similar to: [LLVMdev] GSoC:Loop Reversal Transformation

Hi Matt, All, Thanks for looking into this and your suggestions. I compiled the program with -O3 optimization level (clang -O3) on X86_64 target. After your suggestion, i ran the program with iteration of 10000 runs and found that average runtimes are (attaching data collected as well) Forward loop traverse : 2.006 milli seconds Reverse loop traverse : 1.531 milli seconds Yes, i agree that

For example, I have the following IR code, for.cond.preheader: ; preds = %if.end18 %mul = mul i32 %12, %3 %cmp21128 = icmp sgt i32 %mul, 0 br i1 %cmp21128, label %for.body.preheader, label %return for.body.preheader: ; preds = %for.cond.preheader %19 = mul i32 %12, %3 %20 = add i32 %19, -1 %21 = zext i32 %20 to i64 %22 =

Hi, Is LLVM be able to generate code for the following code? %mul = mul <2 x i32> %1, %2, where %1 and %2 are <2 x i32> type. I am running it on a Haswell processor with LLVM-3.4.2. It seems that it will generates really complicated code with vpaddq, vpmuludq, vpsllq, vpsrlq. Thanks, Zhi -------------- next part -------------- An HTML attachment was scrubbed... URL:

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

I have a dataframe say: date price_g price_s 0.34 0.56 0.36 0.76 . . . . . . and so on. say, 1000 rows. Is it possible to add two columns to this dataframe, by computing say diff(log(price_g) and diff(log(price_s)) ? The elements in the first row of these columns cannot be computed, but

>>>>> peter dalgaard <pdalgd at gmail.com> >>>>> on Fri, 16 Sep 2016 13:33:11 +0200 writes: > On 16 Sep 2016, at 12:41 , Alexis Sarda <alexis.sarda at gmail.com> wrote: >> Hello, >> >> while testing the crossprod() function under Linux, I noticed the following: >> >> set.seed(883)

*** BLURB HERE *** Bean Huo (5): fs/buffer: clean up block_commit_write fs/buffer.c: convert block_commit_write to return void ext4: No need to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c | 24 +++++++-----------------

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

Hello, In a way similar to speexclient voip example, I want to have a voip application where 3 or more users can interact. This creates the following problems "1. How to playback 2 or more audio streams such that they appear overlayed (parallel)". The audio streams are speex encoded. I have few approaches in mind. 1. Create multiple decoder states and multiple ALSA audio playback

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 All, Trying to get familiar with dplyr so I have a basic question: How to summarise sum(Values) per species, maintaining Code column (each species has a Code): Species Values Code 1 Acanthocybium solandri 33 LC 2 Makaira nigricans 20 VU 3 Makaira nigricans 20 VU 4. Makaira nigricans

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

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"

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

date <- as.POSIXlt(Sys.time()) #present date for (i in 1:difftime(as.POSIXlt(Sys.Date()),"2007-10-01")) if (date$wday != 0 & date$wday != 6) {print(date);assign("date", (date-86400))} else (assign("date", (date-86400))) I am trying to print dates from present day to a day in the past, but omitting weekends. I am not doing something right, but can't

Hi Vishal, Ruijie, Thanks for your interest in the project. To get started, the first task would be to merge the 5 patches on top of trunk llvm. The list of patches are listed in the project description: http://llvm.org/OpenProjects.html#llvm_mergesim Please create an account in llvm phabricator (reviews.llvm.org) if you haven't already, and put your patches there. Let me know if you have

Hello, while testing the crossprod() function under Linux, I noticed the following: set.seed(883) x <- rnorm(100) x %*% x - sum(x^2) # equal to 1.421085e-14 Is this difference normal? It seems to be rather large for double precision. Regards, Alexis. [[alternative HTML version deleted]]

Hi useR's, Has anyone used the "Lars" package in R before? If so, is there any tutorial (not manual) or worked out example online for this R package that one can go through to figure out how one can use this package with lasso regression? I appreciate any help I can get in this direction. Sincerely, Vishal -- *Vishal Thapar, Ph.D.* *Scientific informatics Analyst Cold Spring