[PATCH] D15292: [ELF] - optimizations for x86 tls relocations implemented.

[George Rimar via llvm-commits]

grimar created this revision.
grimar added reviewers: ruiu, rafael.
grimar added subscribers: llvm-commits, grimar.

Next cases are covered:
LD->LE, GD->IE, GD->LD, IE->LE.

Unformation is taken from "ELF Handling For Thread-Local Storage" by Ulrich Drepper, chapter 5, "IA-32 Linker Optimizations"

http://reviews.llvm.org/D15292

Files:
  ELF/Target.cpp
  test/ELF/Inputs/tls-opt-gdiele-i686.s
  test/ELF/tls-opt-gdiele-i686.s
  test/ELF/tls-opt-i686.s

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