Port the D64906 technique to EM_X86_64. Differential Revision: https://reviews.llvm.org/D67482 llvm-svn: 371958
This handles two initial relocation types R_X86_64_GOTPC32_TLSDESC and R_X86_64_TLSDESC_CALL, as well as the GD->LE and GD->IE relaxations. Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D62513 llvm-svn: 361911