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This is more modern and (IMHO) easier to read than that old C typedef
syntax.
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Refactor everywhere from:
```c++
for (size_t i = 0; i < indent; i++) {
o << ' ';
}
```
to:
```c++
o << std::string(indent, ' ');
```
### Motivation
It is much simpler and should produce smaller code.See godbolt:
https://godbolt.org/z/KMYMdn7z5
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This removes `exnref` type and `br_on_exn` instruction.
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This avoids needing to add include wasm-printing if a file doesn't already have it.
To achieve that, add the std::ostream hooks in wasm.h, and also use them
when possible, removing the need for the special WasmPrinter object.
Also stop printing in "full" (print types on each line) in error messages by default. The
user can still get that, as always, using BINARYEN_PRINT_FULL=1 in the env.
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When there are two versions of a function, one handling tuples and the other handling non-tuple values, the previous naming convention was to have "Single" in the name of the non-tuple handling function. This PR simplifies the convention and shortens function names by making the names plural for the tuple-handling version and singular for the non-tuple-handling version.
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This calls `Fatal()` when EH instructions are used in unsupported code.
Currently EH instructions are unsupported in Flatten, ReReloop, and
DataFlow-using passes.
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This involves replacing `Literal::makeZero` with `Literal::makeZeroes`
and `Literal::makeSingleZero` and updating `isConstantExpression` to
handle constant tuples as well. Also makes `Literals` its own struct
and adds convenience methods on it.
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Like `br_if`, `br_on_exn` is a conditional branch and across which code
can be pushed past when conditions are satisfied.
Also adds a few lines of comments and NFC changes in a couple places.
Changes in Vacuum are NFC because they were being handled in `default:`
in the same way anyway, but I added them to be more explicit and
consistent with existing code.
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This fixes the parent-child relationship computation in `DataFlow.Graph`
when there is a loop. This wasn't discovered until now because this is
used in Souperify and Souperify only runs after Flatten pass, which
produces redundant blocks between inside and outside of a loop.
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This works more like llvm's unreachable handler in that is preserves
information even in release builds.
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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.
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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.
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- 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.
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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.
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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
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Automated renaming according to
https://github.com/WebAssembly/spec/issues/884#issuecomment-426433329.
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Implement and test the following functionality for SIMD.
- Parsing and printing
- Assembling and disassembling
- Interpretation
- C API
- JS API
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For souper we need to flip some operations in DataFlow IR, since souper doesn't have any redundant ones. But we flipped not just left and right but also equal/not equal, which was wrong.
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We create some fake nodes for internal use, and were looking at one by mistake. This fixes that by
* Creating a non-ambiguous fake node, a call (which represents an unknown value properly, unlike a zero which we had before).
* Make DFO not rely on those values, if it knows a node is constant, apply those constant values.
Found by the fuzzer.
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Background: google/souper#323
This adds a --souperify pass, which emits Souper IR in text format. That can then be read by Souper which can emit superoptimization rules. We hope that eventually we can integrate those rules into Binaryen.
How this works is we emit an internal "DataFlow IR", which is an SSA-based IR, and then write that out into Souper text.
This also adds a --dfo pass, which stands for data-flow optimizations. A DataFlow IR is generated, like in souperify, and then performs some trivial optimizations using it. There are very few things that can do that our other optimizations can't already, but this is also good testing for the DataFlow IR, plus it is good preparation for using Souper's superoptimization output (which would also construct DataFlow IR, like here, but then do some matching on the Souper rules).
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