[PATCH] D99377: [PowerPC] Add ROP Protection to prologue and epilogue

[Stefan Pintilie via Phabricator via llvm-commits]

stefanp updated this revision to Diff 335314.
stefanp added a comment.

Updated test case to include -O0.

Initially I agreed that we needed to add the CreateStackObject to FastISEL as
well. However, FastISEL is only triggered when

  SelectionDAGISel::runOnMachineFunction(MF);

is called. Since this CreateStackObject comes before that call it will be done
for ROP at all opt levels.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D99377/new/

https://reviews.llvm.org/D99377

Files:
  llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
  llvm/lib/Target/PowerPC/PPCMachineFunctionInfo.h
  llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
  llvm/lib/Target/PowerPC/PPCRegisterInfo.h
  llvm/test/CodeGen/PowerPC/ppc64-rop-protection.ll

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