similar to: [LLVMdev] Lower ConstantExprs into instructions

Hi: For my own Transform passes I need to lower all ConstantExpressions into Instructions in order to conveniently analyze the use-def def-use chains and operand comparisons. Could anyone possibly kindly share some insights on if there is any standard way to do this without crafting my own implementation and if not, should we add this feature into LLVM upstream? Zhang

On Thu, 17 Jun 2004, Patrick Meredith wrote: > How is this done? Everything logical I have tried has failed, here was > one attempt: Can you give a few more details about what you are doing? Are you running the verifier before writing out bytecode? Is your code operating as a pass? Can you send a dump of the generated LLVM code? > Constant *C = (Constant*)

On Thu, 17 Jun 2004, Patrick Meredith wrote: > How is this done? Everything logical I have tried has failed, here was > one attempt: > > Constant *C = (Constant*) ConstantArray::get(inst2string(I)); //fucnction defined elsewhere > > //generates a correct Global string > GlobalVariable *str = new GlobalVariable(C->getType(), true, >

On Tue, Jun 17, 2008 at 8:50 AM, Matthijs Kooijman <matthijs at stdin.nl> wrote: > Hi, > > I've been struggling with constantexprs for a bit. I'm working on a pass that > transforms global variables to local variables, and in particular the > GetElementPtrConstantExpr is a bit troublesome. For my transformation to > properly work, a global value should only be used

How is this done? Everything logical I have tried has failed, here was one attempt: Constant *C = (Constant*) ConstantArray::get(inst2string(I)); //fucnction defined elsewhere //generates a correct Global string GlobalVariable *str = new GlobalVariable(C->getType(), true, GlobalValue::InternalLinkage, C, mkStrName( strNumber++ ), &M); std::vector<Value*>

On Tue, 17 Jun 2008, Matthijs Kooijman wrote: > I've been struggling with constantexprs for a bit. I'm working on a pass that > transforms global variables to local variables, and in particular the > GetElementPtrConstantExpr is a bit troublesome. For my transformation to > properly work, a global value should only be used by Instructions, not by > ConstantExprs. Ok, this

On Jun 18, 2008, at 1:36 AM, Matthijs Kooijman wrote: >> Is it possible to design the pass to work with both? The general >> approach >> is to make stuff handle "User"s instead of Instructions. It is >> much more >> compile time efficient to just handle the two forms rather than >> converting >> them back and forth. > With both I

Hi Chris, > > [ Snip replacing constantexprs with instructions ] > Ok, this is not possible in general though, global variable initializers > have to be constants, not instructions. Yeah, so if not all uses can be replaced, my pass will just have to skip the variable. > Is it possible to design the pass to work with both? The general approach > is to make stuff handle

On Wed, Jun 18, 2008 at 10:19 PM, Chris Lattner <sabre at nondot.org> wrote: > What do you mean? A constantexpr gep can be used as the size of an > alloca. A constantexpr as an argument to an alloca is legal, but a constantexpr can't use an alloca. Suppose you have a global struct, and you load the third member. The IL for this is something like "load i32* getelementptr (

Hi, I've been struggling with constantexprs for a bit. I'm working on a pass that transforms global variables to local variables, and in particular the GetElementPtrConstantExpr is a bit troublesome. For my transformation to properly work, a global value should only be used by Instructions, not by ConstantExprs. I was thinking to add a ConstantExpr::replaceWithInstr() virtual method,

Hi, I am looking for some flow-sensitive (context-insensitive) alias analysis algorithm implemented in LLVM. (I use LLVM 3.9, hope to switch to 4.0 soon.) As far as I know, none of the built-in analysis (basicAA, globals-modref, andersAA, etc.) is intended to be flow-sensitive. So I searched and came across these two 1. https://github.com/unsw-corg/SVF by Yulei Sui (for LLVM 3.8) 2.

Hi, there. I have two questions about using R to create boxplots. 1. The function boxplot() plots the outliers. How can I label the exact values arount these outlier points? Does R have an option allow me to do that? 2. How can I put two boxplots in one x-y axis? Thanks. Yulei $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Yulei He 276 Grove St. Apt 3 Newton, MA 02466 617-796-7834(H)

Dear llvm-dev, After the first successful LLVM developers/users meeting in Google Australia, we (together with Jingling and Dean) will hold our second Sydney LLVM meeting in UNSW, Australia. Here are the details: Date Monday 5th of December 2016 Time 17:30 - 20:00 Location CSE Seminar Room (K17_113) (UNSW Map <http://www.cse.unsw.edu.au/about-us/contact-us/unsw-map/>) We hope to

Dear llvm-dev, After the first successful LLVM developers/users meeting in Google Australia, we (together with Jingling and Dean) will hold our second Sydney LLVM meeting in UNSW, Australia. Here are the details: Date Monday 5th of December 2016 Time 17:30 - 20:00 Location CSE Seminar Room (K17_113) (UNSW Map <http://www.cse.unsw.edu.au/about-us/contact-us/unsw-map/>) We hope to

Hi, there. Can I ask how to set up missing values in R? Suppose I want to assign the missing value to the elements in vector which is greater than zero like this: x<-c(1,3,-1,0,4); after the missing value assignment, x becomes (NA,NA,-1,0,NA). Thanks! Yulei $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Yulei He 1586 Murfin Ave. Apt 37 Ann Arbor, MI 48105-3135 yuleih at umich.edu

Perhaps by "value" you mean points-to set? Either way, flow-sensitivity can only give you more precise -- but still not necessarily exact -- answers. Yours, Andrey === Compiler Architect NXP On Fri, Mar 10, 2017 at 6:39 PM, Flamedoge via llvm-dev < llvm-dev at lists.llvm.org> wrote: > > For a given argument of a call instruction in the cfg: Where does the > value of

Hi, there. I have two questions about the diagnostics in multivarite statistics. 1. Is there any diagnostics tool to check if a multivariate sample is from multivariate normal distribution? If there is one, is there any function doing it in R? 2. Is there any function of testing if two multivariate distribution are same, i.e. the multivariate extension of Kolomogrov-Smirnov test? Thanks for

On Tue, 24 Jun 2008, Matthijs Kooijman wrote: > I'm having a bit of trouble with ConstantExprs currently. In particular, a > global variable A is bitcasted and used in the initializer of another global > variable B (as a struct element). > > B is unused, so it gets whacked and its initializer gets set to NULL. This > succesfully reduces the usecount of the bitcast to 0, but

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Hi, there. Suppose I have a bivarariate data matrix y1 and y2. I want to plot a 3-D picture of the estimated density f(y1, y2) against y1 and y2? How can I do that? Do I use persp() or density()? Thanks for your help. Yulei $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Yulei He 1586 Murfin Ave. Apt 37 Ann Arbor, MI 48105-3135 yuleih at umich.edu 734-647-0305(H) 734-763-0421(O) 734-763-0427(O)