llvm/test/tools/llvm-reduce/remove-bbs-sequence.py

   1 import subprocess
   2 import sys
   3
   4 opt = subprocess.run(
   5     ["opt", "-passes=print<loops>", "-disable-output", sys.argv[1]],
   6     stdout=subprocess.PIPE,
   7     stderr=subprocess.PIPE,
   8 )
   9
  10 stdout = opt.stdout.decode()
  11
  12 pattern = "Loop at depth 1 containing"
  13
  14 if pattern in opt.stderr.decode():
  15     print("This is interesting!")
  16     sys.exit(0)
  17 else:
  18     print("This is NOT interesting!")
  19     sys.exit(1)