Revert "Add tests for ecp5 architecture."

This reverts commit 134d3fea909bae02f4f814e3d649658502b44b73.

30 files changed, 0 insertions, 864 deletions

diff --git a/tests/ecp5/.gitignore b/tests/ecp5/.gitignore
deleted file mode 100644
index 9a71dca69..000000000
--- a/tests/ecp5/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-*.log
-/run-test.mk
-+*_synth.v
-+*_testbench
diff --git a/tests/ecp5/add_sub.v b/tests/ecp5/add_sub.v
deleted file mode 100644
index 177c32e30..000000000
--- a/tests/ecp5/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/ecp5/add_sub.ys b/tests/ecp5/add_sub.ys
deleted file mode 100644
index 03aec6694..000000000
--- a/tests/ecp5/add_sub.ys
+++ /dev/null
@@ -1,8 +0,0 @@
-read_verilog add_sub.v
-hierarchy -top top
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 10 t:LUT4
-select -assert-none t:LUT4 %% t:* %D
-
diff --git a/tests/ecp5/adffs.v b/tests/ecp5/adffs.v
deleted file mode 100644
index 93c8bf52c..000000000
--- a/tests/ecp5/adffs.v
+++ /dev/null
@@ -1,91 +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 dffsr
-    ( input d, clk, pre, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( posedge clk, posedge pre, posedge clr )
-		if ( clr )
-			q <= 1'b0;
-		else if ( pre )
-			q <= 1'b1;
-		else
-            q <= d;
-endmodule
-
-module ndffnsnr
-    ( input d, clk, pre, clr, output reg q );
-    initial begin
-      q = 0;
-    end
-	always @( negedge clk, negedge pre, negedge clr )
-		if ( !clr )
-			q <= 1'b0;
-		else if ( !pre )
-			q <= 1'b1;
-		else
-            q <= d;
-endmodule
-
-module top (
-input clk,
-input clr,
-input pre,
-input a,
-output b,b1,b2,b3
-);
-
-dffsr u_dffsr (
-        .clk (clk ),
-        .clr (clr),
-        .pre (pre),
-        .d (a ),
-        .q (b )
-    );
-
-ndffnsnr u_ndffnsnr (
-        .clk (clk ),
-        .clr (clr),
-        .pre (pre),
-        .d (a ),
-        .q (b1 )
-    );
-
-adff u_adff (
-        .clk (clk ),
-        .clr (clr),
-        .d (a ),
-        .q (b2 )
-    );
-
-adffn u_adffn (
-        .clk (clk ),
-        .clr (clr),
-        .d (a ),
-        .q (b3 )
-    );
-
-endmodule
diff --git a/tests/ecp5/adffs.ys b/tests/ecp5/adffs.ys
deleted file mode 100644
index 5829fef5f..000000000
--- a/tests/ecp5/adffs.ys
+++ /dev/null
@@ -1,12 +0,0 @@
-read_verilog adffs.v
-proc
-async2sync # converts async flops to a 'sync' variant clocked by a 'super'-clock
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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:DFF
-select -assert-count 1 t:DFFN
-select -assert-count 2 t:DFFSR
-select -assert-count 7 t:LUT4
-select -assert-none t:DFF t:DFFN t:DFFSR t:LUT4 %% t:* %D
diff --git a/tests/ecp5/common.v b/tests/ecp5/common.v
deleted file mode 100644
index 5446f0817..000000000
--- a/tests/ecp5/common.v
+++ /dev/null
@@ -1,47 +0,0 @@
-module assert_dff(input clk, input test, input pat);
-    always @(posedge clk)
-    begin
-        #1;
-        if (test != pat)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time);
-            $stop;
-        end
-    end
-endmodule
-
-module assert_tri(input en, input A, input B);
-    always @(posedge en)
-    begin
-        #1;
-        if (A !== B)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
-            $stop;
-        end
-    end
-endmodule
-
-module assert_Z(input clk, input A);
-    always @(posedge clk)
-    begin
-        #1;
-        if (A === 1'bZ)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time," ",A);
-            $stop;
-        end
-    end
-endmodule
-
-module assert_comb(input A, input B);
-    always @(*)
-    begin
-        #1;
-        if (A !== B)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
-            $stop;
-        end
-    end
-endmodule
diff --git a/tests/ecp5/dffs.v b/tests/ecp5/dffs.v
deleted file mode 100644
index d97840c43..000000000
--- a/tests/ecp5/dffs.v
+++ /dev/null
@@ -1,37 +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
-
-module top (
-input clk,
-input en,
-input a,
-output b,b1,
-);
-
-dff u_dff (
-        .clk (clk ),
-        .d (a ),
-        .q (b )
-    );
-
-dffe u_ndffe (
-        .clk (clk ),
-        .en (en),
-        .d (a ),
-        .q (b1 )
-    );
-
-endmodule
diff --git a/tests/ecp5/dffs.ys b/tests/ecp5/dffs.ys
deleted file mode 100644
index 07470c5ba..000000000
--- a/tests/ecp5/dffs.ys
+++ /dev/null
@@ -1,10 +0,0 @@
-read_verilog dffs.v
-hierarchy -top top
-proc
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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:DFF
-select -assert-count 1 t:DFFE
-select -assert-none t:DFF t:DFFE %% t:* %D
diff --git a/tests/ecp5/div_mod.v b/tests/ecp5/div_mod.v
deleted file mode 100644
index 64a36707d..000000000
--- a/tests/ecp5/div_mod.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/ecp5/div_mod.ys b/tests/ecp5/div_mod.ys
deleted file mode 100644
index 169c5978e..000000000
--- a/tests/ecp5/div_mod.ys
+++ /dev/null
@@ -1,12 +0,0 @@
-read_verilog div_mod.v
-hierarchy -top top
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 28 t:CCU2C
-select -assert-count 45 t:L6MUX21
-select -assert-count 183 t:LUT4
-select -assert-count 79 t:PFUMX
-select -assert-none t:LUT4 t:CCU2C t:L6MUX21 t:PFUMX %% t:* %D
diff --git a/tests/ecp5/dpram.v b/tests/ecp5/dpram.v
deleted file mode 100644
index 2e69d6b3b..000000000
--- a/tests/ecp5/dpram.v
+++ /dev/null
@@ -1,20 +0,0 @@
-module top (din, write_en, waddr, wclk, raddr, rclk, dout);
-parameter addr_width = 8;
-parameter data_width = 8;
-input [addr_width-1:0] waddr, raddr;
-input [data_width-1:0] din;
-input write_en, wclk, rclk;
-output [data_width-1:0] dout;
-reg [data_width-1:0] dout;
-reg [data_width-1:0] mem [(1<<addr_width)-1:0]
-/* synthesis syn_ramstyle = "no_rw_check" */ ;
-always @(posedge wclk) // Write memory.
-begin
-if (write_en)
-mem[waddr] <= din; // Using write address bus.
-end
-always @(posedge rclk) // Read memory.
-begin
-dout <= mem[raddr]; // Using read address bus.
-end
-endmodule
diff --git a/tests/ecp5/dpram.ys b/tests/ecp5/dpram.ys
deleted file mode 100644
index 7762ce788..000000000
--- a/tests/ecp5/dpram.ys
+++ /dev/null
@@ -1,18 +0,0 @@
-read_verilog dpram.v
-hierarchy -top top
-proc
-memory -nomap
-equiv_opt -run :prove -map +/ecp5/cells_sim.v synth_ecp5
-memory
-opt -full
-
-# TODO
-#equiv_opt -run prove: -assert null
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-#sat -verify -prove-asserts -tempinduct -show-inputs -show-outputs miter
-
-design -load postopt
-cd top
-select -assert-count 1 t:DP16KD
-select -assert-none t:DP16KD %% t:* %D
-write_verilog dpram_synth.v
diff --git a/tests/ecp5/dpram_tb.v b/tests/ecp5/dpram_tb.v
deleted file mode 100644
index dede64614..000000000
--- a/tests/ecp5/dpram_tb.v
+++ /dev/null
@@ -1,81 +0,0 @@
-module testbench;
-    reg clk;
-
-    initial begin
-       //  $dumpfile("testbench.vcd");
-       //  $dumpvars(0, testbench);
-
-        #5 clk = 0;
-        repeat (10000) begin
-            #5 clk = 1;
-            #5 clk = 0;
-        end
-    end
-
-
-    reg [7:0] data_a = 0;
-	reg [7:0] addr_a = 0;
-	reg [7:0] addr_b = 0;
-    reg we_a = 0;
-    reg re_a = 1;
-	wire [7:0] q_a;
-	reg mem_init = 0;
-
-	reg [7:0] pq_a;
-
-    always @(posedge clk) begin
-    #3;
-    data_a <= data_a + 17;
-
-    addr_a <= addr_a + 1;
-    addr_b <= addr_b + 1;
-    end
-
-    always @(posedge addr_a) begin
-    #10;
-        if(addr_a > 6'h3E)
-            mem_init <= 1;
-    end
-
-	always @(posedge clk) begin
-    //#3;
-    we_a <= !we_a;
-    end
-
-    reg [7:0] mem [(1<<8)-1:0];
-
-    always @(posedge clk) // Write memory.
-	begin
-	if (we_a)
-	mem[addr_a] <= data_a; // Using write address bus.
-	end
-	always @(posedge clk) // Read memory.
-	begin
-	pq_a <= mem[addr_b]; // Using read address bus.
-	end
-
-	top uut (
-		.din(data_a),
-		.write_en(we_a),
-		.waddr(addr_a),
-		.wclk(clk),
-		.raddr(addr_b),
-		.rclk(clk),
-		.dout(q_a)
-		);
-
-	uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a), .B(pq_a));
-
-endmodule
-
-module uut_mem_checker(input clk, input init, input en, input [7:0] A, input [7:0] B);
-    always @(posedge clk)
-    begin
-        #1;
-        if (en == 1 & init == 1 & A !== B)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
-            $stop;
-        end
-    end
-endmodule
diff --git a/tests/ecp5/latches.v b/tests/ecp5/latches.v
deleted file mode 100644
index 9dc43e4c2..000000000
--- a/tests/ecp5/latches.v
+++ /dev/null
@@ -1,58 +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
-
-
-module top (
-input clk,
-input clr,
-input pre,
-input a,
-output b,b1,b2
-);
-
-
-latchp u_latchp (
-        .en (clk ),
-        .d (a ),
-        .q (b )
-    );
-
-
-latchn u_latchn (
-        .en (clk ),
-        .d (a ),
-        .q (b1 )
-    );
-
-
-latchsr u_latchsr (
-        .en (clk ),
-        .clr (clr),
-        .pre (pre),
-        .d (a ),
-        .q (b2 )
-    );
-
-endmodule
diff --git a/tests/ecp5/latches.ys b/tests/ecp5/latches.ys
deleted file mode 100644
index 2c77304a1..000000000
--- a/tests/ecp5/latches.ys
+++ /dev/null
@@ -1,7 +0,0 @@
-read_verilog latches.v
-synth_ecp5
-cd top
-select -assert-count 4 t:LUT4
-select -assert-count 1 t:PFUMX
-select -assert-none t:LUT4 t:PFUMX %% t:* %D
-write_verilog latches_synth.v
diff --git a/tests/ecp5/latches_tb.v b/tests/ecp5/latches_tb.v
deleted file mode 100644
index b0585264b..000000000
--- a/tests/ecp5/latches_tb.v
+++ /dev/null
@@ -1,57 +0,0 @@
-module testbench;
-    reg clk;
-
-    initial begin
-        // $dumpfile("testbench.vcd");
-        // $dumpvars(0, testbench);
-
-        #5 clk = 0;
-        repeat (10000) begin
-            #5 clk = 1;
-            #5 clk = 0;
-        end
-    end
-
-
-    reg [2:0] dinA = 0;
-    wire doutB,doutB1,doutB2;
-	reg lat,latn,latsr = 0;
-
-    top uut (
-        .clk (clk ),
-        .a (dinA[0] ),
-        .pre (dinA[1] ),
-        .clr (dinA[2] ),
-        .b (doutB ),
-        .b1 (doutB1 ),
-        .b2 (doutB2 )
-    );
-
-    always @(posedge clk) begin
-    #3;
-    dinA <= dinA + 1;
-    end
-
-    	always @*
-		if ( clk )
-			lat <= dinA[0];
-
-
-    	always @*
-		if ( !clk )
-			latn <= dinA[0];
-
-
-		always @*
-		if ( dinA[2] )
-			latsr <= 1'b0;
-		else if ( dinA[1] )
-			latsr <= 1'b1;
-		else if ( clk )
-			latsr <= dinA[0];
-
-	assert_dff lat_test(.clk(clk), .test(doutB), .pat(lat));
-    assert_dff latn_test(.clk(clk), .test(doutB1), .pat(latn));
-    assert_dff latsr_test(.clk(clk), .test(doutB2), .pat(latsr));
-
-endmodule
diff --git a/tests/ecp5/macc.v b/tests/ecp5/macc.v
deleted file mode 100644
index 115f8ce42..000000000
--- a/tests/ecp5/macc.v
+++ /dev/null
@@ -1,22 +0,0 @@
-module top(clk,a,b,c,set);
-parameter A_WIDTH = 4;
-parameter B_WIDTH = 3;
-input set;
-input clk;
-input signed [(A_WIDTH - 1):0] a;
-input signed [(B_WIDTH - 1):0] b;
-output signed [(A_WIDTH + B_WIDTH - 1):0] c;
-reg [(A_WIDTH + B_WIDTH - 1):0] reg_tmp_c;
-assign c = reg_tmp_c;
-always @(posedge clk)
-begin
-if(set)
-begin
-reg_tmp_c <= 0;
-end
-else
-begin
-reg_tmp_c <= a * b + c;
-end
-end
-endmodule
diff --git a/tests/ecp5/macc.ys b/tests/ecp5/macc.ys
deleted file mode 100644
index 530877727..000000000
--- a/tests/ecp5/macc.ys
+++ /dev/null
@@ -1,10 +0,0 @@
-read_verilog macc.v
-proc
-hierarchy -top top
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 41 t:LUT4
-select -assert-count 6 t:CARRY
-select -assert-count 7 t:DFFSR
-select -assert-none t:LUT4 t:CARRY t:DFFSR %% t:* %D
diff --git a/tests/ecp5/memory.v b/tests/ecp5/memory.v
deleted file mode 100644
index cb7753f7b..000000000
--- a/tests/ecp5/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/ecp5/memory.ys b/tests/ecp5/memory.ys
deleted file mode 100644
index 9fdeb0d16..000000000
--- a/tests/ecp5/memory.ys
+++ /dev/null
@@ -1,22 +0,0 @@
-read_verilog memory.v
-hierarchy -top top
-proc
-memory -nomap
-equiv_opt -run :prove -map +/ecp5/cells_sim.v synth_ecp5
-memory
-opt -full
-
-# TODO
-#equiv_opt -run prove: -assert null
-miter -equiv -flatten -make_assert -make_outputs gold gate miter
-#sat -verify -prove-asserts -tempinduct -show-inputs -show-outputs miter
-
-design -load postopt
-cd top
-select -assert-count 24 t:L6MUX21
-select -assert-count 71 t:LUT4
-select -assert-count 32 t:PFUMX
-select -assert-count 8 t:TRELLIS_DPR16X4
-select -assert-count 35 t:TRELLIS_FF
-select -assert-none t:L6MUX21 t:LUT4 t:PFUMX t:TRELLIS_DPR16X4 t:TRELLIS_FF %% t:* %D
-write_verilog memory_synth.v
diff --git a/tests/ecp5/memory_tb.v b/tests/ecp5/memory_tb.v
deleted file mode 100644
index be69374eb..000000000
--- a/tests/ecp5/memory_tb.v
+++ /dev/null
@@ -1,79 +0,0 @@
-module testbench;
-    reg clk;
-
-    initial begin
-       //  $dumpfile("testbench.vcd");
-       //  $dumpvars(0, testbench);
-
-        #5 clk = 0;
-        repeat (10000) begin
-            #5 clk = 1;
-            #5 clk = 0;
-        end
-    end
-
-
-    reg [7:0] data_a = 0;
-	reg [5:0] addr_a = 0;
-    reg we_a = 0;
-    reg re_a = 1;
-	wire [7:0] q_a;
-	reg mem_init = 0;
-
-	reg [7:0] pq_a;
-
-    top uut (
-    .data_a(data_a),
-	.addr_a(addr_a),
-	.we_a(we_a),
-	.clk(clk),
-	.q_a(q_a)
-    );
-
-    always @(posedge clk) begin
-    #3;
-    data_a <= data_a + 17;
-
-    addr_a <= addr_a + 1;
-    end
-
-    always @(posedge addr_a) begin
-    #10;
-        if(addr_a > 6'h3E)
-            mem_init <= 1;
-    end
-
-	always @(posedge clk) begin
-    //#3;
-    we_a <= !we_a;
-    end
-
-    // Declare the RAM variable for check
-	reg [7:0] ram[63:0];
-
-	// Port A for check
-	always @ (posedge clk)
-	begin
-		if (we_a)
-		begin
-			ram[addr_a] <= data_a;
-			pq_a <= data_a;
-		end
-		pq_a <= ram[addr_a];
-	end
-
-	uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a), .B(pq_a));
-
-endmodule
-
-module uut_mem_checker(input clk, input init, input en, input [7:0] A, input [7:0] B);
-    always @(posedge clk)
-    begin
-        #1;
-        if (en == 1 & init == 1 & A !== B)
-        begin
-            $display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
-            $stop;
-        end
-    end
-endmodule
diff --git a/tests/ecp5/mul.v b/tests/ecp5/mul.v
deleted file mode 100644
index d5b48b1d7..000000000
--- a/tests/ecp5/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/ecp5/mul.ys b/tests/ecp5/mul.ys
deleted file mode 100644
index 0e8d6908f..000000000
--- a/tests/ecp5/mul.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog mul.v
-hierarchy -top top
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 6 t:CCU2C
-select -assert-count 46 t:L6MUX21
-select -assert-count 169 t:LUT4
-select -assert-count 72 t:PFUMX
-
-select -assert-none t:CCU2C t:L6MUX21 t:LUT4 t:PFUMX %% t:* %D
diff --git a/tests/ecp5/mux.v b/tests/ecp5/mux.v
deleted file mode 100644
index 0814b733e..000000000
--- a/tests/ecp5/mux.v
+++ /dev/null
@@ -1,100 +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
-
-
-module top (
-input [3:0] S,
-input [15:0] D,
-output M2,M4,M8,M16
-);
-
-mux2 u_mux2 (
-        .S (S[0]),
-        .A (D[0]),
-        .B (D[1]),
-        .Y (M2)
-    );
-
-
-mux4 u_mux4 (
-        .S (S[1:0]),
-        .D (D[3:0]),
-        .Y (M4)
-    );
-
-mux8 u_mux8 (
-        .S (S[2:0]),
-        .D (D[7:0]),
-        .Y (M8)
-    );
-
-mux16 u_mux16 (
-        .S (S[3:0]),
-        .D (D[15:0]),
-        .Y (M16)
-    );
-
-endmodule
diff --git a/tests/ecp5/mux.ys b/tests/ecp5/mux.ys
deleted file mode 100644
index 47a965dd3..000000000
--- a/tests/ecp5/mux.ys
+++ /dev/null
@@ -1,11 +0,0 @@
-read_verilog mux.v
-proc
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 30 t:LUT4
-select -assert-count 7 t:L6MUX21
-select -assert-count 12 t:PFUMX
-
-select -assert-none t:LUT4 t:L6MUX21 t:PFUMX %% t:* %D
diff --git a/tests/ecp5/rom.v b/tests/ecp5/rom.v
deleted file mode 100644
index c31ca3b2b..000000000
--- a/tests/ecp5/rom.v
+++ /dev/null
@@ -1,15 +0,0 @@
-module top(data, addr);
-output [3:0] data;
-input [4:0] addr;
-always @(addr) begin
-case (addr)
-0 : data = 'h4;
-1 : data = 'h9;
-2 : data = 'h1;
-15 : data = 'h8;
-16 : data = 'h1;
-17 : data = 'h0;
-default : data = 'h0;
-endcase
-end
-endmodule
diff --git a/tests/ecp5/rom.ys b/tests/ecp5/rom.ys
deleted file mode 100644
index 8a52749a1..000000000
--- a/tests/ecp5/rom.ys
+++ /dev/null
@@ -1,9 +0,0 @@
-read_verilog rom.v
-proc
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # 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 6 t:LUT4
-select -assert-count 3 t:PFUMX
-select -assert-none t:LUT4 t:PFUMX %% t:* %D
diff --git a/tests/ecp5/run-test.sh b/tests/ecp5/run-test.sh
deleted file mode 100755
index bd9d35314..000000000
--- a/tests/ecp5/run-test.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-set -e
-if [ -f "../../techlibs/common/simcells.v" ]; then
-	COMMON_PREFIX=../../techlibs/common
-	TECHLIBS_PREFIX=../../techlibs
-else
-	COMMON_PREFIX=/usr/local/share/yosys
-	TECHLIBS_PREFIX=/usr/local/share/yosys
-fi
-{
-echo "all::"
-for x in *.ys; do
-	echo "all:: run-$x"
-	echo "run-$x:"
-	echo "	@echo 'Running $x..'"
-	echo "	@../../yosys -ql ${x%.ys}.log $x -w 'Yosys has only limited support for tri-state logic at the moment.'"
-
-	if [ -f "${x%.ys}_tb.v" ]; then
-		echo "	@echo 'Running ${x%.ys}_tb.v..'"
-		echo "	@iverilog -o ${x%.ys}_testbench $t ${x%.ys}_synth.v common.v $TECHLIBS_PREFIX/ice40/cells_sim.v"
-		echo "	@vvp -N ${x%.ys}_testbench"
-	fi
-done
-
-for s in *.sh; do
-	if [ "$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 ${MAKE:-make} -f run-test.mk
diff --git a/tests/ecp5/tribuf.v b/tests/ecp5/tribuf.v
deleted file mode 100644
index 870a02584..000000000
--- a/tests/ecp5/tribuf.v
+++ /dev/null
@@ -1,23 +0,0 @@
-module tristate (en, i, o);
-    input en;
-    input i;
-    output o;
-
-	assign o = en ? i : 1'bz;
-
-endmodule
-
-
-module top (
-input en,
-input a,
-output b
-);
-
-tristate u_tri (
-        .en (en ),
-        .i (a ),
-        .o (b )
-    );
-
-endmodule
diff --git a/tests/ecp5/tribuf.ys b/tests/ecp5/tribuf.ys
deleted file mode 100644
index f454a0c02..000000000
--- a/tests/ecp5/tribuf.ys
+++ /dev/null
@@ -1,9 +0,0 @@
-read_verilog tribuf.v
-hierarchy -top top
-proc
-flatten
-equiv_opt -assert -map +/ecp5/cells_sim.v -map +/simcells.v synth_ecp5 # equivalency check
-design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
-cd top # Constrain all select calls below inside the top module
-select -assert-count 1 t:$_TBUF_
-select -assert-none t:$_TBUF_ %% t:* %D