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#!/usr/bin/env python3
import argparse
import sys
import random
from contextlib import contextmanager
@contextmanager
def redirect_stdout(new_target):
old_target, sys.stdout = sys.stdout, new_target
try:
yield new_target
finally:
sys.stdout = old_target
def random_plus_x():
return "%s x" % random.choice(['+', '+', '+', '-', '-', '|', '&', '^'])
def maybe_plus_x(expr):
if random.randint(0, 4) == 0:
return "(%s %s)" % (expr, random_plus_x())
else:
return expr
parser = argparse.ArgumentParser(
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-S', '--seed', type=int, help='seed for PRNG')
parser.add_argument('-c',
'--count',
type=int,
default=100,
help='number of test cases to generate')
args = parser.parse_args()
if args.seed is not None:
print("PRNG seed: %d" % args.seed)
random.seed(args.seed)
for idx in range(args.count):
with open('temp/uut_%05d.v' % idx, 'w') as f:
with redirect_stdout(f):
print('module uut_%05d(a, b, c, s, y);' % (idx))
op = random.choice([
random.choice(['+', '-', '*', '/', '%']),
random.choice(['<', '<=', '==', '!=', '===', '!==', '>=',
'>']),
random.choice(['<<', '>>', '<<<', '>>>']),
random.choice(['|', '&', '^', '~^', '||', '&&']),
])
print(' input%s [%d:0] a;' % (random.choice(['', ' signed']), 8))
print(' input%s [%d:0] b;' % (random.choice(['', ' signed']), 8))
print(' input%s [%d:0] c;' % (random.choice(['', ' signed']), 8))
print(' input s;')
print(' output [%d:0] y;' % 8)
ops1 = ['a', 'b']
ops2 = ['a', 'c']
random.shuffle(ops1)
random.shuffle(ops2)
cast1 = random.choice(['', '$signed', '$unsigned'])
cast2 = random.choice(['', '$signed', '$unsigned'])
print(' assign y = (s ? %s(%s %s %s) : %s(%s %s %s));' %
(cast1, ops1[0], op, ops1[1],
cast2, ops2[0], op, ops2[1]))
print('endmodule')
with open('temp/uut_%05d.ys' % idx, 'w') as f:
with redirect_stdout(f):
print('read_verilog temp/uut_%05d.v' % idx)
print('proc;;')
print('copy uut_%05d gold' % idx)
print('rename uut_%05d gate' % idx)
print('tee -a temp/all_share_log.txt log')
print('tee -a temp/all_share_log.txt log #job# uut_%05d' % idx)
print('tee -a temp/all_share_log.txt opt gate')
print('tee -a temp/all_share_log.txt opt_share gate')
print('tee -a temp/all_share_log.txt opt_clean gate')
print(
'miter -equiv -flatten -ignore_gold_x -make_outputs -make_outcmp gold gate miter'
)
print(
'sat -set-def-inputs -verify -prove trigger 0 -show-inputs -show-outputs miter'
)
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