mirror of https://github.com/YosysHQ/yosys.git
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
|
from random import Random
|
||
|
|
|
||
|
|
def main():
|
||
|
|
r = Random(1)
|
||
|
|
|
||
|
|
N = 750
|
||
|
|
with open("tests/arch/gatemate/luttrees.v", "w") as v:
|
||
|
|
print(f"module luttrees(input [{N-1}:0] a, b, c, d, e, output [{N-1}:0] q);", file=v)
|
||
|
|
for i in range(N):
|
||
|
|
def f():
|
||
|
|
return r.choice(["&", "|", "^"])
|
||
|
|
|
||
|
|
def a(x):
|
||
|
|
return f"({r.choice(['', '!'])}{x}[{i}])"
|
||
|
|
|
||
|
|
# Bias towards testing bigger functions
|
||
|
|
k = r.choice([2, 3, 4, 4, 4, 5, 5, 5])
|
||
|
|
if k == 2:
|
||
|
|
expr = f"{a('a')}{f()}{a('b')}"
|
||
|
|
elif k == 3:
|
||
|
|
expr = f"({a('a')}{f()}{a('b')}){f()}{a('c')}"
|
||
|
|
elif k == 4:
|
||
|
|
# Two types of 4-input function
|
||
|
|
if r.choice([False, True]):
|
||
|
|
expr = f"(({a('a')}{f()}{a('b')}){f()}{a('c')}){f()}{a('d')}"
|
||
|
|
else:
|
||
|
|
expr = f"({a('a')}{f()}{a('b')}){f()}({a('c')}{f()}{a('d')})"
|
||
|
|
elif k == 5:
|
||
|
|
expr = f"(({a('a')}{f()}{a('b')}){f()}({a('c')}{f()}{a('d')})){f()}{a('e')}"
|
||
|
|
print(f" assign q[{i}] = {expr};", file=v)
|
||
|
|
print("endmodule", file=v)
|
||
|
|
with open("tests/arch/gatemate/luttrees.ys", "w") as s:
|
||
|
|
print(f"""
|
||
|
|
read_verilog luttrees.v
|
||
|
|
design -save read
|
||
|
|
|
||
|
|
hierarchy -top luttrees
|
||
|
|
proc
|
||
|
|
equiv_opt -async2sync -assert -map +/gatemate/cells_sim.v synth_gatemate -noiopad -luttree -nomx4 -nomx8 # equivalency check
|
||
|
|
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||
|
|
cd luttrees # Constrain all select calls below inside the top module
|
||
|
|
|
||
|
|
select -assert-count {N} t:CC_LUT2 t:CC_L2T4 t:CC_L2T5 %%
|
||
|
|
select -assert-none t:CC_LUT2 t:CC_L2T4 t:CC_L2T5 %% t:* %D
|
||
|
|
""", file=s)
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|