_lt_mod_a
"movdqa 0x00(%[lt]), %%" _lt_mod_a "\n" \
"movdqa %%" _lt_mod_a ", %%" _lt_mod_b "\n" \
"pshufb %%" VR0(r) ",%%" _lt_mod_a "\n" \
"pxor %%" _lt_mod_a ",%%" _lt_clmul_a "\n" \
"movdqa 0x20(%[lt]), %%" _lt_mod_a "\n" \
"movdqa %%" _lt_mod_a ", %%" _lt_mod_b "\n" \
"pshufb %%" _a_save ",%%" _lt_mod_a "\n" \
"pxor %%" _lt_mod_a ",%%" VR0(r) "\n" \