[PATCH] D18332: [ELF/AArch64] Add GD to IE TLS relax optimization

[Adhemerval Zanella via llvm-commits]

zatrazz created this revision.
zatrazz added reviewers: ruiu, rafael.
zatrazz added subscribers: emaste, grimar, rengolin, llvm-commits.
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Herald added a subscriber: aemerson.

This patch add the TLS Global-Dynamic to Initial-Exec TLS optimization
for AArch64.  Similar of GD to LE, the idea is to optimize TLS access
to global symbols that can preempted by emitting a GOT entry and
a dynamic relocation (R_AARCH64_TLS_TPREL64).

This patch is based upon http://reviews.llvm.org/D18331

Repository:
  rL LLVM

http://reviews.llvm.org/D18332

Files:
  ELF/Target.cpp
  test/ELF/Inputs/aarch64-tls-ie.s
  test/ELF/aarch64-tls-gdie.s

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