[LLVMdev] Connecting two insns by a flag using anonymous pattern.

[sanjiv gupta]

On Fri, 2008-10-31 at 13:05 +0530, sanjiv gupta wrote:
> On Thu, 2008-10-30 at 08:51 -0700, Evan Cheng wrote:
> > I think so. If you are defining your own SDNode's, you need to specify  
> > one as producing a flag, i.e. SDNPOutFlag; the other will be reading a  
> > flag, i.e. SDNPInFlag.
> > 
> > Evan
> > 
> The problem is that B produces two values: i8, flag. 
> And I would like to connect C using the flag of B and not by i8.
> 
Typo in earlier email.

def : Pat <(A), (B (C))>;

The problem is that C produces two values: i8, flag. 
And I would like to connect B using the flag of C and not by i8.

I think .td patterns needs ResNo mechanism.

- Sanjiv




> > >
> > > can I connect B and C using a flag here?
> > >
> > > TIA,
> > > -Sanjiv
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