[PATCH] D74506: [SystemZ] Support the kernel backchain

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa created this revision.
jonpa added a reviewer: uweigand.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

In order to build the Linux kernel, the back chain must be supported together with packed-stack. The back chain is then stored topmost in the register save area.


https://reviews.llvm.org/D74506

Files:
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/test/Driver/mbackchain.c
  llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
  llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
  llvm/test/CodeGen/SystemZ/frame-23.ll
  llvm/test/CodeGen/SystemZ/frameaddr-02.ll

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