syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"zmm12:"}]}
source_snippet:         zmm12: zmm_reg = ["zmm12"] % x86_64_only,
context_before:         zmm11: zmm_reg = ["zmm11"] % x86_64_only,
context_after:         zmm13: zmm_reg = ["zmm13"] % x86_64_only,