[lld] [LLD][RISCV][Zicfilp] Generate unlabeled landing pad-style PLT (PR #145461)

[Jessica Clarke via llvm-commits]

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jrtc27 wrote:

Can we make this more consistent with the non-CFI code? There seems to be gratuitous divergence in how various constants are expressed.

https://github.com/llvm/llvm-project/pull/145461