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anyref future semantics were changed to only represent opaque host values, and thus renamed to externref.
[Chromium](https://bugs.chromium.org/p/v8/issues/detail?id=7748#c360) was just updated to today (not yet released). I couldn't find a Mozilla bugzilla ticket mentioning externref so I don't immediately know if they've updated yet.
https://github.com/WebAssembly/reference-types/pull/87
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It looks like these were only uses as part of the vanilla tests
which were removed back in #2482.
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fail_if_not_identical_to_file() (#2649)
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This reverts commit 132daae1e9154782bb1afa5df80dfe7ea35f0369.
This change is the same as before but the fix in #2619 should now make it safe.
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Track the beginning and end of each function, both when reading
and writing.
We track expressions and functions separately, instead of having a single
big map of (oldAddr) => (newAddr) because of the potentially ambiguous case
of the final expression in a function: it's end might be identical in offset
to the end of the function. So we have two different things that map to the
same offset. However, if the context is "the end of the function" then the
updated address is the new end of the function, even if the function ends
with a different instruction now, as the old last instruction might have
moved or been optimized out. Concretely, we have getNewExprAddr
and getNewFuncAddr, so we can ask to update the location of either
an expression or a function, and use that contextual information.
This checks for the DIE tag in order to know what we are looking for.
To be safe, if we hit an unknown tag, we halt, so that we don't silently
miss things.
As the test updates show, the new things we can do thanks to this
PR are to update compile unit and subprogram low_pc locations.
Note btw that in the first test (dwarfdump_roundtrip_dwarfdump.bin.txt)
we change 5 to 0: that is correct since that test does not write out
DWARF (it intentionally has no -g), so we do not track binary
locations while writing, and so we have nothing to update to (the
other tests show actual updating).
Also fix the order in the python test runner code to show a diff
of expected to encountered, and not the reverse, which confused
me.
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Binaryen.js now uses binaryen (was Binaryen) as its global
name to align with the npm package. Also fixes issues with
emitting and testing both the JS and Wasm builds.
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(#2542)" (#2576)
This reverts commit f62e171c38bea14302f9b79f7941a248ea704425.
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* Reland "Fix renaming in FixInvokeFunctionNamesWalker (#2513)"
In the previous iteration of this change we were not calling
`renameFunctions` for each of the functions we removed.
The problem manifested itself when we rename the imported function to
`emscripten_longjmp_jmpbuf` to `emscripten_longjmp`. In this case the
import of `emscripten_longjmp` already exists so we remove the import of
`emscripten_longjmp_jmpbuf` but we were not correclty calling
renameFunctions to handle the rename of all the uses.
Add an additional test case to cover the failures that we saw on the
emscripten tree.
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This PR enables compiling Binaryen to WebAssembly when building binaryen.js. Since WebAssembly is best compiled and instantiated asynchronously in browsers, it also adds a new mechanism to tell if respectively when the module is ready by means of one of the following:
// Using a promise
const binaryen = require("binaryen");
binaryen.ready.then(() => {
... use normally ...
});
// Using await
const binaryen = require("binaryen");
(async () => {
await binaryen.ready;
... use normally ...
})();
// Where top-level await is available
const binaryen = await require("binaryen").ready;
... use normally ...
One can also tell if Binaryen is already ready (for example when assuming it in follow-up code) by:
if (/* we already know that */ binaryen.isReady) {
... use normally ...
} else {
throw Error("Binaryen is supposed to be ready here but isn't");
}
The JS test cases have been updated accordingly by wrapping everything in a test function and invoking it once ready. Documentation will have to be updated as well to cover this of course. New file size is about 2.5mb, even though the Wasm becomes inlined into the JS file which makes distribution across different environments a lot easier.
Also makes building binaryen (to either js or wasm) emit binaryen.js, and not binaryen_js.js etc.
Supersedes and thus fixes #1381
With .ready it also fixes #2452
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This reverts commit f0a2e2c75c7bb3008f10b6edbb8dc4cfd27b7d28.
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This fixes https://github.com/emscripten-core/emscripten/issues/9950.
The issue only shows up when debug names are not present so most of
the changes in CL come from disabling debug names in the lld tests.
We want to make sure that wasm-emscripten-finalize runs fine without
debug names so I think it makes most sense to test in this mode.
The actual bugfix is in wasm-emscripten.cpp as part of the
FixInvokeFunctionNamesWalker. The problem was the name of the function
rather than is import name was being added to importRenames. This means
that when debug names were present (and the two names were the same)
we didn't see the bug.
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(#2508)
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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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This makes auto_update_tests.py update spec test outputs (ones that are
printed with `spectest.print` import) and extracts spec tests blacklist
into shared.py with comments for reasons why each of them fails.
Also deletes if-label-scope.fail.wast.log because it does not seem to
match with any of existing tests.
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This makes test scripts simpler by reducing loop depths and extracting
repeating code into methods or variables.
- `get_tests` returns a list of tests with specified extensions. This
includes files with a full path rather than just file names.
- Reduces loop depths by using early exits and `get_tests`.
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renamed (#2382)
Fixes https://github.com/WebAssembly/binaryen/issues/2180
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This allows fuzzing in parallel invocations.
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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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pep8 specifies 4 space indentation. The use of 2 spaces is, I believe
a historical anomaly where certain large organizations such as google
chose 2 over 4 and have yet to make the switch.
Since there isn't too much code in binaryen today it seems reasonable to
make the switch.
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I fixed flatten.bin.txt which seems to have just had some corrupted data, and I removed some fancy unicode from the spec comments tests, which I'm not sure it's important enough to figure out how to fix.
Fixes #1691
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Update build-js.sh to output to `out` directory. This is district
from the `bin` directory which is used by the cmake build and may or
may not live in the source tree. The `out` directory currently always
lives in the source tree.
As a followup change I hope to additionally move all test outout into
this tree.
See #2104
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Also test in pass-debug mode, for better coverage.
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This reverts commit cb2d63586c08a3dd194d2b733ceb3f5051c081f8.
The issues with feature validation were mostly resolved in #1993, and
this PR finishes the job by adding feature flags to wasm-as to avoid
emitting the DataCount section when bulk-memory is not enabled.
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In the absence of the target features section or command line flags. When there are command line flags, it is an error if they do not exactly match the target features section, except if --detect-features has been provided.
Also adds a --print-features pass to print the command line flags for all enabled options and uses it to make the feature tests more rigorous.
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This allows us to emit a (potentially modified) target features
section and conditionally emit other sections such as the DataCount
section based on the presence of features.
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It is not very useful.
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unittest is Python's standard testing framework, so this change allows
arbitrary tests to be written without introducing any new dependencies
or code in check.py. A new test that was not possible to write before
is also included. It is the first of many.
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This allows me to run tests on a system where the default
installed node is not recent enough.
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* Rename the `wasm2asm` tool to `wasm2js`
This commit performs a relatively simple rename of the `wasm2asm` tool to
`wasm2js`. The functionality of the tool doesn't change just yet but it's
intended that we'll start generating an ES module instead of just an `asm.js`
function soon.
* wasm2js: Support `*.wasm` input files
Previously `wasm2js` only supported `*.wast` files but to make it a bit easier
to use in tooling pipelines this commit adds support for reading in a `*.wasm`
file directly. Determining which parser to use depends on the input filename,
where the binary parser is used with `*.wasm` files and the wast parser is used
for all other files.
* wasm2js: Emit ESM imports/exports by default
This commit alters the default behavior of `wasm2js` to emit an ESM by default,
either importing items from the environment or exporting. Items like
initialization of memory are also handled here.
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Instead, we point users to the bot @dcodeIO has, see #1571
This is useful because otherwise every change to binaryen.js requires bundling a build here, which is more work for contributors (and also grows the git repo over time).
We still keep a bundled build of wasm.js. We use that for testing of the interpreter currently, and emscripten depends on it. Eventually wasm2asm may replace that. In any case, wasm.js builds are required far less frequently than binaryen.js.
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s2wasm is no longer used my emscripten and as far as I know now
as no other users.
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Fix some file reading & endline issues on windows platform.
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The wasm waterfall is moving away from testing with s2wasm
and s2wasm hopefully going to be removed soon.
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Remove executable bit and #! from scripts that don't have
entry point.
Add missing licence test.
Move arg parsing into a function.
Remove legacy --only_prepare (with underscrore) argument.
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Failing test cases often start out with:
```
incorrect output, diff:
--- expected
+++ actual
```
which makes it difficult to figure out where the expected output might
live. That information can be derived from examining the tests, of
course, but it'd be much nicer if it were provided in the diff to see
straightaway.
We do this by introducing a new check, one which takes a filename of
expected output, which then enables us to display the failing file,
e.g.:
```
incorrect output, diff:
--- /home/froydnj/src/binaryen.git/test/passes/code-folding.txt
+++ actual
```
which is arguably nicer. Having this new check also enables reducing
some boilerplate `open(...).read()` calls in various places.
There are still a few places using `fail_if_not_identical`, usually
because `.strip()` is used on the expected output.
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jsvu is an easy way to get JS VMs. This uses it to get SpiderMonkey, which is then used to check asm.js validation in the wasm2asm tests.
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* wasm-link-metadata: Use `__data_end` symbol.
* Add --global-base param to emscripten-wasm-finalize to compute staticBump properly
* Let ModuleWriter write to a provided Output object
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* Skeleton of a beginning of o2wasm, WIP and probably not going to be used
* Get building post-cherry-pick
* ast->ir, remove commented out code, include a debug module print because linking
* Read linking section, print emscripten metadata json
* WasmBinaryWriter emits user sections on Module
* Remove debugging prints, everything that isn't needed to build metadata
* Rename o2wasm to lld-metadata
* lld-metadata support for outputting to file
* Use tables index instead of function index for initializer functions
* Add lld-emscripten tool to add emscripten-runtime functions to wasm modules (built with lld)
* Handle EM_ASM in lld-emscripten
* Add a list of functions to forcibly export (for initializer functions)
* Disable incorrect initializer function reading
* Add error printing when parsing .o files in lld-metadata
* Remove ';; METADATA: ' prefix from lld-metadata, output is now standalone json
* Support em_asm consts that aren't at the start of a segment
* Initial test framework for lld-metadata tool
* Add em_asm test
* Add support for WASM_INIT_FUNCS in the linking section
* Remove reloc section parsing because it's unused
* lld-emscripten can read and write text
* Add test harness for lld-emscripten
* Export all functions for now
* Add missing lld test output
* Add support for reading object files differently
Only difference so far is in importing mutable globals being an object
file representation for symbols, but invalid wasm.
* Update help strings
* Update linking tests for stackAlloc fix
* Rename lld-emscripten,lld-metadata to wasm-emscripten-finalize,wasm-link-metadata
* Add help text to header comments
* auto& instead of auto &
* Extract LinkType to abi/wasm-object.h
* Remove special handling for wasm object file reading, allow mutable globals
* Add braces around default switch case
* Fix flake8 errors
* Handle generating dyncall thunks for imports as well
* Use explicit bool for stackPointerGlobal
* Use glob patterns for lld file iteration
* Use __wasm_call_ctors for all initializer functions
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This adds a new tool for better dead code elimination. The problem this helps overcome is when the wasm module is part of something larger, like a wasm+JS combination, and therefore doing DCE in either one is not sufficient as it can't remove a cycle spanning the wasm and JS worlds. Concretely, when binaryen performs DCE by itself, it can never remove an export, because it considers those roots - but in the larger ("meta") space outside, they may actually be removable.
To solve that, this tool receives a description of the outside graph (in very abstract form), including which nodes are roots. It then adds to that graph nodes from the wasm, so that we have a single graph representing the entire space (the outside + wasm + connections between them). It then performs DCE, finding what is not reachable from the roots, and cleaning it up from the wasm. It of course can't clean up things from the outside, since all it has is the abstract representation of those things in the graph, but it prints out the ids of the removable nodes, which an outside tool can use.
This tool is written in as general a way as possible, hopefully it can have multiple uses. The use I have in mind is to write something in emscripten that uses this to DCE the JS+wasm combination that we emit.
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* fix wasm-reduce when out-of-tree: do not use a hardcoded bin/wasm-opt, instead add a Path namespace with utilities to get the proper path, and use BINARYEN_ROOT which our test setup code ensures
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flake8 starts warning on bare "except:" in python scripts, and all CI job is failing for that.
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Reduce an interesting wasm to a smaller still interesting wasm. This takes an arbitrary command to run, and reduces the wasm as much as it can while keeping the behavior of that command fixed. This can be used to reduce compiler bugs in an arbitrary VM, etc.
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This means you can do `rm -rf test/wasm-install` and have
it get redownloaded.
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Also, fix -l and -rpath lib directories so that it can be
run out-of-tree
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