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46 lines
1.6 KiB
46 lines
1.6 KiB
4 months ago
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#!/usr/bin/env python
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"""
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A wrapper for Clang specialized for gathering information about OpenMP programs.
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Simple replace calls to clang or clang++ with llvm-openmp-analyzer to run the
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analysis passes.
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"""
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import argparse
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import subprocess
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import yaml # PyYaml to save and load analysis information
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import sys
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import io
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from analyzer import getKernelUsage
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desc = '''A wrapper around clang that runs OpenMP Analysis passes and gathers
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information about OpenMP programs.'''
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default_args = ["-fopenmp", "-Rpass=openmp-opt", "-Rpass-missed=openmp-opt", "-Rpass-analysis=openmp-opt"]
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def main():
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compiler = ["clang++"] if sys.argv[0].endswith('++') else ["clang"]
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parser = argparse.ArgumentParser(description=desc)
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parser.add_argument('--usage-report-file',
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metavar='filename',
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default='usage.yaml',
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help='Filename used for the OpenMP kernel usage reports in YAML format. "usage.yaml" by default.')
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parser.add_argument('--no-usage-report',
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action='store_true',
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default=False,
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help='Do not general a usage report for the OpenMP kernels.')
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args, clang_args = parser.parse_known_args()
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subprocess.run(compiler + default_args + clang_args, check=True)
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output = subprocess.run(compiler + default_args + clang_args + ["-v"], stderr=subprocess.PIPE)
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stderr = output.stderr.decode('utf-8')
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if not args.no_usage_report:
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usage = getKernelUsage(stderr, fname=args.usage_report_file)
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with io.open(args.usage_report_file, 'w', encoding = 'utf-8') as f:
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yaml.dump(usage, f)
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if __name__ == '__main__':
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main()
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