Issues

• Asyncify produces invalid IR for inner passes

  WebAssembly/binaryen#8753 · Filter by author stevenfontanella opened on May 21, 2026

• support.run_command ignores --no-fail-fast

  WebAssembly/binaryen#8735 · Filter by author sertonix opened on May 20, 2026

• Slow reduction using delta debugging

  WebAssembly/binaryen#8712 · Filter by author kripken opened on May 15, 2026
  18

• Validator incorrectly rejects call_indirect to table of type (ref null nofunc)

  WebAssembly/binaryen#8710 · Filter by author stevenfontanella opened on May 15, 2026
  2

  

• TypeSSA could delete exactness

  WebAssembly/binaryen#8694 · Filter by author tlively opened on May 12, 2026

• Global store-to-load forwarding

  WebAssembly/binaryen#8691 · Filter by author mkustermann opened on May 12, 2026
  6

• Optimization issue where allocation is not eliminated

  WebAssembly/binaryen#8641 · Filter by author mkustermann opened on Apr 22, 2026
  2

  

• Branch hint fuzz bug with --code-pushing

  WebAssembly/binaryen#8622 · Filter by author tlively opened on Apr 17, 2026
  2

• Improve effects analysis for indirect calls

  WebAssembly/binaryen#8615 · Filter by author stevenfontanella opened on Apr 16, 2026

• Module.readBinary use current spec as default feature set.

  WebAssembly/binaryen#8560 · Filter by author spotandjake opened on Mar 31, 2026

• MSVC builds seems to be full of warning, which makes debugging harder.

  WebAssembly/binaryen#8546 · Filter by author sbc100 opened on Mar 30, 2026
  1

• Convert more test suits to use lit and/or parallel test runner

  WebAssembly/binaryen#8520 · Filter by author sbc100 opened on Mar 25, 2026
  6

  

• Requesting benchmarks to evaluate performance improvements.

  WebAssembly/binaryen#8518 · Filter by author fzt1106 opened on Mar 25, 2026
  5

• String escaping fuzz bug with wasm-metadce

  WebAssembly/binaryen#8482 · Filter by author tlively opened on Mar 18, 2026
  7

  

• Infinite wait in fuzzer

  WebAssembly/binaryen#8429 · Filter by author tlively opened on Mar 7, 2026
  4

• ~+700% regression in wasm-opt --nm performance from Emscripten 3.1.38 -> 4.0.19

  WebAssembly/binaryen#8406 · Filter by author juj opened on Mar 2, 2026
  9

• Support try_table in Flatten

  WebAssembly/binaryen#8372 · Filter by author Pspritechologist opened on Feb 24, 2026
  9

• pass test failures on 32-bit systems

  WebAssembly/binaryen#8366 · Filter by author stevenfontanella opened on Feb 24, 2026
  2

• wasm-opt --flatten fails with exceptions or GC

  WebAssembly/binaryen#8325 · Filter by author juntyr opened on Feb 13, 2026
  3

• Wasm-opt not deduplicating repeated struct.gets on unchanged local

  WebAssembly/binaryen#8312 · Filter by author biggs0125 opened on Feb 12, 2026
  3

• Compiling to WGSL

  WebAssembly/binaryen#8266 · Filter by author PaperPrototype opened on Feb 4, 2026

• Improve interpreter spec test coverage

  WebAssembly/binaryen#8261 · Filter by author stevenfontanella opened on Feb 3, 2026
  21

  

• Avoid generating trampolines with --no-placeholders

  WebAssembly/binaryen#8238 · Filter by author tlively opened on Jan 27, 2026
  12

• Combining data segments

  WebAssembly/binaryen#8198 · Filter by author geraintluff opened on Jan 13, 2026
  2

• Refactorings to imports in Binaryen

  WebAssembly/binaryen#8180 · Filter by author stevenfontanella opened on Jan 6, 2026