From the two cast-at-use reconcile lanes (27 agents on drafts the gate DROPPED for in-TU decl
conflicts, not codegen). 24 reconciled to MATCH, 19 banked.
§320 — §43 and §183 item 4 both record the return-type flip pair (TU says void, body materializes
$v0 on every exit) as TU-EDIT-REQUIRED IMMOVABLE. It is not: three agents broke it three ways in a
single lane, each byte-proven.
1. §202 asm-label alias — s32 aF800CCBC0(void) __asm__("func_800CCBC0") — TU untouched
(func_800CCBC0 138/138 first try; func_800D30D0 76/76).
2. register $2 + input-only asm barrier before a bare return, with the early exit routed through
a goto to a SHARED label — measured bound: inline in the if body is NEAR closeness 10, shared
exit is MATCH (func_800D2A24).
3. Adopt the TU's own old-style K&R decl rather than writing a prototype (func_800CB1CC 47/47).
Plus: when every caller discards the result a TU void->s32 widening IS byte-neutral, but MEASURE it
(null-draft rebuild must still give 143dbb89…) — done twice here. And the process trap that cost a
pass: gate_main snapshots and RESTORES the TU between passes, so an uncommitted TU edit is reverted
before the gate sees it.
§321 — two anonymous struct typedefs are distinct types to gcc-2.7.2 even when spelled identically,
so a file-scope duplicate is fatal while the SAME TEXT at block scope is only a warning and is
codegen-neutral. Three dials, all byte-proven: demote to block scope; or hoist and delete the local
copy; or name a local typedef for its OWN address (SVEC_8017E07C, not a neighbour's SVEC_8017E158).
Not a cast-at-use case — the conflict is type IDENTITY, not width.
Drew T
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