llvm dev - Jun 2009 - [LLVMdev] modifying llc asm output

Hi

I am trying to modify the llc in that way: 

 

        subf 3, 5, 3                                 subf 3, 5, 3

        stw 3, 44(1)                                stw 3, 44(1)

                                                               # InlineAsm
Start

                                               -->          isync

                                                               # InlineAsm
End

        lwz 3, 44(1)                                lwz 3, 44(1)

        cmpwi 0, 3, -1                           cmpwi 0, 3, -1

 

I would like to insert Code (like the isync) in the asm output of the llc.
What is the best way, or easiest to do this. 

 

llc -filetype=asm -march=ppc32   -o=test.s test.bc      

 

With best regards,

- Michael

 

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On Tue, Jun 30, 2009 at 8:33 AM, Michael
Graumann<MichaelGraumann at gmx.net> wrote:
> Hi
>
> I am trying to modify the llc in that way:
>
>
>
>         subf 3, 5, 3                                 subf 3, 5, 3
>
>         stw 3, 44(1)                                stw 3, 44(1)
>
>                                                                # InlineAsm
> Start
>
>                                                -->          isync
>
>                                                                # InlineAsm
> End
>
>         lwz 3, 44(1)                                lwz 3, 44(1)
>
>         cmpwi 0, 3, -1                           cmpwi 0, 3, -1
>
>
>
> I would like to insert Code (like the isync) in the asm output of the llc.
> What is the best way, or easiest to do this.
>
Well, inlined assembly, of course. :-) Make sure to mark it as
"volatile".

-bw

Ok :-) und how can I add inlined assembly to the output?

- Michael

-----Ursprüngliche Nachricht-----
Von: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] Im
Auftrag von Bill Wendling
Gesendet: Dienstag, 30. Juni 2009 19:16
An: LLVM Developers Mailing List
Betreff: Re: [LLVMdev] modifying llc asm output

On Tue, Jun 30, 2009 at 8:33 AM, Michael
Graumann<MichaelGraumann at gmx.net> wrote:
> Hi
>
> I am trying to modify the llc in that way:
>
>
>
>         subf 3, 5, 3                                 subf 3, 5, 3
>
>         stw 3, 44(1)                                stw 3, 44(1)
>
>                                                                # InlineAsm
> Start
>
>                                                -->          isync
>
>                                                                # InlineAsm
> End
>
>         lwz 3, 44(1)                                lwz 3, 44(1)
>
>         cmpwi 0, 3, -1                           cmpwi 0, 3, -1
>
>
>
> I would like to insert Code (like the isync) in the asm output of the llc.
> What is the best way, or easiest to do this.
>
Well, inlined assembly, of course. :-) Make sure to mark it as
"volatile".

-bw

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