* gcc.dg/compat/fp2-struct-check.h: New file.
* gcc.dg/compat/fp2-struct-defs.h: New file.
* gcc.dg/compat/fp2-struct-init.h: New file.
* gcc.dg/compat/struct-by-value-10_main.c: New file.
* gcc.dg/compat/struct-by-value-10_x.c: New file.
* gcc.dg/compat/struct-by-value-10_y.c: New file.
* gcc.dg/compat/struct-return-10_main.c: New file.
* gcc.dg/compat/struct-return-10_x.c: New file.
* gcc.dg/compat/struct-return-10_y.c: New file.