| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| ... | |
| |
|
|
|
|
|
|
|
| |
This is a (more) standard name for `array.init_static`. (The full upstream name
in the spec repo is `array.new_canon_fixed`, but I'm still hoping we can drop
`canon` from all the instruction names and it doesn't appear elsewhere in
Binaryen).
Update all the existing tests to use the new name and add a test specifically to
ensure the old name continues parsing.
|
| |
|
|
|
|
|
|
| |
To match the standard instruction name, rename the expression class without
changing any parsing or printing behavior. A follow-on PR will take care of the
functional side of this change while keeping support for parsing the old name.
This change will allow `ArrayInit` to be used as the expression class for the
upcoming `array.init_data` and `array.init_elem` instructions.
|
| |
|
| |
See WebAssembly/stringref#60
|
| |
|
|
| |
It did not have proper annotation for the safety field, and also
it could not handle basic heap types.
|
| |
|
|
|
|
| |
string.from_code_point makes a string from an int code point.
string.new_utf8*_try makes a utf8 string and returns null on a UTF8 encoding
error rather than trap.
|
| |
|
| |
See WebAssembly/stringref#58
|
| |
|
|
|
|
| |
`struct` has replaced `data` in the upstream spec, so update Binaryen's types to
match. We had already supported `struct` as an alias for data, but now remove
support for `data` entirely. Also remove instructions like `ref.is_data` that
are deprecated and do not make sense without a `data` type.
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
These operations are deprecated and directly representable as casts, so remove
their opcodes in the internal IR and parse them as casts instead. For now, add
logic to the printing and binary writing of RefCast to continue emitting the
legacy instructions to minimize test changes. The few test changes necessary are
because it is no longer valid to perform a ref.as_func on values outside the
func type hierarchy now that ref.as_func is subject to the ref.cast validation
rules.
RefAsExternInternalize, RefAsExternExternalize, and RefAsNonNull are left
unmodified. A future PR may remove RefAsNonNull as well, since it is also
expressible with casts.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
* Replace `RefIs` with `RefIsNull`
The other `ref.is*` instructions are deprecated and expressible in terms of
`ref.test`. Update binary and text parsing to parse those instructions as
`RefTest` expressions. Also update the printing and emitting of `RefTest`
expressions to emit the legacy instructions for now to minimize test changes and
make this a mostly non-functional change. Since `ref.is_null` is the only
`RefIs` instruction left, remove the `RefIsOp` field and rename the expression
class to `RefIsNull`.
The few test changes are due to the fact that `ref.is*` instructions are now
subject to `ref.test` validation, and in particular it is no longer valid to
perform a `ref.is_func` on a value outside of the `func` type hierarchy.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The `br_on{_non}_{data,i31,func}` operations are deprecated and directly
representable in terms of the new `br_on_cast` and `br_on_cast_fail`
instructions, so remove their dedicated IR opcodes in favor of representing them
as casts. `br_on_null` and `br_on_non_null` cannot be consolidated the same way
because their behavior is not directly representable in terms of `br_on_cast`
and `br_on_cast_fail`; when the cast to null bottom type succeeds, the null
check instructions implicitly drop the null value whereas the cast instructions
would propagate it.
Add special logic to the binary writer and printer to continue emitting the
deprecated instructions for now. This will allow us to update the test suite in
a separate future PR with no additional functional changes.
Some tests are updated because the validator no longer allows passing non-func
data to `br_on_func`. Doing so has not made sense since we separated the three
reference type hierarchies.
|
| |
|
|
|
|
|
|
|
| |
As well as br_on_cast_fail null. Unlike the existing br_on_cast* instructions,
these new instructions treat the cast as succeeding when the input is a null.
Update the internal representation of the cast type in `BrOn` expressions to be
a `Type` rather than a `HeapType` so it will include nullability information.
Also update and improve `RemoveUnusedBrs` to handle the new instructions
correctly and optimize in more cases.
|
| |
|
| |
This new variant of ref.test returns 1 if the input is null.
|
| |
|
|
|
|
|
|
|
| |
The latest upstream version of ref.cast is parameterized with a target reference
type, not just a heap type, because the nullability of the result is
parameterizable. As a first step toward implementing these new, more flexible
ref.cast instructions, change the internal representation of ref.cast to use the
expression type as the cast target rather than storing a separate heap type
field. For now require that the encoded semantics match the previously allowed
semantics, though, so that none of the optimization passes need to be updated.
|
| |
|
|
|
|
|
|
|
|
|
|
| |
We switched from emitting the legacy `ref.cast_static` instruction to emitting
`ref.cast null` in #5331, but that wasn't quite correct. The legacy instruction
had polymorphic typing so that its output type was nullable if and only if its
input type was nullable. In contrast, `ref.cast null` always has a a nullable
output type.
Fix our output by instead emitting non-nullable `ref.cast` if the output should
be non-nullable. Parse `ref.cast` in binary and text forms as well. Since the IR
can only represent the legacy polymorphic semantics, disallow unsupported casts
from nullable to non-nullable references or vice versa for now.
|
| |
|
|
|
|
|
| |
The standard casting instructions now allow casting to basic heap types, not
just user-defined types, but they also require that the intended type and
argument type have a common supertype. Update the validator to use the standard
rules, update the binary parser and printer to allow basic types, and update the
tests to remove or modify newly invalid test cases.
|
| |
|
|
|
|
|
| |
We previously supported only the non-standard cast instructions introduced when
we were experimenting with nominal types. Parse the names and opcodes of their
standard counterparts and switch to emitting the standard names and opcodes.
Port all of the tests to use the standard instructions, but add additional tests
showing that the non-standard versions are still parsed correctly.
|
| |
|
|
|
|
|
|
|
| |
In order to test them, fix the binary and text parsers to accept passive data
segments even if a module has no memory. In addition to parsing and emitting the
new instructions, also implement their validation and interpretation. Test the
interpretation directly with wasm-shell tests adapted from the upstream spec
tests. Running the upstream spec tests directly would require fixing too many
bugs in the legacy text parser, so it will have to wait for the new text parser
to be ready.
|
| |
|
| |
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`.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
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.
|
| |
|
|
|
|
|
| |
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.
|
| |
|
|
| |
(#5038)
|
| |
|
|
| |
These new GC instructions infallibly convert between `extern` and `any`
references now that those types are not in the same hierarchy.
|
| |
|
|
|
|
|
| |
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.
|
| |
|
|
|
|
|
| |
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.
|
| | |
|
| |
|
|
|
|
|
|
|
| |
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.
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
| |
Grouping all references together makes it easier for baseline compilers to
zero out memory (as the zeroing out may be different for MVP types vs.
references).
This puts all references together, either at the start or the end. As a
heuristic for that we see if the first local is a reference. As the optimizer
will sort locals by frequency, this ensures that the most-frequent local
stays in index 0.
Fixes #4773. See more details there
|
| | |
|
| |
|
|
|
| |
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.
|
| |
|
|
|
| |
Update the opcodes for all relaxed SIMD instructions and remove the unsigned dot
product instructions that are no longer in the proposal.
|
| |
|
|
|
|
| |
This unsafe experimental instruction is semantically equivalent to
ref.cast_static, but V8 will unsafely turn it into a nop. This is meant to help
us measure cast overhead more precisely than we can by globally turning all
casts into nops.
|
| |
|
|
|
|
| |
Remove `Type::externref` and `HeapType::ext` and replace them with uses of
anyref and any, respectively, now that we have unified these types in the GC
proposal. For backwards compatibility, continue to parse `extern` and
`externref` and maintain their relevant C API functions.
|
| |
|
| |
As proposed in https://github.com/WebAssembly/relaxed-simd/issues/52.
|
| |
|
|
| |
Other opcode ends with `Inxm` or `Fnxm` (where n and m are integers),
while `i8x16.swizzle`'s opcode name doesn't have an `I` in there.
|
| |
|
| |
As proposed in https://github.com/WebAssembly/relaxed-simd/issues/40.
|
