WebAssembly / WebAssembly/wabt

Compiling WebAssembly 3.0 test cases fails

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#2,648 3 comments 1 reaction 0 assignees View on GitHub

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Dominant language
C++
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Description

$ wast2json --enable-all --no-check spec/test/core/align.wast
# /spec/test/core/align.wast:1021:45: error: alignment must be power-of-two
      i32.load offset=0xFFFF_FFFF_FFFF_FFFF align=0x8000_0000_0000_0000

source: https://github.com/WebAssembly/spec/blob/main/test/core/align.wast#L1021

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Research direction

Reproduce the failure with wast2json --enable-all --no-check spec/test/core/align.wast, then inspect test/core/align.wast at line 1021 and the validation path that reports the alignment error. Done means the WebAssembly 3.0 test case compiles successfully without incorrectly rejecting this alignment.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, wasm
Domain
compilers, devtools, testing-qa
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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