[PATCH] D109252: Add extra check for llvm::Any::TypeId visibility

Tom Stellard via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Sep 10 13:10:47 PDT 2021


tstellar added a comment.

Yes, the structure of the test looks good.



================
Comment at: llvm/tools/llvm-shlib/typeid.pattern:2
+# Make sure there's no llvm::Any::TypeId symbol local to the shared library.
+# That would cause non-unicity of the adresses used as unique identifier for
+# each type when another library is linked in with default visibility (weak)
----------------
serge-sans-paille wrote:
> MaskRay wrote:
> > I haven't heard of non-unicity.
> > 
> > breaking pointer equality is more common.
> This really sounds the same to me :-)
fwiw, I don't know what non-unicity means either.


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  https://reviews.llvm.org/D109252/new/

https://reviews.llvm.org/D109252



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