https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70314
--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> ---
We now generate for the original testcase
vpcmpd $1, %zmm3, %zmm2, %k1
vpcmpd $1, %zmm1, %zmm0, %k0{%k1}
vpmovm2d %k0, %zmm0
which looks great.
However, using | instead of &, we get
vpcmpd $1, %zmm1, %zmm0, %k0
vpcmpd $1, %zmm3, %zmm2, %k1
kmovw %k0, %eax
kmovw %k1, %edx
orl %edx, %eax
kmovw %eax, %k2
vpmovm2d %k2, %zmm0
Well, at least gimple did what it could, and it is now up to the target to
handle logical operations on bool vectors / k* registers. There is probably
already another bug report about that...
