ModelGEP calls in LLVM IR now return an integer that has the same
size of the field being addressed by the ModelGEP.
AddressOf calls, instead, can accept any integer size as argument but
always return a pointer-sized integer.
This comparison was used to sort the best results among candidates for
creating ModelGEPs.
However the comparison itself was broken, i.e. you could have 2
different QualifiedTypes T1 and T2 such that T1 < T2 AND T2 < T1.
This caused broken sorting and non-deterministic selection of the best
ModelGEP substitution.
This commit fixes the comparison and as a result the selection of the
best candidate for the emission of ModelGEPs is not completely
deterministic.
This flag was used with the old C backend to decompile only a single
function from a binary.
The logic of selecting functions in a binary for decompilation is now
part of revng-pipeline, so the -single-decompilation option and the
associated TargetFunctionOption library can be dropped.
Change company name to "rev.ng Labs Srl" in all license headers
to reflect changed company name and legal status
Add missing license headers to files that didn't have one
This commit relaxes some assertions related to DLA, that were too strict
for general type systems not generated by DLA, and fixes the scoring of
the best access to select ModelGEPs.
Before this commit we did not take into account a perfect type match
when deciding the best ModelGEP to emit.
This commit changes the score to take it into account and score higher a
ModelGEP with perfect type match.
Before this commit, SegregateStackAccessPass did not update properly the
metadata. Missing metadata did not allow the rest of the pipeline to
detect the special call.
This commit properly copies the metadata and updates the rest of the
pipeline to take care of the special call.
Before this commit, the type parameter of AddressOf calls was
erroneously set to the same type of the associated ModelGEP.
This commit fixes the problem, setting the type parameter of AddressOf
calls to the pointee type.
Pietro Fezzardi