[PATCH] D17095: [X86] Add X86FixupSeparateStack pass

[Michael LeMay via llvm-commits]

mlemay-intel updated this revision to Diff 72843.
mlemay-intel added a comment.

Avoids erasing previous derivation data when a register is both used and defined in an instruction.  
Ignores implicit and undef registers when tracking derivation.
Removes code and associated options for tracking variadic argument pointers.
Eliminates assert on storing stack pointers to memory.


https://reviews.llvm.org/D17095

Files:
  lib/Target/X86/CMakeLists.txt
  lib/Target/X86/X86.h
  lib/Target/X86/X86.td
  lib/Target/X86/X86FixupSeparateStack.cpp
  lib/Target/X86/X86Subtarget.cpp
  lib/Target/X86/X86Subtarget.h
  lib/Target/X86/X86TargetMachine.cpp
  test/CodeGen/X86/separate-stack-seg-ignore-va.ll
  test/CodeGen/X86/separate-stack-seg.ll

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