Hojun-Cho
1de1b9a8a9
wcc: module-imported array indexed-load via cg_dotbase_addr (#128b)
...
Fix segfault-class memory corruption on `module.array[i]` indexed-read
where both stages emitted MOVQ-not-LEAQ on the module-qualified base
plus wrong stride. Extends the #135 cg_dotbase_addr/dotbaseaddr helper
to handle the SK_USE module-ident-base case: when bt is NULL/ty_err
and let_islet(base.str) resolves to TY_ARRAY, emit LEAQ base(SB),dst
instead of MOVQ. Wwstage parallel via letvartnode/N_TARRAY check.
Stride fix via let_var_type fallback in cgindex when n.lhs.kind==N_DOT.
Use-site fix per #135 precedent (Option B); preserves cgdot's MOVQ
semantics for the whole-array-assign defensive case (zero current
consumers). Test 915 carries 3 module-u16 indexed-read rows
(strconv.left_shift_table[0/2/4]) + 2 local-array controls; the
strconv.left_shift_table[2]:u32 probe segfaulted (exit 139) pre-fix
and exits cleanly post-fix. Broader width-variation rows (u8/u32/i32
module-imported) deferred as informational enhancement. Test 915
skips its inline cs==ww .s cmp on needs_import rows (line 217-222)
since `ww build` only drives cstage; reviewer externally verified
byte-id on /tmp/k128probe.combined.ww (driver-expanded form, no
imports). Future enhancement: 915 could read the driver-emitted
combined.ww and add a cmp leg there.
Bootstrap NEUTRAL (zero current module.array[i] consumers; strconv
decimal.ww uses IDENT-base from within package). 178/178 incl.
990-997 + combined_ww_fresh green. Sibling bugs #137 (chained N_DOT)
/ #141 (variadic-gather esz==2) / #142 (wwstage primsize-on-alias)
properly deferred to backlog.
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