Peter Zhu a69bb3ab60 Implement GC fast path for gen_new_range ...

Implements GC fast path for newrange instruction when we do not need to
call <=> method (when either endpoint is nil or both are fixnums).

Benchmark:

    def run(max)
      i = 0
      while i < max
        a = i..max
        i += 1
      end
    end

    30.times { run(10) }
    run(10_000_000)

Result:

    Benchmark 1: master
      Time (mean ± σ):     221.8 ms ±   5.2 ms    [User: 214.4 ms, System: 5.8 ms]
      Range (min … max):   216.4 ms … 235.8 ms    13 runs

    Benchmark 2: branch
      Time (mean ± σ):      62.4 ms ±   1.6 ms    [User: 56.0 ms, System: 5.1 ms]
      Range (min … max):    60.7 ms …  69.7 ms    46 runs

    Summary
      branch ran
        3.56 ± 0.12 times faster than master

2026-07-29 16:06:56 -04:00

..

bindgen

…

src

Implement GC fast path for gen_new_range

2026-07-29 16:06:56 -04:00

.gitignore

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build.rs

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Cargo.lock

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Cargo.toml

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zjit.mk

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