Mercurial > hg > CbC > CbC_llvm
comparison utils/bisect-skip-count @ 121:803732b1fca8
LLVM 5.0
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 17:07:41 +0900 |
| parents | |
| children | c2174574ed3a |
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| 120:1172e4bd9c6f | 121:803732b1fca8 |
|---|---|
| 1 #!/usr/bin/env python | |
| 2 # This script is used to bisect skip and count arguments for --debug-counter. | |
| 3 # It is similar to bisect, except it understands how to increase skip and decrease count | |
| 4 import os | |
| 5 import sys | |
| 6 import argparse | |
| 7 # This is for timeout support. Use the recommended way of import. | |
| 8 # We do timeouts because when doing, execution testing, we have a habit | |
| 9 # of finding variants that infinite loop | |
| 10 if os.name == 'posix' and sys.version_info[0] < 3: | |
| 11 import subprocess32 as subprocess | |
| 12 else: | |
| 13 import subprocess | |
| 14 parser = argparse.ArgumentParser() | |
| 15 | |
| 16 parser.add_argument('--skipstart', type=int, default=0) | |
| 17 parser.add_argument('--skipend', type=int, default=(1 << 32)) | |
| 18 parser.add_argument('--countstart', type=int, default=0) | |
| 19 parser.add_argument('--countend', type=int, default=(1 << 32)) | |
| 20 parser.add_argument('--timeout', type=int, default=None) | |
| 21 # Use shell support if you need to use complex shell expressions in your command | |
| 22 parser.add_argument('--shell', type=bool, default=False) | |
| 23 parser.add_argument('command', nargs='+') | |
| 24 | |
| 25 args = parser.parse_args() | |
| 26 | |
| 27 start = args.skipstart | |
| 28 end = args.skipend | |
| 29 | |
| 30 print("Bisect of Skip starting!") | |
| 31 print("Start: %d" % start) | |
| 32 print("End: %d" % end) | |
| 33 | |
| 34 last = None | |
| 35 while start != end and start != end-1: | |
| 36 count = start + (end - start)/2 | |
| 37 print("Visiting Skip: %d with (Start, End) = (%d,%d)" % (count, start, end)) | |
| 38 cmd = [x % {'skip':count, 'count':-1} for x in args.command] | |
| 39 print cmd | |
| 40 try: | |
| 41 result = subprocess.call(cmd, shell=args.shell, timeout=args.timeout) | |
| 42 if result == 0: | |
| 43 print(" PASSES! Setting end to count") | |
| 44 end = count | |
| 45 else: | |
| 46 print(" FAILS! Setting start to count") | |
| 47 start = count | |
| 48 except: | |
| 49 print(" TIMEOUT, setting end to count") | |
| 50 end = count | |
| 51 firstcount = start | |
| 52 print("Last good skip: %d" % start) | |
| 53 start = args.countstart | |
| 54 end = args.countend | |
| 55 print("Bisect of Count starting!") | |
| 56 print("Start: %d" % start) | |
| 57 print("End: %d" % end) | |
| 58 while start != end and start != end-1: | |
| 59 count = start + (end - start)/2 | |
| 60 print("Visiting Count: %d with (Start, End) = (%d,%d)" % (count, start, end)) | |
| 61 cmd = [x % {'count':count, 'skip':firstcount } for x in args.command] | |
| 62 print cmd | |
| 63 try: | |
| 64 result = subprocess.call(cmd, shell=args.shell, timeout=args.timeout) | |
| 65 if result == 0: | |
| 66 print(" PASSES! Setting start to count") | |
| 67 start = count | |
| 68 else: | |
| 69 print(" FAILS! Setting end to count") | |
| 70 end = count | |
| 71 except: | |
| 72 print(" TIMEOUT, setting start to count") | |
| 73 start = count | |
| 74 | |
| 75 print("Last good count: %d" % start) |