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* builtins.c (unterminated_array): Pass in c_strlen_data * to c_strlen rather than just a tree *. (c_strlen): Change NONSTR argument to a c_strlen_data pointer. Update recursive calls appropriately. If caller did not provide a suitable data pointer, create a local one. When a non-terminated string is discovered, bubble up information about the string via the c_strlen_data object. * builtins.h (c_strlen): Update prototype. (c_strlen_data): New structure. * gimple-fold.c (get_range_strlen): Update calls to c_strlen. For a type 2 call, if c_strlen indicates a non-terminated string use the length of the non-terminated string. (gimple_fold_builtin_stpcpy): Update calls to c_strlen. From-SVN: r264712
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