syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // There are no predefined registers that one can use.
context_before:     // Registers in PTX are declared in the assembly.
context_after:     Nvptx NvptxInlineAsmReg NvptxInlineAsmRegClass {}