Add `--detect-abi-after-inline-ir-dir=<dir>` which writes one
`<fn>.ll` file per outlined stub immediately after the helper inlinining
has taken place.
Inline `revng_inline` helper calls into each outlined stub which is
consumed by `analyzeABI`, so the analysis can observe the reads and
writes the helper performs on the floating point registers.
The helper module is linked only once at the beginning of the pass, to
avoid double linking issues.
Three closely-coupled changes that have to land together to keep
every caller compiling:
- Introduce a per-instance ExtraState recording surface (with a
NoExtraState default) and thread it through applyTransferFunction.
- Replace getMaximalFixedPoint's positional arg list with a single
MFPConfiguration struct, so callers spell out only the fields they
need.
- Replace the EntryLabels pointer with an Entry/All/vector* variant
so callers can ask for the graph entry, every node, or a custom
list without juggling extra arguments.
Update every existing caller for the new signatures and switch
Liveness::GraphType to a plain Function* (with the inverse
GraphTraits selected at call sites).
Move member declaration to the top of the class definition of
`GeneratedCodeBasicInfo` and initialize primitive members.
Merge the `run` method into the constructor since all uses have them
happening close to each other.
Add a mixin class for piperuns that work on an LLVM module and need
both the model function and the `llvm::Function`. Pipe that inherit this
mixin will receive both the model and LLVM function in the
`runOnLLVMFunction` method.
This commit drops libptc in favor of its new form libtcg.
It brings several improvements, among which:
* The QEMU version we work on has been upgraded.
* CPUStateAccessAnalysis has been reimplemented in a way that makes it
easier to debug and solves some limitations (e.g., tracking leaking
pointers).
* Identification of pieces of the CPU state that are read by each helper
and fixing access to the CPU state is now performed at build-time.
* We no longer mmap the code we need to translate, dropping all the
issues related to code that needed to be mapped where something is
already present.
* We now have two distinct flavors of helper modules: the full one and
the "slim" one. The latter contains the definition only of functions
we intend to inline. It is used in most of the pipeline, a good thing
since we spend less time optimizing code we don't really care about.
The full module is only used on the re-compilation branch of the
pipeline.
* We no longer split the `cpu_loop` function.
* We change MetaAddress to rely on architectures from `model::` as
opposed to the LLVM ones.
* We no longer attach debug info to LLVM IR containing the original
assembly.
* We now verify that the lifted code only contains code we expect.
* Make the following private headers public:
* Lift/CPUStateAccessAnalysisPass.h
* Lift/CSVOffsets.h
* Lift/PTCDump.h
* Lift/VariableManager.h
* Move from revngSupport to revngLift:
* IRAnnotators.{h,cpp}
* SelfReferencingDbgAnnotationWriter.{h,cpp}
* Move from revngSupport to revngModel:
* FunctionTags.{h,cpp}
* ProgramCounterHandler.{h,cpp}
* Move from revngSupport to revngRecompile:
* OriginalAssemblyAnnotationWriter.{h,cpp}
Some stuff that was before implicitly checked during deserialization
now need explicit checks, those are introduced here.
This also fixes test failures related to the changed serialization
format (which fields can or cannot be omitted when they have
the default value).
In this commit we instruct the build system to use the unified schema
files instead of collecting the `TUPLE-TREE-YAML` comments.
The fixes to C++ files are necessary because they depend on the order
of the fields in the schema, which was changed.
Andrea Gussoni