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Yogthos 75ac93689b Tree-shaking: drop library code unreachable from -main (lever 3/4) 
`jolt build --tree-shake` (or deps.edn :jolt/build {:tree-shake true}) does
reachability DCE over the re-emitted app + library namespaces: keep -main, every
side-effecting (non-def) top-level form, and every def reachable from those; drop
the rest. A macro (expanded at AOT, never called at runtime) is prunable too.

Sound: bails (keeps everything) if REACHABLE code resolves vars by name at runtime
(eval/resolve/ns-resolve/requiring-resolve/find-var/intern/load-string/...), which a
static call graph can't follow. Unreached eval-using library code is simply shaken
away and never triggers the bail. clojure.core and the compiler image stay baked
(prelude + image blobs), so only re-emitted namespaces are shaken for now.

The reachability machinery is in emit-image.ss (records: keep?/fqn/refs/str via
reduce-ir-children) + build.ss (BFS + bail check). build-smoke covers it (drops the
unreachable `twice` macro, output unchanged). Opt-in; default builds are untouched.
full make test green.

Scope note: this shakes the re-emitted app/lib code only. Measurement shows jolt's
compiled code is ~5.8MB of a ~9.8MB binary, dominated by the clojure.core prelude
(~1.5-2MB) and the compiler image (~0.8MB) — both baked blobs this pass doesn't
touch. Those (shake-core, drop-compiler-when-no-eval) are the larger footprint wins,
filed as follow-ups.
2026-06-23 19:45:13 -04:00
..
seed Type literal-init loop counters as fixnums (lever 2/4) 2026-06-23 17:57:39 -04:00
async.ss JVM-semantics fixes and small cleanups 2026-06-23 01:36:51 -04:00
atoms.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
bigdec.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
bootstrap.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
build-smoke.sh Tree-shaking: drop library code unreachable from -main (lever 3/4) 2026-06-23 19:45:13 -04:00
build.ss Tree-shaking: drop library code unreachable from -main (lever 3/4) 2026-06-23 19:45:13 -04:00
cli.ss jolt build: compile an app to a standalone binary (Phase 4 stages 1-2) 2026-06-22 23:01:36 -04:00
collections.ss JVM-semantics fixes and small cleanups 2026-06-23 01:36:51 -04:00
compile-eval.ss Wire the optimization pass pipeline into compile + build 2026-06-23 01:14:14 -04:00
concurrency.ss Dead-code removal, perf fixes, deterministic seed emission 2026-06-23 01:05:45 -04:00
converters.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
dot-forms.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
dyn-binding.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
dynamic-vars.ss Fix conformance gaps: exception types, byte/getBytes, host classes 2026-06-22 17:52:38 -04:00
emit-image.ss Tree-shaking: drop library code unreachable from -main (lever 3/4) 2026-06-23 19:45:13 -04:00
ffi.ss jolt build: bundle native libs + resources into standalone binaries 2026-06-23 13:19:33 -04:00
host-class.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
host-contract.ss Enable IR inlining: splice small defns at call sites (lever 1/4) 2026-06-23 17:43:13 -04:00
host-static-objects.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
host-static-statics.ss Split host-static.ss into base / statics / objects 2026-06-23 04:16:43 -04:00
host-static.ss Split host-static.ss into base / statics / objects 2026-06-23 04:16:43 -04:00
host-table.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
inst-time.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
io.ss jolt build: bundle native libs + resources into standalone binaries 2026-06-23 13:19:33 -04:00
lazy-bridge.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
loader.ss Deduplicate small host helpers 2026-06-23 01:42:33 -04:00
math.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
multimethods.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-array.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
natives-coll.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-meta.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-misc.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
natives-num.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-parity.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-queue.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
natives-seq.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
natives-str.ss Deduplicate small host helpers 2026-06-23 01:42:33 -04:00
natives-xform.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
ns.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
png.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
post-prelude.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
predicates.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
printing.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
reader.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
records-interop.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
records.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00
regex.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
remint.sh Pure-Chez test gates (no Janet) 2026-06-21 11:22:32 -04:00
rt.ss Hint-directed fast arithmetic: fl*/fx* from ^double/^long (round 1) 2026-06-23 16:43:55 -04:00
run-corpus.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
run-infer.ss infer gate: cover the run-inference / take-diags! checker path 2026-06-23 09:38:13 -04:00
run-sci.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
run-unit.ss Real Thread/yield + Thread/interrupted (jolt-l2gc) 2026-06-23 00:06:04 -04:00
selfcheck.sh Pure-Chez test gates (no Janet) 2026-06-21 11:22:32 -04:00
seq.ss Dead-code removal, perf fixes, deterministic seed emission 2026-06-23 01:05:45 -04:00
smoke.sh Pure-Chez test gates (no Janet) 2026-06-21 11:22:32 -04:00
syntax-quote.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
transients.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
values.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
vars.ss Replace str-render/instance-check set! chains with registries 2026-06-23 09:05:36 -04:00