This commit completes the support of various rare PrimitiveTypes, that
has been added opportunistically over time and has remained inconsistent
across the codebase:
- float80_t
- float96_t
- generic80_t
- generic96_t
The first two are necessary because on some platforms long double is
either 10 or 12 bytes wide.
The second two are necessary because the Generic PrimitiveType should
allow all non-zero byte sizes allowed by any other PrimitiveType.
This was one of the few places left in the type system where a
`model::Type` referred to another one not using QualifiedType, but a
naked `TupleTreeReference`.
Switching it to be a `model::QualifiedType` makes cross-references
between `model::Type`s more homogenenous, requiring less corner-cases
to handle for whoever manipulates types.
Model classes are now described by a YAML document, which is used to
generate C++ headers containing classes and all the boilerplate
required for YAML serialization/deserialization, usage in
SortedVectors, etc. See the README in include/revng/Model for more
info.
This commit changes the `TupleTree::deserialize` method to return an
`llvm::ErrorOr<TupleTree>`, enabling users to choose their policies on
error reporting.
This commit introduces the type system of the model along with several
various other improvements to the model and its users.
* Introduce the type system.
* Introduce possibility to tag certain fields in the model as to be
optional during YAML serialization.
* All the `Name` fields have been replaced in favor of `CustomName` plus
a `name` method that will use `CustomName` if available, or an
automatically generated name otherwise.
* Make TupleTreeReferences behavior more robust: now you either need to
have a valid pointer to `Root` and a `Path` or be default constructed
(`nullptr` for `Root` and an empty `Path`). Any other configuration is
invalid.
* The type system introduces `RawFunctionType`: this superseds the
previous way in which we were specifying arguments and return
values. Users of such information have been updated accordingly.
Ivan Krysak