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...my current patches. At the moment two tests fail. 2011-06-16-TailCallByVal.ll because an instruction alias for a variadic instruction isn't recognized and thumb2-ldm.ll fails with "Trying to add an operand to a machine instr that is already done!" Any comments? Thanks, Christoph Grenz Am Donnerstag, 27. September 2012, 01:42:04 schrieb Christoph Grenz: > Am Mittwoch, 26. September 2012, 11:18:20 schrieb Jakob Stoklund Olesen: > > Hi Christoph, > > > > As you noticed, MCInstrDesc doesn't distinguish between variadic uses and > > defs. Since variad...

Am Mittwoch, 26. September 2012, 11:18:20 schrieb Jakob Stoklund Olesen: > Hi Christoph, > > As you noticed, MCInstrDesc doesn't distinguish between variadic uses and > defs. Since variadic instructions will always require some kind of special > handling, it doesn't seem worthwhile to make the model more detailed. I don't see what makes them so different from other

Hi, is there currently a way to create a cmpxchg instruction using the C bindings? I only found LLVMBuildAtomicRMW and LLVMBuildFence in the documentation. Regards, Christoph Grenz

...s all bindings I could find were for LLVM 2.x and up to Python 2.6. I used Cython for easier coding and already ported a big part of Core.h including all Type and Value classes. https://www.gitorious.org/python-llvm3 > [...] > > Gregory Szorc > gregory.szorc at gmail.com Christoph Grenz

Hi all, when e.g. accessing a global variable residing in a structure, the c++API code looks like: std::vector<Constant*> const_ptr_183_indices; const_ptr_183_indices.push_back(const_int32_172); const_ptr_183_indices.push_back(const_int32_184); const_ptr_183_indices.push_back(const_int64_175); Constant* const_ptr_183 = ConstantExpr::getGetElementPtr(gvar_struct_foo,

On Sep 24, 2012, at 6:39 PM, Christoph Grenz <christophg+llvm at grenz-bonn.de> wrote: > Is it possible to extend LLVM to check if 'variable_ops' is in 'ins' and/or > 'outs' in tablegen, so that MCInstrDesc could provide something like > hasVariadicDefs() and hasVariadicUses()? > > That way han...

On Apr 23, 2013, at 3:33 PM, Christoph Grenz <christophg+llvm at grenz-bonn.de> wrote: > Hello, > > Am Dienstag, 23. April 2013, 13:26:19 schrieb Owen Anderson: >> That's a pretty seriously unsafe floating point optimization. It could be >> done in fast-math mode, but I doubt we currently do it. > > I...

Am Dienstag, 23. April 2013, 22:50:51 schrieben Sie: > [...] > Giving more-than-expected precision can be just as bad for the user as less. > It tends to come up in situations where the optimization would break some > symmetry, the same way that aggressively forming FMAs can break user code. > [...] > > It boils down to the fact that giving excess precision in >

There was some talk on IRC last week about desire for Python bindings to LLVM's Object.h C interface. So, I coded up some and you can now find some Python bindings in trunk at bindings/python. Currently, the interfaces for Object.h and Disassembler.h are implemented. I'd like to stress that things are still rough around the edges, so use at your own risk. I intend to smooth things over in

Hello, Am Dienstag, 23. April 2013, 13:26:19 schrieb Owen Anderson: > That's a pretty seriously unsafe floating point optimization. It could be > done in fast-math mode, but I doubt we currently do it. I just saw this thread and wonder why it's "seriously" unsafe? I see only one problematic corner case. For x >= 0.0 the result cannot lose precision. For x = NaN the

Hello, I'm currently working on a rich disassembler for some ARM/Thumb environment. I wanted to keep most classes independent of the architecture, so I use MCInstrInfo and MCInstrAnalysis to find branch instructions (and other instructions writing to the program counter) and to differentiate between register definitions and uses to track all instructions the branch depends on. This works

...e are at least four Python binding projects currently running. (None of them in GSoC) I think it's a great idea to improve llvm-py, but I'd also suggest to first look at the other bindig projects. http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-March/thread.html Best regards, Christoph Grenz

Hi, I'm having a play with LLVM to implement a custom language (for my intellectual curiosity only). I'm wondering how, when using IRBuilder, one can can it to emit a recursive type definition? The code for TypeBuilder explicitly states that it doesn't handle recursive types... I'm after being able to emit, programmatically, stuff like the Named Types example in the Language

Hello all, I notice in previous gsocs of LLVM , there is no projects about language bindings for LLVM. Does that mean it has lower priority than other projects? Current python bindings for LLVM in the trunk are far from complemte. So I would like to improve python bindings for LLVM this summer if possible. My work will be based on llvm-py project ( http://code.google.com/p/llvm-py/). I obtained

Hello, I didn't see any section on this site for LLVM language bindings. There is http://llvm.org/ProjectsWithLLVM/ but that seems to be more about self-contained applications of LLVM. I think it would be useful to add a page (or section to an existing page) if you all agree. My binding is https://github.com/keithshep/llvm-fs and I know that there are many others. Best, Keith

At Fri, 16 Mar 2012 14:12:08 +0100, Christoph Grenz wrote: > > Hello, > > Am Donnerstag, 15. März 2012, 21:15:02 schrieb Gregory Szorc: > > There was some talk on IRC last week about desire for Python bindings to > > LLVM's Object.h C interface. So, I coded up some and you can now find > > some Python bindings in...

Hi, Am Mittwoch, 26. Dezember 2012, 15:20:27 schrieb Manny Ko: > The MCInstrDesc has a method getNumDefs() which tells you how many 'out > registers' that MCInst has. The 'out' registers are always at the beginning > of the list. You can also use getNumOperands(). I've run into the problem, that this doesn't work for instructions which have variadic arguments