* x86: Add semantics for the vpsrld and vpsrlq instructions
* x86: Add semantics for vpaddq
* Fix Haddock for PointwiseLogicalShiftR
* x86: Change vpsubd to PtSub rather than PtAdd
* x86: Add semantics for the vpsrld and vpsrlq instructions
* x86: Add semantics for vpaddq
* Fix Haddock for PointwiseLogicalShiftR
* x86: Change vpsubd to PtSub rather than PtAdd
This change treats them as no-ops (which is what they do on all released
hardware). We could represent them with arch extensions. This has a supporting
change in flexdis86 (included as a submodule).
* update to bv-sized branch of what4 and other things
* removed parameterized-utils submodule completely
* Updates submodules
* Fixes macaw-symbolic w.r.t. crucible-llvm changes
Co-authored-by: Ben Selfridge <ben@000548-benselfridge.local>
symbolic: Add some documentation on pointer operations
Their behavior is not entirely obvious, so hopefully this should be useful to
someone in the future.
* Fix block size accounting in the disassembler
The value in the early failure combinator is used as the *block size* in the
resulting macaw block. The code was actually using the offset from the
beginning of the segment, which is wrong. This produced very large blocks that
didn't reflect the results of code discovery and led to decode errors later in
the pipeline.
* Do not throw an error if concreteIte has a symbolic argument
The `concreteIte` combinator turns formula conditionals with concrete operands
into Haskell-level conditional execution. It would fail because we believed
that there were no cases that could fail to satisfy that condition. That
assumption was not true - we need to fall back to generating a mux when we have
a symbolic condition.
Under GHC8.4, a let binding is independent of the surrounding context,
so the let statements encountered errors related to type matching on
synthesized internal type parameters that could not be identified as
the same due to rigid skolem type binding inside the let.
Improve the TH codegen for macaw-semmc
This change lazily translates as much as possible. It also generates somewhat more compact code. This change also finishes implementing primitives for the aarch32 backend. Complementing the aarch32 changes, the macaw-semmc interface has been modified to allow macaw-aarch32 to avoid a redundant serialize-deserialize round.
Co-authored-by: Kevin Quick <kquick@galois.com>
These are currently broken. If someone is actively interested in
using stack to build then the files could be re-instated from this
position and updated, but it's better to not have them if they are not
used or maintained.
This code was confusing what "offset" to pass to the `failAt` function. Some
sites were passing the offset from the beginning of the block (correct), while
others passed the offset from the start of the segment (incorrect). The
incorrect values were later used as block sizes, which caused some downstream
failures (in renovate).
This commit uniformly fails with the offset from the start of the block.
This change is probably due to the BitTrie modifications in
dismantle-tablegen. It's not clear whether the older or newer number
of discovered blocks is correct; testing at this point is focused more
on getting roughly the correct order of magnitude rather than being
refined enough for high precision values.
