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wcc/cgen: GAP-A.len def-global array .len — def-twin cgdot arm (#7 lineage, wwstage align-up)

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wwstage .len on a def-global array fell to the cgdot SB-fallback (w6l: undefined reference to 'len') — the #7 let-array arm gates on letvartnode (c.lets only), so def-globals (c.defs) missed it. Add a def .len-only arm in cgdot using the existing defvartnode (the def-side mirror of letvartnode), emitting the length immediate from the #11-stamped N_TARRAY length child. cstage cgen.c was already correct, so this is a wwstage-only source change: w6c unchanged, w6c_ww + wwdump regen'd (they embed the wcc cgen).

.ptr (cstage itself buggy — emits LEAQ (BP), filed GAP-A.ptr) and .cap (wwstage silent garbage; arrays have no cap, filed GAP-A.cap) are NOT folded (rule-11, separate concerns). Pin: table-driven test/wcc/816_def_arr_len (def [3] + [_] inferred + 1-elem + u8 stride .len, both stages + byte-id), teeth-proven.
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Hojun-Cho
2026-06-08 16:19:29 +09:00
parent c35034df3f
commit 7b0e09e065
5 changed files with 342 additions and 0 deletions
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@@ -244,6 +244,7 @@ TESTS = $(BIN)/test_smoke $(BIN)/test_lex $(BIN)/test_parse $(BIN)/test_check \
$(BIN)/test_arr_tagged_elem \
$(BIN)/test_arr_infer_len \
$(BIN)/test_def_arr_infer_len \
$(BIN)/test_def_arr_len \
$(BIN)/test_slice_str_global_zero \
$(BIN)/test_slice_literal_global \
$(BIN)/test_global_arr_elem_field \
@@ -640,6 +641,12 @@ $(BIN)/test_def_arr_infer_len: test/wcc/814_def_arr_infer_len.c $(BIN)/ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_def_arr_len: test/wcc/816_def_arr_len.c $(BIN)/ww \
$(BIN)/w6c $(BIN)/w6a $(BIN)/w6l \
$(BIN)/ww_ww $(BIN)/w6c_ww $(BIN)/w6a_ww $(BIN)/w6l_ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_arr_tagged_elem: test/wcc/685_arr_tagged_elem.c $(BIN)/ww \
$(BIN)/w6c $(BIN)/w6a $(BIN)/w6l \
$(BIN)/ww_ww $(BIN)/w6c_ww $(BIN)/w6a_ww $(BIN)/w6l_ww \