All the definitions of `greaterThan` were `!lowerThanOrEqual`, and all
the uses were implicitly assuming this semantic.
However, this was confusing because in a Lattice the ordering is not
total, hence `!lowerThanOrEqual` is not equivalent to `greaterThan`.
This commit drops the `greaterThan` method altogether to avoid
confusion.
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.
Certain non-`static` functions were missing prototype declarations,
triggering a compiler warning.
This was due to a missing header or due to a bug in boost.
This commit resolves this situation.
Include directives are groups by library, the groups should be sorted
from the most general (i.e., the STL) to the most specific (the local
includes).
This commit ensures that Boost includes are before LLVM includes.
This is a very large commit importing the reviewed (and heavily
simplified) stack analysis and the new ABI analysis, which provides
information on the calling convention of each function and so on.
For an overview of the new analyses please consult OVERVIEW.md.
The stack analysis is the foundation to obtain accurate information
about the body of a function, which registers are callee-saved,
arguments, return values and so on.
It is implemented as a pass to run in revamb-dump.
This commit also introduces analysis tests specific to what we aim to
obtain from the analysis and also some basic unit tests for data
structures related to the stack analysis.
Pietro Fezzardi