[PATCH] D40622: XOR the frame pointer with the stack cookie when protecting the stack

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.
Herald added subscribers: JDevlieghere, hiraditya.

This strengthens the guard and matches MSVC.


https://reviews.llvm.org/D40622

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/test/CodeGen/X86/stack-protector-msvc.ll
  llvm/test/CodeGen/X86/stack-protector.ll
  llvm/test/DebugInfo/COFF/fpo-stack-protect.ll

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