llvm dev - Oct 2014 - [LLVMdev] Creating a new MCStreamer object inside AsmPrinter

Hi,

I would like to create a new MCStreamer object inside the AsmPrinter class,
which will be used in the AsmPrinter::EmitFunctionBody() method. This new
MCStreamer object has to use the dbgs() raw_stream instead of the default
Out stream as created in the LLVMTargetMachine::addPassesToEmitFile method.

In that method, there's a call to the default
OutStreamer.EmitInstruction(&MI) method. In my code, I need to call this
method for my new MCStreamer object.

In summary, I want to print the asm instruction created by the
EmitInstruction method to the dbgs() stream.

All the objects I need (at least I think) to create my new MCStreamer
object are the running instances for the Target of the MCInstPrinter,
MCAsmBackend and MCCodeEmitter classes. How can I retrieve these objects
inside the AsmPrinter class?


Thanks,
Ronaldo
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Just in case someone else needs it, the solution is here:
MCAsmStreamer::EmitInstruction. Just had to add this:
InstPrinter->printInst(&Inst, errs(), "");



2014-10-08 1:12 GMT+02:00 Ronaldo Ferreira <ronaldorferreira at
gmail.com>:
> Hi,
>
> I would like to create a new MCStreamer object inside the AsmPrinter
> class, which will be used in the AsmPrinter::EmitFunctionBody() method.
> This new MCStreamer object has to use the dbgs() raw_stream instead of the
> default Out stream as created in the LLVMTargetMachine::addPassesToEmitFile
> method.
>
> In that method, there's a call to the default
> OutStreamer.EmitInstruction(&MI) method. In my code, I need to call
this
> method for my new MCStreamer object.
>
> In summary, I want to print the asm instruction created by the
> EmitInstruction method to the dbgs() stream.
>
> All the objects I need (at least I think) to create my new MCStreamer
> object are the running instances for the Target of the MCInstPrinter,
> MCAsmBackend and MCCodeEmitter classes. How can I retrieve these objects
> inside the AsmPrinter class?
>
>
> Thanks,
> Ronaldo
>
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