similar to: [LLVMdev] Implement a Register Allocator in LLVM

Thanks Matthias I can also use the method intervalIsInOneMBB() from LiveIntervals class to relate a LiveInterval to a MachineBasicBlock, right? Em 04/09/2015 2:26 PM, "Matthias Braun" <mbraun at apple.com> escreveu: > There is no direct support for this, but you can use > LiveIntervalAnalysis::getMBBStartIndex()/getMBBEndIndex()/getMBBFromIndex() > to relate the

Good Afternoon. I am a Computer Science undergraduate student in Brazil and as completion of course work, I am developing an register allocator, using the infrastructure of the LLVM. To accomplish this task, I have based my implementation in allocators already implemented in LLVM. But a question came to me while I was researching in books and articles of compiler theory and own documentation of

Hello to all LLVM Developers. Given a object from a LiveInterval class, is there any way to know if this Live Interval is part or is inside a loop? Att -- Natanael Ramos Membro do corpo discente de Ciência da Computação pelo Instituto Federal de Minas Gerais - Campus Formiga -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello to all LLVM Developers. The LLVM IR is in strict SSA form (i.e. every variable is defined before it is used along every path from the entry to exit point)? According to the documentation, currently the LLVM IR is in the SSA form, but I don't see additional information about *strict* SSA form. The strict SSA form provide opportunities of optimization in register allocation, because is

Hello to all LLVM developers. I'm developing a register allocator using LLVM, my allocator has a local search phase: given a solution (assignment of virtual registers to physical registers or memory) generated in the first phase of the algorithm, some movements are applied to this solution in order to find a better solution. To apply such movements, I need to unassign a virtual register from

Ok, just to clarify, RegUnits, as far I understand, are Physical registers or alias to Physical registers. They exist because some instructions use physical registers directly rather than virtual register. It's right? And why this RegUnits should be present in the Interference Graph? I thought were only the Live Intervals would be the nodes of the graph. Sorry about the trouble to

Actually I am trying to run SPEC2006 through the Makefiles provided with LLVM Test Suite, so I think it should work properly... On 18 February 2013 15:49, Adhemerval Zanella <azanella at linux.vnet.ibm.com>wrote: > I can't really tell what is happening based on this output, but 'make' is > not the right way > to build SPECcpu2006 components. You need to do either by

Dear LLVMers, I am implementing a Function Pass and I would like to use analysis obtained from a Module Pass. Some extracts of my code look like that: struct MyPass : public FunctionPass { static char ID; MyPass() : FunctionPass(ID) { PADriver &PD = getAnalysis<AModulePass>(); ... virtual void getAnalysisUsage(AnalysisUsage &AU) const{

Dear LLVMers, I am having trouble to run SPEC2006. I have checked in my log file that the spec root has been correctly found with ./configure, but when I try: make TEST=simple in the External folder I get the following error: make -C /home/izabela/svn_llvm/llvm/projects/test-suite/tools all \ ORIGINAL_CC="clang" \ ORIGINAL_CXX="clang" make[1]: Entering directory

I can't really tell what is happening based on this output, but 'make' is not the right way to build SPECcpu2006 components. You need to do either by using the supplied 'runspec' command with '-build' action directive or to issue the 'specmake' (which is a make adjusted by spec.org) on the build component folder. I can build 433.milc on PPC64 with clang without

Good Night. I'm implementing a Interference Graph in the Register Allocation pass. I'm building this graph BEFORE any assignment of a virtual register to physical register. But I have a doubt about how to check the interference between two Live Intervals (i.e. They live at same point), should I use: L1->overlaps(L2) Where L1 and L2 are two different Live Intervals. Or should I use:

Hi everyone, I'm quite new to LLVM *and doing a Q-learning *(*just a hobby*)* on register allocation for LLVM. RegAllocRL is based on* *RegAllocBase*,* RegAllocBasic and add some feature to implement Q-learning algorithm. * *I*’*ve currently run as MachineFunctionPass and things seem to work in simple case. In order to make progress on training*, *I have questions and want to get some

http://bugzilla.netfilter.org/show_bug.cgi?id=721 Summary: iptables-1.4.11 does not accpet raw udp ports Product: iptables Version: unspecified Platform: i386 OS/Version: other Status: NEW Severity: enhancement Priority: P5 Component: iptables AssignedTo: netfilter-buglog at lists.netfilter.org

Hi, I'm doing a os course at federal university of minas gerais and my final work is to make a change in the linux os. My group decide to create a kind of undelete for ext3. We have already read about this in past threads. What I want to know is how ext3 deletes a file. What it deletes from the inode. thanks. ____________________________________________________________________ Carlos

Dear LLVMers, I am trying to measure the performance overhead (if any) of the canaries that clang inserts in the code. I would like to do this automatically, using the LLVM test infra-structure. However, I am not sure if that is possible. Could someone tell me which flags in the TEST.nightly.Makefile script, (or any other script) I must change to have this done? Usually I insert canaries with

I've installed libvirt and also Virtual Box OSE hypervisor, in order to see if I could properly manage it through virsh. I could easily set up, start, pause, resume, shutdown and destroy the newly created domains, from a XML file. Then I was wondering how could I be able to spawn commands in the domain through virsh, and the command 'console' gave me a the thought that I should

Hi. I executed the following steps to instal a Debina Lenny Vm (as the manual describe): 1)- xe vm-install template="Debian Lenny 5.0 (32-bit)" new-name-label=vmlenny_1 UUID = dd29fd58-9ed2-0d53-5a71-dea5bf0d613b 2)- xe vm-param-set uuid=dd29fd58-9ed2-0d53-5a71-dea5bf0d613b other-config:install-repository=http://ftp.br.debian.org/debian 3)- xe vm-start

Hello. I'm from Federal University of Rio Grande do Sul - Brazil and I'm trying to adapt speex_echo.h (speex-1.2beta3-win32) to our video-conference software code. We are working on amplitude values, but I realised that in order to AEC works, one has to convert amplitude to frequency and filter the echo frequencies. So, my question is: Do I have to manually convert amplitude samples to

Good afternoon. I am having trouble trying to set up shared folders in the guest VM using VirtualBox hypervisor. No matter what configuration is defined in my XML, it never works, I mean, no shared folder is added/specifyed, then, inside the guest, when I try to mount the folder, I always get a protocol error. If I use VirtualBoxManage, I can add/specify shared folders easily and mount it with

Hi, I have worked a little on the PBQP register allocator, and it is quite clear (at least to me) that it is not even a serious alternative to RegAllocGreedy at the moment, due to the poor handling of spilling. As Arnaud wrote below, it is not optimizing spilling at all, but rather just spills anything that does not get an assignment. The result is a lot more spill/reload instructions than