[all-commits] [llvm/llvm-project] f5ce84: X86: Remove LOW32_ADDR_ACCESS_RBPRegClass

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/x86/remove-LOW32_ADDR_ACCESS_RBPRegClass
  Home:   https://github.com/llvm/llvm-project
  Commit: f5ce84e0eb5c268ce2e072e6b7b02b4f806a714a
      https://github.com/llvm/llvm-project/commit/f5ce84e0eb5c268ce2e072e6b7b02b4f806a714a
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-08-26 (Tue, 26 Aug 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86RegisterInfo.cpp
    M llvm/lib/Target/X86/X86RegisterInfo.td

  Log Message:
  -----------
  X86: Remove LOW32_ADDR_ACCESS_RBPRegClass

This essentially reverts 86098ab10b3180a09762266d1f3046eb6f336137.

This was introduced for "ABIs like NaCl". Nacl support was recently
removed in 0d2e11f3e834e0c1803a6e00da35525b0d476eb2. Based on the
X86FrameLowering changes there, Is64Bit && TFI->Uses64BitFramePtr
are not reachable conditions.


  Commit: 2356b8d8b9b414fe4a2a174d4afa11f3f08542d5
      https://github.com/llvm/llvm-project/commit/2356b8d8b9b414fe4a2a174d4afa11f3f08542d5
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-08-26 (Tue, 26 Aug 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86RegisterInfo.td

  Log Message:
  -----------
  Restore LOW32_ADDR_ACCESSRegClass definition

Somehow there are code changes in tests when unused.


Compare: https://github.com/llvm/llvm-project/compare/1e471a1a293f...2356b8d8b9b4

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