40 lines
846 B
Plaintext
40 lines
846 B
Plaintext
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#!/usr/bin/python3
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# Check an llvm bcanalyzer dump for -flto
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# This script implements the following command in python
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# to avoid PCRE backtrace limits in grep.
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# grep -xP '.*\-flto((?!-fno-lto).)*' <input file>
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import re
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import sys
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def open_input_file():
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if len(sys.argv) > 1:
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f = open(sys.argv[1], "r")
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else:
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f = sys.stdin
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if not f:
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raise Exception("Could not open input file")
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return f
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def match_lto(input_lines):
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match_found = False
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for line in input_lines:
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match = re.match(r"^.*\-flto((?!-fno-lto).)*$", line)
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if match:
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match_found = True
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print(f"{match.group(0)}")
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return match_found
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def main():
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input_file = open_input_file()
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input_lines = input_file.readlines()
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if input_file != sys.stdin:
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input_file.close()
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if match_lto(input_lines):
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sys.exit(0)
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sys.exit(1)
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main()
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