[ruby-core:118283] [Ruby master Bug#20572] Compilation hangs with nested until

11 Jun 2024

      Issue #20572 has been updated by nobu (Nobuyoshi Nakada).

Since `ruby --dump=i,-opt -e 'until while 1; end; end'` finishes immediately, it is a bug of optimization.

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Bug #20572: Compilation hangs with nested until
https://bugs.ruby-lang.org/issues/20572#change-108779

* Author: kddnewton (Kevin Newton)
* Status: Open
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
```ruby
until while 1
end
end
```

this code causes an infinite loop in the compiler.

-- 
https://bugs.ruby-lang.org/