[PATCH] D71688: [AArch64] Add -mtls-size option for ELF targets

[KAWASHIMA Takahiro via Phabricator via llvm-commits]

kawashima-fj created this revision.
kawashima-fj added reviewers: dmgreen, mstorsjo, t.p.northover.
kawashima-fj added projects: LLVM, clang.
Herald added subscribers: llvm-commits, kristof.beyls.

This option allows selecting the TLS size in the local exec TLS model,
which is the default TLS model for non-PIC objects. This allows large/
many thread local variables or a compact/fast code in an executable.

Specification is same as that of GCC. For example, the code model
option precedes the TLS size option.

TLS access models other than local-exec are not changed. It means
supoort of the large code model is only in the local exec TLS model.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71688

Files:
  include/clang/Basic/CodeGenOptions.def
  include/clang/Driver/Options.td
  include/llvm/CodeGen/CommandFlags.inc
  include/llvm/Target/TargetOptions.h
  lib/CodeGen/BackendUtil.cpp
  lib/Driver/ToolChains/Clang.cpp
  lib/Frontend/CompilerInvocation.cpp
  lib/Target/AArch64/AArch64ISelLowering.cpp
  lib/Target/AArch64/AArch64ISelLowering.h
  llvm/test/CodeGen/AArch64/arm64-tls-execs.ll
  llvm/test/CodeGen/AArch64/arm64-tls-initial-exec.ll
  test/CodeGen/AArch64/arm64-tls-local-exec.ll
  test/Driver/tls-size.c

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