[cfe-dev] Passing StructType arguments directly

[Chris Lattner]

On Sep 22, 2011, at 1:51 AM, David Chisnall wrote:

> On 22 Sep 2011, at 07:09, Chris Lattner wrote:
> 
>> I don't get it.  You're telling me two contradictory things:
>> 
>> 1. You want target independent code coming out of the front end.
>> 2. You want to match the target ABI.
>> 
>> Which is it?
> 
> They are not contradictory.  He wants target-independent IR from the front end.  Then he wants a target-specific lowering pass to transform it into IR for the target ABI.  This isn't an unusual requirement, which is why it was a design goal for TENDRA and the SGI compiler suite.

I agree that they are not contradictory in theory.  However, in LLVM today they are contradictory in practice.

-Chris