[LLVMdev] how to get MachineBasicBlock of a BasicBlock

[David Meyer]

Also note: there may be multiple MachineBasicBlock's for a single
BasicBlock.

- David M


On Fri, Oct 15, 2010 at 4:59 AM, Jeff Kunkel <jdkunk3 at gmail.com> wrote:

> I don't think you can.
>
> The BasicBlock is a member of MachineBasicBlock. It is not inherited,
> so it cannot be cast. The number of the MachineBasicBlock is not the
> same as any BasicBlock values. So
> MachineFunction::getMachineBasicBlock( BasicBlock::{get the number} )
> cannot work. I do not see much in the basic block which can identify
> it.
>
> So you can search for it.
>
> typedef struct findBlock {
>  BasicBlock * block;
>  findBlock( BasicBlock * block ) : block(block) {}
>  bool operator( MachineBasicBlock * mbb ) { return
> mbb->getBasicBlock() == block; }
> } findBlock;
> MachineBasicBlock = *std::find( machineFunction.begin(),
> machineFunction.end(),
>  findBlock( basicBlock ) );
>
> -Thanks
> -Jeff Kunkel
>
> 2010/10/15 徐敏 <xm1988 at mail.ustc.edu.cn>:
> > Hello, we can get BasicBlock from MachineBasicBlock through
> MachineBasicBlock::getBasicBlock() function, but how can I get
> MachineBasicBlock of a BasicBlock?
> > Thank you!
> >
> >
> >
> >
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> >
> >
>
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