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* Make local.tee's type its local's type (#2511)Heejin Ahn2019-12-123-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Lively2019-12-1127-2937/+3263
| | | | | | | | | | | | | | | | | 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.
* Fix comparison of none and unreachable types (#2514)Heejin Ahn2019-12-091-2/+2
| | | | | | | | | | | | | | | | | | | Currently `none` and `unreachable` types are stored as the same empty `{}` in src/wasm/wasm-type.cpp. This makes `Type::operator<` incorrectly when given `none` and `unreachable`, because it expands both given types and lexicographically compare them, when both of the expanded vector will be empty. This was found by the fuzzer. This line in `Modder::visitExpression` tries to retrieve candidates of the same type. Because we can't really compare these two types, if you give `unreachable` as the key, candidates of `none` type can be returned. This generates incorrect code that ends up failing in validation in a very weird way. It was hard to generate a small testcase to trigger this part because it was found by generating fuzzed code from a random data file. But I guess this fix is pretty straightforward. Fixes #2512.
* Print only literal values when printing literals (#2469)Heejin Ahn2019-11-261-1/+1
| | | | | | | | | | | | | | | 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.
* Ensure example tests validate (#2470)Heejin Ahn2019-11-263-51/+58
| | | | | This makes sure example tests validate by adding missing `assert` on `BinaryenModuleValidate` calls and fixes existing errors in the example tests.
* Remove FunctionType from Event (#2466)Thomas Lively2019-11-254-23/+13
| | | | | | | | | 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.
* Multivalue type creation and inspection (#2459)Thomas Lively2019-11-224-405/+635
| | | | | | | | | | | | | 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.
* uint32_t instead of int64_t as return type for GetMemorySegmentByteOffset ↵COFFEETALES2019-11-122-19/+18
| | | | | (#2432) `uint32_t` instead of `int64_t` as return type for `GetMemorySegmentByteOffset` and minor fixes on tests.
* Add i32x4.dot_i16x8_s (#2420)Thomas Lively2019-11-043-229/+257
| | | | | 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 Lively2019-11-013-266/+604
| | | As proposed in https://github.com/WebAssembly/simd/pull/27.
* Ability to list each item on Exports/Data Segments/Functions (#2386)COFFEETALES2019-10-212-0/+75
| | | Adds functionality to the C API for getting the number of items in a module and fetching them out by index.
* Add offset parameter to BinaryenSetFunctionTable (#2380)Daniel Wirtz2019-10-112-6/+7
| | | | | | This PR adds an offset parameter to BinaryenSetFunctionTable so table elements can start at the value of an (imported constant) global. Previously, the offset was fixed to zero. As usual this is a breaking change to the C-API but backwards compatible when using the JS-API.
* Add push/pop support for anyref (#2376)Heejin Ahn2019-10-103-19/+93
| | | | This adds push/pop support for anyref. This also adds missing C API tests for push/pop.
* v8x16.swizzle (#2368)Thomas Lively2019-10-033-208/+236
| | | | As specified at https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#swizzling-using-variable-indices.
* SIMD load and extend instructions (#2353)Thomas Lively2019-09-243-121/+248
| | | | | | Adds support for the new load and extend instructions. Also updates from C++11 to C++17 in order to use generic lambdas in the interpreter implementation.
* v128.andnot instruction (#2355)Thomas Lively2019-09-243-195/+223
| | | | | 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 Lively2019-09-233-121/+198
| | | | | | | 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 Lively2019-09-143-543/+825
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* QFMA/QFMS instructions (#2328)Thomas Lively2019-09-033-122/+274
| | | | | | | | | 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 missing new features to the C and JS APIs (#2312)Daniel Wirtz2019-08-282-0/+4
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* Add atomic.fence instruction (#2307)Heejin Ahn2019-08-273-24/+101
| | | | | | | 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.
* Remove test output from source tree (#2114)Sam Clegg2019-08-211-1/+1
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* Add initial support for anyref as an opaque type (#2294)Jay Phelps2019-08-202-7/+9
| | | | | | | | | | | | | 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 Ahn2019-08-133-693/+816
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Finalize tail call support (#2246)Thomas Lively2019-07-232-48/+36
| | | | 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.
* Tail call C/JS API (#2223)Thomas Lively2019-07-153-21/+90
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* Rename except_ref type to exnref (#2224)Heejin Ahn2019-07-142-2/+2
| | | | In WebAssembly/exception-handling#79 we agreed to rename `except_ref` type to `exnref`.
* Initial tail call implementation (#2197)Thomas Lively2019-07-031-2/+2
| | | | | | | | | | | Including parsing, printing, assembling, disassembling. TODO: - interpreting - effects - finalization and typing - fuzzing - JS/C API
* Fix bug and leak in relooper merge consecutive blocks (#2159)hobby82019-06-072-0/+86
| | | | | | | | | | | | | | | | | | Fixes in Relooper merge consecutive blocks: Entry block getting removed when it is part of a loop: bb1->AddBranchTo(bb2, nullptr); bb1->AddBranchTo(bb3, ...); bb2->AddBranchTo(bb1, nullptr); bb3->AddBranchTo(bb4, nullptr); relooper.AddBlock(bb1); relooper.AddBlock(bb2); relooper.AddBlock(bb3); relooper.AddBlock(bb4); relooper.Calculate(bb1); Branches memory leak
* Add event section (#2151)Heejin Ahn2019-05-313-8/+27
| | | | | | | | | | | | | | | | | | 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
* Add Features.MVP and Features.All to binaryen.js (#2148)Heejin Ahn2019-05-292-8/+6
| | | | This adds `Features.MVP` and `Features.All` to binaryen.js and make test cases use it.
* Add BinaryenModuleWriteSExpr to write a module to a string in s-expr format ↵Siddharth2019-05-212-0/+35
| | | | | (#2106) Fixes #2103.
* Reflect instruction renaming in code (#2128)Heejin Ahn2019-05-2116-214/+214
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Features C/JS API (#2049)Thomas Lively2019-05-172-0/+30
| | | | | Add feature handling to the C/JS APIs. No features are enabled by default, so all used features will have to be explicitly enabled in order for modules to validate.
* Allow color API to enable and disable colors (#2111)Siddharth2019-05-171-0/+16
| | | | | | This is useful for front-ends which wish to selectively enable or disable coloring. Also expose these APIs from the C API.
* Add missing methods for globals to binaryen.js (#2099)Heejin Ahn2019-05-131-2/+2
| | | | | - Print `globals` array in the tracing mode like other arrays (`functions`, `exports`, `imports`, ...) - Add accessor functions for globals
* Add except_ref type (#2081)Heejin Ahn2019-05-072-1/+3
| | | | This adds except_ref type, which is a part of the exception handling proposal.
* Passive segments (#1976)Thomas Lively2019-04-0514-23/+31
| | | | | Adds support for the bulk memory proposal's passive segments. Uses a new (data passive ...) s-expression syntax to mark sections as passive.
* Update v128.const text formats (#1934)Thomas Lively2019-03-192-630/+630
| | | | | Parse the formats allowed by the spec proposal and emit the i32x4 canonical format.
* Align v128 text format with WABT (#1930)Daniel Wirtz2019-03-042-630/+630
| | | | | | | | This PR changes the formatting of v128.const literals in text format / stack ir like so - v128.const i32 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xa 0xb 0xc 0xd 0xe 0xf 0x80 + v128.const i32 0x04030201 0x08070605 0x0c0b0a09 0x800f0e0d Recently hit this when trying to load Binaryen generated text format with WABT, which errored with `error: unexpected token 0x5, expected ).
* SmallVector (#1912)Alon Zakai2019-02-252-0/+69
| | | | | Trying to refactor the code to be simpler and less redundant, I ran into some perf issues that it seems like a small vector, with fixed-size storage and optional additional storage as needed, might help with. This implements that class and uses it in a few places. This seems to help, I see some 1-2% fewer instructions and cycles in `perf stat`, but it's hard to tell if it really makes a noticeable difference.
* Bulk memory operations (#1892)Thomas Lively2019-02-053-70/+161
| | | | | | Bulk memory operations The only parts missing are the interpreter implementation and spec tests.
* Massive renaming (#1855)Thomas Lively2019-01-0713-235/+235
| | | | | | Automated renaming according to https://github.com/WebAssembly/spec/issues/884#issuecomment-426433329.
* LocalCSE: Consider pass options, both size and cost (#1840)Alon Zakai2018-12-212-0/+19
| | | With this we can optimize redundant global accesses fairly well (at least locally; licm also works), see #1831
* SIMD (#1820)Thomas Lively2018-12-133-305/+3876
| | | | | | | | | Implement and test the following functionality for SIMD. - Parsing and printing - Assembling and disassembling - Interpretation - C API - JS API
* Use template magic for tracing expressions (#1815)Thomas Lively2018-12-101-8/+8
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* Implement nontrapping float-to-int instructions (#1780)Thomas Lively2018-12-043-196/+342
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* Add v128 type (#1777)Thomas Lively2018-11-292-1/+3
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* Relooper: Merge consecutive blocks (#1770)Alon Zakai2018-11-265-141/+385
| | | That is, A -> B where no other branches go to B. In that case we are guaranteed to not increase code size.
* Merge-Blocks improvements (#1760)Alon Zakai2018-11-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | Previously we didn't try to merge a block into the parent if the block had a name. This lets us merge part of it, that is: (block (..a..) (block $child (..b..) (.. some br to $child ..) (..c..) ) ) => (block (..a..) (..b..) ;; moved out (block $child (.. some br to $child ..) (..c..) ) ) This is beneficial for 2 reasons: the child may now be a singleton, so we can remove the block; or, now that we canonicalized the br-containing code to the head of the child, we may be able to turn it into an if.
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