similar to: [LLVMdev] Re: questions about LLVM

Shuo, >> I have a few questions about LLVM: >> (1) The LLVM tutorial says LLVM can be used in architecture research. >> If I want to run my program on an instruction set defined by myself, >> is LLVM a right tool to do that? What kind of instruction set do you have in mind? The closer it is to one we already target, the easier this is, but it is quite possible to

On Mar 12, 2007, at 10:34 AM, Fabian Scheler wrote: > After playing around a bit with LLVM, I > decided to use LLVM, because of its great documentation, its clean and > straight-forward design and it because it seems to be easily > applicable also for beginners. A gratuitous plug for a recent research project: If you use LLVM, you can also get a compiler called SAFECode that (a)

Hello everybody, I'm developing a source code transformation system for real-time systems currently, i.e. I want to map the application (a set of event handlers) to a run-time or operating system semi-automatically (if anybody is interested in the background - see below, of course, comments are welcome there, too ;-)). Therefore, I have to be able to express dependencies between different

Prof. Adve, The idea is to develop a memory model where each byte is extended with 3 extra bits. Programs are running on this memory model. Load/store instructions, including those in LibC functions, needs to deal with the extra bits in a certain manner. Basically, my questions are: (1) Is it feasible to implement the memory model where each byte is extended with 3 extra bit? (2) Is there a

Hi, I want to explorer affection of compiler on low power. For the project background, I tend to process this work via LLVM, rather than GCC. And the Target is ARM. For this purpose, clang(3.2) + arm-gcc + simplescalar-arm(and panalyzer) seems to be a good choice. But I encounter several problems in the processing of setup the environment. ---------------------------------- 1. Firstly, arm

Thank you for your answers and suggestions! Well, I want to do some experiments about the compiler optimization in llvm under SPM and I need performance evaluation. As I know, alpha is a general-purpose CPU, so I consider that arm may be an alternative. Simplesim-arm is able to do performance simulation while m5-arm is still under development. Then, what should I do? Do the experiment under

It use to. alphasim (the validated alpha model based on simplescalar) is better though. Also, since no one has needed to run simplescalar experiments, the alpha backend has bitrotted some. The last version that I know worked with most of spec was llvm 1.8 or so. You need to get or write an elf64 loader and fix a couple instruction implementations in simplescalar to get it to run linux binaries

hello everyone, I'm wondering whether llvm can work together with simplescalar. Would anyone please give me some clarification? Thanks a lot!

hello everyone, I'm wondering whether llvm can work together with simplescalar. Would anyone please give me some clarification? Thanks a lot!

Hi, I'm a student who is going to make a countermeasure for dangling pointers in c for his thesis. I need to make my source transformation using llvm. Nobody in my university already used LLVM. I already read a some documentation about llvm but i'm still lost. Do there exist some " examples/Tutorials" for making small source transformations. Or is there somebody who can help

On Sunday 15 June 2008 22:30, Andrew Lenharth wrote: > It use to. alphasim (the validated alpha model based on simplescalar) > is better though. Also, since no one has needed to run simplescalar > experiments, the alpha backend has bitrotted some. The last version > that I know worked with most of spec was llvm 1.8 or so. You need to > get or write an elf64 loader and fix a

Simplescalar is not compatible with llvm because the binutils simplescalar is based on is ancient. Jim On Sep 26, 2012, at 12:21 AM, 陳奕梅 <ymchen at sslab.cs.nctu.edu.tw> wrote: > Dear all > > I use arm-linux-gcc 2.95.2, because the code generated by version 3.X and 4.X can not run on SimpleScalar. > So I use the arm-linux-gcc 2.95.2 *only*, the version is recommended by

We are using simplescalar 3.0 as an architecture simulation platform for our research. The current version of the simplescalar still uses gnu binutils 1.5. and gcc-2.7.2 to generate 32bit mips code. We are currently trying to replace gcc-2.7.2 by LLVM current. However, the generated code cannot be processed by this old binutils-1.5. We expect that it can be quite difficult to make simplescalar use

Dear all I use arm-linux-gcc 2.95.2, because the code generated by version 3.X and 4.X can not run on SimpleScalar. So I use the arm-linux-gcc 2.95.2 *only*, the version is recommended by SimpleScalar. The code generated by arm-linux-gcc 2.95.2 can run on SimpleScalar. Now I want to use llvm/clang to generate ARM assembly code and arm-linux-gcc 2.95.2 to be assembler. Unfortunately, I got some

I don't think I ever said that the MIPS target is broken. I am simply trying to branch out one additional llc target for SimpleScalar PISA architecture. On Fri, Oct 7, 2011 at 2:41 PM, Jim Grosbach <grosbach at apple.com> wrote: > I reiterate. You should fix the simulator. It is broken. The compiler is > not. Fix what's broken. > > -Jim > > On Oct 7, 2011, at 1:11

I am using SimpleScalar cross-compiler 2.95.2 ( http://www.simplescalar.com/v4test.html) On Thu, Jun 18, 2009 at 3:30 PM, Anton Korobeynikov <anton at korobeynikov.info > wrote: > Hello > > > hello.s:6: Error: Unknown pseudo-op: `.eabi_attribute' > How old is your arm toolchain? > > -- > With best regards, Anton Korobeynikov > Faculty of Mathematics and

Hello, I'm trying to evaluate the performance improvement of instruction scheduling on one of the inorder ARM processor, I was looking for ARM simulator and I found two (Simplescalar/ARM and SimIt-ARM) The code generated using llvm-2.9 and llvm-gcc and gcc 3.2. I used these command : $ llvm-gcc -O3 -o test1.bc -c --emit-llvm test1.c $ llc -O3 -o test1.s -march=arm test1.bc -mcpu=strongarm110

Hi, for our micro-architecture research, we are using simplescalar 3.0 32bit mips simulator, which comes with binutils 1.5.2, and the ld fails at "lui" (bfd error). However, the ld is happy with "la" (assembler macro) and simulator correctly simulates. On Wed, Oct 5, 2011 at 5:04 PM, Eric Christopher <echristo at apple.com> wrote: > > On Oct 5, 2011, at 4:01 PM,

> I am using SimpleScalar cross-compiler 2.95.2 (http://www.simplescalar.com/v4test.html) It's really ancient. Consider upgrading to something not from stone age :) I doubt you'll be able to assemble anything generated by, for example, with mainline gcc. -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

wow... Tell me, what cross compiler can I use for ARM if I am working in a i686-Linux machine? At the same time, how I can simulate it? But the way, If I deleted the unknown pseudo-op and change section .rodata definition, I can use my stone age cross compiler. I am just wondering why it works without them. Thanks in advance. On Thu, Jun 18, 2009 at 4:26 PM, Anton Korobeynikov <anton at