omtcyfz added a comment.
In https://reviews.llvm.org/D23279#510147, @alexshap wrote:
> Suppose you have a struct Foo defined in LibA and you have used clang-rename
> to rename Foo into Bar (or just a field of Foo say - you have renamed Foo::x
> into Foo::y); LibA is linked to LibB and you have Foo foo = { &x, 17, 1.29, 0
> }; in LibB. Therefore LibA knows nothing of struct Foo usages in LibB. Thus,
> the struct constructions and everything related stays exactly the same in
> LibB.
>
> It's not clear to me why the issue is specific to this particular tool (maybe
> i am bit sleepy and missing smth).
Because `LibB` becomes broken.
Repository:
rL LLVM
https://reviews.llvm.org/D23279
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