WASI support #1
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WASI support #1
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This commit introduces the necessary infrastructure to handle WebAssembly memory operations.
This commit introduces a memory management API for WebAssembly, enabling direct manipulation of memory segments on Wasm linear memory. `MemoryAllocator` handles the allocation and freeing of memory, while `MemorySegment` allows for read/write data on the allocated memory. Those APIs are implemented as a intrinsic functions: Wasm linker backend translates the method body of `allocate`, `free` of `MemoryAllocator` and `_storeX`, `_loadX` of `MemorySegment` to `Transient.Value` and then transformed into Wasm via `FunctionEmitter`. We use `Transient.Value` instead of defining new `Tree`s in SJSIR, so that we wouldn't introduce the breaking change once we need to modify the structure of those structures. We'll keep them `Transient.Value` at least until we make sure we found the "right" IR structure.
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tanishiking/scala-wasm#135