Hojun-Cho
af1549d9c5
wwstage cgalloc N_STRUCTLIT branch emitted MOVQ AX,foff(BX) for every non-float field. For a str field the cgexpr result is (AX=ptr, BX=len) and the single MOVQ clobbered BX with the heap pointer, dropping len. Mirror cmd/w6c/cgen.c:4184-4190: isstrtype branch routes through CX so BX=len survives. TY_STR only — slice/tagged/fn-pair have the same gap on both stages (task #23, parked behind Phase 2). New test/wcc/758_cgalloc_str_field.c is table-driven (6 rows), fails without the fix under wwstage with predicted exit codes.