(JumpTable idx) => (JUMPTABLE {makeJumpTableSym(b)} idx (MOVDaddr <typ.Uintptr> {makeJumpTableSym(b)} (SB)))

// atomic intrinsics
// Note: these ops do not accept offset.
(AtomicLoad8   ...) => (LDARB ...)
(AtomicLoad32  ...) => (LDARW ...)
(AtomicLoad64  ...) => (LDAR  ...)
(AtomicLoadPtr ...) => (LDAR  ...)

(AtomicStore8       ...) => (STLRB ...)
(AtomicStore32      ...) => (STLRW ...)
(AtomicStore64      ...) => (STLR  ...)