similar to: [LLVMdev] Query on llvm-gcc v/s llc/as

Have you added the $LLVM_INSTALL_DIR/bin to your PATH environment variable? Regarding changing a particular backend, check the documentation in http://llvm.org/docs/WritingAnLLVMBackend.html http://llvm.org/docs/CodeGenerator.html A few LLVMdev meetings have good talks to give you a good enough idea. http://llvm.org/devmtg/ Cheers, Raghu. ----- Original Message ----- From: "Teklu

Hi I am new to llvm and Linux (I am using ubuntu 10) My aim is to add backend to llvm. I install llvm using $ sudo apt-get install llvm and I am able to understand what I read about Writing an LLVM Compiler Backend. I have seen the assembly codes of the targets on llvm using llc. What I need now is to change some of the TableGen files of one of the target like SparcInstrInfo.td.  So I

Hello all, I am trying to modify the Sparc backend to do something for my team's project, to do the following. Whenever the backend encounters a call to one particular type of function names (functions like p0(), p1()..etc), I want the backend to generate a "sethi %g0, <number>", and NOT a "call p0, call p1..." instruction. However, the backend should work as usual

On 1/20/11 12:27 PM, Venkatraman Govindaraju wrote: Just out of curiosity, have either of you considered writing an LLVM transform that simply replaces these call instructions with inline assembly code that does what you want? If that works, it seems much simpler than modifying/enhancing the code generator. -- John T. > I have similar requirements for my project. This is what I do. >

Hi all, I have successfully built LLVM itself, as all the tools (llc et al) are working fine. I built the latest release version (2.7). I have been trying to build the llvm-gcc frontend on a sparc machine. I encountered the following issues : 1) During configuration, the default assembler (installed at /usr/ccs/bin) is chosen to be used, but I want to use the GNU assembler (installed at

Hi Raghu, > Thanks Duncan. Just to make sure I understand correctly, opt has more global information, due to which optimizations can have greater effect than in llvm-gcc, where optimizations are applied on a per-function basis. Is this correct ? if you look carefully at what "opt -O3" runs (using -debug-pass=Arguments) you will see that it first runs a small list of passes (the

I have similar requirements for my project. This is what I do. 1. Add a new intrinsic function to LLVM that corresponds to "functions with particular type of function names". The steps to create intrinsic function is documented in http://llvm.org/docs/ExtendingLLVM.html#intrinsic. 2. Create a lowering pass that lowers "functions with particular type" ( eg. p0, p1) to

For my case, I can't replace these call instructions with inline assembly code because I need to encode the registers into the "number". For instance, if the call instruction is %result = call i32 @foo(i32 %a) and the result is assigned to register %l0 and the variable "a" to register %l1, then I encode all foo, %l0 and %l1 and generate a sethi instruction. thanks,

Thanks Duncan. Just to make sure I understand correctly, opt has more global information, due to which optimizations can have greater effect than in llvm-gcc, where optimizations are applied on a per-function basis. Is this correct ? ----- Original Message ----- From: "Duncan Sands" <baldrick at free.fr> To: llvmdev at cs.uiuc.edu Sent: Tuesday, December 13, 2011 2:46:23 AM

Hi Tim, Thanks for the patch. I had a few questions though - just to make sure that I get the problem correctly. Currently, here is your flow, as I understand it : x86 llvm-gcc binary llc -march=sparc gcc cross/sparc source ---------------------> .bc ------------------> .s -----------------> sparc executable. Is this correct? Or did you manage to build the

On Sep 26, 2010, at 3:23 PMPDT, Raghu Prabhakar wrote: > 1) During configuration, the default assembler (installed at /usr/ccs/bin) is chosen to be used, but I want to use the GNU assembler (installed at /vm/GNU/bin in my machine). In spite of re-arranging paths on the PATH variable, and even after removing /usr/ccs/bin from PATH, configure still chooses the default assembler itself. Is there

Hi everyone, Following my earlier posting (http://lists.cs.uiuc.edu/pipermail/llvmdev/2010-November/036292.html), I sent another message to the list, but it seems like it didn't get through :-( I managed to fix the problem in my earlier post and compile a cross-llvm-gcc. Then I discovered I was having problems with a setting a variable based on a ?: condition. Anyway, I've

Hi Talin, This looks interesting..! Can you email me your tool? Cheers, Raghu. ----- Original Message ----- From: "Renato Golin" <rengolin at systemcall.org> To: "Talin" <viridia at gmail.com> Cc: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu> Sent: Saturday, February 12, 2011 1:31:10 AM Subject: Re: [LLVMdev] Introducing LLBrowse: A

Hi, I am looking to develop an assembler for an experimental ISA, to produce elf binaries. Does LLVM use the GNU assembler internally? Or does it have a modular extension/in-memory representation for an assembly-level IR? I am aware of the existence of the lower level SelectionDAG and MachineInstr components. Do we have a similar, but lower level IR abstraction suitable for assembly?

All, I am the founder and CTO of a new Atlanta area start-up that is a technology incubator and consulting company. We are currently working on building a couple of software as a service apps on the Rails platform. I love working with rails and am trying to get to know more people with rails expertise who are interested in exploring new ventures. Here is the URL to my linked-in profile:

We have 50 complex applications written in Microsoft Visual Basic 6.0 providing banking solutions. We are seriously thinking of porting our applications to Linux under WINE. Is it possible to do so? Nature of our VB applications: ------------------------------ 1. Extensively used all controls provided in VB 2. Total size of our applications is around 2 million lines 3. Applications are having

Hi, I''m having a problem loading a sample data with simple rake command. rake db:fixtures:load When I run the above command,I get the following error $rake db:fixtures:load (in /home/raghu/www/photos) rake aborted! a YAML error occurred parsing /home/raghu/www/photos/test/fixtures/photos.yml. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please

I''m following along with the depot example in ''Agile Web Development'' and ran into a problem with Scaffold. I changed the MySQL table structure to add a few columns directly and also tried the migrate script to change the database after I got the initial scaffolding to work. However, I can''t seem to get the new columns to show up and am stumped as to how I can

Based on the feedback received, I did the following: a) moved my lib sub-directory from the existing installed R version to c:\myRLib b) installed the updated R version c) created .Renviron file in the home directory (C:\R-2.5.1) with the line R_LIBS=c:/myRLib d) used .libPaths() command to confirm that the new R installation was recognizing the myRLib sub-directory e) deleted my old R

Dear Folks, Is there a documented case of earliest use of rsync over internet? I presume rsync was used almost as soon as internet was invented as a file transfer and bandwidth efficient backup solution. If anyone has any information, please respond. -- Raghu Kulkarni