[PATCH] D13450: [WinEH] Implement state numbering for CoreCLR

[Joseph Tremoulet via llvm-commits]

JosephTremoulet created this revision.
JosephTremoulet added reviewers: rnk, majnemer, andrew.w.kaylor.
JosephTremoulet added a subscriber: llvm-commits.

Assign one state number per handler/funclet, tracking parent state,
handler type, and catch type token.
State numbers are arranged such that ancestors have lower state numbers
than their descendants.

http://reviews.llvm.org/D13450

Files:
  include/llvm/CodeGen/WinEHFuncInfo.h
  lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
  lib/CodeGen/WinEHPrepare.cpp

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