[PATCH] D18827: Rework/enhance stack coloring data flow analysis.

[Than McIntosh via llvm-commits]

thanm updated this revision to Diff 56315.
thanm added a comment.

Revise stack coloring patch to handle degenerate slots.

Update to the enhancement to handle cases where references
to a given stack slot appear outside of the lifetime
start/end markers (this can happen due to optimizations
such as LICM).


http://reviews.llvm.org/D18827

Files:
  lib/CodeGen/StackColoring.cpp
  test/CodeGen/X86/StackColoring.ll
  test/CodeGen/X86/misched-aa-colored.ll

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