similar to: [LLVMdev] Trying to optimize out store/load pair

Hello all, My app is using LLVM JIT as a runtime engine for image analysis (similar to opencl). I'm placing values into a struct to pass byref to a series of functions. After running the createStandardModulePasses(...) set of optimizations, the function calls are all inlined but the struct store/load pairs haven't been optimized away. I've attached the code below. What I'd like to

How can I get the name of the virtual Registers present on an instruction. eg. %add18 = add nsw i32 %mul17, %37 in this case I want to extract the name of the virutal registers as "add18", "mul17","37". This can easily be done in the case of store Instruction eg. store i32 %add20, i32* %t, align 4 in this case functions like

Hello. I'm having problems at instruction selection with my back end with the following basic-block due to a vector add with immediate constant vector (obtained by vectorizing a simple C program doing vector sum map): vector.ph: ; preds = %vector.memcheck50 %.splatinsert = insertelement <8 x i64> undef, i64 %i.07.unr, i32 0

I have cloned an instruction from one basic block to another newly created block in newly created function. And since am cloning an instruction the operands of that instruction still points to the instructions of old block. Due to which am getting an error as "Instruction does not dominate all uses!". example:- original function and block:- %a = alloca i32, align 4 %x = alloca

On Sep 29, 2010, at 8:35 AMPDT, Ralf Karrenberg wrote: > Hello everybody, > > I have stumbled upon a test case (the attached module is a slightly > reduced version) that shows extremely reduced performance on linux > compared to windows when executed using LLVM's JIT. > > We narrowed the problem down to the actual code being generated, the > source IR on both systems

"Or use <<- assignment I think. (I usually return, but return can only return one object and I think you want two or more" You can return any number of objects by putting them in a list and returning the list. Use of "<<-" is rarely a good idea in R. -- Bert On Fri, Aug 9, 2024 at 1:53?AM CALUM POLWART <polc1410 at gmail.com> wrote: > > OK. The fact

Thanks. Hmm. The loop is doing what it is supposed to do. > try1<-function(joint12=FALSE,marg1=FALSE,marg2=FALSE, +??????????????? cond12=FALSE,cond21=FALSE){ + # *************************************************** + # Testing if loop + # *************************************************** + if(joint12){ +?? {print ("joint12"); cat(joint12,"\n")} +?? {print

OK. The fact it's in a function is making things clearer. Are you trying to update the values of an object from within the function, and have them available outside the function. I don't speak functional programming articulately enough but basically v <- 1 funA <- function() { v <- v+1 } funA() cat (v) # 1 You either return the v from the function so funB <- function() {

Is something wrong in the initialisation part that we don't see? joint12 <- marg1 <-F marg1 <-T if (joint12) { print ("joint 12") cat (joint12) } if (marg1) { print("marg 1") cat(marg1) } Would probably be my diagnostic approach On Fri, 9 Aug 2024, 04:45 Steven Yen, <styen at ntu.edu.tw> wrote: > Can someone help me with the if loop below?

Can someone help me with the if loop below? In the subroutine, I initialize all of (joint12,marg1,marg2,cond12,cond21) as FALSE, and call with only one of them being TRUE: ,...,joint12=FALSE,marg1=FALSE,marg2=FALSE,cond12=FALSE,cond21=FALSE,,,, joint12 seems to always kick in, even though I call with, e.g., marg1 being TRUE and everything else being FALSE. My attempts with if... else if were

The following (using if else) did not help. Seemed like joint12 always kicked in. ??? me1<-me0<-NULL. ??? if(joint12){ ????? {me1<-cbind(me1,v1$p12);? me0<-cbind(me0,v0$p12)} ??? } else if(marg1) { ????? {me1<-cbind(me1,v1$p1);?? me0<-cbind(me0,v0$p1)} ??? } else if(marg2) { ????? {me1<-cbind(me1,v1$p2);?? me0<-cbind(me0,v0$p2)} ??? } else if(cond12){ ?????

Hello everyone, please I need your help. To reproduce my problem I created simple pass for backends (TestPass.cpp in attached files). That pass I call from Mips backend in this way (MipsTargetMachine.cpp): bool MipsPassConfig::addPreRegAlloc() { addPass(createTestPass()); return false; } The problem becomes, when I am trying compile file ldtoa.ll (in attached files). Compiling

Hi In the following codes, I had to choose between printing (= TRUE) or deliver something for grab (ei, vi). Is there a way to get both--that is, to print and also have ei and vi for grab? Thanks. Steven ... out<-round(as.data.frame(cbind(ap,se,t,p)),digits) out<-cbind(out,sig) out<-out[!grepl(colnames(zx)[1],rownames(out)),] if(printing){ cat("\nAPPs of bivariate ordered

?s 09:51 de 11/08/2024, Steven Yen escreveu: > Hi > > In the following codes, I had to choose between printing (= TRUE) or > deliver something for grab (ei, vi). Is there a way to get both--that > is, to print and also have ei and vi for grab? Thanks. > > Steven > > ... > > out<-round(as.data.frame(cbind(ap,se,t,p)),digits) > out<-cbind(out,sig) >

Thanks. Will try it. Have not tried it but I think the following may work: out$results<-NULL out$results$ei<-ap out$results$vi<-vap All I need is printing by returning out (unless I turn it off). And, retrieve ap and vap as needed as shown above. Guess I need to read more about invisible. On 8/11/2024 10:09 PM, Rui Barradas wrote: > ?s 09:51 de 11/08/2024, Steven Yen escreveu:

Hello everybody, I have stumbled upon a test case (the attached module is a slightly reduced version) that shows extremely reduced performance on linux compared to windows when executed using LLVM's JIT. We narrowed the problem down to the actual code being generated, the source IR on both systems is the same. Try compiling the attached module: llc -O3 -filetype=asm -o BAD.s BAD.ll Under