search for: kand

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2016 Oct 20
2
[AVX512BW] Nasty KAND issue
...%r0, <i1 -1, i1 -1, i1 -1, i1 -1> At the IR level the all1s mask looks like the Identity for this operation, so LLVM will remove it. But it is not the Identity since this operation should clear the top 4 bits of the 8 bit hardware register in play. E.g. kmovb -4(%rsp), %k0 kandb %k0, %k1, %k0 kmovb %k0, -4(%rsp) I began tracking down this issue and found that InstCombine will incorrectly remove the AND. Then I noticed that the Reassociate pass would also remove the AND if InstCombine did not. That made me nervous. My current thinking is that this might be a l...
2016 Oct 20
2
[AVX512BW] Nasty KAND issue
...tity since >> this operation should clear the top 4 bits of the 8 bit hardware >> register in play. E.g. > > No, this operation alone does not need to clear the upper bit, they are undefined before and after. > > >> >> kmovb -4(%rsp), %k0 >> kandb %k0, %k1, %k0 >> kmovb %k0, -4(%rsp) >> >> I began tracking down this issue and found that InstCombine will >> incorrectly remove the AND. Then I noticed that the Reassociate pass >> would also remove the AND if InstCombine did not. That made me >> ne...
2016 Oct 20
2
[AVX512BW] Nasty KAND issue
...hould clear the top 4 bits of the 8 bit hardware >>>> register in play. E.g. >>> No, this operation alone does not need to clear the upper bit, they are undefined before and after. >>> >>> >>>> kmovb -4(%rsp), %k0 >>>> kandb %k0, %k1, %k0 >>>> kmovb %k0, -4(%rsp) >>>> >>>> I began tracking down this issue and found that InstCombine will >>>> incorrectly remove the AND. Then I noticed that the Reassociate pass >>>> would also remove the AND if Inst...
2010 Aug 30
3
paperclip gem install failed
when i''m installing paperclip gem its return err (i18n requires RubyGems version >= 1.3.6) the os is ubuntu 10.04 64bit -nirosh- -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send
1998 Mar 17
26
Newbie Question
Does Samba allow me to mount NT (disks) file systems on my Unix (SGI) box? Randy -- Randy Fox Coryphaeus Software, Inc. Sr. Software Engineer 985 University Ave. Suite 31 rfox@coryphaeus.com Los Gatos CA, 95030 www.coryphaeus.com Tel: 408/395-4537 Fax: 408/395-6351