From the S76 func_80032A74 agent (422 ins, 408 -> 12).
Refines §153: the launder was necessary but created an allocno outranking the
value it was protecting; the cure was pinning the launder itself to $10 — and
NOT $8, which evicts reload's $t0 parameter reloads. So '§461: the launder is
the defect' has a third resolution beyond remove-it or move-it: pin it, and
choose the register with reload's own needs in mind.
New general fact: $t0 is unreachable from C because reload owns it — the
target's table bases are reload rematerialisations of a reg_equiv_constant
there. A residual of the form 'the target uses $t0 and I cannot' is a reload
artifact, not an unfound spelling.
Also pairs with §463/§469: a frame slot nothing reads is either an 8-byte
rounded spill or a §172 combine USE-orphan — both reproducible, neither
padding.
Drew T
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