[all-commits] [llvm/llvm-project] 698b45: [PowerPC][lld] Account for additional X-Forms -> D...

[Amy Kwan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 698b45aa902de4d30c798e8d6bd080c8e31bade8
      https://github.com/llvm/llvm-project/commit/698b45aa902de4d30c798e8d6bd080c8e31bade8
  Author: Amy Kwan <amy.kwan1 at ibm.com>
  Date:   2023-08-31 (Thu, 31 Aug 2023)

  Changed paths:
    M lld/ELF/Arch/PPC.cpp
    M lld/ELF/Arch/PPC64.cpp
    M lld/ELF/Target.h
    M lld/test/ELF/ppc32-tls-ie.s
    M lld/test/ELF/ppc64-tls-ie.s
    M lld/test/ELF/ppc64-tls-pcrel-ie.s

  Log Message:
  -----------
  [PowerPC][lld] Account for additional X-Forms -> D-Form/DS-Forms load/stores when relaxing initial-exec to local-exec

D153645 added additional X-Form load/stores that can be generated for TLS accesses.
However, these added instructions have not been accounted for in lld. As a result,
lld does not know how to handle them and cannot relax initial-exec to local-exec
when the initial-exec sequence contains these additional load/stores.

This patch aims to resolve https://github.com/llvm/llvm-project/issues/64424.

Differential Revision: https://reviews.llvm.org/D158197