* YJIT: Change the default mem size to 64MiB

* Also update ruby --help

Co-authored-by: Alan Wu <XrXr@users.noreply.github.com>

Certain code page sizes don't work and can cause crashes, so having this
value available as a command-line option is a bit dangerous. Remove it
and turn it into a constant instead.

Reduce default --yjit-exec-mem-size to 128MiB instead of 256

when it fails to allocate a new page.

Co-authored-by: Alan Wu <alansi.xingwu@shopify.com>

* YJIT: Allow --yjit-dump-disasm to dump into a file

* YJIT: Move IO implementation to disasm.rs

* YJIT: More consistent naming

Co-authored-by: Alan Wu <alansi.xingwu@shopify.com>
Co-authored-by: Maxime Chevalier-Boisvert <maxime.chevalierboisvert@shopify.com>

* YJIT: Test Rust 1.58.1 as well on Cirrus

* YJIT: Avoid using a Rust 1.60.0 feature

* YJIT: Use autoconf to detect support

* YJIT: We actually need to run it

for checking it properly

* YJIT: Try cfg!(target_feature = "lse")

* Revert "YJIT: Try cfg!(target_feature = "lse")"

This reverts commit 4e2a9ca9a9c83052c23b5e205c91bdf79e88342e.

* YJIT: Add --features stats only when it works

* Update configure.ac

Co-authored-by: Maxime Chevalier-Boisvert <maximechevalierb@gmail.com>

* Guard --yjit-stats behind #[cfg(feature = "stats")]

* Only ask for --yjit-stats with dev builds on cirrus CI

* Revert "Only ask for --yjit-stats with dev builds on cirrus CI"

This reverts commit cfb5ddfa4b9394ca240447eee02637788435b02a.

* Make it so the --yjit-stats option works for non-release builds

* Revert accidental changes

* YJIT: Add asm comment for incr_counter

* YJIT: Check if the processor supports --yjit-stats