[WinEH] Implement state numbering for CoreCLR

Summary:
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.

Reviewers: majnemer, andrew.w.kaylor, rnk

Subscribers: pgavlin, AndyAyers, llvm-commits

Differential Revision: http://reviews.llvm.org/D13450

llvm-svn: 249457

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index fb455943f90..d718ede35cd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -292,6 +292,8 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf,
     calculateWinCXXEHStateNumbers(WinEHParentFn, EHInfo);
   else if (isAsynchronousEHPersonality(Personality))
     calculateSEHStateNumbers(WinEHParentFn, EHInfo);
+  else if (Personality == EHPersonality::CoreCLR)
+    calculateClrEHStateNumbers(WinEHParentFn, EHInfo);
 
   calculateCatchReturnSuccessorColors(WinEHParentFn, EHInfo);
 
@@ -316,6 +318,10 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf,
     const BasicBlock *BB = UME.Handler.get<const BasicBlock *>();
     UME.Handler = MBBMap[BB];
   }
+  for (ClrEHUnwindMapEntry &CME : EHInfo.ClrEHUnwindMap) {
+    const BasicBlock *BB = CME.Handler.get<const BasicBlock *>();
+    CME.Handler = MBBMap[BB];
+  }
 
   // If there's an explicit EH registration node on the stack, record its
   // frame index.