[all-commits] [llvm/llvm-project] e4ceb5: [X86] Create extra prolog/epilog for stack realign...

[Luo, Yuanke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e4ceb5a7bb9b8f6d730530345649286370dd3ff8
      https://github.com/llvm/llvm-project/commit/e4ceb5a7bb9b8f6d730530345649286370dd3ff8
  Author: Luo, Yuanke <yuanke.luo at intel.com>
  Date:   2023-03-22 (Wed, 22 Mar 2023)

  Changed paths:
    M llvm/lib/Target/X86/CMakeLists.txt
    M llvm/lib/Target/X86/X86.h
    A llvm/lib/Target/X86/X86ArgumentStackSlotRebase.cpp
    M llvm/lib/Target/X86/X86FrameLowering.cpp
    M llvm/lib/Target/X86/X86InstrArithmetic.td
    M llvm/lib/Target/X86/X86MachineFunctionInfo.h
    M llvm/lib/Target/X86/X86RegisterInfo.cpp
    M llvm/lib/Target/X86/X86RegisterInfo.h
    M llvm/lib/Target/X86/X86RegisterInfo.td
    M llvm/lib/Target/X86/X86TargetMachine.cpp
    M llvm/test/CodeGen/MIR/X86/inline-asm-registers.mir
    M llvm/test/CodeGen/X86/O0-pipeline.ll
    M llvm/test/CodeGen/X86/i386-baseptr.ll
    M llvm/test/CodeGen/X86/opt-pipeline.ll
    M llvm/test/CodeGen/X86/statepoint-invoke-ra-enter-at-end.mir
    M llvm/test/CodeGen/X86/x86-64-baseptr.ll

  Log Message:
  -----------
  [X86] Create extra prolog/epilog for stack realignment

Fix some bugs and reland e4c1dfed38370b4 and 614c63bec6d67c.
1. Run argument stack rebase pass before the reserved physical register
   is finalized.
2. Add LEA pseudo instruction to prevent the instruction being
   eliminated.
3. Don't support X32.