search for: comiss

...ot;: fcmp une == unordered not equal == A is NaN, B is NaN, or A != B fcmp one == ordered and equal == A is not NaN, B is not NaN, and A != B Both of these can be implemented with the x86 unordered comparison instruction by performing certain tests on the EFLAGS result. But if we used the comiss instruction (and exceptions weren't masked) then we'd take an exception if either A or B was a NaN. Look at the C file I've attached, where I start by unmasking exceptions and then perform what's essentially an "one" comparison. LLVM implements this with ucomiss, and gets...

...C syntax the code looks like this: float x, y; int a, b, c if(x == y) // Rotate the integers { int t; t = a; a = b; b = c; c = t; } This is the resulting x86 assembly code: movss xmm0,dword ptr [ecx+4] ucomiss xmm0,dword ptr [ecx+8] sete al setnp dl test dl,al mov edx,edi cmovne edx,ecx cmovne ecx,esi cmovne esi,edi While I'm pleasantly surprised that my branch does get turned into several select operations as intended (cmov - condi...

...e online demo, and it uses FCMP_OEQ. No, if you have: x = NaN y = NaN then the comparison: (x == y) is false. Which is what your seeing from your first post and is the standard IEEE expected behavior. Why I expected your min/max question to be related, consider the flags of 'comiss, ucomiss, etc.' : ZPC unordered 111 greater than 000 less than 001 equal 100 Try the following C program with gcc, first with no options and then with --ffinite-math-only (or --ffast-math) ----------- #defi...

Both ZF and PF will be set if unordered, so the code below is IEEE correct...you want to generate 'fcmp ueq' instead of 'fcmp oqe' This is the resulting x86 assembly code: movss xmm0,dword ptr [ecx+4] ucomiss xmm0,dword ptr [ecx+8] sete al setnp dl test dl,al mov edx,edi cmovne edx,ecx cmovne ecx,esi cmovne esi,edi While I'm pleasantly surprised that my branch does get turned into several select operations as intended (cmov - condi...

Hello, I''ve tried just some minutes ago to download the sourcecode of lustre from [1], but it failed with this error: An error occurred while processing your request. Reference #50.663007d9.1206002944.16ba5fe1 Does anybody have some hints how to get the lustre source code then? I need this tarball for the debian packaging. If someone could point me to an alternative download

Hi All, I'm still pretty new to using R - and I was hoping I might be able to get some advice as to how to use 'apply' or a similar function instead of using nested for loops. Right now I have a script which uses nested for loops similar to this: i <- 1 for(a in Alpha) { for (b in Beta) { for (c in Gamma) { for (d in Delta) { for (e in Epsilon) { Output[i] <-

...v] Float compare-for-equality and select optimizationopportunity Both ZF and PF will be set if unordered, so the code below is IEEE correct...you want to generate 'fcmp ueq' instead of 'fcmp oqe' This is the resulting x86 assembly code: movss xmm0,dword ptr [ecx+4] ucomiss xmm0,dword ptr [ecx+8] sete al setnp dl test dl,al mov edx,edi cmovne edx,ecx cmovne ecx,esi cmovne esi,edi While I'm pleasantly surprised that my branch does get turned into several select operations as intended (cmov - condi...

But this is another case. LLVM IR distinguishes between ordered and unordered compare and X86 backend has appropriate instructions. But during DAG selection we just lose this information and always generate unordered fcmp. I.e. in case of ordered fcmp the vcomiss should be generated, and in case of unordered - vucomiss. - Elena -----Original Message----- From: Dr D. Chisnall [mailto:dc552 at hermes.cam.ac.uk] On Behalf Of David Chisnall Sent: Thursday, August 29, 2013 10:50 To: Tim Northover Cc: Demikhovsky, Elena; llvmdev at cs.uiuc.edu Subject: Re: [...

....p.northover at gmail.com> wrote: > If so, a compare that used that instruction would have to become more > like an "invoke" with a landingpad for the exception and so on, > wouldn't it? The current fcmp can already distinguish between ordered > and unordered, because ucomiss provides that information. There are currently lots of limitations in the expressiveness of LLVM IR for floating point operations (e.g. distinguishing between trapping and non-trapping cases and representing the floating point environment). If anyone wants to fully implement the floating point pa...

Hi, I'm looking at scalar and packed instructions in X86. The instruction VCOMISS is scalar. May I remove SSEPackedSingle/SSEPackedDouble domain from it? defm VUCOMISS : sse12_ord_cmp<0x2E, FR32, X86cmp, f32, f32mem, loadf32, "ucomiss", SSEPackedSingle>, TB, VEX, VEX_LIG; defm VUCOMISD : sse12_ord_cmp<0x2E, FR64, X86cmp,...

...and dc01 - Used to be a 4-Dc setup but 02 and 03 are gone), I've noticed the following errors which I am unable to fix.. Any hints? * Basic dbcheck is clean. [root at dc00 ~]# samba-tool dbcheck Checking 327 objects Checked 327 objects (0 errors) * Cross-NCS shows two errors related to a de-comissionned DC (dc02) and cannot auto-fix this.. How do I fix those errors? [root at dc00 ~]# samba-tool dbcheck --cross-ncs --fix --yes Checking 3574 objects ERROR: no target object found for GUID component for link fromServer in object CN=4b3f95b1-7774-42cf-8bc0-755c7d29f6cc,CN=LostAndFoundConfig,C...

...following errors which I am unable >> to fix.. Any hints? >> >> * Basic dbcheck is clean. >> >> [root at dc00 ~]# samba-tool dbcheck >> Checking 327 objects >> Checked 327 objects (0 errors) >> >> * Cross-NCS shows two errors related to a de-comissionned DC (dc02) >> and cannot auto-fix this.. How do I fix those errors? >> >> [root at dc00 ~]# samba-tool dbcheck --cross-ncs --fix --yes >> Checking 3574 objects >> ERROR: no target object found for GUID component for link fromServer >> in object >> CN...

...web far-and-wide for a solution. I eventually contacted Darren Sessions -- who was maintaining that plug-in -- about a month ago. He was involved in another project and said he might be able get to it after a few weeks. But, since then, his website http://www.darrensessions.com/ has gone out of comission. I think we may be on our own on this one! Todd ----- Forwarded Message ---- From: Todd Fulton <todd.fulton at yahoo.com> To: Todd Fulton <todd.fulton at yahoo.com> Sent: Wednesday, August 26, 2009 10:59:34 AM Subject: [asterisk-users] app_swift issue Hello I have installed...

On 29 August 2013 06:31, Demikhovsky, Elena <elena.demikhovsky at intel.com> wrote: > Should I open a ticket for this? I think he was saying this is intended behaviour. Isn't the difference between ucomiss and comiss just whether an exception is raised for NaN? If so, a compare that used that instruction would have to become more like an "invoke" with a landingpad for the exception and so on, wouldn't it? The current fcmp can already distinguish between ordered and unordered, because u...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (It would be probably good idea to redirect this discussion to -stable@, redirected) Hi, Danny, Danny Braniss wrote: > It's no longer working (for me) under 7.2, and so far > I am not getting any feedback, so since it seems that > this particular hardware has reached EOL, I was wondering > if, > a) it's true, > b) drop

...ide the country. There are already 2 future phases set to happen - one for i18n and another for adding e-commerce - for which there''ll be dedicated budgets for programming. Also, there are plans to sell this image bank to one of the blockbuster operations out there (corbis or getty), and a comission deal might be worked out. if you''re interested, please contact me at email: trabalho at oliverbarnes dot com msn messenger: oli_azevedo_bar at hotmail dot com google talk: ol1barn3s aim: oliver azevedo b skype: digiberber happy new year, Oliver

...d / Unordered FP compare are not handled properly on X86 On Wed, Aug 28, 2013 at 2:16 AM, Demikhovsky, Elena <elena.demikhovsky at intel.com<mailto:elena.demikhovsky at intel.com>> wrote: I found that there is no diff in code generator for Ordered / Unordered FP compare instructions. FUCOMISS, FUCOMISD are generated in the both cases. Yes. That's how fcmp is defined in LangRef. -Eli --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recip...

...d 03 are gone), I've noticed the following errors which I am unable > to fix.. Any hints? > > * Basic dbcheck is clean. > > [root at dc00 ~]# samba-tool dbcheck > Checking 327 objects > Checked 327 objects (0 errors) > > * Cross-NCS shows two errors related to a de-comissionned DC (dc02) > and cannot auto-fix this.. How do I fix those errors? > > [root at dc00 ~]# samba-tool dbcheck --cross-ncs --fix --yes > Checking 3574 objects > ERROR: no target object found for GUID component for link fromServer > in object > CN=4b3f95b1-7774-42cf-8bc0-755...

...able to fix.. Any hints? > >> > >> * Basic dbcheck is clean. > >> > >> [root at dc00 ~]# samba-tool dbcheck > >> Checking 327 objects > >> Checked 327 objects (0 errors) > >> > >> * Cross-NCS shows two errors related to a de-comissionned DC (dc02) > >> and cannot auto-fix this.. How do I fix those errors? > >> > >> [root at dc00 ~]# samba-tool dbcheck --cross-ncs --fix --yes > >> Checking 3574 objects > >> ERROR: no target object found for GUID component for link > >> fro...

Can someone recommend a good web host for ROR? -- Posted via http://www.ruby-forum.com/.