Hojun-Cho
39f9267bc9
Three wwstage cgen sites still used the unrounded structnaturalsize where cstage rounds via lu->size (check.c:760), pre-existing gate-blind cs!=ww latents flagged in #169's reviewer notes: cgenexpr DOT register-RECV for obj.f = mk() (~5175/5393/5628/6164); cgstructlitfill's TK_ELLIPSIS zero-fill branch (cgenutil); and cglet bare 'let z: T;' zero-init of a maxalign<8 struct (cgenstmt). Each produced MOVQ-vs-MOVL or wider-write divergence vs cstage on the trailing word of a sub-eightbyte tail. Converge all three onto the maxalign-rounded structabisize the #169 work established at the register-ABI sites (cite cstage cgen.c:7720 RECV twin + cgen.c:2085 cg_structlit_fill). cgstructlitfill's signature drops the external totsize parameter in favor of one internal source; the field-walk path is untouched, only the ELLIPSIS zero-fill uses the ABI size. cglet's slot allocation stays on the frame size; only the zero-fill extent uses ABI. Gate-blind (the bootstrap exercises none of these shapes); covered by 5 new rows in probe 698 with cs==ww .s byte-cmp and a pre-fix-rebuild proving the exact MOVQ-vs-MOVL discrimination. 990-997 byte-id hold.