1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#!/usr/bin/env python
"""
A wrapper for Clang specialized for gathering information about OpenMP programs.
Simple replace calls to clang or clang++ with llvm-openmp-analyzer to run the
analysis passes.
"""
import argparse
import subprocess
import yaml # PyYaml to save and load analysis information
import sys
import io
from analyzer import getKernelUsage
desc = '''A wrapper around clang that runs OpenMP Analysis passes and gathers
information about OpenMP programs.'''
default_args = ["-fopenmp", "-Rpass=openmp-opt", "-Rpass-missed=openmp-opt", "-Rpass-analysis=openmp-opt"]
def main():
compiler = ["clang++"] if sys.argv[0].endswith('++') else ["clang"]
parser = argparse.ArgumentParser(description=desc)
parser.add_argument('--usage-report-file',
metavar='filename',
default='usage.yaml',
help='Filename used for the OpenMP kernel usage reports in YAML format. "usage.yaml" by default.')
parser.add_argument('--no-usage-report',
action='store_true',
default=False,
help='Do not general a usage report for the OpenMP kernels.')
args, clang_args = parser.parse_known_args()
subprocess.run(compiler + default_args + clang_args, check=True)
output = subprocess.run(compiler + default_args + clang_args + ["-v"], stderr=subprocess.PIPE)
stderr = output.stderr.decode('utf-8')
if not args.no_usage_report:
usage = getKernelUsage(stderr, fname=args.usage_report_file)
with io.open(args.usage_report_file, 'w', encoding = 'utf-8') as f:
yaml.dump(usage, f)
if __name__ == '__main__':
main()
|
