[PATCH 3/5] -march=native: REP MOVSB support

If CPU advertises fast REP MOVSB, use it. Inline copy_page() to use only 3 registers across function call not whole shebang as required by ABI. Also, tell gcc to use REP MOVSB for memcpy(), this saves terabytes of .text. Signed-off-by: Alexey Dobriyan --- Makefile

[PATCH 3/5] -march=native: REP MOVSB support

If CPU advertises fast REP MOVSB, use it. Inline copy_page() to use only 3 registers across function call not whole shebang as required by ABI. Also, tell gcc to use REP MOVSB for memcpy(), this saves terabytes of .text. Signed-off-by: Alexey Dobriyan --- Makefile