llvm dev - Nov 2012 - [LLVMdev] Emit only one function of the module to native code

Ok thanks,
I thought there was a more direct way to do it...

2012/11/19 Eric Christopher <echristo at gmail.com>
> llvm-extract and then llc?
>
> -eric
>
>
> On Mon, Nov 19, 2012 at 10:25 AM, Christophe Duvernois <
> christophe.duvernois at gmail.com> wrote:
>
>> Hi
>>
>> I use llvm-3.1. I have a large module and i want to emit native code
(or
>> assembly) for one function.
>>
>> I tried to replace the PassManager in llc by a FunctionPassManager but
I
>> have a crash so this is probably not the good way to do it. (cf
attached
>> my simple test)
>>
>> Is it possible to write one function from the module? What is the good
>> way to do it?
>>
>> Thanks in advance.
>>
>> Christophe
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>>
>
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On 19/11/12 22:31, Christophe Duvernois wrote:
> Ok thanks,
> I thought there was a more direct way to do it...
I think this is supposed to be possible.  llvm-gcc had logic for emitting code
for each function immediately after generating it, but it was ifdef'd out
with
the remark that it was buggy.  You might want to take a look at how llvm-gcc
was trying to do it.  Since no-one is actually doing this kind of thing AFAIK,
it is likely that you will hit some bugs in the code generators even if your
approach is valid.

Ciao, Duncan.
>
> 2012/11/19 Eric Christopher <echristo at gmail.com <mailto:echristo
at gmail.com>>
>
>     llvm-extract and then llc?
>
>     -eric
>
>
>     On Mon, Nov 19, 2012 at 10:25 AM, Christophe Duvernois
>     <christophe.duvernois at gmail.com <mailto:christophe.duvernois
at gmail.com>> wrote:
>
>         Hi
>
>         I use llvm-3.1. I have a large module and i want to emit native
code (or
>         assembly) for one function.
>
>         I tried to replace the PassManager in llc by a FunctionPassManager
but I
>         have a crash so this is probably not the good way to do it. (cf
attached
>         my simple test)
>
>         Is it possible to write one function from the module? What is the
good
>         way to do it?
>
>         Thanks in advance.
>
>         Christophe
>
>         _______________________________________________
>         LLVM Developers mailing list
>         LLVMdev at cs.uiuc.edu <mailto:LLVMdev at cs.uiuc.edu>
http://llvm.cs.uiuc.edu
>         http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>
>
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

Thanks i will look into it.
Le 20 nov. 2012 08:47, "Duncan Sands" <baldrick at free.fr> a
écrit :
> On 19/11/12 22:31, Christophe Duvernois wrote:
>
>> Ok thanks,
>> I thought there was a more direct way to do it...
>>
>
> I think this is supposed to be possible.  llvm-gcc had logic for emitting
> code
> for each function immediately after generating it, but it was ifdef'd
out
> with
> the remark that it was buggy.  You might want to take a look at how
> llvm-gcc
> was trying to do it.  Since no-one is actually doing this kind of thing
> AFAIK,
> it is likely that you will hit some bugs in the code generators even if
> your
> approach is valid.
>
> Ciao, Duncan.
>
>
>> 2012/11/19 Eric Christopher <echristo at gmail.com <mailto:
>> echristo at gmail.com>>
>>
>>     llvm-extract and then llc?
>>
>>     -eric
>>
>>
>>     On Mon, Nov 19, 2012 at 10:25 AM, Christophe Duvernois
>>     <christophe.duvernois at gmail.**com <christophe.duvernois at
gmail.com><mailto:
>> christophe.duvernois@**gmail.com <christophe.duvernois at
gmail.com>>>
>> wrote:
>>
>>         Hi
>>
>>         I use llvm-3.1. I have a large module and i want to emit native
>> code (or
>>         assembly) for one function.
>>
>>         I tried to replace the PassManager in llc by a
>> FunctionPassManager but I
>>         have a crash so this is probably not the good way to do it. (cf
>> attached
>>         my simple test)
>>
>>         Is it possible to write one function from the module? What is
the
>> good
>>         way to do it?
>>
>>         Thanks in advance.
>>
>>         Christophe
>>
>>         ______________________________**_________________
>>         LLVM Developers mailing list
>>         LLVMdev at cs.uiuc.edu <mailto:LLVMdev at cs.uiuc.edu>
>> http://llvm.cs.uiuc.edu
>>        
http://lists.cs.uiuc.edu/**mailman/listinfo/llvmdev<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>
>>
>>
>>
>>
>>
>> ______________________________**_________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>
http://lists.cs.uiuc.edu/**mailman/listinfo/llvmdev<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>
>>
>>
> ______________________________**_________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>
http://lists.cs.uiuc.edu/**mailman/listinfo/llvmdev<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>
>
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