llvm dev - Aug 2013 - [LLVMdev] Can I add GlobalVariable in MachineFunctionPass ?

Hello,

I want to add a global variable of arrayType in my MachineFunctionPass.
However, I only get const Module from MachineFunction.getMMI().getModule().
I can't add any global variable to a const Module. 
Another way is to add a global variable in doInitialization in my
MachineFunctionPass, but I can't determine the size of my arrayType for
global variable in doInitialization.

Is there any suggestion that can help me achieve this?

Thanks in advance.
Antony Yu



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Antony,
 What are you trying to accomplish in this case? I did something very similar in
the AMDIL backend, but it was not the cleanest solution and you are correct it
has to be do at doInitialization stage and not at runOnMachineFunction.
Micah
> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at
cs.uiuc.edu]
> On Behalf Of Antony Yu
> Sent: Monday, August 05, 2013 3:41 AM
> To: llvmdev at cs.uiuc.edu
> Subject: [LLVMdev] Can I add GlobalVariable in MachineFunctionPass ?
> 
> Hello,
> 
> I want to add a global variable of arrayType in my MachineFunctionPass.
> However, I only get const Module from
> MachineFunction.getMMI().getModule().
> I can't add any global variable to a const Module.
> Another way is to add a global variable in doInitialization in my
> MachineFunctionPass, but I can't determine the size of my arrayType for
> global variable in doInitialization.
> 
> Is there any suggestion that can help me achieve this?
> 
> Thanks in advance.
> Antony Yu
> 
> 
> 
> --
> View this message in context: http://llvm.1065342.n5.nabble.com/Can-I-add-
> GlobalVariable-in-MachineFunctionPass-tp60165.html
> Sent from the LLVM - Dev mailing list archive at Nabble.com.
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Micah,

As you expected, I am trying to create local memory but in the NVPTX
backend. It's really not convenient that I can't create local memory in
runOnMachineFunction.
Hmm....
Since I should do it at doInitialization stage, I also need to do some
tricks in global variable and AsmPrinter to resize it.
Did you use the similar way?

Antony




2013/8/5 Micah Villmow <micah.villmow at smachines.com>
> Antony,
>  What are you trying to accomplish in this case? I did something very
> similar in the AMDIL backend, but it was not the cleanest solution and you
> are correct it has to be do at doInitialization stage and not at
> runOnMachineFunction.
> Micah
>
> > -----Original Message-----
> > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at
cs.uiuc.edu]
> > On Behalf Of Antony Yu
> > Sent: Monday, August 05, 2013 3:41 AM
> > To: llvmdev at cs.uiuc.edu
> > Subject: [LLVMdev] Can I add GlobalVariable in MachineFunctionPass ?
> >
> > Hello,
> >
> > I want to add a global variable of arrayType in my
MachineFunctionPass.
> > However, I only get const Module from
> > MachineFunction.getMMI().getModule().
> > I can't add any global variable to a const Module.
> > Another way is to add a global variable in doInitialization in my
> > MachineFunctionPass, but I can't determine the size of my
arrayType for
> > global variable in doInitialization.
> >
> > Is there any suggestion that can help me achieve this?
> >
> > Thanks in advance.
> > Antony Yu
> >
> >
> >
> > --
> > View this message in context:
> http://llvm.1065342.n5.nabble.com/Can-I-add-
> > GlobalVariable-in-MachineFunctionPass-tp60165.html
> > Sent from the LLVM - Dev mailing list archive at Nabble.com.
> > _______________________________________________
> > 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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