Fix GUFA on calls to function refs in open world #7135
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tlively
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Dec 4, 2024
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CountBleck
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Jun 1, 2025
Some new features are being added, although only relaxed SIMD is in a usable state. stringref has been almost obliterated, and only functionality compatible with JS string builtins is being kept. Binaryen also seems to be generating more nops and blocks than usual. Also, due to WebAssembly/binaryen#7135, dead arguments aren't being eliminated when a function reference is made (ref.func), which affects the optimized output of call-optional, function-call, and other tests.
CountBleck
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Jun 1, 2025
Some new features are being added, although only relaxed SIMD is in a usable state. stringref has been almost obliterated, and only functionality compatible with JS string builtins is being kept. Binaryen also seems to be generating more nops and blocks than usual. Also, due to WebAssembly/binaryen#7135, dead arguments aren't being eliminated when a function reference is made (ref.func), which affects the optimized output of call-optional, function-call, and other tests.
CountBleck
added a commit
to CountBleck/assemblyscript
that referenced
this pull request
Jun 1, 2025
Some new features are being added, although only relaxed SIMD is in a usable state. stringref has been almost obliterated, and only functionality compatible with JS string builtins is being kept. Binaryen also seems to be generating more nops and blocks than usual. Also, due to WebAssembly/binaryen#7135, dead arguments aren't being eliminated when a function reference is made (ref.func), which affects the optimized output of call-optional, function-call, and other tests.
CountBleck
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Jun 3, 2025
Due to WebAssembly/binaryen#7135, any function reference is treated as potentially leaked to the outside world, unless the module is marked as closed-world. This prevents DAE from taking place. To fix this, mark the module as closed-world when tables are neither imported nor exported and when exports do not return/contain funcrefs.
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In open world we must assume that a funcref that escapes to the outside
might be called.