Fangrui Song 7117dea043 AsmPrinter: Remove ELF's special lowerRelativeReference for unnamed_addr function; use lowerDSOLocalEquivalent in more cases ...

https://reviews.llvm.org/D17938 introduced lowerRelativeReference to
give ConstantExpr sub (A-B) special semantics in ELF: when `A` is an
`unnamed_addr` function, create a PLT-generating relocation. This was
intended for C++ relative vtables, but C++ relative vtable ended up
using DSOLocalEquivalent (lowerDSOLocalEquivalent).

This special treatment of `unnamed_addr` seems unusual.
Let's remove it. Only COFF needs an overload to generate a @IMGREL32
relocation specifier (llvm/test/MC/COFF/cross-section-relative.ll).

Pull Request: https://github.com/llvm/llvm-project/pull/134781

2025-04-08 10:11:20 -07:00

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