[WinEH] Run cleanup handlers when an exception is thrown

Generate tables in the .xdata section representing what actions to take
when an exception is thrown.  This currently fills in state for
cleanups, catch handlers are still unfinished.

llvm-svn: 233636

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 17950058bb2..3de9c26a905 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -33,6 +33,7 @@
 #include "llvm/CodeGen/SchedulerRegistry.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/CodeGen/SelectionDAGISel.h"
+#include "llvm/CodeGen/WinEHFuncInfo.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DebugInfo.h"
 #include "llvm/IR/Function.h"
@@ -988,6 +989,10 @@ void SelectionDAGISel::PrepareEHLandingPad() {
     FuncInfo->InsertPt = MBB->end();
     return;
   }
+  if (MF->getMMI().getPersonalityType() == EHPersonality::MSVC_CXX) {
+    WinEHFuncInfo &FuncInfo = MF->getMMI().getWinEHFuncInfo(MF->getFunction());
+    MF->getMMI().addWinEHState(MBB, FuncInfo.LandingPadStateMap[LPadInst]);
+  }
 
   // Mark exception register as live in.
   if (unsigned Reg = TLI->getExceptionPointerRegister())