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Merge pull request #1310 from SergeyDegtyar/master 

Add new tests for ice40 architecture
This commit is contained in:
Eddie Hung 2019-08-30 10:54:22 -07:00 committed by GitHub
parent 36e38ed46a 53912ad649
commit eef0676105
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37 changed files with 766 additions and 1 deletions
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1
Makefile
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@ -709,6 +709,7 @@ test: $(TARGETS) $(EXTRA_TARGETS)
+cd tests/opt && bash run-test.sh
+cd tests/aiger && bash run-test.sh $(ABCOPT)
+cd tests/arch && bash run-test.sh
+cd tests/ice40 && bash run-test.sh $(SEEDOPT)
@echo ""
@echo " Passed \"make test\"."
@echo ""

4
tests/ice40/.gitignore vendored Normal file
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@ -0,0 +1,4 @@
*.log
/run-test.mk
+*_synth.v
+*_testbench

13
tests/ice40/add_sub.v Normal file
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@ -0,0 +1,13 @@
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

9
tests/ice40/add_sub.ys Normal file
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@ -0,0 +1,9 @@
read_verilog add_sub.v
hierarchy -top top
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 11 t:SB_LUT4
select -assert-count 6 t:SB_CARRY
select -assert-none t:SB_LUT4 t:SB_CARRY %% t:* %D

91
tests/ice40/adffs.v Normal file
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@ -0,0 +1,91 @@
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

12
tests/ice40/adffs.ys Normal file
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read_verilog adffs.v
proc
async2sync # converts async flops to a 'sync' variant clocked by a 'super'-clock
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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:SB_DFF
select -assert-count 1 t:SB_DFFN
select -assert-count 2 t:SB_DFFSR
select -assert-count 7 t:SB_LUT4
select -assert-none t:SB_DFF t:SB_DFFN t:SB_DFFSR t:SB_LUT4 %% t:* %D

19
tests/ice40/alu.v Normal file
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@ -0,0 +1,19 @@
module top (
input clock,
input [31:0] dinA, dinB,
input [2:0] opcode,
output reg [31:0] dout
);
always @(posedge clock) begin
case (opcode)
0: dout <= dinA + dinB;
1: dout <= dinA - dinB;
2: dout <= dinA >> dinB;
3: dout <= $signed(dinA) >>> dinB;
4: dout <= dinA << dinB;
5: dout <= dinA & dinB;
6: dout <= dinA | dinB;
7: dout <= dinA ^ dinB;
endcase
end
endmodule

11
tests/ice40/alu.ys Normal file
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@ -0,0 +1,11 @@
read_verilog alu.v
hierarchy -top top
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 62 t:SB_CARRY
select -assert-count 32 t:SB_DFF
select -assert-count 655 t:SB_LUT4
select -assert-none t:SB_CARRY t:SB_DFF t:SB_LUT4 %% t:* %D

17
tests/ice40/counter.v Normal file
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@ -0,0 +1,17 @@
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

11
tests/ice40/counter.ys Normal file
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@ -0,0 +1,11 @@
read_verilog counter.v
hierarchy -top top
proc
flatten
equiv_opt -map +/ice40/cells_sim.v synth_ice40 # 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:SB_CARRY
select -assert-count 8 t:SB_DFFR
select -assert-count 8 t:SB_LUT4
select -assert-none t:SB_CARRY t:SB_DFFR t:SB_LUT4 %% t:* %D

37
tests/ice40/dffs.v Normal file
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@ -0,0 +1,37 @@
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

10
tests/ice40/dffs.ys Normal file
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@ -0,0 +1,10 @@
read_verilog dffs.v
hierarchy -top top
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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:SB_DFF
select -assert-count 1 t:SB_DFFE
select -assert-none t:SB_DFF t:SB_DFFE %% t:* %D

13
tests/ice40/div_mod.v Normal file
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@ -0,0 +1,13 @@
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

9
tests/ice40/div_mod.ys Normal file
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@ -0,0 +1,9 @@
read_verilog div_mod.v
hierarchy -top top
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 62 t:SB_LUT4
select -assert-count 41 t:SB_CARRY
select -assert-none t:SB_LUT4 t:SB_CARRY %% t:* %D

23
tests/ice40/dpram.v Normal file
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@ -0,0 +1,23 @@
/*
Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 72].
*/
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

15
tests/ice40/dpram.ys Normal file
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@ -0,0 +1,15 @@
read_verilog dpram.v
hierarchy -top top
proc
memory -nomap
equiv_opt -run :prove -map +/ice40/cells_sim.v synth_ice40
memory
opt -full
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -verify -prove-asserts -seq 3 -set-init-zero -show-inputs -show-outputs miter
design -load postopt
cd top
select -assert-count 1 t:SB_RAM40_4K
select -assert-none t:SB_RAM40_4K %% t:* %D

73
tests/ice40/fsm.v Normal file
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@ -0,0 +1,73 @@
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
module top (
input clk,
input rst,
input a,
input b,
output g0,
output g1
);
fsm u_fsm ( .clock(clk),
.reset(rst),
.req_0(a),
.req_1(b),
.gnt_0(g0),
.gnt_1(g1));
endmodule

13
tests/ice40/fsm.ys Normal file
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@ -0,0 +1,13 @@
read_verilog fsm.v
hierarchy -top top
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 2 t:SB_DFFESR
select -assert-count 2 t:SB_DFFSR
select -assert-count 1 t:SB_DFFSS
select -assert-count 13 t:SB_LUT4
select -assert-none t:SB_DFFESR t:SB_DFFSR t:SB_DFFSS t:SB_LUT4 %% t:* %D

58
tests/ice40/latches.v Normal file
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@ -0,0 +1,58 @@
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

15
tests/ice40/latches.ys Normal file
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@ -0,0 +1,15 @@
read_verilog latches.v
design -save read
proc
async2sync # converts latches to a 'sync' variant clocked by a 'super'-clock
flatten
synth_ice40
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
design -load read
synth_ice40
cd top
select -assert-count 4 t:SB_LUT4
select -assert-none t:SB_LUT4 %% t:* %D

18
tests/ice40/logic.v Normal file
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@ -0,0 +1,18 @@
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

7
tests/ice40/logic.ys Normal file
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@ -0,0 +1,7 @@
read_verilog logic.v
hierarchy -top top
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 9 t:SB_LUT4
select -assert-none t:SB_LUT4 %% t:* %D

25
tests/ice40/macc.v Normal file
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@ -0,0 +1,25 @@
/*
Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 77].
*/
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

10
tests/ice40/macc.ys Normal file
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@ -0,0 +1,10 @@
read_verilog macc.v
proc
hierarchy -top top
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # 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 38 t:SB_LUT4
select -assert-count 3 t:SB_CARRY
select -assert-count 7 t:SB_DFFSR
select -assert-none t:SB_LUT4 t:SB_CARRY t:SB_DFFSR %% t:* %D

21
tests/ice40/memory.v Normal file
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@ -0,0 +1,21 @@
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

15
tests/ice40/memory.ys Normal file
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@ -0,0 +1,15 @@
read_verilog memory.v
hierarchy -top top
proc
memory -nomap
equiv_opt -run :prove -map +/ice40/cells_sim.v synth_ice40
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:SB_RAM40_4K
select -assert-none t:SB_RAM40_4K %% t:* %D

11
tests/ice40/mul.v Normal file
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@ -0,0 +1,11 @@
module top
(
input [5:0] x,
input [5:0] y,
output [11:0] A,
);
assign A = x * y;
endmodule

7
tests/ice40/mul.ys Normal file
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@ -0,0 +1,7 @@
read_verilog mul.v
hierarchy -top top
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # 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:SB_MAC16
select -assert-none t:SB_MAC16 %% t:* %D

100
tests/ice40/mux.v Normal file
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@ -0,0 +1,100 @@
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

8
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read_verilog mux.v
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 19 t:SB_LUT4
select -assert-none t:SB_LUT4 %% t:* %D

18
tests/ice40/rom.v Normal file
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@ -0,0 +1,18 @@
/*
Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 74].
*/
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

8
tests/ice40/rom.ys Normal file
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@ -0,0 +1,8 @@
read_verilog rom.v
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 5 t:SB_LUT4
select -assert-none t:SB_LUT4 %% t:* %D

2
tests/ice40/run-test.sh
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@ -6,7 +6,7 @@ for x in *.ys; do
echo "all:: run-$x"
echo "run-$x:"
echo " @echo 'Running $x..'"
echo " @../../yosys -ql ${x%.ys}.log $x"
echo " @../../yosys -ql ${x%.ys}.log $x -w 'Yosys has only limited support for tri-state logic at the moment.'"
done
for s in *.sh; do
if [ "$s" != "run-test.sh" ]; then

22
tests/ice40/shifter.v Normal file
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@ -0,0 +1,22 @@
module top (
out,
clk,
in
);
output [7:0] out;
input signed clk, in;
reg signed [7:0] out = 0;
always @(posedge clk)
begin
`ifndef BUG
out <= out >> 1;
out[7] <= in;
`else
out <= out << 1;
out[7] <= in;
`endif
end
endmodule

9
tests/ice40/shifter.ys Normal file
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@ -0,0 +1,9 @@
read_verilog shifter.v
hierarchy -top top
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # 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 8 t:SB_DFF
select -assert-none t:SB_DFF %% t:* %D

23
tests/ice40/tribuf.v Normal file
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@ -0,0 +1,23 @@
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

9
tests/ice40/tribuf.ys Normal file
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@ -0,0 +1,9 @@
read_verilog tribuf.v
hierarchy -top top
proc
flatten
equiv_opt -assert -map +/ice40/cells_sim.v -map +/simcells.v synth_ice40 # 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