similar to: [LLVMdev] Help with understanding LLVM

On Mar 15, 2010, at 8:15 PM, kalyan ponnala wrote: > Hi, > > I am trying to understand LLVM. Can an expert tell me how to compare the kaleidoscope implementation with the LLVM's compiler implementation. I mean can anyone tell me about the lexer, parser, codegen related .cpp and .h files inside the LLVM solution project. I would like to understand the LLVM's compiler in the same

Hi, I went through the front end part of the clang (a bit atleast) and I went through some of the documentation on the llvm.org website and was trying to know what happens after the front end is done with the code. Could you tell me how does llvm comes into picture as soon as clang part of the interface deals with the source code. Thanks. On Tue, Mar 16, 2010 at 12:55 AM, Bill Wendling

Hello, I was going through the LLVM docs "writing an LLVM Pass". Can someone tell me how to create the Hello.so file as it is said in the document. It talks about compiling the Hello pass using gmake. I am a Windows user (windows 7, cmake, visual studio 9 2008). I cant use cmake here as this hello pass has links to the llvm's solution file, I mean It uses some of the header files

Hi ! The Hello world pass sources are in llvm/lib/Transform/Hello/* If you compile llvm, the Hello library will be compiled too. It's not installed but it's in build_directory/Debug/lib/LLVMHello.so (or in build_directory/Release/lib/LLVMHello.so) Olivier. On Sun, Apr 18, 2010 at 7:35 AM, kalyan ponnala <ponnala.kalyan at gmail.com>wrote: > Hello, > > I was going

Hi, I am using visual studio 2008's generated solution file for clang/llvm. I was looking at the online demo where it gives out llvm2cpp program along with the llvm IR of the C code. I could not find any executable in the /bin directory for llvm2cpp. I was wondering if there is either source or executable of the llvm2cpp program that is used by llvm demo available for either llvm-2.7

Thanks duncan and samuel. I guess the optimization about striping dead prototypes was not working because of "no dead prototypes" to strip. The -std-compile-opts option works. I can see a change. And @samuel, I tried the clang's -o0 optimization level compiling, but I could not find any difference with or without that switch in the bitcode file generated. I used this command: clang

Thanks a lot for the reply guys. So, does that mean that I cant write my own passes if I work on Windows side of the LLVM? Is there any other way to use a new pass. How are windows users supposed to work? Thanks again. On Sun, Apr 18, 2010 at 7:16 AM, Anton Korobeynikov <anton at korobeynikov.info > wrote: > > If you compile llvm, the Hello library will be compiled too. It's

Hello group, Per my posting on the Clang Newsgroup. I'm interested in doing some loop optimizations, towards this end I would like to add some custom Metadata to a Loop header. Loops in LLVM are represented using BasicBlocks, but unfortunately you can NOT add MetaData to a BasicBlock. Although you can add Metadata to an instruction. So I'm proposing to add the Metadata manipulation

Hi, I would like to know if the command llc -march=c hello.bc generates a c99 file or not. Is the cbackend target meant to be c99 or normal C. -- Kalyan Ponnala phone: 8163772059 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100219/e67c7a73/attachment.html>

Hello Kalyan, There is one more thing you should know: Clang has maximum optimization turned on by default. You need to specify -O0 to turn it off if you want to see what opt does without clang running all of the optimizations first. --Sam ----- Original Message ---- > From: Duncan Sands <baldrick at free.fr> > To: llvmdev at cs.uiuc.edu > Sent: Sat, April 17, 2010 2:00:00 AM

Hello, I am trying to build llvm/clang using cmake and visual studio 2008 on windows vista. I want to convert the llvm bitcode file hello.bc into C code. I saw in the documentation that "llc -march=c hello.bc" would convert the bitcode and generate a c code file. but it says llc:error: invalid target "c" could you tell me why is it not working. and what is the way to convert

Hi, Could someone tell me how does a part of the source code get translated into metadata in the LLVM IR. and what kind of code gets parsed into metadata. Thanks -- Kalyan Ponnala phone: 8163772059 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100320/cd883472/attachment.html>

> If you compile llvm, the Hello library will be compiled too. It's not > installed but it's in build_directory/Debug/lib/LLVMHello.so (or in > build_directory/Release/lib/LLVMHello.so) Loadable passes are not supported on windows due to lack of OS dynamic linking support (and I doubt they will be supported ever). -- With best regards, Anton Korobeynikov Faculty of Mathematics

Hello, I am trying to understand the opt tool. I wrote a program and created the .bc file using clang. And I used this .bc file to generate another .bc file using the opt tool. I dis-assembled this bitcode file and compared the output with previous unoptimized bitcode file. It was the same. I am not sure how to check the difference. Can anyone tell me if this is how we check the optimized output

Hi, According to the LLVM 2.6 Release Notes, it states: "LLVM now has experimental support for embedded metadata in LLVM IR, though the implementation is not guaranteed to be final and the .bc file format may change in future releases." Can someone please comment on it's status? Thanks, -- Kalyan Ponnala phone: 8163772059 -------------- next part -------------- An HTML

I'm going through the Kaleidoscope tutorial, adding the codegen() functions: https://llvm.org/docs/tutorial/LangImpl03.html. I cannot find any discussion of header files to include, (other than the include of llvm/ADT/STLExtras.h in the lexer/parser code), and the compilation is failing due to several undefined symbols: LogErrorV, Value, LLVMContext, APFloat, and others. I've been hunting

On Sun, Feb 14, 2010 at 3:52 PM, kalyan ponnala <ponnala.kalyan at gmail.com>wrote: > I used cmake gui to build the clang/llvm solution file. > llc hello.bc -march=x86 -o hello.s > this above command works. But the c backend thing does not work in place of > x86. > The targets that the llc -version gave me are > x86 -32bit > x86 - 64bit > and the target triple is

On Sep 10, 2012, at 3:34 PM, Bob Wilson wrote: > Didn't Benjamin already fix this in svn 163502? Looks that way.. > On Sep 10, 2012, at 10:08 AM, Chad Rosier <mcrosier at apple.com> wrote: > >> >> On Sep 7, 2012, at 3:40 PM, Nuno Lopes wrote: >> >>> The linking issue is a recent breakage. >>> I traced it back to r163175. Basically

I've just committed the first two chapters of my ocaml llvm bindings tutorial by porting the Kaleidoscope tutorial to ocaml. These chapters are the lexer and parser. If anyone is interest in trying it out, I'd love any feedback. If you've got the svn trunk checked out, you'll find the docs here: docs/tutorial/OCamlLangImpl1.html docs/tutorial/OCamlLangImpl2.html If not, you can

Hi Kalyan, > opt -strip-dead-prototypes -f <filename.bc> filename2.bc you have to specify the list of passes to run. -strip-dead-prototypes only removes unused declarations. If there are none, it will do nothing. Try: opt -std-compile-opts -f <filename.bc> filename2.bc Ciao, Duncan.