| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
| |
Test that we can still parse the old annotated form as well.
|
| |
|
|
|
|
|
|
|
| |
`array` is the supertype of all defined array types and for now is a subtype of
`data`. (Once `data` becomes `struct` this will no longer be true.) Update the
binary and text parsing of `array.len` to ignore the obsolete type annotation
and update the binary emitting to emit a zero in place of the old type
annotation and the text printing to print an arbitrary heap type for the
annotation. A follow-on PR will add support for the newer unannotated version of
`array.len`.
|
| |
|
|
| |
If the only memories are imported, we don't need the section. We were already
doing that for tables, functions, etc.
|
| |
|
|
| |
Remove an obsolete error about null characters and test both binary and text
round tripping of a string constant containing an escaped zero byte.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
With the goal of supporting null characters (i.e. zero bytes) in strings.
Rewrite the underlying interned `IString` to store a `std::string_view` rather
than a `const char*`, reduce the number of map lookups necessary to intern a
string, and present a more immutable interface.
Most importantly, replace the `c_str()` method that returned a `const char*`
with a `toString()` method that returns a `std::string`. This new method can
correctly handle strings containing null characters. A `const char*` can still
be had by calling `data()` on the `std::string_view`, although this usage should
be discouraged.
This change is NFC in spirit, although not in practice. It does not intend to
support any particular new functionality, but it is probably now possible to use
strings containing null characters in at least some cases. At least one parser
bug is also incidentally fixed. Follow-on PRs will explicitly support and test
strings containing nulls for particular use cases.
The C API still uses `const char*` to represent strings. As strings containing
nulls become better supported by the rest of Binaryen, this will no longer be
sufficient. Updating the C and JS APIs to use pointer, length pairs is left as
future work.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
These types, `none`, `nofunc`, and `noextern` are uninhabited, so references to
them can only possibly be null. To simplify the IR and increase type precision,
introduce new invariants that all `ref.null` instructions must be typed with one
of these new bottom types and that `Literals` have a bottom type iff they
represent null values. These new invariants requires several additional changes.
First, it is now possible that the `ref` or `target` child of a `StructGet`,
`StructSet`, `ArrayGet`, `ArraySet`, or `CallRef` instruction has a bottom
reference type, so it is not possible to determine what heap type annotation to
emit in the binary or text formats. (The bottom types are not valid type
annotations since they do not have indices in the type section.)
To fix that problem, update the printer and binary emitter to emit unreachables
instead of the instruction with undetermined type annotation. This is a valid
transformation because the only possible value that could flow into those
instructions in that case is null, and all of those instructions trap on nulls.
That fix uncovered a latent bug in the binary parser in which new unreachables
within unreachable code were handled incorrectly. This bug was not previously
found by the fuzzer because we generally stop emitting code once we encounter an
instruction with type `unreachable`. Now, however, it is possible to emit an
`unreachable` for instructions that do not have type `unreachable` (but are
known to trap at runtime), so we will continue emitting code. See the new
test/lit/parse-double-unreachable.wast for details.
Update other miscellaneous code that creates `RefNull` expressions and null
`Literals` to maintain the new invariants as well.
|
| |
|
| |
Fixes emscripten-core/emscripten#17988
|
| |
|
|
|
|
|
| |
Emit call_ref instructions with type annotations and a temporary opcode. Also
implement support for parsing optional type annotations on call_ref in the text
and binary formats. This is part of a multi-part graceful update to switch
Binaryen and all of its users over to using the type-annotated version of
call_ref without there being any breakage.
|
| |
|
|
|
|
| |
The GC spec has been updated to have heap type annotations on call_ref and
return_call_ref. To avoid breaking users, we will have a graceful, multi-step
upgrade to the annotated version of call_ref, but since return_call_ref has no
users yet, update it in a single step.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
In practice typed function references will not ship before GC and is not
independently useful, so it's not necessary to have a separate feature for it.
Roll the functionality previously enabled by --enable-typed-function-references
into --enable-gc instead.
This also avoids a problem with the ongoing implementation of the new GC bottom
heap types. That change will make all ref.null instructions in Binaryen IR refer
to one of the bottom heap types. But since those bottom types are introduced in
GC, it's not valid to emit them in binaries unless unless GC is enabled. The fix
if only reference types is enabled is to emit (ref.null func) instead
of (ref.null nofunc), but that doesn't always work if typed function references
are enabled because a function type more specific than func may be required.
Getting rid of typed function references as a separate feature makes this a
nonissue.
|
| |
|
| |
Similar to #4969 but for data segments.
|
| |
|
| |
Similar to #4969 but for element segments.
|
| |
|
|
| |
These new GC instructions infallibly convert between `extern` and `any`
references now that those types are not in the same hierarchy.
|
| |
|
| |
Similar to #4969 but for memories.
|
| |
|
| |
Similar to #4969 but for globals.
|
| |
|
| |
Similar to #4969 but for tables.
|
| | |
|
| |
|
|
|
|
|
| |
Match the latest version of the GC spec. This change does not depend on V8
changing its interpretation of the shorthands because we are still temporarily
not emitting the binary shorthands, but all Binaryen users will have to update
their interpretations along with this change if they use the text or binary
shorthands.
|
| | |
|
| |
|
|
|
|
|
| |
We do a call to updateMaps() at the end of processNames anyhow, and so we
may as well call addFunction immediately (and the names will get fixed up in that
updateMaps later). The old code for some reason did that for function imports, but
not normal functions. It also stored them separately in temporary storage for some
unclear reason...
|
| |
|
| |
Adding multi-memories to the the list of wasm-features.
|
| |
|
|
|
|
| |
The wasm spec requires the order of local names in that section to be in
increasing order:
https://webassembly.github.io/spec/core/appendix/custom.html#binary-namemap
|
| |
|
|
| |
Due to missing test coverage, we missed in #4811 that some memory operations
needed to get make64() called on them.
|
| |
|
|
|
|
|
| |
The GC proposal has split `any` and `extern` back into two separate types, so
reintroduce `HeapType::ext` to represent `extern`. Before it was originally
removed in #4633, externref was a subtype of anyref, but now it is not. Now that
we have separate heaptype type hierarchies, make `HeapType::getLeastUpperBound`
fallible as well.
|
| |
|
|
|
|
|
| |
This PR removes the single memory restriction in IR, adding support for a single module to reference multiple memories. To support this change, a new memory name field was added to 13 memory instructions in order to identify the memory for the instruction.
It is a goal of this PR to maintain backwards compatibility with existing text and binary wasm modules, so memory indexes remain optional for memory instructions. Similarly, the JS API makes assumptions about which memory is intended when only one memory is present in the module. Another goal of this PR is that existing tests behavior be unaffected. That said, tests must now explicitly define a memory before invoking memory instructions or exporting a memory, and memory names are now printed for each memory instruction in the text format.
There remain quite a few places where a hardcoded reference to the first memory persist (memory flattening, for example, will return early if more than one memory is present in the module). Many of these call-sites, particularly within passes, will require us to rethink how the optimization works in a multi-memories world. Other call-sites may necessitate more invasive code restructuring to fully convert away from relying on a globally available, single memory pointer.
|
| |
|
|
|
|
|
| |
Reverts #4889
The spec is unclear on this, and that PR moved us to do what V8 does. But
it sounds like we should clarify the spec to do things the other way, so this
goes back to that.
|
| |
|
| |
Like the 8-bit array variants, it takes 3 parameters.
|
| |
|
|
|
|
|
| |
For now this index is always 0, but we must emit it.
Also clean up the wat test a little - we don't have validation yet, but we should
not validate without a memory in that file.
|
| |
|
|
|
|
| |
This starts to matter with strings, it turns out. This change should make us
runnable in v8.
Spec: https://github.com/WebAssembly/gc/blob/main/proposals/gc/MVP.md#instructions-1
|
| | |
|
| |
|
|
|
|
|
| |
RTTs were removed from the GC spec and if they are added back in in the future,
they will be heap types rather than value types as in our implementation.
Updating our implementation to have RTTs be heap types would have been more work
than deleting them for questionable benefit since we don't know how long it will
be before they are specced again.
|
| |
|
|
|
| |
It has been removed from the typed function references proposal, so we no longer
need to support it. Maintaining the test for `let` was difficult because
Binaryen could not emit either text or binary that actually used it.
|
| |
|
|
|
|
|
|
|
|
|
| |
* Changing ref maps in wasm-binary to use a value of a vector of Name*
* clang-format
* Update src/wasm/wasm-binary.cpp
Co-authored-by: Thomas Lively <7121787+tlively@users.noreply.github.com>
Co-authored-by: Thomas Lively <7121787+tlively@users.noreply.github.com>
|
| |
|
|
|
|
|
|
|
| |
Add support for emitting the string type reference shorthands, which had
previously been omitted accidentally due to the `default` case in that switch.
Also avoid emitting shorthands for non-nullable reference types as a first step
towards transitioning the shorthands to represent nullable types instead. Not
emitting these shorthands at all will give V8 the flexibility it needs to change
its interpretation of the shorthands without breaking any workflows using
Binaryen.
|
| | |
|
| |
|
|
|
|
|
|
|
| |
Basic reference types like `Type::funcref`, `Type::anyref`, etc. made it easy to
accidentally forget to handle reference types with the same basic HeapTypes but
the opposite nullability. In principle there is nothing special about the types
with shorthands except in the binary and text formats. Removing these shorthands
from the internal type representation by removing all basic reference types
makes some code more complicated locally, but simplifies code globally and
encourages properly handling both nullable and non-nullable reference types.
|
| | |
|
| |
|
|
| |
This measures the length of a view, so it seems simplest to make it a
sub-operation of the existing measure instruction.
|
| |
|
|
|
|
|
| |
Unfortunately one slice is the same as python [start:end], using 2 params,
and the other slice is one param, [CURR:CURR+num] (where CURR is implied
by the current state in the iter). So we can't use a single class here. Perhaps
a different name would be good, like slice vs substring (like JS does), but
I picked names to match the current spec.
|
| | |
|
| | |
|
| |
|
|
|
|
|
| |
This implements it as a StringMeasure opcode. They do have the same number of
operands, same trapping behavior, and same return type. They both get a string and
do some inspection of it to return an i32. Perhaps the name could be StringInspect
or something like that, rather than StringMeasure..? But I think for now this might be
good enough, and the spec may change anyhow later.
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
| |
This is more work than a typical instruction because it also adds a new section:
all the (string.const "foo") strings are put in a new "strings" section in the binary, and
the instructions refer to them by index.
|
| | |
|
| |
|
|
|
|
| |
This is the first instruction from the Strings proposal.
This includes everything but interpreter support.
|
| |
|
|
|
|
|
|
| |
This starts to implement the Wasm Strings proposal
https://github.com/WebAssembly/stringref/blob/main/proposals/stringref/Overview.md
This just adds the types.
|
