Every line is a symptom an agent HIT and had to re-derive from gcc internals because title-keyword
search structurally cannot surface it:
- SIZE-MISMATCH/short + frame-pointer prologue => the target is -O0, pass --o0 (the flag was
documented nowhere an agent would look; a 4th -O0 region also exists beyond the 3 known ones)
- rotated instruction window => sched1 order; brute-force all N! statement orders (24 runs, 2 min)
- if/else result in $v1 vs target's $v0, and load-hoisted-above-store => §76 variable reuse
(§76's title reads behemoth-only, so nobody finds it for a 48-ins function)
- ori 0xffd8 vs addiu -0x28 => negative const in an UNSIGNED narrow local; signed keeps the lhu
- LENGTH-DRIFT -1 as a missing jal-delay copy => narrow ANSI prototyped param (not just K&R §43)
- lwl/lwr+swl/swr is a delay-slot SPONGE (the inverse of the §5a fence case)
- a vanished param copy => cse.c make_regs_eqv live-range rule
- a ghidra_c seed may be a DIFFERENT function (overlays share VAs)
Drew T
d79d8f2356