[PATCH] D122377: [PowerPC][Linux] Support 16-byte lock free atomics on pwr8 and up

[Kai Luo via Phabricator via cfe-commits]

lkail created this revision.
lkail added reviewers: hubert.reinterpretcast, jsji, xingxue, PowerPC.
Herald added subscribers: shchenz, kbarton, hiraditya, nemanjai.
Herald added a project: All.
lkail requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Enable clang of Linux on POWER supports 16-byte lock free atomics on power8 and up, so that clang can be consistent with GCC of Linux on POWER.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122377

Files:
  clang/lib/Basic/Targets/PPC.cpp
  clang/lib/Basic/Targets/PPC.h
  clang/test/CodeGen/PowerPC/atomic-alignment.c
  clang/test/CodeGen/PowerPC/quadword-atomics.c
  clang/test/Sema/atomic-ops.c
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp

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