[PATCH] D29652: [X86] Add X86SafeStackBoundsCheckingCombiner pass

[Michael LeMay via Phabricator via llvm-commits]

mlemay-intel created this revision.
Herald added a subscriber: mgorny.

The X86SafeStackBoundsCheckingCombiner pre-emit pass analyzes MPX BNDCU
instructions inserted by the X86SafeStackBoundsChecking pass to combine
redundant checks and eliminate unneeded checks.


https://reviews.llvm.org/D29652

Files:
  lib/Target/X86/CMakeLists.txt
  lib/Target/X86/X86.h
  lib/Target/X86/X86SafeStackBoundsCheckingCombiner.cpp
  lib/Target/X86/X86TargetMachine.cpp
  test/CodeGen/X86/safestack-bounds-checking-combiner.mir

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