[llvm-dev] Find uses of Metadata / DITypes

[Adrian Prantl via llvm-dev]

It might help if you could explain what you are *actually* trying to do, since there are often other solutions for the higher-level problem that fit better into the design and architecture.

-- adrian

> On Mar 25, 2020, at 4:01 AM, Henrik Olsson via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> I'm looking for a way to efficiently traverse the Metadata structure in reverse, or otherwise find DITypes that refer to another DIType. As an example, say I have a DICompositeType describing a struct. Now I want to find other DITypes containing this type, e.g. a DIDerivedType describing its pointer type, or another struct containing this struct as one of its fields. Is this possible in LLVM today? Would it be unreasonable to save Metadata to Metadata uses, like what is done for Value to Value uses?
> 
> Any help would be greatly appreciated,
> Henrik
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