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CSA add alumacc related tests.

This commit is contained in:
nella 2026-03-19 17:45:56 +01:00
parent 4b0b1d35b5
commit 8181373ea3
6 changed files with 896 additions and 0 deletions

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read_verilog <<EOT
module alu_add3(
input [7:0] a, b, c,
output [7:0] y
);
assign y = a + b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 1 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module alu_add4(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module alu_add5(
input [11:0] a, b, c, d, e,
output [11:0] y
);
assign y = a + b + c + d + e;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 3 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module alu_add8(
input [15:0] a, b, c, d, e, f, g, h,
output [15:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module alu_add16(
input [15:0] a0, a1, a2, a3, a4, a5, a6, a7,
input [15:0] a8, a9, a10, a11, a12, a13, a14, a15,
output [15:0] y
);
assign y = a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7
+ a8 + a9 + a10 + a11 + a12 + a13 + a14 + a15;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 14 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
design -reset

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read_verilog <<EOT
module alu_add2(
input [7:0] a, b,
output [7:0] y
);
assign y = a + b;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
select -assert-none t:$fa
select -assert-none t:$add
select -assert-none t:$sub
select -assert-count 1 t:$alu
design -reset
read_verilog <<EOT
module alu_sub2(
input [7:0] a, b,
output [7:0] y
);
assign y = a - b;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
select -assert-none t:$fa
select -assert-none t:$add
select -assert-none t:$sub
select -assert-count 1 t:$alu
design -reset
read_verilog <<EOT
module alu_compare(
input [7:0] a, b,
output y
);
assign y = (a < b);
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
select -assert-none t:$fa
select -assert-none t:$add
select -assert-none t:$sub
select -assert-count 1 t:$alu
design -reset
read_verilog <<EOT
module macc_mul(
input [7:0] a, b, c,
output [15:0] y
);
assign y = a * b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$fa
select -assert-min 1 t:$macc t:$macc_v2 %u
design -reset
read_verilog <<EOT
module alu_fanout(
input [7:0] a, b, c,
output [7:0] mid, y
);
wire [7:0] ab = a + b;
assign mid = ab;
assign y = ab + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-none t:$fa
select -assert-count 2 t:$alu
design -reset
read_verilog <<EOT
module macc_2port(
input [7:0] a, b,
output [7:0] y
);
assign y = a + b;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$fa
design -reset
read_verilog <<EOT
module alu_idempotent(
input [15:0] a, b, c, d, e, f, g, h,
output [15:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$sub
select -assert-none t:$alu
csa_tree
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$sub
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module alu_mixed_width(
input [7:0] a,
input [3:0] b,
input [15:0] c,
input [7:0] d,
output [15:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_signed(
input signed [7:0] a, b, c, d,
output signed [9:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module fir_4tap_alu(
input clk,
input [15:0] x, c0, c1, c2, c3,
output reg [31:0] y
);
reg [15:0] x1, x2, x3;
always @(posedge clk) begin
x1 <= x;
x2 <= x1;
x3 <= x2;
end
wire [31:0] sum = x*c0 + x1*c1 + x2*c2 + x3*c3;
always @(posedge clk) y <= sum;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-min 1 t:$dff
design -reset
read_verilog <<EOT
module alu_mixed_sign(
input signed [7:0] a,
input [7:0] b,
input signed [7:0] c,
output signed [9:0] y
);
assign y = a + b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 1 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_wide32(
input [31:0] a, b, c, d,
output [31:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_single(
input [7:0] a,
output [7:0] y
);
assign y = a;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
select -assert-none t:$fa
select -assert-none t:$add
select -assert-none t:$sub
select -assert-none t:$alu
design -reset
read_verilog <<EOT
module macc_mul_survives(
input [7:0] a, b, c, d,
output [15:0] y
);
assign y = a * b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$fa
select -assert-min 1 t:$macc t:$macc_v2 %u
design -reset

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read_verilog <<EOT
module equiv_alu_add3(
input [3:0] a, b, c,
output [3:0] y
);
assign y = a + b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-count 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_alu_add4(
input [3:0] a, b, c, d,
output [3:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_alu_add8(
input [3:0] a, b, c, d, e, f, g, h,
output [3:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_alu_signed(
input signed [3:0] a, b, c, d,
output signed [5:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_alu_sub_mixed(
input [3:0] a, b, c, d,
output [3:0] y
);
assign y = a + b - c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-min 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_alu_sub_all(
input [3:0] a, b, c, d,
output [3:0] y
);
assign y = a - b - c - d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
equiv_opt csa_tree
design -load postopt
select -assert-min 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_macc_add3(
input [3:0] a, b, c,
output [3:0] y
);
assign y = a + b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
equiv_opt csa_tree
design -load postopt
select -assert-count 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_macc_add4(
input [3:0] a, b, c, d,
output [3:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
equiv_opt csa_tree
design -load postopt
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_macc_add8(
input [3:0] a, b, c, d, e, f, g, h,
output [3:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
equiv_opt csa_tree
design -load postopt
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module equiv_macc_signed(
input signed [3:0] a, b, c, d,
output signed [5:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
equiv_opt csa_tree
design -load postopt
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
design -reset

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read_verilog <<EOT
module sim_alu_add4(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
sat -set a 1 -set b 2 -set c 3 -set d 4 -prove y 10
sat -set a 0 -set b 0 -set c 0 -set d 0 -prove y 0
sat -set a 255 -set b 1 -set c 0 -set d 0 -prove y 0
sat -set a 100 -set b 50 -set c 25 -set d 25 -prove y 200
sat -set a 255 -set b 255 -set c 255 -set d 255 -prove y 252
design -reset
read_verilog <<EOT
module sim_alu_sub_mixed(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b - c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
sat -set a 10 -set b 20 -set c 5 -set d 3 -prove y 28
sat -set a 0 -set b 0 -set c 0 -set d 0 -prove y 0
sat -set a 100 -set b 50 -set c 30 -set d 10 -prove y 130
design -reset
read_verilog <<EOT
module sim_alu_sub_all(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a - b - c - d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
sat -set a 100 -set b 10 -set c 20 -set d 30 -prove y 40
sat -set a 0 -set b 0 -set c 0 -set d 0 -prove y 0
sat -set a 255 -set b 1 -set c 1 -set d 1 -prove y 252
design -reset
read_verilog <<EOT
module sim_macc_add4(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
sat -set a 1 -set b 2 -set c 3 -set d 4 -prove y 10
sat -set a 0 -set b 0 -set c 0 -set d 0 -prove y 0
sat -set a 255 -set b 1 -set c 0 -set d 0 -prove y 0
sat -set a 100 -set b 50 -set c 25 -set d 25 -prove y 200
design -reset
read_verilog <<EOT
module sim_macc_add8(
input [7:0] a, b, c, d, e, f, g, h,
output [7:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
sat -set a 1 -set b 2 -set c 3 -set d 4 -set e 5 -set f 6 -set g 7 -set h 8 -prove y 36
sat -set a 0 -set b 0 -set c 0 -set d 0 -set e 0 -set f 0 -set g 0 -set h 0 -prove y 0
sat -set a 32 -set b 32 -set c 32 -set d 32 -set e 32 -set f 32 -set g 32 -set h 32 -prove y 0
design -reset
read_verilog <<EOT
module sim_macc_sub_mixed(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b - c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
sat -set a 10 -set b 20 -set c 5 -set d 3 -prove y 28
sat -set a 0 -set b 0 -set c 0 -set d 0 -prove y 0
sat -set a 100 -set b 50 -set c 30 -set d 10 -prove y 130
design -reset

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read_verilog <<EOT
module alu_sub_3op(
input [7:0] a, b, c,
output [7:0] y
);
assign y = a - b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_sub_mixed(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b - c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 3 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_sub_all(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a - b - c - d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 3 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset
read_verilog <<EOT
module alu_sub_signed(
input signed [7:0] a, b, c, d,
output signed [9:0] y
);
assign y = a + b - c - d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt_clean
csa_tree
opt_clean
select -assert-count 3 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$alu
select -assert-none t:$sub
design -reset

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# Tests for csa_tree operating on $macc cells (post-alumacc)
# After alumacc, chains of adds get merged into a single $macc cell.
# The csa_tree pass should decompose it into FA + final add.
# 3-input add merged into $macc
read_verilog <<EOT
module macc_add3(
input [7:0] a, b, c,
output [7:0] y
);
assign y = a + b + c;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-count 1 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$macc t:$macc_v2 %u
design -reset
# 4-input add merged into $macc
read_verilog <<EOT
module macc_add4(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b + c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-count 2 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$macc t:$macc_v2 %u
design -reset
# 5-input add merged into $macc
read_verilog <<EOT
module macc_add5(
input [11:0] a, b, c, d, e,
output [11:0] y
);
assign y = a + b + c + d + e;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-count 3 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$macc t:$macc_v2 %u
design -reset
# 8-input add merged into $macc
read_verilog <<EOT
module macc_add8(
input [15:0] a, b, c, d, e, f, g, h,
output [15:0] y
);
assign y = a + b + c + d + e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-count 6 t:$fa
select -assert-count 1 t:$add
select -assert-none t:$macc t:$macc_v2 %u
design -reset
read_verilog <<EOT
module macc_sub_mixed(
input [7:0] a, b, c, d,
output [7:0] y
);
assign y = a + b - c + d;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$macc t:$macc_v2 %u
select -assert-min 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module macc_const(
input [7:0] a, b, c,
output [7:0] y
);
assign y = a + b + c + 8'd42;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$macc t:$macc_v2 %u
select -assert-min 1 t:$fa
select -assert-count 1 t:$add
design -reset
read_verilog <<EOT
module macc_two(
input [7:0] a, b, c, d, e, f, g, h,
output [7:0] y1, y2
);
assign y1 = a + b + c + d;
assign y2 = e + f + g + h;
endmodule
EOT
hierarchy -auto-top
proc
alumacc
opt
csa_tree
opt_clean
select -assert-none t:$macc t:$macc_v2 %u
select -assert-count 4 t:$fa
select -assert-count 2 t:$add
design -reset