[PATCH] D72184: [BPF] support atomic instructions

[Yonghong Song via Phabricator via cfe-commits]

yonghong-song updated this revision to Diff 308884.
yonghong-song edited the summary of this revision.
yonghong-song added a comment.

- remove -mcpu=v4.
- for new instructions (except xadd), for 32bit mode, only alu32 mode is supported. I chose this way since we have -mcpu=v3 for a while which has alu32 as default. We really want to promote alu32 mode. The new kernel which supports atomic op definitely supports alu32 well...


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72184/new/

https://reviews.llvm.org/D72184

Files:
  llvm/lib/Target/BPF/BPFInstrFormats.td
  llvm/lib/Target/BPF/BPFInstrInfo.td
  llvm/lib/Target/BPF/BPFMIChecking.cpp
  llvm/lib/Target/BPF/Disassembler/BPFDisassembler.cpp
  llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
  llvm/test/CodeGen/BPF/atomics.ll
  llvm/test/CodeGen/BPF/atomics_2.ll
  llvm/test/CodeGen/BPF/xadd.ll

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