--- every @class/@stuck/@crack note in this translation unit ---
/* @class: regalloc — MATCH (99 ins). Three coupled levers, all cookbook:
// @class: schedule
// @stuck: none — MATCH (102 ins). MATRIX(0x20:m@0,t@0x14)+SVECTOR in/out stack layout; the only
// @class: struct
// @stuck: none — MATCH expected; param_1 survives jal in $s0, table fp-call with %lo-fold
// @class: branch-polarity
// @stuck: none — MATCH (32 ins), iteration 2. §3-T4: gcc-2.7.2 lays this out as
// @class: struct
// @stuck: none — MATCH (fn-ptr table %lo-fold via extern array of code ptrs)
