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jolt build: --opt mode turns on the inference passes (Phase 4 stage 4a)

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Wire the optimization gate to build mode. inline-enabled? (which gates the
inference + flatten-lets + scalar-replace passes in jolt.passes/run-passes) was
hardwired off, so those passes had never run on Chez at all. host-contract now
exposes a settable hc-optimize? flag; `jolt build --opt` flips it on during app
emission.

Kept off for the default release build for now: the passes are sound by design
(RFC 0005/0006) but unexercised on Chez, so release stays on the proven
var-deref codegen until they're validated against the corpus. --opt is the
opt-in fast path. buildsmoke checks both modes produce the same result.

This does not yet deliver direct call binding — the backend has no direct-link
emission path (every :var call still routes through jolt-invoke/var-deref) and
the inline-ir host stash is still a stub. Those are the remaining stage-4 levers.
This commit is contained in:
Yogthos 2026-06-22 23:07:04 -04:00
parent 43778eafd7
commit f66925d3a8
3 changed files with 26 additions and 5 deletions
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7
host/chez/host-contract.ss
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@ -280,7 +280,12 @@
(define (hc-record-type? ctx name) #f)
(define (hc-record-ctor-key ctx name) jolt-nil)
(define (hc-record-shapes ctx) (jolt-hash-map))
(define (hc-inline-enabled? ctx) #f)
;; Optimization gate. Off for ordinary runs (open world, redefinition); `jolt
;; build` flips it on during app emission for release/optimized modes (closed
;; world), turning on the inference + flatten + scalar-replace passes.
(define hc-optimize? #f)
(define (set-optimize! on) (set! hc-optimize? on))
(define (hc-inline-enabled? ctx) hc-optimize?)
(define (hc-inline-ir ctx ns-name nm) jolt-nil)
;; --- declare the hot clojure.core primitives so resolve-global sees them ------