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Some helper functions to analyze the output of sys.getdxp() (which is
only available if Python was built with -DDYNAMIC_EXECUTION_PROFILE).
These will tell you which opcodes have been executed most frequently
in the current process, and, if Python was also built with -DDXPAIRS,
will tell you which instruction _pairs_ were executed most frequently,
which may help in choosing new instructions.
If Python was built without -DDYNAMIC_EXECUTION_PROFILE, importing
this module will raise a RuntimeError.
If you're running a script you want to profile, a simple way to get
the common pairs is:
$ PYTHONPATH=$PYTHONPATH:<python_srcdir>/Tools/scripts ./python -i -O the_script.py --args
...
> from analyze_dxp import *
> s = render_common_pairs()
> open('/tmp/some_file', 'w').write(s)
� N�getdxpzKCan't import analyze_dxp: Python built without -DDYNAMIC_EXECUTION_PROFILE.c C s# t | � d k o" t | d t � S)z[Returns True if the Python that produced the argument profile
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(opcode, opname, # of occurrences)
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z�Returns the most common opcode pairs in order of descending frequency.
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(1st opname, 2nd opname),
# of occurrences of the pair)
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op1profileZop2r r r r r k s z common_pairs.<locals>.<listcomp>Nr r r r Tr )r r r r r! )r r" r r r � common_pairs` s r$ c s7 � d k r t � � � f d d � } d j | � � S)z�Renders the most common opcode pairs to a string in order of
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# of occurrences: ('1st opname', '2nd opname')
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