Comment by jsheard
3 months ago
Unfortunately 64bit address suppport does the opposite, that comes with a non-trivial performance penalty because it breaks the tricks that were used to minimize sandboxing overhead in 32bit mode.
https://spidermonkey.dev/blog/2025/01/15/is-memory64-actuall...
1) This may be temporary.
2) The bounds checking argument is a problem, I guess?
3) This article makes no mention of type-checking, which is also a new feature, which moves some checks that normally only run at runtime to only needing to be checked once at compile time, and this may include bounds-style checks