[compiler-rt] [llvm] [TSan, SanitizerBinaryMetadata] Analyze the capture status for `alloca` rather than arbitrary `Addr` (PR #132756)

[via llvm-commits]

Camsyn wrote:

> I think your description is wrong:
> 
> > ```
> >  const AllocaInst *AI = findAllocaForValue(Addr);
> >  // Instead of Addr, we should check whether its base pointer is captured.
> > if (AI && !PointerMayBeCaptured(Addr, AI)) ...
> > ```
> 
> Shouldn't it say "if (AI && !PointerMayBeCaptured(AI, true))" ?

Ohhh, it is a literal mistake in the PR description, but the relevant modification is correct.

https://github.com/llvm/llvm-project/pull/132756