[PATCH] D140813: [ELF][X86] Support TLS GD/LD relaxation for gcc -fno-plt

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
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This revision was not accepted when it landed; it landed in state "Draft".
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Closed by commit rG8dc73662ab5f: [ELF] Support TLS GD/LD relaxations for x86-32 -fno-plt (authored by MaskRay).
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Changed prior to commit:
  https://reviews.llvm.org/D140813?vs=485791&id=485794#toc

gcc -fno-plt uses `call *___tls_get_addr at GOT(%reg)` instead of `call ___tls_get_addr at PLT`.
GD to IE/LE relaxations need to shift the offset by one while LD to LE relaxation needs to use a different code sequence.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140813

Files:
  lld/ELF/Arch/X86.cpp
  lld/test/ELF/i386-tls-gdiele.s
  lld/test/ELF/i386-tls-opt.s

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