llvm dev - Jul 2014 - [LLVMdev] Register Machine Pass

Where is the documentation about registering a machine pass? I'm unable to
find it.

I have built a machine function pass similar to the one found in
HexagonHardwareLoops.cpp. So I have generated a machine pass.cpp file,
modified 'Target'.h and 'Target'TargetMachine.cpp (to add pass
via
addPass() in the addPreRegAlloc()). All this builds/compiles fine.

When running llc the pass does not get executed.

I seem to be missing some steps? Potentially registration of the machine
pass?

Thanks.
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On Mon, 2014-07-14 at 08:31 -0700, Ryan Taylor wrote:
> Where is the documentation about registering a machine pass? I'm
> unable to find it.
> 
> 
> I have built a machine function pass similar to the one found in
> HexagonHardwareLoops.cpp. So I have generated a machine pass.cpp file,
> modified 'Target'.h and 'Target'TargetMachine.cpp (to add
pass via
> addPass() in the addPreRegAlloc()). All this builds/compiles fine.
> 
> 
> When running llc the pass does not get executed.
> 
> 
> I seem to be missing some steps? Potentially registration of the
> machine pass?
That should be all you need to do.    Are you running in a debugger and
making sure your added addPass() call is actually being
executed?
> 
> 
> Thanks.
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It's not being executed. I'm both trying to print via outs() and add
info
via STATISTIC, neither is occurring.


On Mon, Jul 14, 2014 at 12:22 PM, Justin Holewinski <jholewinski at
nvidia.com>
wrote:
> On Mon, 2014-07-14 at 08:31 -0700, Ryan Taylor wrote:
> > Where is the documentation about registering a machine pass? I'm
> > unable to find it.
> >
> >
> > I have built a machine function pass similar to the one found in
> > HexagonHardwareLoops.cpp. So I have generated a machine pass.cpp file,
> > modified 'Target'.h and 'Target'TargetMachine.cpp (to
add pass via
> > addPass() in the addPreRegAlloc()). All this builds/compiles fine.
> >
> >
> > When running llc the pass does not get executed.
> >
> >
> > I seem to be missing some steps? Potentially registration of the
> > machine pass?
>
> That should be all you need to do.    Are you running in a debugger and
> making sure your added addPass() call is actually being executed?
> >
> >
> > Thanks.
>
>
>
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> This email message is for the sole use of the intended recipient(s) and
> may contain
> confidential information.  Any unauthorized review, use, disclosure or
> distribution
> is prohibited.  If you are not the intended recipient, please contact the
> sender by
> reply email and destroy all copies of the original message.
>
>
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>
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