[PATCH] D122558: [2/3] TLS loads optimization (hoist)

[Xiang Zhang via Phabricator via llvm-commits]

xiangzhangllvm created this revision.
xiangzhangllvm added reviewers: craig.topper, pengfei, LuoYuanke, efriedma, nlopes.
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Herald added subscribers: llvm-commits, MaskRay.
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We supported TLS loads optimization (LLVM part) at D120000 <https://reviews.llvm.org/D120000>

Now this patch mainly add a Clang option (-mtls-load-hoist) for it.

Also we update the old llvm option to a bool option in this patch.


https://reviews.llvm.org/D122558

Files:
  clang/include/clang/Basic/CodeGenOptions.def
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/test/CodeGen/X86/tls_loads.cpp
  llvm/docs/LangRef.rst
  llvm/lib/Transforms/Scalar/TLSVariableHoist.cpp
  llvm/test/CodeGen/X86/tls-loads-control.ll
  llvm/test/CodeGen/X86/tls-loads-control2.ll
  llvm/test/CodeGen/X86/tls-loads-control3.ll

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