[all-commits] [llvm/llvm-project] ca7dc8: [AArch64][SME] Remove unused ZA lazy-save (#81648)

[Matthew Devereau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ca7dc895cea44c80263c969302fa2f202751aa9c
      https://github.com/llvm/llvm-project/commit/ca7dc895cea44c80263c969302fa2f202751aa9c
  Author: Matthew Devereau <matthew.devereau at arm.com>
  Date:   2024-06-18 (Tue, 18 Jun 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h
    M llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
    M llvm/test/CodeGen/AArch64/sme-disable-gisel-fisel.ll
    M llvm/test/CodeGen/AArch64/sme-framelower-use-bp.ll
    M llvm/test/CodeGen/AArch64/sme-lazy-save-call.ll
    M llvm/test/CodeGen/AArch64/sme-shared-za-interface.ll
    A llvm/test/CodeGen/AArch64/sme-za-lazy-save-buffer.ll
    M llvm/test/CodeGen/AArch64/sme-zt0-state.ll

  Log Message:
  -----------
  [AArch64][SME] Remove unused ZA lazy-save (#81648)

This patch removes the TPIDR2 lazy-save object and buffer if no lazy
save is required.

---------

Co-authored-by: Samuel Tebbs <samuel.tebbs at arm.com>



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