Way of using binaryen without optimization passes

Open

#7,566 opened on May 2, 2025 4 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 25/100

Issue type: Feature
Clarity: Needs clarification
Activity status: Stale
Tech stack: wasm
Domain: compilers

Research direction

The issue names no files, tests, or entry points. Start by locating Binaryen's public compilation entry points and build configuration, then determine whether a minimal path can emit WASM without optimization passes or Wasm2JS. Done means documenting or exposing a confirmed minimal usage path.

Written by the indexing model from the issue text.

Description

I would like to use binaryen just to emit WASM modules without optimizations, Wasm2JS and so on. Is it possible to compile somewhat minimal amount of code for that? Did not find a quick way to do it.

Dominant language: WebAssembly
Stars: 8.6k
Forks: 885
Avg merge: 2d 1h
Merged PRs (30d): 70

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Similar issues

`EoCodec` stores a `float` as a `double`, so a signaling-NaN float constant comes back with different bits Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

objectionary/jeo-maven-plugin#1774 · Opened Sep 21, 2026
cmd/compile/internal/syntax: printer panics on empty var () declaration statement Open

compiler/runtime

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

golang/go#81633 · Opened Sep 21, 2026
[fx] Generated code for `operator.pow(-2, x)` is `-2 ** x`, which Python evaluates as `-(2 ** x)`: `GraphModule.forward` returns the wrong sign (`Interpreter` is correct); reachable from `torch.compile(dynamic=True)` via `(-1) ** x.shape[0]` Open

bot-triaged module: correctness (silent) module: fx release triage triage review

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

pytorch/pytorch#197894 · 1 comment · Opened Sep 21, 2026
Grammar Gap: activated › effect clause › {self} deals damage equal to its power to target creature Open

area:mechanics ready-for-agent

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

fil-donadoni/tolaria#4317 · Opened Sep 21, 2026
`as-fixed.eo` keeps a minus sign on an all-zero result once `places` exceeds 15 Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

objectionary/eo#8869 · 1 comment · Opened Sep 21, 2026

More Compilers issues