* Rename from compare-json.py to compare-yaml
* Handle YAML
* Support certain characteristics of the model
* Use subgraph matching to perform comparisons
* Introduce some testing
* Drop Python 2 support
* Reformat
These functions can be used in conjunction to dump the Model on a
file during a gdb session, for example:
```
(gdb) p writeToFile(Model->toString(), "/tmp/model.yaml")
```
Without this attribute, newer versions of llvm are not able to
remove calls to `ReadOnly` functions whose return value is unused.
This is instead the expected behavior for the functions that are
generated by `revng` with the `ReadOnly` attribute.
ConcreteTupleTreeKeyWrapper::clone() should cleanup the Target object
befor cloning, otherwise the destructor of the inner Pointer object
is never called.
Before this commit, SerializeModelPass and SerializeModelWrapperPass had
hard dependencies on the passes that load the model from LLVM-IR.
This commit makes this dependency optional. When the passes for model
serialization are executed, if they see that nobody requested to load
the model, they will not try to serialize it.
This prevents them from crashing when running in pipelines that only
contain passes that ignore the model.
This is particularly beneficial because `revng opt` automatically adds
`-serialize-model` at the end of each pipeline and, before this commit,
this meant that `revng opt` could not be used for unit-testing simple
llvm passes that do not use the model.
With this commit, `revng opt` can be used for unit-tests, even on LLVM IR
with missing model.
* Drop outdated portion describing ABI/CFG metadata that are now stored
in the model.
* Introduce MetaAddress concept.
* Describe the four-parts program counter CSVs.
* Update description of the dispatcher.
* Update description of `function_call` and `newpc`.
* Introduce some documentation for the model.
* Improve the way enums are serialized/deserialized.
* Mark certain fields of model data structures as optional.
* introduces some error messages during model validation.
This commit reserves the "unnamed_" prefix for revng.
The first use of this reserved prefix is in `model::Type`s
`CustomName`s and `model::Identifier`s.
This commit also makes the `verify()` method stricter for
`model::Identifier` so that an `Identifier` whose name starts with the
reserved prefix does fails verification.
This commit changes the `TupleTree::deserialize` method to return an
`llvm::ErrorOr<TupleTree>`, enabling users to choose their policies on
error reporting.
callOnPathSteps was using linear scan search in KeyedObjectContainer.
This commit fixes it for using binary search, dramatically improving
performance in workloads that do lots of lookups.
Antonio Frighetto