similar to: [LLVMdev] User-specified JIT passes

On Oct 28, 2007, at 10:38 PM, Warren Armstrong wrote: > Greetings, > > I have a plan to use LLVM to undertake runtime optimisation of > computational chemistry programs. Ok. > As part of this, I'd like to be able > to invoke lli and pass it a list of passes to run, in the manner of > opt. For example: > >> lli -load=llvm/mem_trace_pass/bin/lib/hello.so -hello

Is there a simple way to require a pass, e.g., Reg2Mem/Mem2Reg, to run before/after my transformation pass? Or do I do something like: struct myOpt { myOpt() { mBefore = createDemoteRegisterToMemoryPass(); mAfter = createPromoteMemoryToRegisterPass(); } getAnalysisUsage(AU) { AU.addRequired(my stuff); mBefore.getAnalysisUsage(AU); mAfter.getAnalysisUsage(AU); }

Hi All, I've just started investigating LLVM for use in a project of mine, and I've got a couple of questions: 1. How does LLVM support run-time optimisation - i.e: which elements of the toolchain will optimise a running bytecode / binary? 2. Is there a way, with the existing infrastructure, to do adaptive compilation using the JIT interpreter? Watching said interpreter through GDB

Hey, I have a situation where in I need to intercept a call to a particular function and return a pointer to a separate implementation of that function using JIT. The scenario is like this: 1. A test code or client code calls a function A() for which a dummy implementation is provided in a library which the test code/client links with during compilation. 2. I create the .bc using -emit-llvm and

On Jun 22, 2009, at 2:19 PM, Kasra wrote: > Hi, > > for some reason I could not get the machine code generator for x86 > working. The interpreter is the only thing that works, is there > anything that I am missing here? This recently changed. In your main program, please #include "llvm/ Target/TargetSelect.h" and call InitializeNativeTarget(); before setting up

Hi, for some reason I could not get the machine code generator for x86 working. The interpreter is the only thing that works, is there anything that I am missing here? -- Kasra -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090622/89dca208/attachment.html>

Dear all, I hope you enjoy your christmas! Recently I started to play lli with bc. I found that the lli only calls the main() function in bc file and then does nothing before the main() function returns, which means that the JIT::runFunction() function is involved only once with the main() function in bc file. If this was true, then lli does not have any control to the execution of program.

On Wed, Dec 30, 2009 at 7:53 PM, Heming Cui <heming at cs.columbia.edu> wrote: > Dear all, >      I hope you enjoy your christmas! Recently I started to play lli with > bc. I found that the lli only calls the main() function in bc file and then > does nothing before the main() function returns, which means that the > JIT::runFunction() function is involved only once with the

On 5/7/2012 12:21 AM, Bendersky, Eli wrote: <snip> > > MCJIT is functional in trunk (and the 3.1 branch). While it doesn't include all the features of the old JIT quite yet, it's complete enough to pass all of JIT's execution tests on Linux and Mac OS X (no Windows yet). As for directions on how to enable it, follow the path of the "use-mcjit" flag passed to lli

Török Edwin wrote: > Are you using 2.6 or 2.7, 32-bit or 64-bit? > I use 2.7 on i386. lli has debug asserts enabled, but I guess this shouldn't matter for JIT code speed. jit: 11.32 real exe: 7.64 user Both have -O3 option. Speed should be the same. Yuri

Hi all, I'm struggling to get lli work on qemu-system-arm. I already boot the system with a debian squeeze rootfs which contains a statically cross-compiled lli for armel. When I run ./lli hello.bc, I got the following error msg: ./lli: error creating EE: /lib/: cannot read file data: Is a directory afaik, this error is related to lli using dlopen() with a NULL path to resolve symbols for

Hi, I'm using LLVM/clang from release 3.0. I have a program (C++) that will load a library in the form of LLVM bit code using the JIT. However, I see JIT errors when loading the bit code: "LLVM ERROR: JIT does not support inline asm" I read that MC JIT intends to fix this. I'm trying to build LLVM from the lastest trunk. Is there any special/extra thing to do to use

Hello, there are several optimization levels in lli like O0, O1, O2, O3. What does they mean? how the run time optimization is performed in LLVM JIT? I am working on a project where my goal is to study the impact of lli optimizations. here my IR is already optimized through opt. now i have to perform lli optimizations provided i am giving varying inputs at run time. so i suppose here my

> Hi, > I'm using LLVM/clang from release 3.0. I have a program (C++) that will load > a library in the form of LLVM bit code using the JIT. However, I see JIT errors > when loading the bit code: > > "LLVM ERROR: JIT does not support inline asm" > > I read that MC JIT intends to fix this. I'm trying to build LLVM from the > lastest trunk. Is

On Mon, Jun 22, 2009 at 4:43 PM, Chris Lattner <clattner at apple.com> wrote: > > On Jun 22, 2009, at 2:19 PM, Kasra wrote: > > Hi, > > for some reason I could not get the machine code generator for x86 > working. The interpreter is the only thing that works, is there > anything that I am missing here? > > This recently changed.  In your main program, please

On Tue, Aug 10, 2010 at 1:35 PM, Eric Christopher <echristo at apple.com> wrote: > > On Aug 10, 2010, at 1:30 PM, Bueno, Denis wrote: > >> Running lli under gdb gives >> >> Program received signal SIGSEGV, Segmentation fault. >> [address] in ?? () >> (gdb) bt >> #0 [address] in ?? () >> Cannot access memory at address [address2] >>

Hello! I am trying to create an R optimization routine for a task that's currently being done using Excel (lots of tables, formulas, and Solver). However, otpim seems to be finding a local minimum. Example data, functions, and comparison with the solution found in Excel are below. I am not experienced in optimizations so thanks a lot for your advice! Dimitri ### 2 Inputs:

> On 5/7/2012 12:21 AM, Bendersky, Eli wrote: > <snip> > > > > MCJIT is functional in trunk (and the 3.1 branch). While it doesn't include all > the features of the old JIT quite yet, it's complete enough to pass all of JIT's > execution tests on Linux and Mac OS X (no Windows yet). As for directions > on how to enable it, follow the path of the

Just a quick question on LLVM, signals, and the lli interpreter. A sample program is included at the end. Platform is x86, Linux, 32-bit, GCC 4.2.4. Does lli -force-interpreter support signals, or is it only the JIT that does? The following sample program crashes with lli 2.5 and lli top-of-tree. Thanks and regards, Matt ============================= #include <stdio.h> #include

On 5/7/2012 10:17 PM, Bendersky, Eli wrote: <snip> >>> $lli -entry-function="ISimEngine_GetVersion" -use-mcjit libengine.bc >>> LLVM ERROR: Inline asm not supported by this streamer because we don't >>> have an asm parser for this target >> >> I also tried other variations of the call with the same result: >>> $lli