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* Make local.tee's type its local's type (#2511)Heejin Ahn2019-12-122-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the current spec, `local.tee`'s return type should be the same as its local's type. (Discussions on whether we should change this rule is going on in WebAssembly/reference-types#55, but here I will assume this spec does not change. If this changes, we should change many parts of Binaryen transformation anyway...) But currently in Binaryen `local.tee`'s type is computed from its value's type. This didn't make any difference in the MVP, but after we have subtype relationship in #2451, this can become a problem. For example: ``` (func $test (result funcref) (local $0 anyref) (local.tee $0 (ref.func $test) ) ) ``` This shouldn't validate in the spec, but this will pass Binaryen validation with the current `local.tee` implementation. This makes `local.tee`'s type computed from the local's type, and makes `LocalSet::makeTee` get a type parameter, to which we should pass the its corresponding local's type. We don't embed the local type in the class `LocalSet` because it may increase memory size. This also fixes the type of `local.get` to be the local type where `local.get` and `local.set` pair is created from `local.tee`.
* Remove FunctionType (#2510)Thomas Lively2019-12-118-73/+73
| | | | | | | | | | | | | | | | | 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.
* Add a RoundTrip pass (#2516)Alon Zakai2019-12-091-2/+16
| | | | | | This pass writes and reads the module. This shows the effects of converting to and back from the binary format, and will be useful in testing dwarf debug support (where we'll need to see that writing and reading a module preserves debug info properly).
* Add string parameter to WASM_UNREACHABLE (#2499)Sam Clegg2019-12-056-26/+26
| | | | | This works more like llvm's unreachable handler in that is preserves information even in release builds.
* Add BYN_ENABLE_ASSERTSION option to allow assertions to be disabled. (#2500)Sam Clegg2019-12-041-2/+2
| | | | | | | | We always enable assertions by default, but this options allows for a build without them. Fix all errors in the ASSERTIONS=OFF build, even though we don't normally build this its good to keep it building.
* Remove 'none' type as a branch target in ReFinalize (#2492)Alon Zakai2019-12-043-80/+3
| | | | | | | | | | | | | | | | | That was needed for super-old wasm type system, where we allowed (block $x (br_if $x (unreachable) (nop) ) ) That is, we differentiated "taken" branches from "named" ones (just referred to by name, but not actually taken as it's in unreachable code). We don't need to differentiate those any more. Remove the ReFinalize code that considered it, and also remove the named/taken distinction in other places.
* cmake: Convert to using lowercase for and functions/macros (#2495)Sam Clegg2019-12-041-2/+2
| | | This is line with modern cmake conventions is much less SHOUTY!
* Collect all object files from the object libraries in a CMake variable (#2477)Immanuel Haffner2019-11-261-1/+1
| | | | | | | | | using the `$<TARGET_OBJECTS:objlib>` syntax. Use this variable when adding `libbinaryen` as static or shared library. Additionally, use the variable with the object files to simplify the `TARGET_LINK_LIBRARIES` commands: add the object libraries to the sources of executables and drop the use of our libraries in `TARGET_LINK_LIBRARIES`. (Object libraries cannot be linked but must be used as sources. See https://cmake.org/pipermail/cmake/2018-June/067721.html)
* Refactor and optimize binary writing type collection (#2478)Alon Zakai2019-11-261-32/+67
| | | | | | | | | | Create a new ParallelFunctionAnalysis helper, which lets us run in parallel on all functions and collect info from them, without manually handling locks etc. Use that in the binary writing code's type collection logic, avoiding a lock for each type increment. Also add Signature printing which was useful to debug this.
* Revert "Build libbinaryen as a monolithic statically/shared library (#2463)" ↵Alon Zakai2019-11-251-1/+1
| | | | | (#2474) This reverts commit bf8f36c31c0b8e6213bce840be66937dd6d0f6af.
* Remove FunctionType from Event (#2466)Thomas Lively2019-11-255-48/+21
| | | | | | | | | This is the start of a larger refactoring to remove FunctionType entirely and store types and signatures directly on the entities that use them. This PR updates BrOnExn and Events to remove their use of FunctionType and makes the BinaryWriter traverse the module and collect types rather than using the global FunctionType list. While we are collecting types, we also sort them by frequency as an optimization. Remaining uses of FunctionType in Function, CallIndirect, and parsing will be removed in a future PR.
* Build libbinaryen as a monolithic statically/shared library (#2463)Immanuel Haffner2019-11-221-1/+1
| | | | | | | | | | | | * Transform libraries created in subdirectories from statically linked libraries to CMake object libraries. * Link object libraries as `PRIVATE` to `libbinaryen`. According to CMake documentation: "Libraries and targets following PRIVATE are linked to, but are not made part of the link interface." This is exactly what we want, as we only want the C API to be part of the interface.
* Multivalue type creation and inspection (#2459)Thomas Lively2019-11-226-17/+17
| | | | | | | | | | | | | Adds the ability to create multivalue types from vectors of concrete value types. All types are transparently interned, so their representation is still a single uint32_t. Types can be extracted into vectors of their component parts, and all the single value types expand into vectors containing themselves. Multivalue types are not yet used in the IR, but their creation and inspection functionality is exposed and tested in the C and JS APIs. Also makes common type predicates methods of Type and improves the ergonomics of type printing.
* Add a pass to inline __original_main() into main() (#2461)Alon Zakai2019-11-211-2/+4
| | | | | | | | | | | | | | | | | | clang/llvm introduce __original_main as a workaround for the fact that main may have different signatures. A downside to that is that users get it in stack traces, which is confusing. In -O2 and above we normally inline __original_main anyhow, but as this is for debugging, non-optimized builds matter too, so add a pass for this. The implementation is trivial, just call doInling. However we must check some corner cases first. Bonus minor fixes to FindAllPointers, which unnecessarily created an object to get the class Id (which is not valid for all classes), and that it didn't take the input by reference properly, which meant we couldn't get the pointer to the function body's toplevel.
* Refactor a CallGraphPropertyAnalysis helper [NFC] (#2441)Alon Zakai2019-11-181-20/+70
| | | | | | | | | | | This moves code out of Asyncify into a general helper class. The class automates scanning the functions for a property, then propagating it to functions that call them. In Asyncify, the property is "may call something that leads to sleep", and we propagate backwards to callers, to find all those that may sleep. This will be useful in a future exceptions-optimizing pass I want to write, where the property will be "may throw". We will then be able to remove exceptions overhead in cases that definitely do not throw.
* Add i32x4.dot_i16x8_s (#2420)Thomas Lively2019-11-041-0/+3
| | | | | This experimental instruction is specified in https://github.com/WebAssembly/simd/pull/127 and is being implemented to enable further investigation of its performance impact.
* Add SIMD integer min and max instructions (#2416)Thomas Lively2019-11-011-0/+36
| | | As proposed in https://github.com/WebAssembly/simd/pull/27.
* Add EH support for DCE pass (#2415)Heejin Ahn2019-11-011-0/+15
| | | | Like an `If`, `Try` construct is reachable when either its try body or catch body is reachable. This adds support for that.
* v8x16.swizzle (#2368)Thomas Lively2019-10-031-0/+3
| | | | As specified at https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#swizzling-using-variable-indices.
* Apply the sbrk/brk value at compile time (#2366)Alon Zakai2019-09-301-2/+16
| | | | | We've had an option to set the location of the sbrk ptr, but not the value. Applying the value as well is necessary for standalone wasm, as otherwise we set it in JS.
* v128.andnot instruction (#2355)Thomas Lively2019-09-241-0/+3
| | | | | As specified at https://github.com/WebAssembly/simd/pull/102. Also fixes bugs in the JS API for other SIMD bitwise operators.
* vNxM.load_splat instructions (#2350)Thomas Lively2019-09-235-0/+18
| | | | | | | Introduces a new instruction class, `SIMDLoad`. Implements encoding, decoding, parsing, printing, and interpretation of the load and splat instructions, including in the C and JS APIs. `v128.load` remains in the `Load` instruction class for now because the interpreter code expects a `Load` to be able to load any memory value type.
* SIMD narrowing and widening operations (#2341)Thomas Lively2019-09-141-0/+20
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* QFMA/QFMS instructions (#2328)Thomas Lively2019-09-035-8/+8
| | | | | | | | | Renames the SIMDBitselect class to SIMDTernary and adds the new {f32x4,f64x2}.qfm{a,s} ternary instructions. Because the SIMDBitselect class is no more, this is a backwards-incompatible change to the C interface. The new instructions are not yet used in the fuzzer because they are not yet implemented in V8. The corresponding LLVM commit is https://reviews.llvm.org/rL370556.
* Add atomic.fence instruction (#2307)Heejin Ahn2019-08-275-1/+15
| | | | | | | This adds `atomic.fence` instruction: https://github.com/WebAssembly/threads/blob/master/proposals/threads/Overview.md#fence-operator This also fix bugs in `atomic.wait` and `atomic.notify` instructions in binaryen.js and adds tests for them.
* Add initial support for anyref as an opaque type (#2294)Jay Phelps2019-08-201-0/+2
| | | | | | | | | | | | | 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.
* Add basic exception handling support (#2282)Heejin Ahn2019-08-137-11/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds basic support for exception handling instructions, according to the spec: https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md This PR includes support for: - Binary reading/writing - Wast reading/writing - Stack IR - Validation - binaryen.js + C API - Few IR routines: branch-utils, type-updating, etc - Few passes: just enough to make `wasm-opt -O` pass - Tests This PR does not include support for many optimization passes, fuzzer, or interpreter. They will be follow-up PRs. Try-catch construct is modeled in Binaryen IR in a similar manner to that of if-else: each of try body and catch body will contain a block, which can be omitted if there is only a single instruction. This block will not be emitted in wast or binary, as in if-else. As in if-else, `class Try` contains two expressions each for try body and catch body, and `catch` is not modeled as an instruction. `exnref` value pushed by `catch` is get by `pop` instruction. `br_on_exn` is special: it returns different types of values when taken and not taken. We make `exnref`, the type `br_on_exn` pushes if not taken, as `br_on_exn`'s type.
* Add missing copy in Copier::visitPush (#2295)Heejin Ahn2019-08-111-1/+3
| | | It seems this was missing in #2289.
* Copying fixes (#2289)Alon Zakai2019-08-071-2/+4
| | | | | We didn't have an OverriddenVisitor in the copying code, and sadly unimplemented visitors just return null. That explains the crash in #2288 The missing visitors were push and pop.
* Finalize tail call support (#2246)Thomas Lively2019-07-233-4/+17
| | | | Adds tail call support to fuzzer and makes small changes to handle return calls in multiple utilities and passes. Makes larger changes to DAE and inlining passes to properly handle tail calls.
* Re-land #2235 with fixes (#2245)Thomas Lively2019-07-201-0/+5
| | | | #2242 had exposed the bug that the `Trapper` pass was defining `walkFunction` when it should have been defining `doWalkFunction`.
* Revert "Remove bulk memory instructions refering to active segments (#2235)" ↵Thomas Lively2019-07-191-5/+0
| | | | | (#2244) This reverts commit 72c52ea7d4eb61b95cf8a5164947cb760fe42e9c, which was causing test failures after it merged.
* Remove bulk memory instructions refering to active segments (#2235)Thomas Lively2019-07-191-0/+5
| | | | This prevents those instructions from becoming invalid due to memory packing optimizations and is also a code size win. Fixes #2227.
* Simpify PassRunner.add() and automatically parallelize parallel functions ↵Alon Zakai2019-07-192-7/+2
| | | | | | | | | (#2242) Main change here is in pass.h, everything else is changes to work with the new API. The add("name") remains as before, while the weird variadic add(..) which constructed the pass now just gets a std::unique_ptr of a pass. This also makes the memory management internally fully automatic. And it makes it trivial to parallelize WalkerPass::run on parallel passes. As a benefit, this allows removing a lot of code since in many cases there is no need to create a new pass runner, and running a pass can be just a single line.
* Rename except_ref type to exnref (#2224)Heejin Ahn2019-07-141-2/+2
| | | | In WebAssembly/exception-handling#79 we agreed to rename `except_ref` type to `exnref`.
* Minimal Push/Pop support (#2207)Alon Zakai2019-07-034-0/+10
| | | | | | | This is the first stage of adding support for stacky/multivaluey things. It adds new push/pop instructions, and so far just shows that they can be read and written, and that the optimizer doesn't do anything immediately wrong on them. No fuzzer support, since there isn't a "correct" way to use these yet. The current test shows some "incorrect" usages of them, which is nice to see that we can parse/emit them, but we should replace them with proper usages of push/pop once we actually have those (see comments in the tests). This should be enough to unblock exceptions (which needs a pop in try-catches). It is also a step towards multivalue (I added some docs about that), but most of multivalue is left to be done.
* Bysyncify: async transform for wasm (#2172)Alon Zakai2019-06-152-2/+59
| | | | | | | | | This adds a new pass, Bysyncify, which transforms code to allow unwind and rewinding the call stack and local state. This allows things like coroutines, turning synchronous code asynchronous, etc. The new pass file itself has a large comment on top with docs. So far the tests here seem to show this works, but this hasn't been tested heavily yet. My next step is to hook this up to emscripten as a replacement for asyncify/emterpreter, see emscripten-core/emscripten#8561 Note that this is completely usable by itself, so it could be useful for any language that needs coroutines etc., and not just ones using LLVM and/or emscripten. See docs on the ABI in the pass source.
* Copy debug info when inlining (#2168)Alon Zakai2019-06-071-0/+59
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* Use splatted zero vector in makeZero (#2164)Thomas Lively2019-06-051-0/+8
| | | | | This prevents the optimizer from producing v128.const instructions, which are not supported by V8 at this time.
* Use BinaryIndexes instead of copies in BinaryWriter (NFC) (#2161)Heejin Ahn2019-06-041-1/+0
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* Add event section (#2151)Heejin Ahn2019-05-314-1/+71
| | | | | | | | | | | | | | | | | | This adds support for the event and the event section, as specified in https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md#changes-to-the-binary-model. Wasm events are features that suspend the current execution and transfer the control flow to a corresponding handler. Currently the only supported event kind is exceptions. For events, this includes support for - Binary file reading/writing - Wast file reading/writing - Binaryen.js API - Fuzzer - Validation - Metadce - Passes: metrics, minify-imports-and-exports, remove-unused-module-elements
* Reflect instruction renaming in code (#2128)Heejin Ahn2019-05-2113-80/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Reflected new renamed instruction names in code and tests: - `get_local` -> `local.get` - `set_local` -> `local.set` - `tee_local` -> `local.tee` - `get_global` -> `global.get` - `set_global` -> `global.set` - `current_memory` -> `memory.size` - `grow_memory` -> `memory.grow` - Removed APIs related to old instruction names in Binaryen.js and added APIs with new names if they are missing. - Renamed `typedef SortedVector LocalSet` to `SetsOfLocals` to prevent name clashes. - Resolved several TODO renaming items in wasm-binary.h: - `TableSwitch` -> `BrTable` - `I32ConvertI64` -> `I32WrapI64` - `I64STruncI32` -> `I64SExtendI32` - `I64UTruncI32` -> `I64UExtendI32` - `F32ConvertF64` -> `F32DemoteI64` - `F64ConvertF32` -> `F64PromoteF32` - Renamed `BinaryenGetFeatures` and `BinaryenSetFeatures` to `BinaryenModuleGetFeatures` and `BinaryenModuleSetFeatures` for consistency.
* Add except_ref type (#2081)Heejin Ahn2019-05-071-0/+2
| | | | This adds except_ref type, which is a part of the exception handling proposal.
* clang-tidy braces changes (#2075)Alon Zakai2019-05-0116-97/+192
| | | 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.
* Apply format changes from #2048 (#2059)Alon Zakai2019-04-2634-1093/+1507
| | | 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
* wasm2js2: optimize call_indirect and select operands (#2056)Alon Zakai2019-04-251-7/+7
| | | Don't use temp vars to reorder them unless we need to.
* Verify flat IR where it is expected, and give a nice error (#2009)Alon Zakai2019-04-161-0/+120
| | | Fixes #2007 #2008
* Use a single table in wasm2js (#2005)Alon Zakai2019-04-151-0/+52
| | | | | This replaces the multiple asm.js tables (of power-of-2 size) with a single simple table. Also supports importing the table.
* Move features from passOptions to Module (#2001)Thomas Lively2019-04-122-69/+6
| | | | | 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.
* Bulk memory side effects (#1998)Thomas Lively2019-04-111-12/+40
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