syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // of ymm6-ymm15 are volatile.
context_before:                     // mark them as clobbered anyways because the upper portions
context_after:                     xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,