Hojun-Cho 6354f5267c w6c+selfhost: cgassign N_DOT N_INDEX-lhs branch (closes #16) ...

Symmetric write-side counterpart of #8, bundled across both stages.
cstage [N]Struct write was broken (1986 gated on TY_PTR); wwstage had
no N_DOT(N_INDEX) write branch at all. New branch covers both
[N]*Struct and [N]Struct via viaptr flag, uses fldstoreop for
scalar/sub-word, MOVSS/MOVSD for float, two-MOVQ for str rhs.
Compound (PLUSEQ etc.) wired for integer scalar.

2026-05-14 00:09:46 +09:00

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