syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"(\"popcnt\","}]}
source_snippet:     ("popcnt", Stable, &[]),
context_before:     ("pclmulqdq", Stable, &["sse2"]),
context_after:     ("prfchw", Unstable(sym::prfchw_target_feature), &[]),