On Wed, Sep 2, 2020 at 2:33 AM Hongtao Liu via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > Hi: > Add define_peephole2 to eliminate potential redundant conversion > from mask to vector. > Bootstrap is ok, regression test is ok for i386/x86-64 backend. > Ok for trunk? > > gcc/ChangeLog: > PR target/96891 > * config/i386/sse.md (VI_128_256): New mode iterator. > (define_peephole2): Lower avx512 vector compare to avx version > when dest is vector. > > gcc/testsuite/ChangeLog:
Missing PR target/96891 > * gcc.target/i386/avx512bw-pr96891-1.c: New test. > * gcc.target/i386/avx512f-pr96891-1.c: New test. > * gcc.target/i386/avx512f-pr96891-2.c: New test. > > -- > BR, > Hongtao -- H.J.
