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wcc/ww: .wwi separate-compile consumer — w6c -c codegen filter (#22 M3)

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New `w6c -c` (both stages): separate-compile / primary-only codegen.
Emit code+DATA ONLY for a package's own (imported==0) decls; treat every
`.wwi`-sourced (imported==1) dep decl as an external. Pure addition behind
the flag — combined.ww stays the LIVE path, `-c` is off on every existing
invocation, so the 990-997 byte-id gates + all prior tests are unperturbed.

The keystone (rob): a `.wwi` is body-less/init-less prototype source, and
cgen already skips body-less fns as externs, so dep fns/types/defs emit
NOTHING for free. The single genuinely-new guard is an imported value-
global (`export let`): its DATAW would DUPLICATE the dep's own definition
(link collision), so it is skipped. The `imported==0` gate is applied at
all top-level emit sites for uniformity (close-by-construction): the fn
loop, emit_lets/emitletdataw, emit_defs/emitdefconstants, and
let_pre_intern/letpreintern — that last one because an imported dep's body
initializer interns strlits while its rhs-stripped `.wwi` does not, which
would shift the _S_ sequence; gating it keeps the strlit table a pure
function of the package's own decls. EXACTLY symmetric with M2's producer
`imported==0` filter — same predicate both directions.

Driver `--sep` build_one_sep + per-package archives + multi-.a link +
cache + BROAD real-target dual-path soak are M3-tail (#46, rob ruling B):
M3-core ships the codegen spine + a self-contained gate that proves all
codegen correctness without a production driver.

Gate 989_m3sep_run: a synth leaf->mid->root fixture carrying all four
cross-boundary fact-classes (fn signature, struct LAYOUT, `def` const
VALUE, `export let` value-global). Per package, holding `-c` constant:
`w6c -c` of (deps-as-bodies) == (deps-as-.wwi) byte-for-byte (the .wwi
conveys exactly the dep facts P's codegen needs); cs==ww at the .s AND
final-exe level (rule 10); sep-path determinism; the value-global guard
(imported origin_tag never re-emits DATAW); and behavioral identity (the
linked program's exit code is the real cross-boundary computation). COLD:
.wwi materialized fresh every run (no warm cache).

combined.ww regen'd for wwdump + w6c (both embed cgen.ww); diff is exactly
the four guards + the flag wiring, nothing spurious.
This commit is contained in:
Hojun-Cho
2026-06-15 22:00:13 +09:00
parent e8d3d89fef
commit 13e5e35f81
10 changed files with 608 additions and 9 deletions
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10
Makefile
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@@ -562,6 +562,7 @@ TESTS = $(BIN)/test_smoke $(BIN)/test_lex $(BIN)/test_parse $(BIN)/test_check \
$(BIN)/test_regex_run \
$(BIN)/test_lib_byteid \
$(BIN)/test_m2wwi_run \
$(BIN)/test_m3sep_run \
$(BIN)/test_floatlit_run \
$(BIN)/test_checked_run \
$(BIN)/test_floatarr_run \
@@ -3087,6 +3088,15 @@ $(BIN)/test_m2wwi_run: test/wcc/989_m2wwi_run.c $(BIN)/ww $(BIN)/w6c \
$(BIN)/w6c_ww $(BIN)/wwdump $(BIN)/w6a $(BIN)/w6l $(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
# M3 `.wwi` separate-compile CONSUMER gate (task #22 arc). Drives both
# toolchains: w6c/w6c_ww (-c codegen filter), w6a/w6a_ww, w6l/w6l_ww for
# the per-package .s byte-id + cs==ww .s/exe + determinism + behavioral
# soak on the synth leaf->mid->root fixture. COLD: .wwi materialized fresh.
$(BIN)/test_m3sep_run: test/wcc/989_m3sep_run.c $(BIN)/ww $(BIN)/w6c \
$(BIN)/w6c_ww $(BIN)/w6a $(BIN)/w6a_ww $(BIN)/w6l $(BIN)/w6l_ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_floatlit_run: test/wcc/989_floatlit_run.c $(BIN)/ww $(BIN)/w6c \
$(BIN)/w6c_ww $(BIN)/w6a $(BIN)/w6l $(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<