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path: root/app/Main.hs
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module Main where

import           Control.Lens
import qualified Crypto.Random.DRBG   as C
import           Data.ByteString      (ByteString)
import qualified Data.Graph.Inductive as G
import           Data.Text            (Text)
import           Numeric              (showHex)
import           Prelude              hiding (FilePath)
import           Shelly
import qualified Test.QuickCheck      as QC
import           VeriFuzz

genRand :: C.CtrDRBG -> Int -> [ByteString] -> [ByteString]
genRand gen n bytes | n == 0    = ranBytes : bytes
                    | otherwise = genRand newGen (n - 1) $ ranBytes : bytes
  where Right (ranBytes, newGen) = C.genBytes 32 gen

genRandom :: Int -> IO [ByteString]
genRandom n = do
  gen <- C.newGenIO :: IO C.CtrDRBG
  return $ genRand gen n []

runSimulation :: IO ()
runSimulation = do
  gr <- QC.generate $ rDups <$> QC.resize 100 (randomDAG :: QC.Gen (G.Gr Gate ()))
  -- let dot = G.showDot . G.fglToDotString $ G.nemap show (const "") gr
  -- writeFile "file.dot" dot
  -- shelly $ run_ "dot" ["-Tpng", "-o", "file.png", "file.dot"]
  let circ =
        head $ (nestUpTo 5 . generateAST $ Circuit gr) ^.. getVerilogSrc . traverse . getDescription
  rand <- genRandom 20
  val  <- shelly $ runSim defaultIcarus (initMod circ) rand
  putStrLn $ showHex (abs val) ""

runEquivalence :: Text -> IO ()
runEquivalence t = do
  gr <- QC.generate $ rDups <$> QC.resize 100 (randomDAG :: QC.Gen (G.Gr Gate ()))
  let circ =
        initMod
          .   head
          $   (nestUpTo 5 . generateAST $ Circuit gr)
          ^.. getVerilogSrc
          .   traverse
          .   getDescription
  shelly . verbosely $ do
    mkdir_p (fromText "equiv" </> fromText t)
    curr <- toTextIgnore <$> pwd
    setenv "VERIFUZZ_ROOT" curr
    cd (fromText "equiv" </> fromText t)
    runEquiv defaultYosys defaultYosys (Just defaultXst) circ

main :: IO ()
 --main = sample (arbitrary :: Gen (Circuit Input))
main =
  -- runEquivalence
  runSimulation