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1 #!/usr/bin/env python
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2 # Given a -print-before-all -print-module-scope log from an opt invocation,
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3 # chunk it into a series of individual IR files, one for each pass invocation.
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4 # If the log ends with an obvious stack trace, try to split off a separate
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5 # "crashinfo.txt" file leaving only the valid input IR in the last chunk.
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6 # Files are written to current working directory.
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7
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8 import sys
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9
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10 basename = "chunk-"
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11 chunk_id = 0
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12
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13 def print_chunk(lines):
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14 global chunk_id
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15 global basename
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16 fname = basename + str(chunk_id) + ".ll"
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17 chunk_id = chunk_id + 1
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18 print "writing chunk " + fname + " (" + str(len(lines)) + " lines)"
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19 with open(fname, "w") as f:
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20 f.writelines(lines)
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21
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22 is_dump = False
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23 cur = []
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24 for line in sys.stdin:
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25 if line.startswith("*** IR Dump Before ") and len(cur) != 0:
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26 print_chunk(cur);
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27 cur = []
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28 cur.append("; " + line)
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29 elif line.startswith("Stack dump:"):
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30 print_chunk(cur);
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31 cur = []
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32 cur.append(line)
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33 is_dump = True
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34 else:
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35 cur.append(line)
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36
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37 if is_dump:
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38 print "writing crashinfo.txt (" + str(len(cur)) + " lines)"
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39 with open("crashinfo.txt", "w") as f:
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40 f.writelines(cur)
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41 else:
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42 print_chunk(cur);
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