[llvm-commits] Patch proposal: DIDescriptor constructors

[Renato Golin]

Debug info in LLVM is now done by passing small objects, rather than
pointers. To some degree it works, but it's difficult to pass derived
objects into functions that would expect base ones.

For that purpose, I have added a few constructors to DIDescriptor to
enable that functionality without changing the way the debug
infrastructure works, but that doesn't work in the opposite direction.

Patch extracted from yesterday's (Tue, 27 Jul, 2010) trunk.

cheers,
--renato
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