`MetaAddress` replaces all the `uint64_t` used to represent a virtual
address. Its main features are:
* It has a non-zero representation of invalid addresses.
* It supports tags to represent code that has different interpretations but
resides at the same address in memory (namely ARM vs Thumb).
* Arithmetic operations cannot overflow.
* It supports epochs, a way we intend to employ to handle self-modifying code
(i.e., different code at the same address at different times).
* It supports "address spaces", which enable handling architectures with
multiple address spaces.
* It fits in two 64-bit registers.
* Drop unused argument names from function prototypes
* Make `static` some methods
* Disable some copy constructors
* Fix casing of Doxygen `\file` directives
* Add some casts to make the compiler happy
* Initialize `hasRelocationAddend` for AArch64
* Use references in range-for where possible
* Drop default for `switch` statements covering all the entries of an `enum`
* Make some global variables `static`
* Drop dead functions
LLVM 9 drops the `TerminatorInst` class. This commit replaces it with
`Instruction` where possible and asserts
`Instruction::isTerminator()`. It also switches from
`TerminatorInst::successors` to `successors(TerminatorInst *)`.
This commit introduces the `enforce-abi` pass, which consumes the
information provided by the ABI analysis and enforces them in the
isolated functions adding actual arguments.
This commit also rewrites the logic of `ResultsPool::finalize` and
changes the semantic of `Yes` statements on arguments to `YesOrDead`.
In stack analysis' output, the list of basic blocks composing a function
was not sorted. This lead a test to fail due to the presence of the
`--order` flag when comparing the output.
This commit ensures that this list is ordered, by basic block name.
This commit moves around most files. The new directory structure is as
follows:
* `lib/$LIBRARY/`: contains a library, i.e., a set of `.cpp` files used
by multiple libraries/tools.
* `include/revng/$LIBRARY/`: contains the public headers associated to
the library in `lib/$LIBRARY/`.
* `tools/$TOOL/`: directory where all the `.cpp` files (and private
headers) for a tool reside. Currently we have two tools: `revamb` and
`revamb-dump`.
On top of this, all file names are now in camel case.
Pietro Fezzardi