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wasm2js -O --emscripten crashes #2558

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aheejin opened this issue Dec 26, 2019 · 0 comments · Fixed by #2574
Closed

wasm2js -O --emscripten crashes #2558

aheejin opened this issue Dec 26, 2019 · 0 comments · Fixed by #2574

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@aheejin
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aheejin commented Dec 26, 2019 •
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wasm2js -O --emscripten work.wasm

crashes with an error message:

invalid type
UNREACHABLE executed at src/asmjs/asm_v_wasm.cpp:63!
Aborted

Found by the fuzzer. work.wasm was reduced by wasm-reduce. I attached work.wasm here.
work.wasm.tar.gz
@aheejin aheejin mentioned this issue Dec 27, 2019
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@kripken kripken mentioned this issue Jan 6, 2020
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kripken added a commit that referenced this issue Jan 7, 2020
@kripken
DCE at the end of wasm2js (#2574)
0dab885 
By doing so we ensure that our calls to convert wasm
types to JS types never try to convert an unreachable.

Fixes #2558
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DCE at the end of wasm2js WebAssembly/binaryen
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@aheejin