similar to: [LLVMdev] CFG using LLVM

Hi, I am a new user of LLVM. I am using it as the IR for a compiler for a subset of LUA. I have the .ll file ready and it executes fine when passed to the llvm interpreter. Now, I wish to perform a few optimizations to the code starting with dead code elimination. For this I would need the CFG. I am very new to all of this stuff. Please help me out guys. The way I want to proceed is to start at

May be you need to debug your code and see. Rajika On Sun, Jan 31, 2010 at 9:48 AM, Hersh.S. Iyer <coolhersh at gmail.com> wrote: > Hello, > > I am learning to write passes in LLVM and currently using LLVM 2.6. I > followed the steps mentioned to write the helloworld pass and when i run it > using opt, I get a Seg Fault. Not able to figure out why this is happening. > It

Hi, I wish to implement dead code elimination as a pass in llvm. This is not the same as unreachable block. For this, I plan to go ahead like this : In each function Identify the store and branch operations Identify the operands involved in these operations. Build the UD chain of these and check if there is any variable that is not used and mark its definition (the entire instruction)

Hello, I am learning to write passes in LLVM and currently using LLVM 2.6. I followed the steps mentioned to write the helloworld pass and when i run it using opt, I get a Seg Fault. Not able to figure out why this is happening. It would be great if someone can point out where I am going wrong. Thanks. Hersh. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi All, The other thing we have noticed after booting is, screen is completely blank. GUI is not visible on attached monitor. We tried switching between different terminals using (Ctl+Alt+F1-12). F2-6 are showing command line terminals but, others are returning blank screen only. It appears that, there is some problem with GUI/gnome. Is there any way to fix this? Please help. Regards Hersh On

Hi, I'm confused about the entry and exit blocks of an LLVM CFG. I understand that every CFG has one and only one entry block, and this is confirmed by the existence of the getEntryBlock function in the Function class. But what about exit (a.k.a. return) blocks? At first I assumed that LLVM CFGs have one and only one exit block, too, but the following code is a counter-example:

Dear Trevor, I'm too lazy to convert your .dot file into a graph file, but I'll make some comments anyway. :) First, LLVM does not guarantee that a function has a single exit block. Multiple basic blocks can have a return instruction as their terminator instruction. There is a pass (Unify Function Exit nodes i.e., -mergereturn <http://llvm.org/docs/Passes.html#mergereturn>)

Hi, I have been using VNC on CentOS 7 server from last couple of months and it was running all fine till last night. Unfortunately, there was an abrupt power failure and system got restarted. Now, when I try to login with VNCviwer, it thrown an error message- "*Gnome - oh no! Something has gone wrong "* with a logout option. When I click on logout, I see black/dark gray screen with 3

Hi, I have recently installed centOS 7 and trying to start vnc server on it. Somehow, I am unable to make vncserver working. I have modified iptable rules and xstartup file but it did not help. Has anyone else faced this problem earlier? Any help would be appreciated. Regards Hersh

HI Sridhar, Try this: #I saved the file as .csv. ?testMaster<-read.csv("test1Master.csv") ?test2Sorted<-read.csv("test2Sorted.csv") testMaster1<-testMaster[order(testMaster[,1]),] test2Sorted1<-test2Sorted[order(test2Sorted[,1]),] Combinedat<-as.matrix(merge(testMaster1,test2Sorted1,by="X")) ?rownames(Combinedat)<-Combinedat[,1]

There were no live connections. The problem what we had was more related to OS requirement for some software. This drive was not in a bad shape. On 12 July 2016 at 23:03, Gordon Messmer <gordon.messmer at gmail.com> wrote: > On 07/12/2016 09:52 AM, Hersh wrote: > >> There was some problem with our system so I re-installed the server with >> CentOS 7. Now, when I am

Hi, I am unable to build the letor module. I am generating the configure file using autoconf. The configure file generated is throwing the error ./configure: line 2057: syntax error near unexpected token `1.10.1' ./configure: line 2057: `AM_INIT_AUTOMAKE(1.10.1 -Wportability tar-ustar)` I am not too sure what to do with this. Need help with this. Thank You Regards Karthik On Mon, Sep 29,

Hi, I am running VMware player on CentOS 5.4 and its working fine. However it does not allow me to increase the RAM more than 3GB. ?It keeps throwing error stating- "Requested memory size is greater than allowed maximum of 3072 MB. Could not initiate memory hot plug."? I understand from few threads that 32bit OS has this kind of limitation but I am able to understand why I am seeing

Hi All We want to install packages like xfig and transfig on centos 5.5. We found rpms available but them but it seems there are lot of dependencies for these packages. So we would like to setup yum repo for this. Can anyone suggest trusted baseurl for yum repo? Regards Hersh -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I am C Karthik Iyer, a 3rd year B Tech student at NITK Surathkal. I am interested in working on projects on Information Retrieval and Machine Learning. I've had previous experience on working on projects regarding Question Answering Systems. I have a project idea which includes both IR and ML but i dont know how feasible the idea is. Could you guys say when will you be available

Guys, OK, now that we have the new core contributors squared away, we can go back to finishing the contributors list. There were some people who got added and then there is existing contributors list. I think Darren''s suggestion to wait to add new core contributors is fine (let the new constitution settle down and we can in the meanwhile have a more inclusive look at both rather than

On Thu, Jul 7, 2016 at 2:00 PM, Hersh <parikhh1 at gmail.com> wrote: > Hi Venkata, > > Can you please let me know the steps which you have followed for > re-installing the GNOME? I am having a similar problem on one of our > system. > To my understanding, when you install centos-7 with options ServerGUI or GNOME Desktop and leave the system for long time locked, you will

----- Original Message ----- From: "John Criswell" <criswell at illinois.edu> To: "Wenbin Zhang" <zhangwen at cse.ohio-state.edu> Cc: <llvmdev at cs.uiuc.edu> Sent: Friday, August 27, 2010 5:09 PM Subject: Re: [LLVMdev] how to check whether from basicblock A we can go to basicblock B within the same function? > Wenbin Zhang wrote: >> Dear all,

Hi John, It seems the dereferencing a NULL pointer is undefined behavior but Calling a function through a null pointer seems o.k. If so , for this place, we need comment out the check. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#232 look at Notes from the October 2003 meeting. Yin From: John Criswell [mailto:criswell at illinois.edu] Sent: Wednesday,

Hi, There was some problem with our system so I re-installed the server with CentOS 7. Now, when I am trying to run 'fdisk -l' command, it is returning a broken output. It throws this error- "fdisk: cannot open /dev/sdc: Input/output error". There are valid /dev/sdd and /dev/sde devices which are mounted and they are accessible but, somehow /dev/sdc is having a problem and