'PathComponents` was copied on the stack by the assignment and then a
pointer to it is returned by `c_str`, leading to a use-after-free since
it is freed when going out of scope
This library contains what were previously 6 separate libraries:
- FilterForDecompilation
- MakeEnvNull
- RemoveCpuLoopStore
- RemoveExceptionCalls
- RemoveLLVMDbgIntrinsics
- RemoveREmoveNewPCCalls
These libraries are now aggregated, and will be merged in single
llvm::Pass for migrating revng-c to the new revng pipelines
infrastructure.
For now they are unused, but they will be used by the first
revng-c pipeline using revng::pipeline, that will strip off all the
artifacts left from the lifting process.
- Re-use generated headers for decompilation
- Drop the 'string_based' prefix, since the string-based C decompiler
backend is not the only decompiler backend and we don't need to
distinguish from the other anymore.
This pass was used to remove llvm.addume(false) calls that caused some
paths of the CFG to be marked as unreachable and optimized away.
The insertion of calls to `llvm.assume(false)` calls was happening due
to the handling of the PC around `opaquepc` calls, generated by `revng`.
The calls to `opaquepc` are no longer emitted by `revng`, nor is the
special handling of the PC around them that causes `llvm.assume(false)`
calls to be emitted.
Hence, the RemoveLLVMAssumeCalls pass to no longer makes sense. This
commit removes it.
This library replaces the old AddIRSerializationMarkers, cleaning up a
lot of historcal baggage, merging Liveness and MarkAnalysis, and
adopting a more accurate naming across all the codebase.
Over time, SerializationReason had accumlated a bunch of values that
were designed to work around the limitation of the clang-based C
decompiler backend.
Now that the clang-based C decompiler backend is gone, these workarounds
can be removed.
These two parts of the code needed to be separated into libraries
because they were used both by the old C backend and by
IRCanonicalization.
Now that the old C backend is dead, they have been incorporated into
IRCanonicalization.
Further changes are necessary to strip away the last leftovers of the
old C backend from MarkAnalysis.
Giacomo Vercesi