[all-commits] [llvm/llvm-project] 0a0cac: [SystemZ] Simplify f128 atomic load/store (#90977)

[Ulrich Weigand via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0a0cac6dbd0ef67eb473f85a968bbf4ebea5220d
      https://github.com/llvm/llvm-project/commit/0a0cac6dbd0ef67eb473f85a968bbf4ebea5220d
  Author: Ulrich Weigand <ulrich.weigand at de.ibm.com>
  Date:   2024-05-06 (Mon, 06 May 2024)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    M llvm/test/CodeGen/SystemZ/atomic-load-08.ll
    M llvm/test/CodeGen/SystemZ/atomic-store-08.ll
    M llvm/test/CodeGen/SystemZ/atomicrmw-fmax-03.ll
    M llvm/test/CodeGen/SystemZ/atomicrmw-fmin-03.ll

  Log Message:
  -----------
  [SystemZ] Simplify f128 atomic load/store (#90977)

Change definition of expandBitCastI128ToF128 and expandBitCastF128ToI128
to allow for simplified use in atomic load/store.

Update logic to split 128-bit loads and stores in DAGCombine to also
handle the f128 case where appropriate. This fixes the regressions
introduced by recent atomic load/store patches.



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