similar to: [LLVMdev] OptimizeMemoryInst(...) scaling

Dear Community, I'm trying to implement optimization described in PR26223 and meet the following bail out condition in CodeGenPrepare::optimizeMemoryInst. // Break use-def graph loops. if (!Visited.insert(V).second) { Consensus = nullptr; break; } So while traversing thorough phi nodes from memory instruction to find addr mode we bail out if we meet some instruction

Hi, I want to improve the way CGP sinks the incoming values of a PHI node towards memory accesses. Improving it means a lot to some of our key benchmarks, and I believe can benefit many general cases as well. CGP's OptimizeMemoryInst function handles PHI nodes by running AddressingModeMatcher on all incoming values to see whether they reach consensus on the addressing mode. It does a

When multiple GEPs or other operations are used for the address calculation, OptimizeMemoryInst() performs address matching and determines a final addressing expression as a simple form (e.g., ptrtoint/add/inttoptr) and sinks it into user's block so that ISel could have better chance to fold address computation into LDRs and STRs. However, OptimizeMemoryInst() seems to do this transformation

On Nov 20, 2013, at 3:10 PM, Junbum Lim <junbums at gmail.com> wrote: > > > When multiple GEPs or other operations are used for the address calculation, OptimizeMemoryInst() performs address matching and determines a final addressing expression as a simple form (e.g., ptrtoint/add/inttoptr) and sinks it into user's block so that ISel could have better chance to fold address

----- Original Message ----- > From: "Evan Cheng" <evan.cheng at apple.com> > To: "Junbum Lim" <junbums at gmail.com> > Cc: llvmdev at cs.uiuc.edu > Sent: Wednesday, November 20, 2013 7:01:49 PM > Subject: Re: [LLVMdev] sinking address computing in CodeGenPrepare > > > On Nov 20, 2013, at 3:10 PM, Junbum Lim <junbums at gmail.com>

On Nov 20, 2013, at 5:38 PM, Hal Finkel <hfinkel at anl.gov> wrote: > ----- Original Message ----- >> From: "Evan Cheng" <evan.cheng at apple.com> >> To: "Junbum Lim" <junbums at gmail.com> >> Cc: llvmdev at cs.uiuc.edu >> Sent: Wednesday, November 20, 2013 7:01:49 PM >> Subject: Re: [LLVMdev] sinking address computing in

----- Original Message ----- > From: "Evan Cheng" <evan.cheng at apple.com> > To: "Hal Finkel" <hfinkel at anl.gov> > Cc: "LLVM" <llvmdev at cs.uiuc.edu>, "Junbum Lim" <junbums at gmail.com> > Sent: Wednesday, November 20, 2013 7:48:13 PM > Subject: Re: [LLVMdev] sinking address computing in CodeGenPrepare > >

On Nov 20, 2013, at 10:38 PM, Hal Finkel <hfinkel at anl.gov> wrote: > ----- Original Message ----- >> From: "Evan Cheng" <evan.cheng at apple.com> >> To: "Hal Finkel" <hfinkel at anl.gov> >> Cc: "LLVM" <llvmdev at cs.uiuc.edu>, "Junbum Lim" <junbums at gmail.com> >> Sent: Wednesday, November 20, 2013

On Nov 12, 2013, at 11:24 AM, Junbum Lim <junbums at gmail.com> wrote: > > I wonder why CodeGenPrepare breaks GEP into integer calculations (ptrtoin/add/inttopt) instead of directly sinking the address calculation using GEP into user's block. I believe it's primary for address mode matching where only part of the GEP can be folded (depending on the instruction set). Evan

I wonder why CodeGenPrepare breaks GEP into integer calculations (ptrtoin/add/inttopt) instead of directly sinking the address calculation using GEP into user's block. Thanks, Jun On Nov 12, 2013, at 12:07 PM, Evan Cheng <evan.cheng at apple.com> wrote: > The reason for this is to allow folding of address computation into loads and stores. A lot of modern arch, e.g. X86 and arm,

On Nov 21, 2013, at 4:47 PM, Evan Cheng <evan.cheng at apple.com> wrote: > > On Nov 20, 2013, at 10:38 PM, Hal Finkel <hfinkel at anl.gov> wrote: > >> ----- Original Message ----- >>> From: "Evan Cheng" <evan.cheng at apple.com> >>> To: "Hal Finkel" <hfinkel at anl.gov> >>> Cc: "LLVM" <llvmdev at

On Nov 21, 2013, at 10:37 PM, Andrew Trick <atrick at apple.com> wrote: > > On Nov 21, 2013, at 4:47 PM, Evan Cheng <evan.cheng at apple.com> wrote: > >> >> On Nov 20, 2013, at 10:38 PM, Hal Finkel <hfinkel at anl.gov> wrote: >> >>> ----- Original Message ----- >>>> From: "Evan Cheng" <evan.cheng at apple.com>

Hi All, In CodeGenPrepare pass, OptimizeMemoryInst() try to sink address computing into users' block by converting GET to integers? It appear that it have impacts on ISel's result, but I'm not clear about the main purpose of the transformation. FROM : for.body.lr.ph: %zzz = getelementptr inbounds %struct.SS* %a2, i32 0, i32 35 for.body: %4 =

Dear R helpers, I have a 3D scatter plot that I have generated from scatterplot3d (which looks great- thanks!) and I can see that the points in my graph fall in a plane. Following the example 5 from 3D scatter plot (below) I have fitted a regression plane. Now what I would like to do is a rotation so that my new co-ordinate system is about the fitted plane (by finding the normal to the plane

The reason for this is to allow folding of address computation into loads and stores. A lot of modern arch, e.g. X86 and arm, have complex addressing mode. Evan Sent from my iPad > On Nov 12, 2013, at 8:39 AM, Junbum Lim <junbums at gmail.com> wrote: > > Hi All, > > In CodeGenPrepare pass, OptimizeMemoryInst() try to sink address computing into users' block by

I tried to run the following example from section 4.1.4 of the "Scatterplot3d - an R package for Visualizing Multivariate Data" vignette and got an error on the part that plots the regression plane: > library(scatterplot3d) > data(trees) > s3d <- scatterplot3d(trees, type = "h", color = "blue", + angle = 55, scale.y = 0.7, pch = 16, main = "Adding

Dear R users, I was trying to do a 3d scatterplot for the following set of datas: "obj" "time" "X" "Y" "1" "yellow" "333" "388.7" "492.3" "2" "yellow" "567" "388.7" "492.3" "3" "green" "621" "135.5"

Dear R fans, I would like to create a scatterplot showing the relationship between 4 continuous variables. I thought of using the package "scatterplot 3d" to have a 3-dimensional plot and then using the size of the symbols to represent the 4th variable. Does anybody know how to do this? I already tried to create this graph using the colour of the symbols, but I was unable to generate

Hello, I am trying to replicate example 4 in the package 'scatterplot3d': s3d.dat_data.frame(cols=as.vector(col(my.model4)), rows=as.vector(row(my.model4)), value=as.vector(my.model4)) scatterplot3d(s3d.dat, type="h", lwd=5, pch=" ", x.ticklabs=colnames(my.model4), y.ticklabs=rownames(my.model4), main="Conditional probabilities, Model 3") Nice! but,

Hi All. I'd like to programm a 4 dimensional chart in R. Acctually I wanted to solve that problem in Excel cause I had the data there. Here is a link of my actual problem description (there are some chart pictures as well).... http://www.mrexcel.com/board2/viewtopic.php?t=187336&highlight=stacked+column because I still couldn't solve that problem I came to R. The chart should be