QEMU TCG Backend Adaptation

Use this domain skill for host backend work under tcg/<host>/: instruction encoders, TCG_TARGET_HAS_*, constraints, tcg_out_op, qemu load/store paths, vector emission, and generated host-code bugs.

Flow dependencies

1. Start with qemu-flow-plan.
2. Put host-code logs, TCG dumps, temporary disassembly, benchmark notes, and review files under build/agent/<task-slug>/.
3. Use qemu-rlcr-loop for implementation/debug rounds.
4. Use qemu-build for host backend builds.
5. Use qemu-debug for TCG logs and one-insn-per-tb.
6. Use qemu-model-verification for final evidence.

Hard policy boundary

Do not produce source code intended for QEMU upstream submission. Do not add DCO or review trailers.

Backend contract