Repro for peggy + swc compression bug
The peggy.js library can easily generate deeply nested conditions. If the nesting gets sufficiently deep, SWC compression seems to slow down exponentially.
In this repo, you will find 3 peggy files to demonstrate how compression slows down
npm run small- 0.149snpm run medium- 4.677snpm run large- 18.408s
The slow down seems directly tied to the unused compression option. If you run large with unused: false, it is almost instant
npm run large-unused-off- 0.163s