similar to: [LLVMdev] MMX/SSE subtarget feature in IR

Thanks Kevin for the reply. I got the point now :) On 10 Apr 2015 00:18, "Smith, Kevin B" <kevin.b.smith at intel.com> wrote: > For x86_64 ABI, a minimum feature set of SSE2 is required. > > > > Kevin > > > > *From:* llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] *On > Behalf Of *suyog sarda > *Sent:* Thursday, April 09,

Your clang invocation below works for me, and generates target triple in the llvm IR of i386. And then in the specific options for the functions it generates the following: ; Function Attrs: nounwind define float @foo() #0 { entry: ret float 1.000000e+00 } attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"= "true"

I've been working on adding AVX to LLVM and have run across a number of questions. Here's the first one. In some ways AVX is "just another" SSE level. Having AVX implies you have SSE1-SSE4.2. However AVX is very different from SSE and there are a number of sub-features which may or may not be available on various implementations. So right now I've done this: def

Another php type problem; can you please try again. Thanks! On Thu Dec 11 2014 at 1:37:32 PM Bruno Cardoso Lopes < bruno.cardoso at gmail.com> wrote: > I'm facing the same problem. > > On Thu, Dec 11, 2014 at 10:16 AM, suyog sarda <sardask01 at gmail.com> wrote: > > Hi, > > I am facing problem while submitting patch on phab. All things go smooth > - >

Hi Manuel, Thanks for the help. Still persists for me too. Instead of waiting indefinitely, now I get this error: Unhandled Exception ("AphrontDeadlockQueryException") #1205: Lock wait timeout exceeded; try restarting transaction On Thu, Dec 11, 2014 at 11:26 AM, suyog sarda <sardask01 at gmail.com> wrote: > The problem still persist :( > > On 12/11/14, Manuel Klimek

Hi Arnold, Thanks for your reply. I tried test case as suggested by you. *void foo(int *a, int *sum) {*sum = a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6]+a[7]+a[8]+a[9]+a[10]+a[11]+a[12]+a[13]+a[14]+a[15];}* so that it has a 'store' in its IR. *IR before vectorization :*target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" target triple =

Thanks Nadav for the info. It clears my query :) Yes its an integer ADD, and since AVX2 supports 256 bits integer arithmetic, so its cost is less than AVX1. One query though - shouldn't then the cost of integer ADD/SUB/MUL (which would be 1) be explicitly specified in AVX2 cost table? Because right now this entry is missing and cost of these operations are taken from BaseTTI (which is

Hi Suyog, Thanks for looking at this. This has recently got itself onto my TODO list too. > I am not sure how much all this will improve the code quality for horizontal reduction > (donno how frequently such pattern of horizontal reduction from same array occurs in real world/SPECS). Actually the main loop of 470.lbm can be SLP vectorized like this. We have three parts to it: A fully

Hi, All, Duncan, Rafael, David, Nick. This is regarding pattern matching in InstructionCombine pass. We use 'match' functions many times, but it doesn't do the pattern matching effectively. e.x. Lets take pattern : (A ^ B) | ((B ^ C) ^ A) -> (A ^ B) | C (B ^ A) | ((B ^ C) ^ A) -> (A ^ B) | C Both the patterns above are same, since ^ is commutative in Op0. But,

Hi, I am facing problem while submitting patch on phab. All things go smooth - create diff, create revision, specify title and comments. However, when I try to submit the diff by clicking "save" button, it takes a lot of time and eventually times out, failing to submit the patch. Any help on this? On Thursday, December 11, 2014, Manuel Klimek <klimek at google.com> wrote: >

Hi Nadav, Thanks for the quick reply !! Ok, so as of now we are lacking capability to handle flat large reductions. I did go through function vectorizeChainsInBlock() (line number 2862). In this function, we try to vectorize if we have phi nodes in the IR (several if's check for phi nodes) i.e we try to construct tree that starts at chains. Any pointers on how to join multiple trees? I

On Wed, Dec 10, 2014 at 2:38 PM, Jonathan Roelofs <jonathan at codesourcery.com > wrote: > I think the send-email part of phab has yet to come back up. > Yes, restarting it would be very helpful. > > > Cheers, > > Jon > > > On 12/10/14 1:59 PM, Manuel Klimek wrote: > >> Phab is back up - it's still a little slow (the mysql database we use is

Hi all, I have a query regarding Cost Table for AVX2 in TargetTransformInfo. The table consist of entries for shift and div operations only. There are no entries for ADD, SUB and MUL for AVX2 cost table. Those entries are present in Cost Table for AVX. The reason for query is - when my sub target feature is AVX2, in SLP Vectorization, while calculating scalar cost of ADD, it doesn't see

Phab is back up - it's still a little slow (the mysql database we use is doing some cleanups). On Wed Dec 10 2014 at 5:07:07 PM suyog sarda <sardask01 at gmail.com> wrote: > And i was thinking something wrong with my proxy configuration :P > > On Wed, Dec 10, 2014 at 6:47 PM, Manuel Klimek <klimek at google.com> wrote: > >> Heya, >> >> if you wonder

On 30-Apr-09, at 6:38 PM, Dan Gohman wrote: > On Apr 30, 2009, at 3:02 PM, David Greene wrote: >> As I've been going along I've added feature flags for SSE4a and >> SSE5. These >> really do need to be separate feature flags because having SSE4a and/ >> or SSE5 >> does not imply that you have SSE4.2 or SSE4.1. So they can't be >> part of the

On Thu, Dec 11, 2014 at 1:29 AM, Manuel Klimek <klimek at google.com> wrote: > On Thu Dec 11 2014 at 2:16:00 AM Alexey Samsonov <vonosmas at gmail.com> > wrote: > >> On Wed, Dec 10, 2014 at 2:38 PM, Jonathan Roelofs < >> jonathan at codesourcery.com> wrote: >> >>> I think the send-email part of phab has yet to come back up. >>>

Hi Duncan, David, Sean. Thanks for your reply. > It'd be interesting if you could find a design that also treated these > the same: > > (B ^ A) | ((A ^ B) ^ C) -> (A ^ B) | C > (B ^ A) | ((B ^ C) ^ A) -> (A ^ B) | C > (B ^ A) | ((C ^ A) ^ B) -> (A ^ B) | C > > I.e., `^` is also associative. Agree with Duncan on including associative operation too.

Thanks Sean for the reference. I will go through it and see if i can implement it for generic boolean expression minimization. Regards, Suyog On Wed, Aug 13, 2014 at 2:30 AM, Sean Silva <chisophugis at gmail.com> wrote: > Re-adding the mailing list (remember to hit "reply all") > > > On Tue, Aug 12, 2014 at 9:36 AM, suyog sarda <sardask01 at gmail.com> wrote:

Heya, if you wonder why phabricator is down - it's an upgrade that is running a database update that takes a while (probably 3-5 more hours). I'll update this thread once it's finished and phab is up again. Cheers, /Manuel -------------- next part -------------- An HTML attachment was scrubbed... URL:

Heya, I'll look into it first thing tomorrow - probably a problem with the encoding settings. On Thu Dec 11 2014 at 9:17:40 PM Robinson, Paul < Paul_Robinson at playstation.sony.com> wrote: > What I'm seeing is that Phabricator emails double-space *everything* > (not just the diffs). > > --paulr > > > > *From:* cfe-dev-bounces at cs.uiuc.edu