similar to: Re: [LLVMdev] Compile a linux kernel with LLVM?

ymxia at nudt.edu.cn wrote: > When I compiled a linux kernel, gccas was used to compile assembly code. > > But gccas cannot recognize the line comment character "#" of gnu assembler, > > and abort the compile with reporting a error "syntax error, unexpected $undefined". > > I watch llvm/tools/gccas, but donot known how to add this function in it. >

Hi Reid, Now, I've removed the file and updated the source tree with this command: cvs -z3 -d :pserver:anon at llvm-cvs.cs.uiuc.edu:/var/cvs/llvm update -PdR llvm However, the file still exits. Henrik. >From: Reid Spencer >Date: Mon, 20 Jun 2005 10:57:54 -0700 > >Hi Henrik, > >You don't have the latest C/C++ Front End Source code. Please update >from CVS to get

Hi, I'm a newbie and just installed LLVM on a Linux box. I followe "The LLVM Getting Started Guide" on the web and have some trouble on the section "An Example Using the LLVM Tool Chain". When I compile the simple hello.c program with "llvmgcc hello.c -o hello", the system complains -- gcc: installation problem, cannot exec `gccas': Permission denied. Does

On Fri, Feb 18, 2005 at 11:30:45AM -0600, Feng Chen wrote: > However, although the configuration and installation process doesn't > report any error/warning, the llvmc cannot work. It just says: > Unexpected unknown exception occurred :( > > Do you have any clue about that? Have you compiled and installed llvm-gcc/llvm-g++? llvmc is not a compiler, it's just a compiler

On May 5, Misha Brukman wrote: > Maybe we can use you for a testimonial... :) Certainly. > > Tail Call Elimination: > > > > I've read over the "Random llvm notes", and see that you guys have > > though about this already. > > > > However, the note dates from last year, so I am wondering if there is > > an implementation in the works.

On Thu, May 05, 2005 at 03:46:58AM -0400, Alexander Friedman wrote: > On May 5, Misha Brukman wrote: > > To the best of my knowledge, this has not been done and no one has > > announced their intent to work on it, so if you are interested, > > you'd be more than welcome to do so. > > My C++ knowledge is completely non-existant, but so far I've had a >

This didn't work as I tried with 197.parser. it works without "-Wl,-disable-opt" switch though. [197.parser]$ llvm-gcc analyze-linkage.c and.c build-disjuncts.c extract-links.c fast-match.c idiom.c main.c massage.c parse.c post-process.c print.c prune.c read-dict.c utilities.c xalloc.c word-file.c strncasecmp.c -Wa,-disable-opt -Wl,-disable-opt -lm -o llvm_parser [197.parser]$

On Thu, 5 May 2005, Misha Brukman wrote: > On Thu, May 05, 2005 at 03:46:58AM -0400, Alexander Friedman wrote: >> On May 5, Misha Brukman wrote: >>> To the best of my knowledge, this has not been done and no one has >>> announced their intent to work on it, so if you are interested, >>> you'd be more than welcome to do so. >> >> My C++ knowledge

Hi Guys I'm trying to port and build the GCC Front End to the Interix environment. I've succeded until the xgcc program executes: /usr/local/src/cfrontend/build/gcc/xgcc -B/usr/local/src/cfrontend/build/gcc/ -B/usr/local/src/cfrontend/install//i586-pc-interix3/bin/ -B/usr/local/src/cfrontend/install//i586-pc-interix3/lib/ -isystem

Actually, Misha, that won't work. The -C option is used directly in docs/Makefile. So the change will have to go into docs/Makefile. Either that or upgrade install to version 5. Reid. On Thu, 2005-02-17 at 11:33, Misha Brukman wrote: > On Thu, Feb 17, 2005 at 01:21:20PM -0600, Feng Chen wrote: > > llvm[1]: Installing HTML documentation > >

LLVM list, I bumped into Alex Friedman in the hall today and by coincidence he mentioned that they were switching to LLVM for their PLT Scheme JIT project. I had evaluated LLVM a few weeks ago for my own purposes, but decided that it was too C/C++ centered and that critical features such as tail call optimization and other stack manipulation features were likely stagnant. So naturally I asked

On Mon, 11 Jul 2005, Long Fei wrote: > > This didn't work as I tried with 197.parser. it works without > "-Wl,-disable-opt" switch though. > > [197.parser]$ llvm-gcc analyze-linkage.c and.c build-disjuncts.c > extract-links.c fast-match.c idiom.c main.c massage.c parse.c post-process.c > print.c prune.c read-dict.c utilities.c xalloc.c word-file.c

I am investigating some inlining issue, so I did llvm-gcc aaa.c bbb.c ... nnn.c -o output opt -inline -inline-threshold=xxx < output.bc | llc -march=c > output_inline.c 1) I noticed that even if I set xxx to 0 or even a very small negative number, many functions are eliminated. I am wondering if these functions are inlined by the frontend, or identified as deadcode. For instance,

On Thu, May 05, 2005 at 09:47:50AM +0400, Vladimir Prus wrote: > > Actually, the -instcombine pass already does this. Please try it > > out and let me know if it doesn't do what you want. > > It does work! For some reason, I was assuming that running 'opt' > without arguments would run some "reasonable" set of optimizations, > while in reality, it

Hi all LLVMor, I just tried to compile a simple code and analyze the number of the basic blocks. But after compile, what I got, the bytecode is seems to be optimized bytecode. So the information of basic blocks is not what I expected. I want ot use the code as example to see how some of code optimization methods work. However, after compiling file using llvm test.c -o test, bytecode file

On Wednesday 04 May 2005 18:34, Chris Lattner wrote: > On Wed, 4 May 2005, Vladimir Prus wrote: > > %tmp.aux = cast bool %tmp.24 to int > > %tmp.x = xor int %tmp.aux, 1 ; negates tmp.24 > > %tmp.xx = cast int %tmp.x to bool > > %tmp.y = or bool %tmp.xx, %tmp.24 ; will be always true > > br bool %tmp.y,

Long Fei wrote: > > I am investigating some inlining issue, so I did > > llvm-gcc aaa.c bbb.c ... nnn.c -o output > opt -inline -inline-threshold=xxx < output.bc | llc -march=c > > output_inline.c I am unsure of whether the LLVM GCC frontend does any inlining. However, I do know that your methods above run the LLVM inlining pass, albeit indirectly. If you use

Suppose, I have a Pass1 implemented as a subclass of Pass, with source code in the directory of llvm source base( transform/analyze ) I can run that pass through opt on the bytecode emitted by gcc frontend through opt tool. However, I want that Pass1 to be the part of the actual GCC compiler. I want to know how I can position Pass1 among other passes /optimizations/ code generations. e.g if

Hi, Alexander! On Wed, May 04, 2005 at 11:59:06PM -0400, Alexander Friedman wrote: > I am in the preliminary stages of adding a JIT compiler to a sizable > Scheme system (PLT Scheme). Cool! > The original plan was to use GNU Lightning, but 1) it seems to be > dead, and 2) LLVM has already done a huge amount of stuff that I would > have had to write (poorly) from scratch. Maybe

Hi, I want to check some properties of linux kernel with llvm, but I don't know how to compile a linux kernel to an llvm's .bc file. I have let llvm's gcc front-end ignore inline assembly by modifying cfrontend/src/gcc/llvm-expand.c, and replace CC/as/ar in the Makefile of the kernel with llvm-gcc/llvm-as/llvm-ar. However, the linux's "make" reports errors: