[all-commits] [llvm/llvm-project] 9a3584: [z/OS] Implement prologue and epilogue generation...

[Fanbo Meng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a35844990159f2ced980147f2af4ead4c2d4e93
      https://github.com/llvm/llvm-project/commit/9a35844990159f2ced980147f2af4ead4c2d4e93
  Author: Neumann Hon <neumann.hon at ibm.com>
  Date:   2021-12-16 (Thu, 16 Dec 2021)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZCallingConv.td
    M llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
    M llvm/lib/Target/SystemZ/SystemZFrameLowering.h
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    M llvm/test/CodeGen/SystemZ/call-zos-01.ll
    M llvm/test/CodeGen/SystemZ/call-zos-vec.ll
    M llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll

  Log Message:
  -----------
  [z/OS]  Implement prologue and epilogue generation for z/OS target.

This patch adds support for prologue and epilogue generation for the z/OS target under the XPLINK64 ABI for functions with a stack size of less than 1048576 bytes (huge stack frames).

Reviewed By: uweigand

Differential Revision: https://reviews.llvm.org/D114457