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* Remove implicit conversion operators from Type
Now types must be explicitly converted to uint32_t with Type::getID or
to ValueType with Type::getVT. This fixes #2572 for switches that use
Type::getVT.
* getVT => getSingle
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This adds support for the reference type proposal. This includes support
for all reference types (`anyref`, `funcref`(=`anyfunc`), and `nullref`)
and four new instructions: `ref.null`, `ref.is_null`, `ref.func`, and
new typed `select`. This also adds subtype relationship support between
reference types.
This does not include table instructions yet. This also does not include
wasm2js support.
Fixes #2444 and fixes #2447.
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Function signatures were previously redundantly stored on Function
objects as well as on FunctionType objects. These two signature
representations had to always be kept in sync, which was error-prone
and needlessly complex. This PR takes advantage of the new ability of
Type to represent multiple value types by consolidating function
signatures as a pair of Types (params and results) stored on the
Function object.
Since there are no longer module-global named function types,
significant changes had to be made to the printing and emitting of
function types, as well as their parsing and manipulation in various
passes.
The C and JS APIs and their tests also had to be updated to remove
named function types.
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This works more like llvm's unreachable handler in that is preserves
information even in release builds.
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This updates spec test suite to that of the current up-to-date version
of https://github.com/WebAssembly/spec repo.
- All failing tests are added in `BLACKLIST` in shared.py with reasons.
- For tests that already existed and was passing and started failing
after the update, we add the new test to the blacklist and preserve
the old file by renaming it to 'old_[FILENAME].wast' not to lose test
coverage. When the cause of the error is fixed or the unsupported
construct gets support so the new test passes, we can delete the
corresponding 'old_[FILENAME].wast' file.
- Adds support for `spectest.print_[type] style imports.
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Current `<<` operator on `Literal` prints `[type].const` with it. But
`[type].const` is rather an instruction than a literal itself, and
printing it with the literals makes less sense when we later have
literals whose type don't have `const` instructions (such as reference
types).
This patch
- Makes `<<` operator on `Literal` print only its value
- Makes wasm-shell's shell interface comply with the spec interpreter's
printing format (`value : type`).
- Prints wasm-shell's `[trap]` message to stderr
These make all `fix_` routines for spec tests in check.py unnecessary.
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Another round of trying to push upstream things from my fork.
This PR only adds support for anyref itself as an opaque type. It does NOT implement the full [reference types proposal](https://github.com/WebAssembly/reference-types/blob/master/proposals/reference-types/Overview.md)--so no table.get/set/grow/etc or ref.null, ref.func, etc.
Figured it was easier to review and merge as we go, especially if I did something fundamentally wrong.
***
I did put it under the `--enable-reference-types` flag as I imagine that even though this PR doesn't complete the full feature set, it probably is the right home. Lmk if not.
I'll also be adding a few github comments to places I want to point out/question.
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In WebAssembly/exception-handling#79 we agreed to rename `except_ref`
type to `exnref`.
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This adds except_ref type, which is a part of the exception handling
proposal.
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Applies the changes in #2065, and temprarily disables the hook since it's too slow to run on a change this large. We should re-enable it in a later commit.
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Mass change to apply clang-format to everything. We are applying this in a PR by me so the (git) blame is all mine ;) but @aheejin did all the work to get clang-format set up and all the manual work to tidy up some things to make the output nicer in #2048
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This corresponds to changes made to the initialization procedure in
the spec. It also removes all the heavy initialization work from the
external interface of the interpreter, which is a nice encapsulation
win.
Implementation of the interpretation of the remaining bulk memory
operations and more rigorous tests of that interpretation will come in
a follow-up PR.
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Adds support for the bulk memory proposal's passive segments. Uses a
new (data passive ...) s-expression syntax to mark sections as
passive.
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* Use modern T p = v; notation to initialize class fields
* Use modern X() = default; notation for empty class constructors
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The main fuzz_opt.py script compares JS VMs, and separately runs binaryen's fuzz-exec that compares the binaryen interpreter to itself (before and after opts). This PR lets us directly compare binaryen's interpreter output to JS VMs. This found a bunch of minor things we can do better on both sides, giving more fuzz coverage.
To enable this, a bunch of tiny fixes were needed:
* Add --fuzz-exec-before which is like --fuzz-exec but just runs the code before opts are run, instead of before and after.
* Normalize double printing (so JS and C++ print comparable things). This includes negative zero in JS, which we never printed properly til now.
* Various improvements to how we print fuzz-exec logging - remove unuseful things, and normalize the others across JS and C++.
* Properly legalize the wasm when --emit-js-wrapper (i.e., we will run the code from JS), and use that in the JS wrapper code.
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Implement and test the following functionality for SIMD.
- Parsing and printing
- Assembling and disassembling
- Interpretation
- C API
- JS API
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This error started showing up after: #1779
error: delete called on non-final 'wasm::ShellExternalInterface' that
has virtual functions but non-virtual destructor
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Before we just looked at function return values when looking for differences before and after running some passes, while fuzzing. This adds logging of values during execution, which can represent control flow, monitor locals, etc., giving a lot more opportunities for the fuzzer to find problems.
Also:
* Clean up the sigToFunctionType function, which allocated a struct and returned it. This makes it safer by returning the struct by value, which is also easier to use in this PR.
* Fix printing of imported function calls without a function type - turns out we always generate function types in loading, so we didn't notice this was broken, but this new fuzzer feature hit it.
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Where reasonable from a readability perspective, remove default cases
in switches over types and instructions. This makes future feature
additions easier by making the compiler complain about each location
where new types and instructions are not yet handled.
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Fixes #1649
This moves us to a single object for functions, which can be imported or nor, and likewise for globals (as a result, GetGlobals do not need to check if the global is imported or not, etc.). All imported things now inherit from Importable, which has the module and base of the import, and if they are set then it is an import.
For convenient iteration, there are a few helpers like
ModuleUtils::iterDefinedGlobals(wasm, [&](Global* global) {
.. use global ..
});
as often iteration only cares about imported or defined (non-imported) things.
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This now makes --generate-stack-ir --print-stack-ir emit a fully valid .wat wasm file, in stacky format.
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* replace assert with a proper trap for an invalid offset in table initialization
* fix offset handling in initial table size computation: it is an unsigned value
* handle traps in fuzz-exec when creating instance
* optimization may remove imports - and imported table init may trap, so opts may remove that trap. check for result comparisons in the right order, so we don't get bothered by that
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* rename WasmType to Type. it's in the wasm:: namespace anyhow, and without Wasm- it fits in better alongside Index, Address, Expression, Module, etc.
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Recent versions of clang turn on -Wdelete-non-virtual-dtor at our warning
level, which fires when deleting a non-final class that has virtual functions
but a non-virtual destructor. Pre-C++11 standard rule of thumb is to just always
have a virtual destructor if there are virtual functions, but C++11 final is
even better since it may allow for devirtualization optimizations.
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Use Fatal() rather than stdout or report callImport error
Without this the write to stdout can be lost (Since the following line
aborts)
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Add wasm-ctor-eval, which evaluates functions at compile time - typically static constructor functions - and applies their effects into memory, saving work at startup. If we encounter something we can't evaluate at compile time in our interpreter, stop there.
This is similar to ctor_evaller.py in emscripten (which was for asm.js).
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* Move WasmType function implementations to wasm.cpp
* Move Literal methods to wasm.cpp
* Reorder wasm.cpp shared constants back to top
* Move expression functions to wasm.cpp
* Finish moving things to wasm.cpp
* Split out Literal into its own .h/.cpp. Also factor out common wasm-type module
* Remove unneeded/transitive includes from wasm.h
* Add comment to try/check methods
* Rename tryX/checkX methods to getXOrNull
* Add missing include that should fix appveyor build breakage
* More appveyor
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* Fully handle EM_ASM in s2wasm
* Iterate with size_ts, remember to erase from importsMap as well
* Fix dot_s test EM_ASM signatures
* Move Name out to its own file, support/name.h
* Move removeImportsWithSubstring out of Module class
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standalone and full funtime execution
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We've been using size_t (and other things) for addresses, which is
generally wrong because it depends on the host, when it should in fact
depend on the target. This is a partial fix for #278 (i.e. it's the
right fix, I don't think it's applied quite everywhere yet).
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Instead of doing all of the S2Wasm work in the constructor, split
construction, scanning (to determine implemented functions) and building
of the wasm module.
This allows the linker to get the symbol information (e.g. implemented
functions) without having to build an entire module (which will be
useful for archives) and to allow the linker to link a new object into
the existing one by building the wasm module in place on the existing
module.
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