syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"zmm9:"}]}
source_snippet:         zmm9: zmm_reg = ["zmm9"] % x86_64_only,
context_before:         zmm8: zmm_reg = ["zmm8"] % x86_64_only,
context_after:         zmm10: zmm_reg = ["zmm10"] % x86_64_only,