Test new module system merge #1850
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The CI isn't running due to a small number of merge conflicts, some of which I helped introduce (sorry!):
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Thanks for the heads up, I'll resolve them. (The AWSLC test is still timing out locally, I'll keep poking at it.) |
No testing yet
This distinction is new in the new module system.
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andreistefanescu
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Jun 15, 2023
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We should add this to CHANGES.md |
The previous implementation of `translateLLVMGEP` was needlessly complicated, as it required the pointer argument to have a very particular shape to its type. But there's no good reason for this requirement, as the only thing that `translateLLVMGEP` _really_ needs to check for is that all of the index arguments are `0` (so that no pointer offset needs to be computed). I have simplified the implementation of `translateLLVMGEP` to reflect this and expanded its Haddocks accordingly. A secondary benefit of this change is that we no longer match on `PtrTo` in `translateLLVMGEP`, which will make it easier to support opaque pointers in an upcoming commit. Fixes #1875.
This commit bumps the `llvm-pretty` submodule to bring in a commit from GaloisInc/llvm-pretty#110 that adds additional fields to `ConstGEP` to represent the basis type and expression to use for offset calculations. This also bumps the `llvm-pretty-bc-parser` and `crucible` submodule to bring in corresponding changes from GaloisInc/llvm-pretty-bc-parser#221 and GaloisInc/crucible#1085, respectively. This change affects one use site in `heapster-saw`, which is easily adapted.
This patch adds support for LLVM 15 and 16 by adding support for opaque pointers, which are described in https://llvm.org/docs/OpaquePointers.html. I have also added a test case involving LLVM bitcode using opaque pointers to kick the tires and ensure that the basics work as expected. For the most part, this is a straightforward process, as most uses of pointer types in SAW already do not care about pointee types. There are some exceptions, however: * The `typeOfSetupValue` function, as well as several places that use this function, scrutinize pointee types of pointers, which would appear to fly in the face of opaque pointers. I attempt to explain in #1876 which this is actually OK for now (although a bit awkward). * The `llvm_boilerplate`/skeleton machinery does not support opaque pointers at all. See #1877. * The `llvm_fresh_expanded_val` command does not support opaque pointers at all. See #1879. This patch also bumps the following submodules to bring in support for opaque pointers: * `llvm-pretty`: GaloisInc/llvm-pretty#110 * `llvm-pretty-bc-parser`: GaloisInc/llvm-pretty-bc-parser#221 * `crucible`: GaloisInc/crucible#1085 This also bumps the `what4` submodule to bring in the changes from GaloisInc/what4#234. This isn't necessary to support opaque pointers, but it _is_ necessary to support a build plan involving `tasty-sugar-2.2.*`, which `llvm-pretty-bc-parser`'s test suite now requires.
See #1877 for further discussion.
See #1879 for further discussion.
This way, users who encounter them in the wild will be more strongly encouraged to report it on the issue tracker.
This was referenced Jul 10, 2023
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