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      1 #!/usr/bin/env python
      2 #===- lib/fuzzer/scripts/merge_data_flow.py ------------------------------===#
      3 #
      4 #                     The LLVM Compiler Infrastructure
      5 #
      6 # This file is distributed under the University of Illinois Open Source
      7 # License. See LICENSE.TXT for details.
      8 #
      9 #===------------------------------------------------------------------------===#
     10 # Merge several data flow traces into one.
     11 # Usage:
     12 #   merge_data_flow.py trace1 trace2 ...  > result
     13 #===------------------------------------------------------------------------===#
     14 import sys
     15 import fileinput
     16 from array import array
     17 
     18 def Merge(a, b):
     19   res = array('b')
     20   for i in range(0, len(a)):
     21     res.append(ord('1' if a[i] == '1' or b[i] == '1' else '0'))
     22   return res.tostring()
     23 
     24 def main(argv):
     25   D = {}
     26   for line in fileinput.input():
     27     [F,BV] = line.strip().split(' ')
     28     if F in D:
     29       D[F] = Merge(D[F], BV)
     30     else:
     31       D[F] = BV;
     32   for F in D.keys():
     33     print("%s %s" % (F, D[F]))
     34 
     35 if __name__ == '__main__':
     36   main(sys.argv)
     37