[PATCH] D150367: [AIX][TLS] Generate optimized local-exec access code sequence using X-Form loads/stores

[Amy Kwan via Phabricator via llvm-commits]

amyk updated this revision to Diff 534954.
amyk added a comment.

Update the patch to only do this optimization if all users of the `ADD_TLS` node are normal loads with an offset of 0.
This resolves an issue that Lei pointed out with respect to increasing the usage of registers when we have a 64-bit load/store on a 32-bit system - in such a situation, we no longer perform this optimization.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150367/new/

https://reviews.llvm.org/D150367

Files:
  llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
  llvm/lib/Target/PowerPC/PPCSubtarget.h
  llvm/test/CodeGen/PowerPC/aix-tls-le-ldst-O0.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-ldst-double.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-ldst-float.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-ldst-int.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-ldst-longlong.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-xcoff-reloc-large.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-xcoff-reloc.ll
  llvm/test/CodeGen/PowerPC/aix-tls-le-xcoff-reloc32.ll

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