extern "Builtins"

[Thierry Delisle]

gcc and clang support thousands of builtin functions which cforall must know about. Both gcc and clang lists these builtins using a custom internal format which is difficult to copy.

Some of these builtins, especially the platform specific ones, are mostly wrapped in extern inline functions and listed in headers.

A "simple" approach to supporting these would be to add a special tag to these functions so that they are added to the symbol table, but the definition is not result and simply code generated as-is.

Packaging these as extern "builtins" {/*...*/} would allowing including the wrapper headers and automatically get support for a large section of the blueprint functionnality.