[Bug middle-end/103393] [12 Regression] Generating 256bit register usage with -mprefer-avx128 -mprefer-vector-width=128

[rearnsha at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103393

--- Comment #22 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Looking at the different port definitions for MOVE_MAX, it would appear that
only the i386 port seems to be using a value that is not the size of a
general-purpose register.