{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"|"}]}
| SPARC        | `r1`/`g1`                               | Used internally by LLVM. |
| SPARC        | `r0`/`g0`                               | This is always zero and cannot be used as inputs or outputs. |
| SPARC        | `r5`/`g5`                               | Reserved for system. (SPARC32 only) |