On Thu, 11 Jul 2024, Jakub Jelinek wrote: > With the CPP_NUMBERs around it, I believe in the C FE the only places which > need handling of the CPP_EMBED token are initializer parsing (that is the > only one which adds actual optimizations for it), comma expressions (I > believe nothing really cares whether it is 25,13,95 or > 25,13,0,1,2,3,4,5,6,7,8,9,10,13,95 etc., so besides the 2 outer CPP_NUMBER > the parsing just adds one INTEGER_CST to the comma expression, I doubt users > want to be spammed with millions of -Wunused warnings per #embed) and > whatever uses c_parser_expr_list (function calls, attribute arguments, > OpenMP sizes clause argument, OpenACC tile clause argument. Please correct > me if I'm wrong.
I think c_parser_get_builtin_args is also relevant. In most cases a list of 4 or more elements wouldn't be valid, but for __builtin_shufflevector you can have such a list of integers are part of the arguments. -- Joseph S. Myers josmy...@redhat.com
