2DELAY;
+	(* async_reg = "true", mr_ff = "true", dont_touch = "true" *)
+	OBUFTDS OBUFTDS_2(
+		.I(LD6),
+		.O(signal_p),
+		.OB(signal_n),
+		.T(1'b1)
+	);
+	(* async_reg = "false", mr_ff = "false", dont_touch = "true" *)
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_6(.I(LD6), .O(led[0]));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_7(.I(LD7), .O(inter_wire_2));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_OUT(.I(LD7), .O(out_a));
+	bottom bottom_inst(.I(LD8), .O(led[2]), .OB(out_b));
+	bottom_intermediate bottom_intermediate_inst(.I(LD9), .O(led[3]));
+endmodule
+
+module bottom_intermediate (
+	input I,
+	output O
+);
+	wire bottom_intermediate_wire;
+	assign O = bottom_intermediate_wire;
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_8(.I(I), .O(bottom_intermediate_wire));
+endmodule
+
+module bottom (
+	input I,
+	output [1:0] OB,
+	output O
+);
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_9(.I(I), .O(O));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_10(.I(I), .O(OB[0]));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_11(.I(I), .O(OB[1]));
+endmodule
+