llvm-project/llvm/test/Reduce/Inputs/remove-instructions.py

import sys

InterestingInstructions = 0

input = open(sys.argv[1], "r")
for line in input:
  i = line.find(';')
  if i >= 0:
    line = line[:i]
  if "%interesting" in line:
    InterestingInstructions += 1
  print(InterestingInstructions)

if InterestingInstructions == 5:
  sys.exit(0) # interesting!

sys.exit(1)