syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"ymm13:"}]}
source_snippet:         ymm13: ymm_reg = ["ymm13"] % x86_64_only,
context_before:         ymm12: ymm_reg = ["ymm12"] % x86_64_only,
context_after:         ymm14: ymm_reg = ["ymm14"] % x86_64_only,