syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // we have no way of expressing this using clobbers.
context_before:                     // Technically the low 64 bits of v8-v15 are preserved, but
context_after:                     v0, v1, v2, v3, v4, v5, v6, v7,