[all-commits] [llvm/llvm-project] 2da30f: [NVPTX] Add Volta Load/Store Atomics (.relaxed, .a...

[gonzalobg via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2da30f89869c493f1bc1ffbd8b458975103af0ac
      https://github.com/llvm/llvm-project/commit/2da30f89869c493f1bc1ffbd8b458975103af0ac
  Author: gonzalobg <65027571+gonzalobg at users.noreply.github.com>
  Date:   2024-07-15 (Mon, 15 Jul 2024)

  Changed paths:
    M llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXInstPrinter.cpp
    M llvm/lib/Target/NVPTX/NVPTX.h
    M llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
    M llvm/lib/Target/NVPTX/NVPTXInstrInfo.td
    M llvm/lib/Target/NVPTX/NVPTXSubtarget.h
    A llvm/test/CodeGen/NVPTX/load-store-sm-70.ll
    M llvm/test/CodeGen/NVPTX/load-store.ll

  Log Message:
  -----------
  [NVPTX] Add Volta Load/Store Atomics (.relaxed, .acquire, .release) and Volatile (.mmio/.volatile) support (#98022)

This PR adds initial support for some of Volta's (sm_70) load/store
atomic and volatile/MMIO operations, hopefully without breaking any
preexisting code. Only relaxed, acquire, and release operations w/
volatile are handled.

This PR does not aim to add support for any of the following:
- syncscope support
- read atomic ops to const, param, grid param
- local memory atomics
- sequentially consistent atomics
- atomicrmw 
- ...



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