Refactoring rvs mode: deprecate BBCode.

[yebai]

Deprecates BBCode in favour of Julia’s native IRCode plus a small local helper.

This needs to be split into smaller PRs for a comfortable review.

Do not review, work in progress.

CI Summary — GitHub Actions

Documentation Preview

Mooncake.jl documentation for PR #1152 is available at:
https://chalk-lab.github.io/Mooncake.jl/previews/PR1152/

Performance

Performance Ratio:
Ratio of time to compute gradient and time to compute function.
Warning: results are very approximate! See here for more context.

┌───────────────────────┬──────────┬──────────┬─────────────┬─────────┬─────────────┬────────┐
│                 Label │   Primal │ Mooncake │ MooncakeFwd │  Zygote │ ReverseDiff │ Enzyme │
│                String │   String │   String │      String │  String │      String │ String │
├───────────────────────┼──────────┼──────────┼─────────────┼─────────┼─────────────┼────────┤
│              sum_1000 │ 190.0 ns │     1.58 │        1.53 │   0.689 │        3.11 │   5.91 │
│             _sum_1000 │ 972.0 ns │     6.82 │        1.01 │  4570.0 │        36.7 │   1.06 │
│          sum_sin_1000 │  7.09 μs │     3.39 │        1.35 │    1.52 │        11.0 │   1.79 │
│         _sum_sin_1000 │  6.32 μs │     3.39 │        1.79 │   259.0 │        12.6 │   2.08 │
│              kron_sum │ 206.0 μs │     12.6 │        3.22 │    12.8 │       348.0 │   18.9 │
│         kron_view_sum │ 293.0 μs │     11.2 │        5.02 │    14.2 │       319.0 │   12.3 │
│ naive_map_sin_cos_exp │  2.42 μs │     3.06 │        1.48 │ missing │        7.32 │   2.07 │
│       map_sin_cos_exp │   2.4 μs │     3.55 │        1.61 │    1.44 │         6.6 │   2.55 │
│ broadcast_sin_cos_exp │  2.42 μs │     3.12 │        1.58 │    3.81 │        1.41 │   2.06 │
│            simple_mlp │ 391.0 μs │     4.66 │        2.55 │    2.16 │        8.28 │   2.84 │
│                gp_lml │ 397.0 μs │     5.72 │        1.73 │    3.02 │     missing │   2.91 │
│    large_single_block │ 411.0 ns │     5.29 │        2.05 │  5350.0 │        33.1 │    2.1 │
└───────────────────────┴──────────┴──────────┴─────────────┴─────────┴─────────────┴────────┘

[codecov]

Codecov Report

❌ Patch coverage is 94.91870% with 25 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/interpreter/reverse_mode.jl	95.03%	23 Missing ⚠️
src/interpreter/ir_utils.jl	88.88%	2 Missing ⚠️

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