From c2ec7ca7031e2e9c655723fcdb3ce3cb83cc74b1 Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 18 Oct 2019 11:06:12 +0200
Subject: Moved all tests in arch sub directory

---
 tests/xilinx/.gitignore          |  5 ---
 tests/xilinx/add_sub.v           | 13 ------
 tests/xilinx/add_sub.ys          | 11 -----
 tests/xilinx/adffs.v             | 47 --------------------
 tests/xilinx/adffs.ys            | 51 ---------------------
 tests/xilinx/counter.v           | 17 -------
 tests/xilinx/counter.ys          | 14 ------
 tests/xilinx/dffs.v              | 15 -------
 tests/xilinx/dffs.ys             | 25 -----------
 tests/xilinx/dsp_simd.ys         | 25 -----------
 tests/xilinx/fsm.v               | 55 -----------------------
 tests/xilinx/fsm.ys              | 14 ------
 tests/xilinx/latches.v           | 24 ----------
 tests/xilinx/latches.ys          | 35 ---------------
 tests/xilinx/logic.v             | 18 --------
 tests/xilinx/logic.ys            | 11 -----
 tests/xilinx/macc.sh             |  3 --
 tests/xilinx/macc.v              | 84 -----------------------------------
 tests/xilinx/macc.ys             | 31 -------------
 tests/xilinx/macc_tb.v           | 96 ----------------------------------------
 tests/xilinx/memory.v            | 21 ---------
 tests/xilinx/memory.ys           | 17 -------
 tests/xilinx/mul.v               | 11 -----
 tests/xilinx/mul.ys              |  9 ----
 tests/xilinx/mul_unsigned.v      | 30 -------------
 tests/xilinx/mul_unsigned.ys     | 11 -----
 tests/xilinx/mux.v               | 65 ---------------------------
 tests/xilinx/mux.ys              | 45 -------------------
 tests/xilinx/pmgen_xilinx_srl.ys | 57 ------------------------
 tests/xilinx/run-test.sh         | 20 ---------
 tests/xilinx/shifter.v           | 16 -------
 tests/xilinx/shifter.ys          | 11 -----
 tests/xilinx/tribuf.v            |  8 ----
 tests/xilinx/tribuf.ys           | 12 -----
 tests/xilinx/xilinx_srl.v        | 40 -----------------
 tests/xilinx/xilinx_srl.ys       | 67 ----------------------------
 36 files changed, 1034 deletions(-)
 delete mode 100644 tests/xilinx/.gitignore
 delete mode 100644 tests/xilinx/add_sub.v
 delete mode 100644 tests/xilinx/add_sub.ys
 delete mode 100644 tests/xilinx/adffs.v
 delete mode 100644 tests/xilinx/adffs.ys
 delete mode 100644 tests/xilinx/counter.v
 delete mode 100644 tests/xilinx/counter.ys
 delete mode 100644 tests/xilinx/dffs.v
 delete mode 100644 tests/xilinx/dffs.ys
 delete mode 100644 tests/xilinx/dsp_simd.ys
 delete mode 100644 tests/xilinx/fsm.v
 delete mode 100644 tests/xilinx/fsm.ys
 delete mode 100644 tests/xilinx/latches.v
 delete mode 100644 tests/xilinx/latches.ys
 delete mode 100644 tests/xilinx/logic.v
 delete mode 100644 tests/xilinx/logic.ys
 delete mode 100644 tests/xilinx/macc.sh
 delete mode 100644 tests/xilinx/macc.v
 delete mode 100644 tests/xilinx/macc.ys
 delete mode 100644 tests/xilinx/macc_tb.v
 delete mode 100644 tests/xilinx/memory.v
 delete mode 100644 tests/xilinx/memory.ys
 delete mode 100644 tests/xilinx/mul.v
 delete mode 100644 tests/xilinx/mul.ys
 delete mode 100644 tests/xilinx/mul_unsigned.v
 delete mode 100644 tests/xilinx/mul_unsigned.ys
 delete mode 100644 tests/xilinx/mux.v
 delete mode 100644 tests/xilinx/mux.ys
 delete mode 100644 tests/xilinx/pmgen_xilinx_srl.ys
 delete mode 100755 tests/xilinx/run-test.sh
 delete mode 100644 tests/xilinx/shifter.v
 delete mode 100644 tests/xilinx/shifter.ys
 delete mode 100644 tests/xilinx/tribuf.v
 delete mode 100644 tests/xilinx/tribuf.ys
 delete mode 100644 tests/xilinx/xilinx_srl.v
 delete mode 100644 tests/xilinx/xilinx_srl.ys

(limited to 'tests/xilinx')

diff --git a/tests/xilinx/.gitignore b/tests/xilinx/.gitignore
deleted file mode 100644
index c99b79371..000000000
--- a/tests/xilinx/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-/*.log
-/*.out
-/run-test.mk
-/*_uut.v
-/test_macc
diff --git a/tests/xilinx/add_sub.v b/tests/xilinx/add_sub.v
deleted file mode 100644
index 177c32e30..000000000
--- a/tests/xilinx/add_sub.v
+++ /dev/null
@@ -1,13 +0,0 @@
-module top
-(
- input [3:0] x,
- input [3:0] y,
-
- output [3:0] A,
- output [3:0] B
- );
-
-assign A =  x + y;
-assign B =  x - y;
-
-endmodule
diff --git a/tests/xilinx/add_sub.ys b/tests/xilinx/add_sub.ys
deleted file mode 100644
index f06e7fa01..000000000
--- a/tests/xilinx/add_sub.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog add_sub.v
-hierarchy -top top
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-select -assert-count 14 t:LUT2
-select -assert-count 6 t:MUXCY
-select -assert-count 8 t:XORCY
-select -assert-none t:LUT2 t:MUXCY t:XORCY %% t:* %D
-
diff --git a/tests/xilinx/adffs.v b/tests/xilinx/adffs.v
deleted file mode 100644
index 223b52d21..000000000
--- a/tests/xilinx/adffs.v
+++ /dev/null
@@ -1,47 +0,0 @@
-module adff
-    ( input d, clk, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( posedge clk, posedge clr )
-		if ( clr )
-			q <= 1'b0;
-		else
-            q <= d;
-endmodule
-
-module adffn
-    ( input d, clk, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( posedge clk, negedge clr )
-		if ( !clr )
-			q <= 1'b0;
-		else
-            q <= d;
-endmodule
-
-module dffs
-    ( input d, clk, pre, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( posedge clk )
-		if ( pre )
-			q <= 1'b1;
-		else
-            q <= d;
-endmodule
-
-module ndffnr
-    ( input d, clk, pre, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( negedge clk )
-		if ( !clr )
-			q <= 1'b0;
-		else
-            q <= d;
-endmodule
diff --git a/tests/xilinx/adffs.ys b/tests/xilinx/adffs.ys
deleted file mode 100644
index 1923b9802..000000000
--- a/tests/xilinx/adffs.ys
+++ /dev/null
@@ -1,51 +0,0 @@
-read_verilog adffs.v
-design -save read
-
-hierarchy -top adff
-proc
-equiv_opt -async2sync  -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd adff # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDCE
-
-select -assert-none t:BUFG t:FDCE %% t:* %D
-
-
-design -load read
-hierarchy -top adffn
-proc
-equiv_opt -async2sync  -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd adffn # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDCE
-select -assert-count 1 t:LUT1
-
-select -assert-none t:BUFG t:FDCE t:LUT1 %% t:* %D
-
-
-design -load read
-hierarchy -top dffs
-proc
-equiv_opt -async2sync  -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd dffs # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDRE
-select -assert-count 1 t:LUT2
-
-select -assert-none t:BUFG t:FDRE t:LUT2 %% t:* %D
-
-
-design -load read
-hierarchy -top ndffnr
-proc
-equiv_opt -async2sync  -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd ndffnr # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDRE_1
-select -assert-count 1 t:LUT2
-
-select -assert-none t:BUFG t:FDRE_1 t:LUT2 %% t:* %D
diff --git a/tests/xilinx/counter.v b/tests/xilinx/counter.v
deleted file mode 100644
index 52852f8ac..000000000
--- a/tests/xilinx/counter.v
+++ /dev/null
@@ -1,17 +0,0 @@
-module top    (
-out,
-clk,
-reset
-);
-    output [7:0] out;
-    input clk, reset;
-    reg [7:0] out;
-
-    always @(posedge clk, posedge reset)
-		if (reset) begin
-			out <= 8'b0 ;
-		end else
-			out <= out + 1;
-
-
-endmodule
diff --git a/tests/xilinx/counter.ys b/tests/xilinx/counter.ys
deleted file mode 100644
index 459541656..000000000
--- a/tests/xilinx/counter.ys
+++ /dev/null
@@ -1,14 +0,0 @@
-read_verilog counter.v
-hierarchy -top top
-proc
-flatten
-equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-
-select -assert-count 1 t:BUFG
-select -assert-count 8 t:FDCE
-select -assert-count 1 t:LUT1
-select -assert-count 7 t:MUXCY
-select -assert-count 8 t:XORCY
-select -assert-none t:BUFG t:FDCE t:LUT1 t:MUXCY t:XORCY %% t:* %D
diff --git a/tests/xilinx/dffs.v b/tests/xilinx/dffs.v
deleted file mode 100644
index 3418787c9..000000000
--- a/tests/xilinx/dffs.v
+++ /dev/null
@@ -1,15 +0,0 @@
-module dff
-    ( input d, clk, output reg q );
-	always @( posedge clk )
-            q <= d;
-endmodule
-
-module dffe
-    ( input d, clk, en, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( posedge clk )
-		if ( en )
-			q <= d;
-endmodule
diff --git a/tests/xilinx/dffs.ys b/tests/xilinx/dffs.ys
deleted file mode 100644
index f1716dabb..000000000
--- a/tests/xilinx/dffs.ys
+++ /dev/null
@@ -1,25 +0,0 @@
-read_verilog dffs.v
-design -save read
-
-hierarchy -top dff
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd dff # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDRE
-
-select -assert-none t:BUFG t:FDRE %% t:* %D
-
-
-design -load read
-hierarchy -top dffe
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd dffe # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDRE
-
-select -assert-none t:BUFG t:FDRE %% t:* %D
-
diff --git a/tests/xilinx/dsp_simd.ys b/tests/xilinx/dsp_simd.ys
deleted file mode 100644
index 956952327..000000000
--- a/tests/xilinx/dsp_simd.ys
+++ /dev/null
@@ -1,25 +0,0 @@
-read_verilog <<EOT
-module simd(input [12*4-1:0] a, input [12*4-1:0] b, (* use_dsp="simd" *) output [7*12-1:0] o12, (* use_dsp="simd" *) output [2*24-1:0] o24);
-generate
-    genvar i;
-    // 4 x 12-bit adder
-    for (i = 0; i < 4; i++)
-        assign o12[i*12+:12] = a[i*12+:12] + b[i*12+:12];
-    // 2 x 24-bit subtract
-    for (i = 0; i < 2; i++)
-        assign o24[i*24+:24] = a[i*24+:24] - b[i*24+:24];
-endgenerate
-reg [3*12-1:0] ro;
-always @* begin
-    ro[0*12+:12] = a[0*10+:10] + b[0*10+:10];
-    ro[1*12+:12] = a[1*10+:10] + b[1*10+:10];
-    ro[2*12+:12] = a[2*8+:8] + b[2*8+:8];
-end
-assign o12[4*12+:3*12] = ro;
-endmodule
-EOT
-
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx
-design -load postopt
-select -assert-count 3 t:DSP48E1
diff --git a/tests/xilinx/fsm.v b/tests/xilinx/fsm.v
deleted file mode 100644
index 368fbaace..000000000
--- a/tests/xilinx/fsm.v
+++ /dev/null
@@ -1,55 +0,0 @@
- module fsm (
- clock,
- reset,
- req_0,
- req_1,
- gnt_0,
- gnt_1
- );
- input   clock,reset,req_0,req_1;
- output  gnt_0,gnt_1;
- wire    clock,reset,req_0,req_1;
- reg     gnt_0,gnt_1;
-
- parameter SIZE = 3           ;
- parameter IDLE  = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
-
- reg [SIZE-1:0] state;
- reg [SIZE-1:0] next_state;
-
- always @ (posedge clock)
- begin : FSM
- if (reset == 1'b1) begin
-   state <=  #1  IDLE;
-   gnt_0 <= 0;
-   gnt_1 <= 0;
- end else
-  case(state)
-    IDLE : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT0;
-                 gnt_0 <= 1;
-               end else if (req_1 == 1'b1) begin
-                 gnt_1 <= 1;
-                 state <=  #1  GNT0;
-               end else begin
-                 state <=  #1  IDLE;
-               end
-    GNT0 : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT0;
-               end else begin
-                 gnt_0 <= 0;
-                 state <=  #1  IDLE;
-               end
-    GNT1 : if (req_1 == 1'b1) begin
-                 state <=  #1  GNT2;
-				 gnt_1 <= req_0;
-               end
-    GNT2 : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT1;
-				 gnt_1 <= req_1;
-               end
-    default : state <=  #1  IDLE;
- endcase
- end
-
-endmodule
diff --git a/tests/xilinx/fsm.ys b/tests/xilinx/fsm.ys
deleted file mode 100644
index a9e94c2c0..000000000
--- a/tests/xilinx/fsm.ys
+++ /dev/null
@@ -1,14 +0,0 @@
-read_verilog fsm.v
-hierarchy -top fsm
-proc
-flatten
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd fsm # Constrain all select calls below inside the top module
-
-select -assert-count 1 t:BUFG
-select -assert-count 5 t:FDRE
-select -assert-count 1 t:LUT3
-select -assert-count 2 t:LUT4
-select -assert-count 4 t:LUT6
-select -assert-none t:BUFG t:FDRE t:LUT3 t:LUT4 t:LUT6 %% t:* %D
diff --git a/tests/xilinx/latches.v b/tests/xilinx/latches.v
deleted file mode 100644
index adb5d5319..000000000
--- a/tests/xilinx/latches.v
+++ /dev/null
@@ -1,24 +0,0 @@
-module latchp
-    ( input d, clk, en, output reg q );
-	always @*
-		if ( en )
-			q <= d;
-endmodule
-
-module latchn
-    ( input d, clk, en, output reg q );
-	always @*
-		if ( !en )
-			q <= d;
-endmodule
-
-module latchsr
-    ( input d, clk, en, clr, pre, output reg q );
-	always @*
-		if ( clr )
-			q <= 1'b0;
-		else if ( pre )
-			q <= 1'b1;
-		else if ( en )
-			q <= d;
-endmodule
diff --git a/tests/xilinx/latches.ys b/tests/xilinx/latches.ys
deleted file mode 100644
index 3eb550a42..000000000
--- a/tests/xilinx/latches.ys
+++ /dev/null
@@ -1,35 +0,0 @@
-read_verilog latches.v
-design -save read
-
-hierarchy -top latchp
-proc
-equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd latchp # Constrain all select calls below inside the top module
-select -assert-count 1 t:LDCE
-
-select -assert-none t:LDCE %% t:* %D
-
-
-design -load read
-hierarchy -top latchn
-proc
-equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd latchn # Constrain all select calls below inside the top module
-select -assert-count 1 t:LDCE
-select -assert-count 1 t:LUT1
-
-select -assert-none t:LDCE t:LUT1 %% t:* %D
-
-
-design -load read
-hierarchy -top latchsr
-proc
-equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd latchsr # Constrain all select calls below inside the top module
-select -assert-count 1 t:LDCE
-select -assert-count 2 t:LUT3
-
-select -assert-none t:LDCE t:LUT3 %% t:* %D
diff --git a/tests/xilinx/logic.v b/tests/xilinx/logic.v
deleted file mode 100644
index e5343cae0..000000000
--- a/tests/xilinx/logic.v
+++ /dev/null
@@ -1,18 +0,0 @@
-module top
-(
- input [0:7] in,
- output B1,B2,B3,B4,B5,B6,B7,B8,B9,B10
- );
-
-   assign     B1 =  in[0] & in[1];
-   assign     B2 =  in[0] | in[1];
-   assign     B3 =  in[0] ~& in[1];
-   assign     B4 =  in[0] ~| in[1];
-   assign     B5 =  in[0] ^ in[1];
-   assign     B6 =  in[0] ~^ in[1];
-   assign     B7 =  ~in[0];
-   assign     B8 =  in[0];
-   assign     B9 =  in[0:1] && in [2:3];
-   assign     B10 =  in[0:1] || in [2:3];
-
-endmodule
diff --git a/tests/xilinx/logic.ys b/tests/xilinx/logic.ys
deleted file mode 100644
index 9ae5993aa..000000000
--- a/tests/xilinx/logic.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog logic.v
-hierarchy -top top
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-
-select -assert-count 1 t:LUT1
-select -assert-count 6 t:LUT2
-select -assert-count 2 t:LUT4
-select -assert-none t:LUT1 t:LUT2 t:LUT4 %% t:* %D
diff --git a/tests/xilinx/macc.sh b/tests/xilinx/macc.sh
deleted file mode 100644
index 86e4c2bb6..000000000
--- a/tests/xilinx/macc.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-../../yosys -qp "synth_xilinx -top macc2; rename -top macc2_uut" macc.v -o macc_uut.v
-iverilog -o test_macc macc_tb.v macc_uut.v macc.v ../../techlibs/xilinx/cells_sim.v
-vvp -N ./test_macc
diff --git a/tests/xilinx/macc.v b/tests/xilinx/macc.v
deleted file mode 100644
index e36b2bab1..000000000
--- a/tests/xilinx/macc.v
+++ /dev/null
@@ -1,84 +0,0 @@
-// Signed 40-bit streaming accumulator with 16-bit inputs
-// File: HDL_Coding_Techniques/multipliers/multipliers4.v
-//
-// Source:
-// https://www.xilinx.com/support/documentation/sw_manuals/xilinx2014_2/ug901-vivado-synthesis.pdf p.90
-//
-module macc # (parameter SIZEIN = 16, SIZEOUT = 40) (
-	input clk, ce, sload,
-	input signed [SIZEIN-1:0] a, b,
-	output signed [SIZEOUT-1:0] accum_out
-);
-// Declare registers for intermediate values
-reg signed [SIZEIN-1:0] a_reg, b_reg;
-reg sload_reg;
-reg signed [2*SIZEIN-1:0] mult_reg;
-reg signed [SIZEOUT-1:0] adder_out, old_result;
-always @* /*(adder_out or sload_reg)*/ begin // Modification necessary to fix sim/synth mismatch
-	if (sload_reg)
-		old_result <= 0;
-	else
-		// 'sload' is now active (=low) and opens the accumulation loop.
-		// The accumulator takes the next multiplier output in
-		// the same cycle.
-		old_result <= adder_out;
-end
-
-always @(posedge clk)
-	if (ce)
-	begin
-		a_reg <= a;
-		b_reg <= b;
-		mult_reg <= a_reg * b_reg;
-		sload_reg <= sload;
-		// Store accumulation result into a register
-		adder_out <= old_result + mult_reg;
-	end
-
-// Output accumulation result
-assign accum_out = adder_out;
-
-endmodule
-
-// Adapted variant of above
-module macc2 # (parameter SIZEIN = 16, SIZEOUT = 40) (
-	input clk,
-	input ce,
-	input rst,
-	input signed [SIZEIN-1:0] a, b,
-	output signed [SIZEOUT-1:0] accum_out,
-	output overflow
-);
-// Declare registers for intermediate values
-reg signed [SIZEIN-1:0] a_reg, b_reg, a_reg2, b_reg2;
-reg signed [2*SIZEIN-1:0] mult_reg = 0;
-reg signed [SIZEOUT:0] adder_out = 0;
-reg overflow_reg;
-always @(posedge clk) begin
-	//if (ce)
-	begin
-		a_reg <= a;
-		b_reg <= b;
-		a_reg2 <= a_reg;
-		b_reg2 <= b_reg;
-		mult_reg <= a_reg2 * b_reg2;
-		// Store accumulation result into a register
-		adder_out <= adder_out + mult_reg;
-		overflow_reg <= overflow;
-	end
-	if (rst) begin
-		a_reg <= 0;
-		a_reg2 <= 0;
-		b_reg <= 0;
-		b_reg2 <= 0;
-		mult_reg <= 0;
-		adder_out <= 0;
-		overflow_reg <= 1'b0;
-	end
-end
-assign overflow = (adder_out >= 2**(SIZEOUT-1)) | overflow_reg;
-
-// Output accumulation result
-assign accum_out = overflow ? 2**(SIZEOUT-1)-1 : adder_out;
-
-endmodule
diff --git a/tests/xilinx/macc.ys b/tests/xilinx/macc.ys
deleted file mode 100644
index 6e884b35a..000000000
--- a/tests/xilinx/macc.ys
+++ /dev/null
@@ -1,31 +0,0 @@
-read_verilog macc.v
-design -save read
-
-hierarchy -top macc
-proc
-#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx ### TODO
-equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-sat -verify -prove-asserts -seq 10 -show-inputs -show-outputs miter
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd macc # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:FDRE
-select -assert-count 1 t:DSP48E1
-select -assert-none t:BUFG t:FDRE t:DSP48E1 %% t:* %D
-
-design -load read
-hierarchy -top macc2
-proc
-#equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx ### TODO
-equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-sat -verify -prove-asserts -seq 10 -show-inputs -show-outputs miter
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd macc2 # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:DSP48E1
-select -assert-count 1 t:FDRE
-select -assert-count 1 t:LUT2
-select -assert-count 41 t:LUT3
-select -assert-none t:BUFG t:DSP48E1 t:FDRE t:LUT2 t:LUT3 %% t:* %D
diff --git a/tests/xilinx/macc_tb.v b/tests/xilinx/macc_tb.v
deleted file mode 100644
index 64aed05c4..000000000
--- a/tests/xilinx/macc_tb.v
+++ /dev/null
@@ -1,96 +0,0 @@
-`timescale 1ns / 1ps
-
-module testbench;
-
-    parameter SIZEIN = 16, SIZEOUT = 40;
-	reg clk, ce, rst;
-   	reg signed [SIZEIN-1:0] a, b;
-	output signed [SIZEOUT-1:0] REF_accum_out, accum_out;
-	output REF_overflow, overflow;
-
-	integer errcount = 0;
-
-	reg ERROR_FLAG = 0;
-
-	task clkcycle;
-		begin
-			#5;
-			clk = ~clk;
-			#10;
-			clk = ~clk;
-			#2;
-			ERROR_FLAG = 0;
-			if (REF_accum_out !== accum_out) begin
-				$display("ERROR at %1t: REF_accum_out=%b UUT_accum_out=%b DIFF=%b", $time, REF_accum_out, accum_out, REF_accum_out ^ accum_out);
-				errcount = errcount + 1;
-				ERROR_FLAG = 1;
-			end
-			if (REF_overflow !== overflow) begin
-				$display("ERROR at %1t: REF_overflow=%b UUT_overflow=%b DIFF=%b", $time, REF_overflow, overflow, REF_overflow ^ overflow);
-				errcount = errcount + 1;
-				ERROR_FLAG = 1;
-			end
-			#3;
-		end
-	endtask
-
-	initial begin
-		//$dumpfile("test_macc.vcd");
-		//$dumpvars(0, testbench);
-
-		#2;
-		clk = 1'b0;
-        ce = 1'b0;
-        a = 0;
-        b = 0;
-
-        rst = 1'b1;
-		repeat (10) begin
-			#10;
-			clk = 1'b1;
-			#10;
-			clk = 1'b0;
-			#10;
-			clk = 1'b1;
-			#10;
-			clk = 1'b0;
-		end
-		rst = 1'b0;
-
-		repeat (10000) begin
-			clkcycle;
-            ce = 1; //$urandom & $urandom;
-			//rst = $urandom & $urandom & $urandom & $urandom & $urandom & $urandom;
-			a = $urandom & ~(1 << (SIZEIN-1));
-			b = $urandom & ~(1 << (SIZEIN-1));
-		end
-
-		if (errcount == 0) begin
-			$display("All tests passed.");
-			$finish;
-		end else begin
-			$display("Caught %1d errors.", errcount);
-			$stop;
-		end
-	end
-
-	macc2 ref (
-        .clk(clk),
-        .ce(ce),
-        .rst(rst),
-        .a(a),
-        .b(b),
-        .accum_out(REF_accum_out),
-        .overflow(REF_overflow)
-	);
-
-	macc2_uut uut (
-        .clk(clk),
-        .ce(ce),
-        .rst(rst),
-        .a(a),
-        .b(b),
-        .accum_out(accum_out),
-        .overflow(overflow)
-	);
-endmodule
diff --git a/tests/xilinx/memory.v b/tests/xilinx/memory.v
deleted file mode 100644
index cb7753f7b..000000000
--- a/tests/xilinx/memory.v
+++ /dev/null
@@ -1,21 +0,0 @@
-module top
-(
-	input [7:0] data_a,
-	input [6:1] addr_a,
-	input we_a, clk,
-	output reg [7:0] q_a
-);
-	// Declare the RAM variable
-	reg [7:0] ram[63:0];
-
-	// Port A
-	always @ (posedge clk)
-	begin
-		if (we_a)
-		begin
-			ram[addr_a] <= data_a;
-			q_a <= data_a;
-		end
-		q_a <= ram[addr_a];
-	end
-endmodule
diff --git a/tests/xilinx/memory.ys b/tests/xilinx/memory.ys
deleted file mode 100644
index 5402513a2..000000000
--- a/tests/xilinx/memory.ys
+++ /dev/null
@@ -1,17 +0,0 @@
-read_verilog memory.v
-hierarchy -top top
-proc
-memory -nomap
-equiv_opt -run :prove -map +/xilinx/cells_sim.v synth_xilinx
-memory
-opt -full
-
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-sat -verify -prove-asserts -seq 5 -set-init-zero -show-inputs -show-outputs miter
-
-design -load postopt
-cd top
-select -assert-count 1 t:BUFG
-select -assert-count 8 t:FDRE
-select -assert-count 8 t:RAM64X1D
-select -assert-none t:BUFG t:FDRE t:RAM64X1D %% t:* %D
diff --git a/tests/xilinx/mul.v b/tests/xilinx/mul.v
deleted file mode 100644
index d5b48b1d7..000000000
--- a/tests/xilinx/mul.v
+++ /dev/null
@@ -1,11 +0,0 @@
-module top
-(
- input [5:0] x,
- input [5:0] y,
-
- output [11:0] A,
- );
-
-assign A =  x * y;
-
-endmodule
diff --git a/tests/xilinx/mul.ys b/tests/xilinx/mul.ys
deleted file mode 100644
index 66a06efdc..000000000
--- a/tests/xilinx/mul.ys
+++ /dev/null
@@ -1,9 +0,0 @@
-read_verilog mul.v
-hierarchy -top top
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-
-select -assert-count 1 t:DSP48E1
-select -assert-none t:DSP48E1 %% t:* %D
diff --git a/tests/xilinx/mul_unsigned.v b/tests/xilinx/mul_unsigned.v
deleted file mode 100644
index e3713a642..000000000
--- a/tests/xilinx/mul_unsigned.v
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
-Example from: https://www.xilinx.com/support/documentation/sw_manuals/xilinx2019_1/ug901-vivado-synthesis.pdf [p. 89].
-*/
-
-// Unsigned 16x24-bit Multiplier
-// 1 latency stage on operands
-// 3 latency stage after the multiplication
-// File: multipliers2.v
-//
-module mul_unsigned (clk, A, B, RES);
-parameter WIDTHA = /*16*/ 6;
-parameter WIDTHB = /*24*/ 9;
-input clk;
-input [WIDTHA-1:0] A;
-input [WIDTHB-1:0] B;
-output [WIDTHA+WIDTHB-1:0] RES;
-reg [WIDTHA-1:0] rA;
-reg [WIDTHB-1:0] rB;
-reg [WIDTHA+WIDTHB-1:0] M [3:0];
-integer i;
-always @(posedge clk)
- begin
- rA <= A;
- rB <= B;
- M[0] <= rA * rB;
- for (i = 0; i < 3; i = i+1)
- M[i+1] <= M[i];
- end
-assign RES = M[3];
-endmodule
diff --git a/tests/xilinx/mul_unsigned.ys b/tests/xilinx/mul_unsigned.ys
deleted file mode 100644
index 62495b90c..000000000
--- a/tests/xilinx/mul_unsigned.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog mul_unsigned.v
-hierarchy -top mul_unsigned
-proc
-
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd mul_unsigned # Constrain all select calls below inside the top module
-select -assert-count 1 t:BUFG
-select -assert-count 1 t:DSP48E1
-select -assert-count 30 t:FDRE
-select -assert-none t:DSP48E1 t:FDRE t:BUFG %% t:* %D
diff --git a/tests/xilinx/mux.v b/tests/xilinx/mux.v
deleted file mode 100644
index 27bc0bf0b..000000000
--- a/tests/xilinx/mux.v
+++ /dev/null
@@ -1,65 +0,0 @@
-module mux2 (S,A,B,Y);
-    input S;
-    input A,B;
-    output reg Y;
-
-    always @(*)
-		Y = (S)? B : A;
-endmodule
-
-module mux4 ( S, D, Y );
-
-input[1:0] S;
-input[3:0] D;
-output Y;
-
-reg Y;
-wire[1:0] S;
-wire[3:0] D;
-
-always @*
-begin
-    case( S )
-       0 : Y = D[0];
-       1 : Y = D[1];
-       2 : Y = D[2];
-       3 : Y = D[3];
-   endcase
-end
-
-endmodule
-
-module mux8 ( S, D, Y );
-
-input[2:0] S;
-input[7:0] D;
-output Y;
-
-reg Y;
-wire[2:0] S;
-wire[7:0] D;
-
-always @*
-begin
-   case( S )
-       0 : Y = D[0];
-       1 : Y = D[1];
-       2 : Y = D[2];
-       3 : Y = D[3];
-       4 : Y = D[4];
-       5 : Y = D[5];
-       6 : Y = D[6];
-       7 : Y = D[7];
-   endcase
-end
-
-endmodule
-
-module mux16 (D, S, Y);
- 	input  [15:0] D;
- 	input  [3:0] S;
- 	output Y;
-
-assign Y = D[S];
-
-endmodule
diff --git a/tests/xilinx/mux.ys b/tests/xilinx/mux.ys
deleted file mode 100644
index 420dece4e..000000000
--- a/tests/xilinx/mux.ys
+++ /dev/null
@@ -1,45 +0,0 @@
-read_verilog mux.v
-design -save read
-
-hierarchy -top mux2
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd mux2 # Constrain all select calls below inside the top module
-select -assert-count 1 t:LUT3
-
-select -assert-none t:LUT3 %% t:* %D
-
-
-design -load read
-hierarchy -top mux4
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd mux4 # Constrain all select calls below inside the top module
-select -assert-count 1 t:LUT6
-
-select -assert-none t:LUT6 %% t:* %D
-
-
-design -load read
-hierarchy -top mux8
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd mux8 # Constrain all select calls below inside the top module
-select -assert-count 1 t:LUT3
-select -assert-count 2 t:LUT6
-
-select -assert-none t:LUT3 t:LUT6 %% t:* %D
-
-
-design -load read
-hierarchy -top mux16
-proc
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd mux16 # Constrain all select calls below inside the top module
-select -assert-count 5 t:LUT6
-
-select -assert-none t:LUT6 %% t:* %D
diff --git a/tests/xilinx/pmgen_xilinx_srl.ys b/tests/xilinx/pmgen_xilinx_srl.ys
deleted file mode 100644
index ea2f20487..000000000
--- a/tests/xilinx/pmgen_xilinx_srl.ys
+++ /dev/null
@@ -1,57 +0,0 @@
-read_verilog -icells <<EOT
-module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, output SO);
-  parameter DEPTH = 1;
-  parameter [DEPTH-1:0] INIT = 0;
-  parameter CLKPOL = 1;
-  parameter ENPOL = 2;
-
-  wire pos_clk = C == CLKPOL;
-  reg pos_en;
-  always @(E)
-    if (ENPOL == 2) pos_en = 1'b1;
-    else pos_en = (E == ENPOL[0]);
-
-  reg [DEPTH-1:0] r;
-  always @(posedge pos_clk)
-    if (pos_en)
-      r <= {r[DEPTH-2:0], D};
-
-  assign Q = r[L];
-  assign SO = r[DEPTH-1];
-endmodule
-EOT
-read_verilog +/xilinx/cells_sim.v
-proc
-design -save model
-
-test_pmgen -generate xilinx_srl.fixed
-hierarchy -top pmtest_xilinx_srl_pm_fixed
-flatten; opt_clean
-
-design -save gold
-xilinx_srl -fixed
-techmap -autoproc -map %model
-design -stash gate
-
-design -copy-from gold -as gold pmtest_xilinx_srl_pm_fixed
-design -copy-from gate -as gate pmtest_xilinx_srl_pm_fixed
-dff2dffe -unmap # sat does not support flops-with-enable yet
-miter -equiv -flatten -make_assert gold gate miter
-sat -set-init-zero -seq 5 -verify -prove-asserts miter
-
-design -load model
-
-test_pmgen -generate xilinx_srl.variable
-hierarchy -top pmtest_xilinx_srl_pm_variable
-flatten; opt_clean
-
-design -save gold
-xilinx_srl -variable
-techmap -autoproc -map %model
-design -stash gate
-
-design -copy-from gold -as gold pmtest_xilinx_srl_pm_variable
-design -copy-from gate -as gate pmtest_xilinx_srl_pm_variable
-dff2dffe -unmap # sat does not support flops-with-enable yet
-miter -equiv -flatten -make_assert gold gate miter
-sat -set-init-zero -seq 5 -verify -prove-asserts miter
diff --git a/tests/xilinx/run-test.sh b/tests/xilinx/run-test.sh
deleted file mode 100755
index 46716f9a0..000000000
--- a/tests/xilinx/run-test.sh
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env bash
-set -e
-{
-echo "all::"
-for x in *.ys; do
-	echo "all:: run-$x"
-	echo "run-$x:"
-	echo "	@echo 'Running $x..'"
-	echo "	@../../yosys -ql ${x%.ys}.log -w 'Yosys has only limited support for tri-state logic at the moment.' $x"
-done
-for s in *.sh; do
-	if [ "$s" != "run-test.sh" ]; then
-		echo "all:: run-$s"
-		echo "run-$s:"
-		echo "	@echo 'Running $s..'"
-		echo "	@bash $s"
-	fi
-done
-} > run-test.mk
-exec ${MAKE:-make} -f run-test.mk
diff --git a/tests/xilinx/shifter.v b/tests/xilinx/shifter.v
deleted file mode 100644
index 04ae49d83..000000000
--- a/tests/xilinx/shifter.v
+++ /dev/null
@@ -1,16 +0,0 @@
-module top    (
-out,
-clk,
-in
-);
-    output [7:0] out;
-    input signed clk, in;
-    reg signed [7:0] out = 0;
-
-    always @(posedge clk)
-	begin
-		out    <= out >> 1;
-		out[7] <= in;
-	end
-
-endmodule
diff --git a/tests/xilinx/shifter.ys b/tests/xilinx/shifter.ys
deleted file mode 100644
index 84e16f41e..000000000
--- a/tests/xilinx/shifter.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog shifter.v
-hierarchy -top top
-proc
-flatten
-equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-
-select -assert-count 1 t:BUFG
-select -assert-count 8 t:FDRE
-select -assert-none t:BUFG t:FDRE %% t:* %D
diff --git a/tests/xilinx/tribuf.v b/tests/xilinx/tribuf.v
deleted file mode 100644
index c64468253..000000000
--- a/tests/xilinx/tribuf.v
+++ /dev/null
@@ -1,8 +0,0 @@
-module tristate (en, i, o);
-    input en;
-    input i;
-    output reg o;
-    
-    always @(en or i)
-		o <= (en)? i : 1'bZ;
-endmodule
diff --git a/tests/xilinx/tribuf.ys b/tests/xilinx/tribuf.ys
deleted file mode 100644
index c9cfb8546..000000000
--- a/tests/xilinx/tribuf.ys
+++ /dev/null
@@ -1,12 +0,0 @@
-read_verilog tribuf.v
-hierarchy -top tristate
-proc
-tribuf
-flatten
-synth
-equiv_opt -assert -map +/xilinx/cells_sim.v -map +/simcells.v synth_xilinx # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd tristate # Constrain all select calls below inside the top module
-# TODO :: Tristate logic not yet supported; see https://github.com/YosysHQ/yosys/issues/1225
-select -assert-count 1 t:$_TBUF_
-select -assert-none t:$_TBUF_ %% t:* %D
diff --git a/tests/xilinx/xilinx_srl.v b/tests/xilinx/xilinx_srl.v
deleted file mode 100644
index bc2a15ab2..000000000
--- a/tests/xilinx/xilinx_srl.v
+++ /dev/null
@@ -1,40 +0,0 @@
-module xilinx_srl_static_test(input i, clk, output [1:0] q);
-reg head = 1'b0;
-reg [3:0] shift1 = 4'b0000;
-reg [3:0] shift2 = 4'b0000;
-
-always @(posedge clk) begin
-    head <= i;
-    shift1 <= {shift1[2:0], head};
-    shift2 <= {shift2[2:0], head};
-end
-
-assign q = {shift2[3], shift1[3]};
-endmodule
-
-module xilinx_srl_variable_test(input i, clk, input [1:0] l1, l2, output [1:0] q);
-reg head = 1'b0;
-reg [3:0] shift1 = 4'b0000;
-reg [3:0] shift2 = 4'b0000;
-
-always @(posedge clk) begin
-    head <= i;
-    shift1 <= {shift1[2:0], head};
-    shift2 <= {shift2[2:0], head};
-end
-
-assign q = {shift2[l2], shift1[l1]};
-endmodule
-
-module $__XILINX_SHREG_(input C, D, E, input [1:0] L, output Q);
-parameter CLKPOL = 1;
-parameter ENPOL = 1;
-parameter DEPTH = 1;
-parameter [DEPTH-1:0] INIT = {DEPTH{1'b0}};
-reg [DEPTH-1:0] r = INIT;
-wire clk = C ^ CLKPOL;
-always @(posedge C)
-    if (E) 
-        r <= { r[DEPTH-2:0], D };
-assign Q = r[L];
-endmodule
diff --git a/tests/xilinx/xilinx_srl.ys b/tests/xilinx/xilinx_srl.ys
deleted file mode 100644
index b8df0e55a..000000000
--- a/tests/xilinx/xilinx_srl.ys
+++ /dev/null
@@ -1,67 +0,0 @@
-read_verilog xilinx_srl.v
-design -save read
-
-design -copy-to model $__XILINX_SHREG_
-hierarchy -top xilinx_srl_static_test
-prep
-design -save gold
-
-techmap
-xilinx_srl -fixed
-opt
-
-# stat
-# show -width
-select -assert-count 1 t:$_DFF_P_
-select -assert-count 2 t:$__XILINX_SHREG_
-
-design -stash gate
-
-design -import gold -as gold
-design -import gate -as gate
-design -copy-from model -as $__XILINX_SHREG_ \$__XILINX_SHREG_
-prep
-
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-dump gate
-sat -verify -prove-asserts -show-ports -seq 5 miter
-
-#design -load gold
-#stat
-
-#design -load gate
-#stat
-
-##########
-
-design -load read
-design -copy-to model $__XILINX_SHREG_
-hierarchy -top xilinx_srl_variable_test
-prep
-design -save gold
-
-xilinx_srl -variable
-opt
-
-#stat
-# show -width
-# write_verilog -noexpr -norename
-select -assert-count 1 t:$dff
-select -assert-count 1 t:$dff r:WIDTH=1 %i
-select -assert-count 2 t:$__XILINX_SHREG_
-
-design -stash gate
-
-design -import gold -as gold
-design -import gate -as gate
-design -copy-from model -as $__XILINX_SHREG_ \$__XILINX_SHREG_
-prep
-
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-sat -verify -prove-asserts -show-ports -seq 5 miter
-
-# design -load gold
-# stat
-
-# design -load gate
-# stat
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