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