syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"zmm27:"}]}
source_snippet:         zmm27: zmm_reg = ["zmm27", "xmm27", "ymm27"] % x86_64_only,
context_before:         zmm26: zmm_reg = ["zmm26", "xmm26", "ymm26"] % x86_64_only,
context_after:         zmm28: zmm_reg = ["zmm28", "xmm28", "ymm28"] % x86_64_only,