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Merge pull request #2176 from brazilofmux/chore/2156-changes-reflow

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Reflow the #2132 CHANGES paragraph after #2175's edit.
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Stephen Dennis 2026-08-06 21:31:35 -06:00 • committed by GitHub
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mux/CHANGES.md
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@ -109,13 +109,13 @@ release carried the bad state.
measured on the bare generator — subtracting it leaves the loop flat
to within noise). The compiled generator's digit term is ~10x the
interpreter's, so the slope is visible on the JIT route and invisible
on the AST one. MAP, FILTER and
FOLD followed in the same cycle (#2152/#2153): each arm gates on the
integer trio (`SPLIT_STEP`/`APPEND_I`/`BYTELEN_I` — the last kills the
CARGS-fit guard's per-element decimal round-trip) and declines to its
generic ECALL fallback on an older blob. Measured against the
interpreter with live u-inlined bodies: map 1.7x, filter up to 1.9x,
fold 3.5-3.7x faster.
on the AST one. MAP, FILTER and FOLD followed in the same cycle
(#2152/#2153): each arm gates on the integer trio
(`SPLIT_STEP`/`APPEND_I`/`BYTELEN_I` — the last kills the CARGS-fit
guard's per-element decimal round-trip) and declines to its generic
ECALL fallback on an older blob. Measured against the interpreter
with live u-inlined bodies: map 1.7x, filter up to 1.9x, fold
3.5-3.7x faster.
- **`map()` and `filter()` have JIT lowerings**, composed from the `iter()`
loop and the `u()` inline rather than written fresh.
- **The `u()`-inline permission branch had its arms reversed since it was