v3.2.0 missing output

Describe the bug

After upgrading to v3.2.0 or later, vite build no longer outputs CSS files and is missing JS (except barebones IIFE).

Reproduction

https://github.com/DerYeger/vue-masonry-wall/tree/ae1b3b4586a8b0eba96e56997fce34ecd39dd0f2

Steps to reproduce

Run yarn install && yarn build && yarn demo:build

System Info

System:
    OS: macOS 13.1
    CPU: (8) arm64 Apple M1
    Memory: 444.34 MB / 16.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 16.18.0 - ~/.volta/tools/image/node/16.18.0/bin/node
    Yarn: 1.22.19 - ~/.volta/tools/image/yarn/1.22.19/bin/yarn
    npm: 8.19.2 - ~/.volta/tools/image/node/16.18.0/bin/npm
  Browsers:
    Chrome: 107.0.5304.87
    Firefox: 104.0
    Safari: 16.1
  npmPackages:
    @vitejs/plugin-vue: 3.2.0 => 3.2.0
    vite: 3.2.1 => 3.2.1

Used Package Manager

yarn

Logs

Expected

build:demo: vite v3.1.8 building for production...
build:demo: transforming...
build:demo: ✓ 24 modules transformed.
build:demo: rendering chunks...
build:demo: dist/index.html                  1.13 KiB
build:demo: dist/assets/index.306b3559.css   2.84 KiB / gzip: 0.99 KiB
build:demo: dist/assets/index.34650a52.js    63.97 KiB / gzip: 25.68 KiB

With v3.2.0

vite v3.2.1 building for production...
transforming...
✓ 24 modules transformed.
rendering chunks...
dist/index.html                 1.07 KiB
dist/assets/index.891d93e6.js   0.69 KiB / gzip: 0.39 KiB

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn’t already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it’s a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[tzimmermann]

@sodatea In react-stick’s demo page, we also saw the behaviour described here only after upgrading from 3.1.8 to 3.2.0. In case it helps

• the last working vercel deployment on vite 3.1.8 (the JS bundle is ~128kB): https://react-stick-o70kfm9oe-signavio.vercel.app/
• the first broken vercel deployment just after merging the vite 3.2.0 upgrade shows a white page (the JS bundle is <1kB and only contains some module loading boilerplate code): https://react-stick-c0igwspqb-signavio.vercel.app/

Removing sideEffects: false fixed the issue, but I wanted to mention it anyway, as there seems to have been some kind of change in 3.2.0 that surfaced this bug.

[guoyunhe]

I believe the change is from v3.2.0. And it is a regression. sideEffects: false causes empty output, which it shouldn’t.