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We don't ever emit "use asm" anymore, so this similar annotation is not really useful, it just increases size.
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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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When loading a boolean, prefer the signed heap (which is more commonly used, and may be faster).
We never use HEAPU32 (HEAP32 is always enough), just remove it.
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Without this PR, wasm2js0.test_printf in emscripten took an extremely long time to compile.
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A minifier would probably remove them later anyhow, but they make reading the code annoying and hard.
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That pass is very slow on unoptimized code (super-linear on the number of locals, which if unoptimized can be massive due to flatten).
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In particular, coalesce-locals is useful even if closure is run later (apparently it finds stuff closure can't).
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We flatten for the i64 lowering etc. passes, and it is worth optimizing afterwards, to clean up stuff they created. That is run if the user ran wasm2js with an optimization level (like wasm2js -O3).
Split the test files to check both optimized and unoptimized code.
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As well as i64 splitting this pass was also converting f32 to f64
at the wasm boundry. However it appears this is not actually useful
and makes somethings (such as dynamic linking) harder.
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* Emit ints as signed, so -1 isn't a big unsigned number.
* x - -c (where c is a constant) is larger than x + c in js (but not wasm)
* +(+x) => +x
* Avoid unnecessary coercions on calls, return, load, etc. - we just need coercions when entering or exiting "wasm" (not internally), and on actual operations that need them.
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Removes redundant | 0s and similar things. (Apparently closure compiler doesn't do that, so makes sense to do here.)
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(#2043)
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Also fix the fuzzer's handling of feature flags so that wasm2js can work.
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Also run remove-unused-names which became more noticeably necessary after this change.
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We run flatten there, which lets us simplify things a lot. Turns out that for assertions we didn't run it, which is why we still needed the old non-flat code paths. This adds flatten there and removes that old code and assumptions.
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Also test in pass-debug mode, for better coverage.
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