This is an ongoing series of commits that are reformatting our
Python code.
Reformatting is done with `black`.
If you end up having problems merging this commit because you
have made changes to a python file, the best way to handle that
is to run git checkout --ours <yourfile> and then reformat it
with black.
If you run into any problems, post to discourse about it and
we will try to help.
RFC Thread below:
https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style
Reviewed By: MatzeB
Differential Revision: https://reviews.llvm.org/D150761
With -dataflow-log=/dir we will write /dir/0.html etc for each
function analyzed.
These files show the function's code and CFG, and the path through
the CFG taken by the analysis. At each analysis point we can see the
lattice state.
Currently the lattice state dump is not terribly useful but we can
improve this: showing values associated with the current Expr,
simplifying flow condition, highlighting changes etc.
(Trying not to let this patch scope-creep too much, so I ripped out the
half-finished features)
Demo: 9718fdd484/analysis.html
Differential Revision: https://reviews.llvm.org/D146591
