| Commit message (Collapse) | Author | Age | Files | Lines |
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This is because we maybe need to reference the segments
during the start function. For example in the case of
pthreads we conditionally load passive segments during
start.
Tested in emscripten with: tests/runner.py wasm2js1
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The asmFunc now sets the outer scope's `bufferView` variable
as well as its own internal views.
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Using addition in more places is better for gzip, and helps simplify the
optimizer as well.
Add a FinalOptimizer phase to do optimizations like our signed LEB tweaks, to
reduce binary size in the rare case when we do want a subtraction.
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Also, format the asmFunc call to make it more readable in the ES6
modules case.
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i64 reinterprets were lowered in the i64 pass, and i32s at the very end, in
wasm2js itself. This could break since in between the i64 pass and wasm2js
we run optimizations, and the optimizer was not aware of what we lower
the i32 reinterprets to - calls to use scratch memory. Those calls have a
side effect of altering scratch memory. The optimizer just saw an i32
reinterpret, and moved it across the i64 reinterpret's scratch memory calls.
This makes 32-bit reinterprets use separate scratch memory from 64-bit ones,
which means they can never interfere with each other.
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Adds a special helper functions for data.drop etc., as unlike most
wasm instructions these are too big to emit inline.
Track passive segments at runtime in var memorySegments
whose indexes are the segment indexes.
Emit var bufferView even if the memory exists even without
memory segments, as we do still need the view in order to
operate on it.
Also adds a few constants for atomics that will be useful in future
PRs (as this PR updates the constant lists anyhow).
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