Update clang to use the updated LLVM EH instructions

[majnemer]

Summary

Depends on D15139.

[majnemer]

• Updated for the latest EH changes

[majnemer]

• Updated for LLVM changes

[rnk]

lib/CodeGen/CGCall.cpp

3482

I guess we have a cleaner way of writing this:

EHPersonality::get(*this).isMSVCXXPersonality()

lib/CodeGen/CGException.cpp

899

This creates one extra basic block per catch handler. Why not insert the catchpadinst directly into Handler.Block, emit Handler.Block, and add Handler.Block to the switch?

If this disturbs the test cases too much, then we can punt on it for now.

909

If we go with the suggestion above, we don't need this Br.

lib/CodeGen/MicrosoftCXXABI.cpp

895–896

If we emit the catchpadinst into Handler.Block, we can drop the 'getSinglePredecessor' call.

[majnemer]

• Updated for the latest EH changes
• Updated for LLVM changes
• Address review comments

lib/CodeGen/CGCall.cpp

 // These classes wrap the information about a call or function
 // definition used to handle ABI compliancy.
 //
 //===----------------------------------------------------------------------===//
 
 #include "CGCall.h"
 #include "ABIInfo.h"
 #include "CGCXXABI.h"
+#include "CGCleanup.h"
 #include "CodeGenFunction.h"
 #include "CodeGenModule.h"
 #include "TargetInfo.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/Basic/TargetBuiltins.h"
 #include "clang/Basic/TargetInfo.h"
#endif
 
   unsigned CallingConv;
   CodeGen::AttributeListType AttributeList;
   CGM.ConstructAttributeList(CallInfo, CalleeInfo, AttributeList, CallingConv,
                              true);
   llvm::AttributeSet Attrs = llvm::AttributeSet::get(getLLVMContext(),
                                                      AttributeList);
 
-  llvm::BasicBlock *InvokeDest = nullptr;
-  if (!Attrs.hasAttribute(llvm::AttributeSet::FunctionIndex,
-                          llvm::Attribute::NoUnwind) ||
-      currentFunctionUsesSEHTry())
-    InvokeDest = getInvokeDest();
+  bool CannotThrow;
+  if (currentFunctionUsesSEHTry()) {
+    // SEH cares about asynchronous exceptions, everything can "throw."
+    CannotThrow = false;
+  } else if (isCleanupPadScope() &&
+             EHPersonality::get(*this).isMSVCXXPersonality()) {
+    // The MSVC++ personality will implicitly terminate the program if an
+    // exception is thrown.  An unwind edge cannot be reached.
+    CannotThrow = true;
+  } else {
+    // Otherwise, nowunind callsites will never throw.
+    CannotThrow = Attrs.hasAttribute(llvm::AttributeSet::FunctionIndex,
+                                     llvm::Attribute::NoUnwind);
+  }
+  llvm::BasicBlock *InvokeDest = CannotThrow ? nullptr : getInvokeDest();
 
   llvm::CallSite CS;
   if (!InvokeDest) {
     CS = Builder.CreateCall(Callee, IRCallArgs);
   } else {
     llvm::BasicBlock *Cont = createBasicBlock("invoke.cont");
     CS = Builder.CreateInvoke(Callee, Cont, InvokeDest, IRCallArgs);
     EmitBlock(Cont);
   }
   if (callOrInvoke)
     *callOrInvoke = CS.getInstruction();
 
   if (CurCodeDecl && CurCodeDecl->hasAttr<FlattenAttr>() &&
       !CS.hasFnAttr(llvm::Attribute::NoInline))
     Attrs =
         Attrs.addAttribute(getLLVMContext(), llvm::AttributeSet::FunctionIndex,
                            llvm::Attribute::AlwaysInline);
 
-  // Disable inlining inside SEH __try blocks and cleanup funclets. None of the
-  // funclet EH personalities that clang supports have tables that are
-  // expressive enough to describe catching an exception inside a cleanup.
-  // __CxxFrameHandler3, for example, will terminate the program without
-  // catching it.
-  // FIXME: Move this decision to the LLVM inliner. Before we can do that, the
-  // inliner needs to know if a given call site is part of a cleanuppad.
-  if (isSEHTryScope() || isCleanupPadScope())
+  // Disable inlining inside SEH __try blocks.
+  if (isSEHTryScope())
     Attrs =
         Attrs.addAttribute(getLLVMContext(), llvm::AttributeSet::FunctionIndex,
                            llvm::Attribute::NoInline);
 
   CS.setAttributes(Attrs);
   CS.setCallingConv(static_cast<llvm::CallingConv::ID>(CallingConv));
 
   // In ObjC ARC mode with no ObjC ARC exception safety, tell the ARC

lib/CodeGen/CGCleanup.h

 inline void EHScopeStack::popTerminate() {
   assert(!empty() && "popping exception stack when not empty");
 
   EHTerminateScope &scope = cast<EHTerminateScope>(*begin());
   InnermostEHScope = scope.getEnclosingEHScope();
   deallocate(EHTerminateScope::getSize());
 }
 
-inline void EHScopeStack::popPadEnd() {
-  assert(!empty() && "popping exception stack when not empty");
-
-  EHPadEndScope &scope = cast<EHPadEndScope>(*begin());
-  InnermostEHScope = scope.getEnclosingEHScope();
-  deallocate(EHPadEndScope::getSize());
-}
-
 inline EHScopeStack::iterator EHScopeStack::find(stable_iterator sp) const {
   assert(sp.isValid() && "finding invalid savepoint");
   assert(sp.Size <= stable_begin().Size && "finding savepoint after pop");
   return iterator(EndOfBuffer - sp.Size);
 }
 
 inline EHScopeStack::stable_iterator
 EHScopeStack::stabilize(iterator ir) const {

lib/CodeGen/CGCleanup.cpp

 }
 
 void EHScopeStack::pushTerminate() {
   char *Buffer = allocate(EHTerminateScope::getSize());
   new (Buffer) EHTerminateScope(InnermostEHScope);
   InnermostEHScope = stable_begin();
 }
 
-void EHScopeStack::pushPadEnd(llvm::BasicBlock *PadEndBB) {
-  char *Buffer = allocate(EHPadEndScope::getSize());
-  auto *CES = new (Buffer) EHPadEndScope(InnermostEHScope);
-  CES->setCachedEHDispatchBlock(PadEndBB);
-  InnermostEHScope = stable_begin();
-}
-
 /// Remove any 'null' fixups on the stack.  However, we can't pop more
 /// fixups than the fixup depth on the innermost normal cleanup, or
 /// else fixups that we try to add to that cleanup will end up in the
 /// wrong place.  We *could* try to shrink fixup depths, but that's
 /// actually a lot of work for little benefit.
 void EHScopeStack::popNullFixups() {
   // We expect this to only be called when there's still an innermost
   // normal cleanup;  otherwise there really shouldn't be any fixups.
if (RequiresEHCleanup) {
     EmitBlock(EHEntry);
 
     llvm::BasicBlock *NextAction = getEHDispatchBlock(EHParent);
 
     // Push a terminate scope or cleanupendpad scope around the potentially
     // throwing cleanups. For funclet EH personalities, the cleanupendpad models
     // program termination when cleanups throw.
     bool PushedTerminate = false;
-    SaveAndRestore<bool> RestoreIsCleanupPadScope(IsCleanupPadScope);
+    SaveAndRestore<llvm::Instruction *> RestoreCurrentFuncletPad(
+        CurrentFuncletPad);
     llvm::CleanupPadInst *CPI = nullptr;
-    llvm::BasicBlock *CleanupEndBB = nullptr;
     if (!EHPersonality::get(*this).usesFuncletPads()) {
       EHStack.pushTerminate();
       PushedTerminate = true;
     } else {
-      CPI = Builder.CreateCleanupPad({});
-
-      // Build a cleanupendpad to unwind through. Our insertion point should be
-      // in the cleanuppad block.
-      CleanupEndBB = createBasicBlock("ehcleanup.end");
-      CGBuilderTy(*this, CleanupEndBB).CreateCleanupEndPad(CPI, NextAction);
-      EHStack.pushPadEnd(CleanupEndBB);
-
-      // Mark that we're inside a cleanuppad to block inlining.
-      // FIXME: Remove this once the inliner knows when it's safe to do so.
-      IsCleanupPadScope = true;
+      llvm::Value *ParentPad = CurrentFuncletPad;
+      if (!ParentPad)
+        ParentPad = llvm::ConstantTokenNone::get(CGM.getLLVMContext());
+      CurrentFuncletPad = CPI = Builder.CreateCleanupPad(ParentPad);
     }
 
     // We only actually emit the cleanup code if the cleanup is either
     // active or was used before it was deactivated.
     if (EHActiveFlag.isValid() || IsActive) {
       cleanupFlags.setIsForEHCleanup();
       EmitCleanup(*this, Fn, cleanupFlags, EHActiveFlag);
     }
 
     if (CPI)
       Builder.CreateCleanupRet(CPI, NextAction);
     else
       Builder.CreateBr(NextAction);
 
-    // Insert the cleanupendpad block here, if it has any uses.
-    if (CleanupEndBB) {
-      EHStack.popPadEnd();
-      if (CleanupEndBB->hasNUsesOrMore(1)) {
-        CurFn->getBasicBlockList().insertAfter(
-            Builder.GetInsertBlock()->getIterator(), CleanupEndBB);
-      } else {
-        delete CleanupEndBB;
-      }
-    }
-
     // Leave the terminate scope.
     if (PushedTerminate)
       EHStack.popTerminate();
 
     Builder.restoreIP(SavedIP);
 
     SimplifyCleanupEntry(*this, EHEntry);
   }

lib/CodeGen/CGException.cpp

done:
   Builder.CreateBr(getEHDispatchBlock(EHStack.getInnermostEHScope()));
 
   // Restore the old IR generation state.
   Builder.restoreIP(savedIP);
 
   return lpad;
 }
 
-static llvm::BasicBlock *emitCatchPadBlock(CodeGenFunction &CGF,
-                                           EHCatchScope &CatchScope) {
+static void emitCatchPadBlock(CodeGenFunction &CGF, EHCatchScope &CatchScope) {
   llvm::BasicBlock *DispatchBlock = CatchScope.getCachedEHDispatchBlock();
   assert(DispatchBlock);
 
   CGBuilderTy::InsertPoint SavedIP = CGF.Builder.saveIP();
   CGF.EmitBlockAfterUses(DispatchBlock);
 
-  // Figure out the next block.
-  llvm::BasicBlock *NextBlock = nullptr;
+  llvm::Value *ParentPad = CGF.CurrentFuncletPad;
+  if (!ParentPad)
+    ParentPad = llvm::ConstantTokenNone::get(CGF.getLLVMContext());
+  llvm::BasicBlock *UnwindBB =
+      CGF.getEHDispatchBlock(CatchScope.getEnclosingEHScope());
+
+  unsigned NumHandlers = CatchScope.getNumHandlers();
+  llvm::CatchSwitchInst *CatchSwitch =
+      CGF.Builder.CreateCatchSwitch(ParentPad, UnwindBB, NumHandlers);
 
   // Test against each of the exception types we claim to catch.
-  for (unsigned I = 0, E = CatchScope.getNumHandlers(); I < E; ++I) {
+  for (unsigned I = 0; I < NumHandlers; ++I) {
     const EHCatchScope::Handler &Handler = CatchScope.getHandler(I);
 
     CatchTypeInfo TypeInfo = Handler.Type;
     if (!TypeInfo.RTTI)
       TypeInfo.RTTI = llvm::Constant::getNullValue(CGF.VoidPtrTy);
 
-    // If this is the last handler, we're at the end, and the next
-    // block is the block for the enclosing EH scope.
-    if (I + 1 == E) {
-      NextBlock = CGF.createBasicBlock("catchendblock");
-      CGBuilderTy(CGF, NextBlock).CreateCatchEndPad(
-          CGF.getEHDispatchBlock(CatchScope.getEnclosingEHScope()));
-    } else {
-      NextBlock = CGF.createBasicBlock("catch.dispatch");
-    }
+    CGF.Builder.SetInsertPoint(Handler.Block);
 
     if (EHPersonality::get(CGF).isMSVCXXPersonality()) {
-      CGF.Builder.CreateCatchPad(Handler.Block, NextBlock,
-                                 {TypeInfo.RTTI,
-                                  CGF.Builder.getInt32(TypeInfo.Flags),
-                                  llvm::Constant::getNullValue(CGF.VoidPtrTy)});
+      CGF.Builder.CreateCatchPad(
+          CatchSwitch, {TypeInfo.RTTI, CGF.Builder.getInt32(TypeInfo.Flags),
     } else {
-      CGF.Builder.CreateCatchPad(Handler.Block, NextBlock, {TypeInfo.RTTI});
+      CGF.Builder.CreateCatchPad(CatchSwitch, {TypeInfo.RTTI});
     }
 
-    // Otherwise we need to emit and continue at that block.
-    CGF.EmitBlock(NextBlock);
+    CatchSwitch->addHandler(Handler.Block);
   }
   CGF.Builder.restoreIP(SavedIP);
-
-  return NextBlock;
 }
 
 /// Emit the structure of the dispatch block for the given catch scope.
 /// It is an invariant that the dispatch block already exists.
-/// If the catchblock instructions are used for EH dispatch, then the basic
-/// block holding the final catchendblock instruction is returned.
-static llvm::BasicBlock *emitCatchDispatchBlock(CodeGenFunction &CGF,
-                                                EHCatchScope &catchScope) {
+static void emitCatchDispatchBlock(CodeGenFunction &CGF,
   if (EHPersonality::get(CGF).usesFuncletPads())
     return emitCatchPadBlock(CGF, catchScope);
 
   llvm::BasicBlock *dispatchBlock = catchScope.getCachedEHDispatchBlock();
   assert(dispatchBlock);
 
   // If there's only a single catch-all, getEHDispatchBlock returned
   // that catch-all as the dispatch block.
   if (catchScope.getNumHandlers() == 1 &&
       catchScope.getHandler(0).isCatchAll()) {
     assert(dispatchBlock == catchScope.getHandler(0).Block);
-    return nullptr;
+    return;
   }
 
   CGBuilderTy::InsertPoint savedIP = CGF.Builder.saveIP();
   CGF.EmitBlockAfterUses(dispatchBlock);
 
   // Select the right handler.
   llvm::Value *llvm_eh_typeid_for =
     CGF.CGM.getIntrinsic(llvm::Intrinsic::eh_typeid_for);
for (unsigned i = 0, e = catchScope.getNumHandlers(); ; ++i) {
 
     llvm::Value *matchesTypeIndex =
       CGF.Builder.CreateICmpEQ(selector, typeIndex, "matches");
     CGF.Builder.CreateCondBr(matchesTypeIndex, handler.Block, nextBlock);
 
     // If the next handler is a catch-all, we're completely done.
     if (nextIsEnd) {
       CGF.Builder.restoreIP(savedIP);
-      return nullptr;
+      return;
     }
     // Otherwise we need to emit and continue at that block.
     CGF.EmitBlock(nextBlock);
   }
-  return nullptr;
 }
 
 void CodeGenFunction::popCatchScope() {
   EHCatchScope &catchScope = cast<EHCatchScope>(*EHStack.begin());
   if (catchScope.hasEHBranches())
     emitCatchDispatchBlock(*this, catchScope);
   EHStack.popCatch();
 }
 
 void CodeGenFunction::ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock) {
   unsigned NumHandlers = S.getNumHandlers();
   EHCatchScope &CatchScope = cast<EHCatchScope>(*EHStack.begin());
   assert(CatchScope.getNumHandlers() == NumHandlers);
 
   // If the catch was not required, bail out now.
   if (!CatchScope.hasEHBranches()) {
     CatchScope.clearHandlerBlocks();
     EHStack.popCatch();
     return;
   }
 
   // Emit the structure of the EH dispatch for this catch.
-  llvm::BasicBlock *CatchEndBlockBB = emitCatchDispatchBlock(*this, CatchScope);
+  emitCatchDispatchBlock(*this, CatchScope);
 
   // Copy the handler blocks off before we pop the EH stack.  Emitting
   // the handlers might scribble on this memory.
   SmallVector<EHCatchScope::Handler, 8> Handlers(
       CatchScope.begin(), CatchScope.begin() + NumHandlers);
 
   EHStack.popCatch();
 
   // The fall-through block.
   llvm::BasicBlock *ContBB = createBasicBlock("try.cont");
 
   // We just emitted the body of the try; jump to the continue block.
   if (HaveInsertPoint())
     Builder.CreateBr(ContBB);
 
   // Determine if we need an implicit rethrow for all these catch handlers;
   // see the comment below.
   bool doImplicitRethrow = false;
   if (IsFnTryBlock)
     doImplicitRethrow = isa<CXXDestructorDecl>(CurCodeDecl) ||
                         isa<CXXConstructorDecl>(CurCodeDecl);
 
-  if (CatchEndBlockBB)
-    EHStack.pushPadEnd(CatchEndBlockBB);
-
   // Perversely, we emit the handlers backwards precisely because we
   // want them to appear in source order.  In all of these cases, the
   // catch block will have exactly one predecessor, which will be a
   // particular block in the catch dispatch.  However, in the case of
   // a catch-all, one of the dispatch blocks will branch to two
   // different handlers, and EmitBlockAfterUses will cause the second
   // handler to be moved before the first.
   for (unsigned I = NumHandlers; I != 0; --I) {
     llvm::BasicBlock *CatchBlock = Handlers[I-1].Block;
     EmitBlockAfterUses(CatchBlock);
 
     // Catch the exception if this isn't a catch-all.
     const CXXCatchStmt *C = S.getHandler(I-1);
 
     // Enter a cleanup scope, including the catch variable and the
     // end-catch.
     RunCleanupsScope CatchScope(*this);
 
     // Initialize the catch variable and set up the cleanups.
+    SaveAndRestore<llvm::Instruction *> RestoreCurrentFuncletPad(
+        CurrentFuncletPad);
     CGM.getCXXABI().emitBeginCatch(*this, C);
 
     // Emit the PGO counter increment.
     incrementProfileCounter(C);
 
     // Perform the body of the catch.
     EmitStmt(C->getHandlerBlock());
 
for (unsigned I = NumHandlers; I != 0; --I) {
 
     // Branch out of the try.
     if (HaveInsertPoint())
       Builder.CreateBr(ContBB);
   }
 
   EmitBlock(ContBB);
   incrementProfileCounter(&S);
-  if (CatchEndBlockBB)
-    EHStack.popPadEnd();
 }
 
 namespace {
   struct CallEndCatchForFinally final : EHScopeStack::Cleanup {
     llvm::Value *ForEHVar;
     llvm::Value *EndCatchFn;
     CallEndCatchForFinally(llvm::Value *ForEHVar, llvm::Value *EndCatchFn)
       : ForEHVar(ForEHVar), EndCatchFn(EndCatchFn) {}
llvm::BasicBlock *CodeGenFunction::getTerminateHandler() {
 
   CGBuilderTy::InsertPoint SavedIP = Builder.saveAndClearIP();
 
   // Set up the terminate handler.  This block is inserted at the very
   // end of the function by FinishFunction.
   TerminateHandler = createBasicBlock("terminate.handler");
   Builder.SetInsertPoint(TerminateHandler);
   if (EHPersonality::get(*this).usesFuncletPads()) {
-    Builder.CreateTerminatePad(/*UnwindBB=*/nullptr, CGM.getTerminateFn());
+    llvm::Value *ParentPad = CurrentFuncletPad;
+    if (!ParentPad)
+      ParentPad = llvm::ConstantTokenNone::get(CGM.getLLVMContext());
+    Builder.CreateTerminatePad(ParentPad, /*UnwindBB=*/nullptr,
+                               {CGM.getTerminateFn()});
   } else {
     llvm::Value *Exn = nullptr;
     if (getLangOpts().CPlusPlus)
       Exn = getExceptionFromSlot();
     llvm::CallInst *terminateCall =
         CGM.getCXXABI().emitTerminateForUnexpectedException(*this, Exn);
     terminateCall->setDoesNotReturn();
     Builder.CreateUnreachable();
void CodeGenFunction::ExitSEHTryStmt(const SEHTryStmt &S) {
   // We just emitted the body of the __try; jump to the continue block.
   if (HaveInsertPoint())
     Builder.CreateBr(ContBB);
 
   // Check if our filter function returned true.
   emitCatchDispatchBlock(*this, CatchScope);
 
   // Grab the block before we pop the handler.
-  llvm::BasicBlock *ExceptBB = CatchScope.getHandler(0).Block;
+  llvm::BasicBlock *CatchPadBB = CatchScope.getHandler(0).Block;
   EHStack.popCatch();
 
-  EmitBlockAfterUses(ExceptBB);
+  EmitBlockAfterUses(CatchPadBB);
 
   // __except blocks don't get outlined into funclets, so immediately do a
   // catchret.
-  llvm::BasicBlock *CatchPadBB = ExceptBB->getSinglePredecessor();
-  assert(CatchPadBB && "only ExceptBB pred should be catchpad");
   llvm::CatchPadInst *CPI =
       cast<llvm::CatchPadInst>(CatchPadBB->getFirstNonPHI());
-  ExceptBB = createBasicBlock("__except");
+  llvm::BasicBlock *ExceptBB = createBasicBlock("__except");
   Builder.CreateCatchRet(CPI, ExceptBB);
   EmitBlock(ExceptBB);
 
   // On Win64, the exception code is returned in EAX. Copy it into the slot.
   if (CGM.getTarget().getTriple().getArch() != llvm::Triple::x86) {
     llvm::Function *SEHCodeIntrin =
         CGM.getIntrinsic(llvm::Intrinsic::eh_exceptioncode);
     llvm::Value *Code = Builder.CreateCall(SEHCodeIntrin, {CPI});

lib/CodeGen/CodeGenFunction.h

public:
   /// Whether we processed a Microsoft-style asm block during CodeGen. These can
   /// potentially set the return value.
   bool SawAsmBlock;
 
   /// True if the current function is an outlined SEH helper. This can be a
   /// finally block or filter expression.
   bool IsOutlinedSEHHelper;
 
-  bool IsCleanupPadScope = false;
-
   const CodeGen::CGBlockInfo *BlockInfo;
   llvm::Value *BlockPointer;
 
   llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields;
   FieldDecl *LambdaThisCaptureField;
 
   /// \brief A mapping from NRVO variables to the flags used to indicate
   /// when the NRVO has been applied to this variable.
   llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags;
 
   EHScopeStack EHStack;
   llvm::SmallVector<char, 256> LifetimeExtendedCleanupStack;
   llvm::SmallVector<const JumpDest *, 2> SEHTryEpilogueStack;
 
+  llvm::Instruction *CurrentFuncletPad = nullptr;
+
   /// Header for data within LifetimeExtendedCleanupStack.
   struct LifetimeExtendedCleanupHeader {
     /// The size of the following cleanup object.
     unsigned Size;
     /// The kind of cleanup to push: a value from the CleanupKind enumeration.
     CleanupKind Kind;
 
     size_t getSize() const { return Size; }
void enter(CodeGenFunction &CGF, const Stmt *Finally,
                llvm::Constant *rethrowFn);
     void exit(CodeGenFunction &CGF);
   };
 
   /// Returns true inside SEH __try blocks.
   bool isSEHTryScope() const { return !SEHTryEpilogueStack.empty(); }
 
   /// Returns true while emitting a cleanuppad.
-  bool isCleanupPadScope() const { return IsCleanupPadScope; }
+  bool isCleanupPadScope() const {
+    return CurrentFuncletPad && isa<llvm::CleanupPadInst>(CurrentFuncletPad);
+  }
 
   /// pushFullExprCleanup - Push a cleanup to be run at the end of the
   /// current full-expression.  Safe against the possibility that
   /// we're currently inside a conditionally-evaluated expression.
   template <class T, class... As>
   void pushFullExprCleanup(CleanupKind kind, As... A) {
     // If we're not in a conditional branch, or if none of the
     // arguments requires saving, then use the unconditional cleanup.

lib/CodeGen/EHScopeStack.h

public:
   void popFilter();
 
   /// Push a terminate handler on the stack.
   void pushTerminate();
 
   /// Pops a terminate handler off the stack.
   void popTerminate();
 
-  void pushPadEnd(llvm::BasicBlock *PadEndBB);
-
-  void popPadEnd();
-
   // Returns true iff the current scope is either empty or contains only
   // lifetime markers, i.e. no real cleanup code
   bool containsOnlyLifetimeMarkers(stable_iterator Old) const;
 
   /// Determines whether the exception-scopes stack is empty.
   bool empty() const { return StartOfData == EndOfBuffer; }
 
   bool requiresLandingPad() const {

lib/CodeGen/MicrosoftCXXABI.cpp

struct CatchRetScope final : EHScopeStack::Cleanup {
   }
 };
 }
 
 void MicrosoftCXXABI::emitBeginCatch(CodeGenFunction &CGF,
                                      const CXXCatchStmt *S) {
   // In the MS ABI, the runtime handles the copy, and the catch handler is
   // responsible for destruction.
   VarDecl *CatchParam = S->getExceptionDecl();
-  llvm::BasicBlock *CatchPadBB =
-      CGF.Builder.GetInsertBlock()->getSinglePredecessor();
+  llvm::BasicBlock *CatchPadBB = CGF.Builder.GetInsertBlock();
   llvm::CatchPadInst *CPI =
       cast<llvm::CatchPadInst>(CatchPadBB->getFirstNonPHI());
+  CGF.CurrentFuncletPad = CPI;
 
   // If this is a catch-all or the catch parameter is unnamed, we don't need to
   // emit an alloca to the object.
   if (!CatchParam || !CatchParam->getDeclName()) {
     CGF.EHStack.pushCleanup<CatchRetScope>(NormalCleanup, CPI);
     return;
   }
 

test/CodeGen/exceptions-seh-finally.c

 // CHECK: [[invoke_cont]]
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK: call void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 0, i8* %[[fp]])
 // CHECK-NEXT: ret void
 //
 // CHECK: [[lpad]]
 // CHECK-NEXT: %[[pad:[^ ]*]] = cleanuppad
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK: invoke void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
-// CHECK-NEXT: to label %{{.*}} unwind label %[[end:[^ ]*]]
-// CHECK: cleanupret %[[pad]] unwind to caller
-//
-// CHECK: [[end]]
-// CHECK: cleanupendpad %[[pad]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
+// CHECK-NEXT: cleanupret from %[[pad]] unwind to caller
 
 // CHECK: define internal void @"\01?fin$0@0@basic_finally@@"({{.*}})
 // CHECK: call void @cleanup()
 
 // Mostly check that we don't double emit 'r' which would crash.
 void decl_in_finally(void) {
   __try {
     might_crash();

 // CHECK: [[invoke_cont]]
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK: call void @"\01?fin$0@0@use_abnormal_termination@@"({{i8( zeroext)?}} 0, i8* %[[fp]])
 // CHECK: ret void
 //
 // CHECK: [[lpad]]
 // CHECK-NEXT: %[[pad:[^ ]*]] = cleanuppad
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK: invoke void @"\01?fin$0@0@use_abnormal_termination@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
-// CHECK-NEXT: to label %{{.*}} unwind label %[[end:[^ ]*]]
-// CHECK: cleanupret %[[pad]] unwind to caller
-//
-// CHECK: [[end]]
-// CHECK: cleanupendpad %[[pad]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@use_abnormal_termination@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
+// CHECK-NEXT: cleanupret from %[[pad]] unwind to caller
 
 // CHECK: define internal void @"\01?fin$0@0@use_abnormal_termination@@"({{i8( zeroext)?}} %[[abnormal:abnormal_termination]], i8* %frame_pointer)
 // CHECK: %[[abnormal_zext:[^ ]*]] = zext i8 %[[abnormal]] to i32
 // CHECK: store i32 %[[abnormal_zext]], i32* @crashed
 // CHECK-NEXT: ret void
 
 void noreturn_noop_finally() {
   __try {

 // CHECK:     to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
 //
 // CHECK: [[cont]]
 // CHECK: call void @"\01?fin$0@0@noreturn_finally@@"({{.*}})
 // CHECK: ret void
 //
 // CHECK: [[lpad]]
 // CHECK-NEXT: %[[pad:[^ ]*]] = cleanuppad
-// CHECK: invoke void @"\01?fin$0@0@noreturn_finally@@"({{.*}})
-// CHECK-NEXT: to label %{{.*}} unwind label %[[end:[^ ]*]]
-// CHECK: cleanupret %[[pad]] unwind to caller
-//
-// CHECK: [[end]]
-// CHECK: cleanupendpad %[[pad]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@noreturn_finally@@"({{.*}})
+// CHECK-NEXT: cleanupret from %[[pad]] unwind to caller
 
 // CHECK: define internal void @"\01?fin$0@0@noreturn_finally@@"({{.*}})
 // CHECK: call void @abort()
 // CHECK: unreachable
 
 int finally_with_return() {
   __try {
     return 42;

 // CHECK:          to label %[[outercont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
 //
 // CHECK: [[outercont]]
 // CHECK: call void @"\01?fin$0@0@nested___finally___finally@@"({{.*}})
 // CHECK-NEXT: ret i32 0
 //
 // CHECK: [[lpad]]
 // CHECK-NEXT: %[[pad:[^ ]*]] = cleanuppad
-// CHECK: invoke void @"\01?fin$0@0@nested___finally___finally@@"({{.*}})
-// CHECK-NEXT: to label %{{.*}} unwind label %[[end:[^ ]*]]
-// CHECK: cleanupret %[[pad]] unwind to caller
-//
-// CHECK: [[end]]
-// CHECK: cleanupendpad %[[pad]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@nested___finally___finally@@"({{.*}})
+// CHECK-NEXT: cleanupret from %[[pad]] unwind to caller
 
 // CHECK-LABEL: define internal void @"\01?fin$0@0@nested___finally___finally@@"({{.*}})
 // CHECK: ret void
 
 // CHECK-LABEL: define internal void @"\01?fin$1@0@nested___finally___finally@@"({{.*}})
 // CHECK: unreachable
 
 // FIXME: Our behavior seems suspiciously different.

 //
 // CHECK: [[outercont]]
 // CHECK: call void @"\01?fin$0@0@nested___finally___finally_with_eh_edge@@"({{.*}})
 // CHECK-NEXT: ret i32 912
 //
 // CHECK: [[lpad1]]
 // CHECK-NEXT: %[[innerpad:[^ ]*]] = cleanuppad
 // CHECK: invoke void @"\01?fin$1@0@nested___finally___finally_with_eh_edge@@"({{.*}})
-// CHECK-NEXT:     to label %[[innercleanupretbb:[^ ]*]] unwind label %[[innerend:[^ ]*]]
+// CHECK-NEXT:    label %[[innercleanupretbb:[^ ]*]] unwind label %[[lpad2:[^ ]*]]
 //
 // CHECK: [[innercleanupretbb]]
-// CHECK-NEXT: cleanupret %[[innerpad]] unwind label %[[lpad2]]
-//
-// CHECK: [[innerend]]
-// CHECK-NEXT: cleanupendpad %[[innerpad]] unwind label %[[lpad2:[^ ]*]]
+// CHECK-NEXT: cleanupret from %[[innerpad]] unwind label %[[lpad2]]
 //
 // CHECK: [[lpad2]]
 // CHECK-NEXT: %[[outerpad:[^ ]*]] = cleanuppad
-// CHECK: invoke void @"\01?fin$0@0@nested___finally___finally_with_eh_edge@@"({{.*}})
-// CHECK-NEXT:     to label %[[outercleanupretbb:[^ ]*]] unwind label %[[outerend:[^ ]*]]
-//
-// CHECK: [[outercleanupretbb]]
-// CHECK-NEXT: cleanupret %[[outerpad]] unwind to caller
-//
-// CHECK: [[outerend]]
-// CHECK-NEXT: cleanupendpad %[[outerpad]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@nested___finally___finally_with_eh_edge@@"({{.*}})
+// CHECK-NEXT: cleanupret from %[[outerpad]] unwind to caller
 
 // CHECK-LABEL: define internal void @"\01?fin$0@0@nested___finally___finally_with_eh_edge@@"({{.*}})
 // CHECK: ret void
 
 // CHECK-LABEL: define internal void @"\01?fin$1@0@nested___finally___finally_with_eh_edge@@"({{.*}})
 // CHECK: unreachable

test/CodeGen/exceptions-seh-leave.c

 // CHECK: [[fin_cont]]
 // CHECK: store i32 51, i32* %
 // CHECK-NEXT: br label %[[trycont:[^ ]*]]
 
 // CHECK: [[g1_lpad]]
 // CHECK-NEXT: cleanuppad
 // CHECK-NEXT: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK-NEXT: invoke void @"\01?fin$0@0@nested___except___finally@@"(i8 1, i8* %[[fp]])
-// CHECK-NEXT:       to label %[[g1_resume:.*]] unwind label %[[cleanupend:[^ ]*]]
+// CHECK-NEXT:       to label %[[g1_resume:.*]] unwind label %[[g2_lpad]]
 // CHECK: cleanupret {{.*}} unwind label %[[g2_lpad]]
 
 // CHECK: [[g2_lpad]]
-// CHECK: catchpad [i8* null]
+// CHECK: catchpad {{.*}} [i8* null]
 // CHECK: catchret
 // CHECK: br label %[[trycont]]
 
 // CHECK: [[trycont]]
 // CHECK-NEXT: ret i32 1
 
-// CHECK: [[cleanupend]]
-// CHECK-NEXT: cleanupendpad {{.*}} unwind label %[[g2_lpad]]
-
 // CHECK-LABEL: define internal void @"\01?fin$0@0@nested___except___finally@@"(i8 %abnormal_termination, i8* %frame_pointer)
 // CHECK: call void @g()
 // CHECK: unreachable
 
 int nested___except___except() {
   int myres = 0;
   __try {
     __try {

 }
 // The order of basic blocks in the below doesn't matter.
 // CHECK-LABEL: define i32 @nested___except___except()
 
 // CHECK-LABEL: invoke void @g()
 // CHECK-NEXT:       to label %[[g1_cont:.*]] unwind label %[[g1_lpad:.*]]
 
 // CHECK: [[g1_lpad]]
-// CHECK: catchpad [i8* null]
+// CHECK: catchpad {{.*}} [i8* null]
 // CHECK: catchret {{.*}} to label %[[except:[^ ]*]]
 // CHECK: [[except]]
 // CHECK: invoke void @g()
 // CHECK-NEXT:       to label %[[g2_cont:.*]] unwind label %[[g2_lpad:.*]]
 
 // CHECK: [[g2_lpad]]
-// CHECK: catchpad [i8* null]
+// CHECK: catchpad {{.*}} [i8* null]
 // CHECK: catchret
 // CHECK: br label %[[trycont4:[^ ]*]]
 
 // CHECK: [[trycont4]]
 // CHECK-NEXT: ret i32 1
 
 // CHECK: [[g2_cont]]
 // CHECK-NEXT: br label %[[tryleave:[^ ]*]]

 // CHECK: [[tryleave]]
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK-NEXT: call void @"\01?fin$0@0@nested___finally___except@@"(i8 0, i8* %[[fp]])
 // CHECK-NEXT: ret i32 1
 
 // CHECK: [[g2_lpad]]
 // CHECK: cleanuppad
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK-NEXT: invoke void @"\01?fin$0@0@nested___finally___except@@"(i8 1, i8* %[[fp]])
+// CHECK-NEXT: call void @"\01?fin$0@0@nested___finally___except@@"(i8 1, i8* %[[fp]])
 // CHECK: cleanupret {{.*}} unwind to caller
 
 // CHECK-LABEL: define internal void @"\01?fin$0@0@nested___finally___except@@"(i8 %abnormal_termination, i8* %frame_pointer)
 // CHECK: ret void
 
 int nested___finally___finally() {
   int myres = 0;
   __try {

 
 // CHECK: [[finally_cont]]
 // CHECK: store i32 51, i32* %[[myres]]
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK-NEXT: call void @"\01?fin$0@0@nested___finally___finally@@"(i8 0, i8* %[[fp]])
 // CHECK-NEXT: ret i32 1
 
 // CHECK: [[g1_lpad]]
-// CHECK-NEXT: %[[padtoken:[^ ]*]] = cleanuppad []
+// CHECK-NEXT: %[[padtoken:[^ ]*]] = cleanuppad within none []
 // CHECK-NEXT: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK-NEXT: invoke void @"\01?fin$1@0@nested___finally___finally@@"(i8 1, i8* %[[fp]])
-// CHECK-NEXT:       to label %[[finally_cont2:.*]] unwind label %[[endcleanup:[^ ]*]]
+// CHECK-NEXT:       to label %[[finally_cont2:.*]] unwind label %[[g2_lpad]]
 // CHECK: [[finally_cont2]]
-// CHECK: cleanupret %[[padtoken]] unwind label %[[g2_lpad]]
-
-// CHECK: [[endcleanup]]
-// CHECK-NEXT: cleanupendpad %[[padtoken]] unwind label %[[g2_lpad]]
+// CHECK: cleanupret from %[[padtoken]] unwind label %[[g2_lpad]]
 
 // CHECK: [[g2_lpad]]
-// CHECK-NEXT: %[[padtoken:[^ ]*]] = cleanuppad []
+// CHECK-NEXT: %[[padtoken:[^ ]*]] = cleanuppad within none []
 // CHECK-NEXT: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK-NEXT: invoke void @"\01?fin$0@0@nested___finally___finally@@"(i8 1, i8* %[[fp]])
-// CHECK: cleanupret %[[padtoken]] unwind to caller
+// CHECK-NEXT: call void @"\01?fin$0@0@nested___finally___finally@@"(i8 1, i8* %[[fp]])
+// CHECK: cleanupret from %[[padtoken]] unwind to caller
 
 // CHECK-LABEL: define internal void @"\01?fin$0@0@nested___finally___finally@@"(i8 %abnormal_termination, i8* %frame_pointer)
 // CHECK: ret void
 
 // CHECK-LABEL: define internal void @"\01?fin$1@0@nested___finally___finally@@"(i8 %abnormal_termination, i8* %frame_pointer)
 // CHECK: call void @g()
 // CHECK: unreachable

test/CodeGen/exceptions-seh.c

 
 // CHECK-LABEL: define i32 @safe_div(i32 %numerator, i32 %denominator, i32* %res)
 // X64-SAME:      personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
 // X86-SAME:      personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
 // CHECK: invoke void @try_body(i32 %{{.*}}, i32 %{{.*}}, i32* %{{.*}}) #[[NOINLINE:[0-9]+]]
 // CHECK:       to label %{{.*}} unwind label %[[catchpad:[^ ]*]]
 //
 // CHECK: [[catchpad]]
-// X64: %[[padtoken:[^ ]*]] = catchpad [i8* null]
-// X86: %[[padtoken:[^ ]*]] = catchpad [i8* bitcast (i32 ()* @"\01?filt$0@0@safe_div@@" to i8*)]
-// CHECK-NEXT:    to label %[[exceptret:[^ ]*]] unwind label
-//
-// CHECK: [[exceptret]]
-// CHECK: catchret %[[padtoken]] to label %[[except:[^ ]*]]
+// X64: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [i8* null]
+// X86: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [i8* bitcast (i32 ()* @"\01?filt$0@0@safe_div@@" to i8*)]
+// CHECK-NEXT: catchret from %[[padtoken]] to label %[[except:[^ ]*]]
 //
 // CHECK: [[except]]
 // CHECK: store i32 -42, i32* %[[success:[^ ]*]]
 //
 // CHECK: %[[res:[^ ]*]] = load i32, i32* %[[success]]
 // CHECK: ret i32 %[[res]]
 
 // 32-bit SEH needs this filter to save the exception code.

 // CHECK-LABEL: define i32 @filter_expr_capture()
 // X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
 // X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
 // X64: call void (...) @llvm.localescape(i32* %[[r:[^ ,]*]])
 // X86: call void (...) @llvm.localescape(i32* %[[r:[^ ,]*]], i32* %[[code:[^ ,]*]])
 // CHECK: store i32 42, i32* %[[r]]
 // CHECK: invoke void @j() #[[NOINLINE]]
 //
-// CHECK: catchpad [i8* bitcast (i32 ({{.*}})* @"\01?filt$0@0@filter_expr_capture@@" to i8*)]
+// CHECK: catchpad within %{{[^ ]*}} [i8* bitcast (i32 ({{.*}})* @"\01?filt$0@0@filter_expr_capture@@" to i8*)]
 // CHECK: store i32 13, i32* %[[r]]
 //
 // CHECK: %[[rv:[^ ]*]] = load i32, i32* %[[r]]
 // CHECK: ret i32 %[[rv]]
 
 // X64-LABEL: define internal i32 @"\01?filt$0@0@filter_expr_capture@@"(i8* %exception_pointers, i8* %frame_pointer)
 // X64: call i8* @llvm.localrecover(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %frame_pointer, i32 0)
 //
int nested_try(void) {
   }
   return r;
 }
 // CHECK-LABEL: define i32 @nested_try()
 // X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
 // X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
 // CHECK: store i32 42, i32* %[[r:[^ ,]*]]
 // CHECK: invoke void @j() #[[NOINLINE]]
-// CHECK:       to label %[[cont:[^ ]*]] unwind label %[[cpad_inner:[^ ]*]]
-//
-// CHECK: [[cpad_inner]]
-// CHECK: catchpad [i8* bitcast (i32 ({{.*}})* @"\01?filt$1@0@nested_try@@" to i8*)]
-// CHECK-NEXT: to label %[[exceptret_inner:[^ ]*]] unwind label %[[cpad_outer:[^ ]*]]
+// CHECK:       to label %[[cont:[^ ]*]] unwind label %[[cswitch_inner:[^ ]*]]
 //
-// CHECK: [[exceptret_inner]]
-// CHECK: catchret {{.*}} to label %[[except_inner:[^ ]*]]
+// CHECK: [[cswitch_inner]]
+// CHECK: %[[cs_inner:[^ ]*]] = catchswitch within none [label %[[cpad_inner:[^ ]*]]] unwind label %[[cswitch_outer:[^ ]*]]
 //
-// CHECK: [[except_inner]]
-// CHECK: store i32 123, i32* %[[r]]
-// CHECK: br label %[[inner_try_cont:[^ ]*]]
-//
-// CHECK: [[inner_try_cont]]
-// CHECK: br label %[[outer_try_cont:[^ ]*]]
+// CHECK: [[cswitch_outer]]
+// CHECK: %[[cs_outer:[^ ]*]] = catchswitch within none [label %[[cpad_outer:[^ ]*]]] unwind to caller
 //
 // CHECK: [[cpad_outer]]
-// CHECK: catchpad [i8* bitcast (i32 ({{.*}})* @"\01?filt$0@0@nested_try@@" to i8*)]
-// CHECK-NEXT: to label %[[exceptret_outer:[^ ]*]] unwind label
-//
-// CHECK: [[exceptret_outer]]
-// CHECK: catchret {{.*}} to label %[[except_outer:[^ ]*]]
+// CHECK: catchpad within %{{[^ ]*}} [i8* bitcast (i32 ({{.*}})* @"\01?filt$0@0@nested_try@@" to i8*)]
+// CHECK-NEXT: catchret {{.*}} to label %[[except_outer:[^ ]*]]
 //
 // CHECK: [[except_outer]]
 // CHECK: store i32 456, i32* %[[r]]
-// CHECK: br label %[[outer_try_cont]]
+// CHECK: br label %[[outer_try_cont:[^ ]*]]
 //
 // CHECK: [[outer_try_cont]]
 // CHECK: %[[r_load:[^ ]*]] = load i32, i32* %[[r]]
 // CHECK: ret i32 %[[r_load]]
 //
+// CHECK: [[cpad_inner]]
+// CHECK: catchpad within %[[cs_inner]] [i8* bitcast (i32 ({{.*}})* @"\01?filt$1@0@nested_try@@" to i8*)]
+// CHECK-NEXT: catchret {{.*}} to label %[[except_inner:[^ ]*]]
+//
+// CHECK: [[except_inner]]
+// CHECK: store i32 123, i32* %[[r]]
+// CHECK: br label %[[inner_try_cont:[^ ]*]]
+//
+// CHECK: [[inner_try_cont]]
+// CHECK: br label %[[outer_try_cont]]
+//
 // CHECK: [[cont]]
 // CHECK: store i32 0, i32* %[[r]]
 // CHECK: br label %[[inner_try_cont]]
 //
 // CHECK-LABEL: define internal i32 @"\01?filt$0@0@nested_try@@"({{.*}})
 // X86: call i8* @llvm.x86.seh.recoverfp({{.*}})
 // CHECK: load i32*, i32**
 // CHECK: load i32, i32*

 //
 // CHECK: [[cont]]
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK: call void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 0, i8* %[[fp]])
 // CHECK: load i32, i32* %[[g_addr]], align 4
 // CHECK: ret i32
 //
 // CHECK: [[cleanuppad]]
-// CHECK: %[[padtoken:[^ ]*]] = cleanuppad []
+// CHECK: %[[padtoken:[^ ]*]] = cleanuppad within none []
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK: invoke void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
-// CHECK:     to label %[[cleanupcont:[^ ]*]] unwind label %[[cleanupend:[^ ]*]]
-// CHECK: [[cleanupcont]]
-// CHECK: cleanupret %[[padtoken]] unwind to caller
-// CHECK: [[cleanupend]]
-// CHECK: cleanupendpad %[[padtoken]] unwind to caller
+// CHECK: call void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
+// CHECK: cleanupret from %[[padtoken]] unwind to caller
 
 // CHECK: define internal void @"\01?fin$0@0@basic_finally@@"({{i8( zeroext)?}} %abnormal_termination, i8* %frame_pointer)
 // CHECK:   call i8* @llvm.localrecover(i8* bitcast (i32 (i32)* @basic_finally to i8*), i8* %frame_pointer, i32 0)
 // CHECK:   load i32, i32* %{{.*}}, align 4
 // CHECK:   add nsw i32 %{{.*}}, 1
 // CHECK:   store i32 %{{.*}}, i32* %{{.*}}, align 4
 // CHECK:   ret void
 
int exception_code_in_except(void) {
   }
 }
 
 // CHECK-LABEL: define i32 @exception_code_in_except()
 // CHECK: %[[ret_slot:[^ ]*]] = alloca i32
 // CHECK: %[[code_slot:[^ ]*]] = alloca i32
 // CHECK: invoke void @try_body(i32 0, i32 0, i32* null)
 // CHECK: %[[pad:[^ ]*]] = catchpad
-// CHECK: catchret %[[pad]]
+// CHECK: catchret from %[[pad]]
 // X64: %[[code:[^ ]*]] = call i32 @llvm.eh.exceptioncode(token %[[pad]])
 // X64: store i32 %[[code]], i32* %[[code_slot]]
 // CHECK: %[[ret1:[^ ]*]] = load i32, i32* %[[code_slot]]
 // CHECK: store i32 %[[ret1]], i32* %[[ret_slot]]
 // CHECK: %[[ret2:[^ ]*]] = load i32, i32* %[[ret_slot]]
 // CHECK: ret i32 %[[ret2]]
 
 // CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }

test/CodeGenCXX/exceptions-cxx-new.cpp

 // RUN: %clang_cc1 %s -triple i686-pc-win32 -fms-extensions -fexceptions -fcxx-exceptions -fnew-ms-eh -emit-llvm -o - -std=c++11 | FileCheck %s
 
 int f(int);
 
 void test_catch() {
   try {
     f(1);
   } catch (int) {
     f(2);
   } catch (double) {
     f(3);
   }
 }
 
 // CHECK-LABEL: define void @"\01?test_catch@@YAXXZ"(
 // CHECK:   invoke i32 @"\01?f@@YAHH@Z"(i32 1)
-// CHECK:         to label %[[NORMAL:.*]] unwind label %[[CATCH_INT:.*]]
+// CHECK:         to label %[[NORMAL:.*]] unwind label %[[CATCHSWITCH:.*]]
 
-// CHECK: [[CATCH_INT]]
-// CHECK:   %[[CATCHPAD_INT:.*]] = catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
-// CHECK:         to label %[[CATCH_INT_HANDLER:.*]] unwind label %[[CATCH_DOUBLE:.*]]
-
-// CHECK: [[CATCH_INT_HANDLER]]
-// CHECK:   invoke i32 @"\01?f@@YAHH@Z"(i32 2)
-// CHECK:           to label %[[CATCH_INT_DONE:.*]] unwind label %[[CATCHENDPAD:.*]]
+// CHECK: [[CATCHSWITCH]]
+// CHECK:   %[[CATCHSWITCHPAD:.*]] = catchswitch within none [label %[[CATCH_INT:.*]], label %[[CATCH_DOUBLE:.*]]] unwind to caller
 
-// CHECK: [[CATCH_INT_DONE]]
-// CHECK:   catchret %[[CATCHPAD_INT]] to label %[[LEAVE_INT_CATCH:.*]]
+// CHECK: [[CATCH_INT]]
+// CHECK:   %[[CATCHPAD_INT:.*]] = catchpad within %[[CATCHSWITCHPAD]] [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
+// CHECK:   call i32 @"\01?f@@YAHH@Z"(i32 2)
+// CHECK:   catchret from %[[CATCHPAD_INT]] to label %[[LEAVE_INT_CATCH:.*]]
 
 // CHECK: [[LEAVE_INT_CATCH]]
 // CHECK:   br label %[[LEAVE_FUNC:.*]]
 
 // CHECK: [[LEAVE_FUNC]]
 // CHECK:   ret void
 
 // CHECK: [[CATCH_DOUBLE]]
-// CHECK:   %[[CATCHPAD_DOUBLE:.*]] = catchpad [%rtti.TypeDescriptor2* @"\01??_R0N@8", i32 0, i8* null]
-// CHECK:           to label %[[CATCH_DOUBLE_HANDLER:.*]] unwind label %[[CATCHENDPAD]]
-
-// CHECK: [[CATCH_DOUBLE_HANDLER]]
-// CHECK:   invoke i32 @"\01?f@@YAHH@Z"(i32 3)
-// CHECK:           to label %[[CATCH_DOUBLE_DONE:.*]] unwind label %[[CATCHENDPAD]]
-
-// CHECK: [[CATCH_DOUBLE_DONE]]
-// CHECK:   catchret %[[CATCHPAD_DOUBLE]] to label %[[LEAVE_DOUBLE_CATCH:.*]]
+// CHECK:   %[[CATCHPAD_DOUBLE:.*]] = catchpad within %[[CATCHSWITCHPAD]] [%rtti.TypeDescriptor2* @"\01??_R0N@8", i32 0, i8* null]
+// CHECK:   call i32 @"\01?f@@YAHH@Z"(i32 3)
+// CHECK:   catchret from %[[CATCHPAD_DOUBLE]] to label %[[LEAVE_DOUBLE_CATCH:.*]]
 
 // CHECK: [[LEAVE_DOUBLE_CATCH]]
 // CHECK:   br label %[[LEAVE_FUNC]]
 
-// CHECK: [[CATCHENDPAD]]
-// CHECK:   catchendpad unwind to caller
-
 // CHECK: [[NORMAL]]
 // CHECK:   br label %[[LEAVE_FUNC]]
 
 struct Cleanup {
   ~Cleanup() { f(-1); }
 };
 
 void test_cleanup() {
   Cleanup C;
   f(1);
 }
 
 // CHECK-LABEL: define {{.*}} @"\01?test_cleanup@@YAXXZ"(
 // CHECK:   invoke i32 @"\01?f@@YAHH@Z"(i32 1)
 // CHECK:           to label %[[LEAVE_FUNC:.*]] unwind label %[[CLEANUP:.*]]
 
 // CHECK: [[LEAVE_FUNC]]
 // CHECK:   call x86_thiscallcc void @"\01??_DCleanup@@QAE@XZ"(
 // CHECK:   ret void
 
 // CHECK: [[CLEANUP]]
-// CHECK:   %[[CLEANUPPAD:.*]] = cleanuppad []
+// CHECK:   %[[CLEANUPPAD:.*]] = cleanuppad within none []
 // CHECK:   call x86_thiscallcc void @"\01??_DCleanup@@QAE@XZ"(
-// CHECK:   cleanupret %[[CLEANUPPAD]] unwind to caller
+// CHECK:   cleanupret from %[[CLEANUPPAD]] unwind to caller
 
 
 // CHECK-LABEL: define {{.*}} void @"\01??1Cleanup@@QAE@XZ"(
 // CHECK:   invoke i32 @"\01?f@@YAHH@Z"(i32 -1)
 // CHECK:           to label %[[LEAVE_FUNC:.*]] unwind label %[[TERMINATE:.*]]
 
 // CHECK: [[LEAVE_FUNC]]
 // CHECK:   ret void
 
 // CHECK: [[TERMINATE]]
-// CHECK:   terminatepad [void ()* @"\01?terminate@@YAXXZ"] unwind to caller
+// CHECK:   terminatepad within none [void ()* @"\01?terminate@@YAXXZ"] unwind to caller
 

test/CodeGenCXX/exceptions-seh.cpp

 // Make sure we use __C_specific_handler for SEH.
 
 // CHECK-LABEL: define void @use_seh()
 // CHECK-SAME:  personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
 // CHECK: invoke void @might_throw() #[[NOINLINE:[0-9]+]]
 // CHECK:       to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
 //
 // CHECK: [[lpad]]
-// CHECK-NEXT: catchpad
+// CHECK-NEXT: %[[switch:.*]] = catchswitch within none [label %[[cpad:.*]]] unwind to caller
+//
+// CHECK: [[cpad]]
+// CHECK-NEXT: catchpad within %[[switch]]
 // CHECK: catchret {{.*}} label %[[except:[^ ]*]]
 //
 // CHECK: [[except]]
 // CHECK: br label %[[ret:[^ ]*]]
 //
 // CHECK: [[ret]]
 // CHECK: ret void
 //

 void use_inline() {
   use_seh_in_inline_func();
 }
 
 // CHECK-LABEL: define linkonce_odr void @use_seh_in_inline_func() #{{[0-9]+}} comdat
 // CHECK-SAME:  personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
 // CHECK: invoke void @might_throw()
 //
-// CHECK: catchpad [i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@use_seh_in_inline_func@@" to i8*)]
+// CHECK: catchpad {{.*}} [i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@use_seh_in_inline_func@@" to i8*)]
 //
 // CHECK: invoke void @might_throw()
 //
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
 // CHECK: call void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 0, i8* %[[fp]])
 // CHECK: ret void
 //
 // CHECK: cleanuppad
 // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
-// CHECK: invoke void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 1, i8* %[[fp]])
+// CHECK: call void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 1, i8* %[[fp]])
 
 // CHECK-LABEL: define internal i32 @"\01?filt$0@0@use_seh_in_inline_func@@"(i8* %exception_pointers, i8* %frame_pointer) #{{[0-9]+}} comdat($use_seh_in_inline_func)
 // CHECK: icmp eq i32 %{{.*}}, 424242
 // CHECK: zext i1 %{{.*}} to i32
 // CHECK: ret i32
 
 // CHECK-LABEL: define internal void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 %abnormal_termination, i8* %frame_pointer) #{{[0-9]+}} comdat($use_seh_in_inline_func)
 // CHECK: store i32 1234, i32* @my_unique_global
 
 // CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }

test/CodeGenCXX/microsoft-abi-arg-order.cpp

 // X86: invoke x86_thiscallcc %struct.A* @"\01??0A@@QAE@H@Z"(%struct.A* %[[arg2]], i32 2)
 // X86: %[[arg1:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 0
 // X86: invoke x86_thiscallcc %struct.A* @"\01??0A@@QAE@H@Z"(%struct.A* %[[arg1]], i32 1)
 // X86: call void @"\01?foo@@YAXUA@@00@Z"([[argmem_ty]]* inalloca %[[argmem]])
 // X86: call void @llvm.stackrestore
 // X86: ret void
 //
 //   lpad2:
-// X86: cleanuppad []
+// X86: cleanuppad within none []
 // X86: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %[[arg2]])
 // X86: cleanupret
 //
 //   ehcleanup:
 // X86: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %[[arg3]])
 
 // X64-LABEL: define void @"\01?call_foo@@YAXXZ"()
 // X64: call %struct.A* @"\01??0A@@QEAA@H@Z"(%struct.A* %[[arg3:[^,]*]], i32 3)
 // X64: invoke %struct.A* @"\01??0A@@QEAA@H@Z"(%struct.A* %[[arg2:[^,]*]], i32 2)
 // X64: invoke %struct.A* @"\01??0A@@QEAA@H@Z"(%struct.A* %[[arg1:[^,]*]], i32 1)
 // X64: call void @"\01?foo@@YAXUA@@00@Z"
 // X64:       (%struct.A* %[[arg1]], %struct.A* %[[arg2]], %struct.A* %[[arg3]])
 // X64: ret void
 //
 //   lpad2:
-// X64: cleanuppad []
+// X64: cleanuppad within none []
 // X64: call void @"\01??1A@@QEAA@XZ"(%struct.A* %[[arg2]])
 // X64: cleanupret
 //
 //   ehcleanup:
 // X64: call void @"\01??1A@@QEAA@XZ"(%struct.A* %[[arg3]])

test/CodeGenCXX/microsoft-abi-eh-catch.cpp

try {
     might_throw();
   } catch (...) {
     recover();
   }
 }
 
 // WIN64-LABEL: define void @catch_all()
 // WIN64: invoke void @might_throw()
-// WIN64-NEXT: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
+// WIN64-NEXT: to label %[[cont:[^ ]*]] unwind label %[[catchswitch_lpad:[^ ]*]]
 //
-// WIN64: [[lpad]]
-// WIN64: catchpad [i8* null, i32 64, i8* null]
-// WIN64:     to label %[[catchit:[^ ]*]] unwind label %{{.*}}
+// WIN64: [[catchswitch_lpad]]
+// WIN64: %[[catchswitch:[^ ]*]] = catchswitch within none [label %[[catchpad_lpad:[^ ]*]]] unwind to caller
 //
-// WIN64: [[catchit]]
+// WIN64: [[catchpad_lpad]]
+// WIN64: catchpad within %[[catchswitch]] [i8* null, i32 64, i8* null]
 // WIN64: call void @recover()
-// WIN64: catchret %{{.*}} to label %[[catchret:[^ ]*]]
+// WIN64: catchret from %{{.*}} to label %[[catchret:[^ ]*]]
 //
 // WIN64: [[catchret]]
 // WIN64-NEXT: br label %[[ret:[^ ]*]]
 //
 // WIN64: [[ret]]
 // WIN64: ret void
 //
 // WIN64: [[cont]]
 // WIN64: br label %[[ret]]
 
 extern "C" void catch_int() {
   try {
     might_throw();
   } catch (int e) {
     handle_exception(&e);
   }
 }
 
 // WIN64-LABEL: define void @catch_int()
-// WIN64: catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i32* %[[e_addr:[^\]]*]]]
+// WIN64: catchpad within %{{[^ ]*}} [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i32* %[[e_addr:[^\]]*]]]
 //
 // The catchpad instruction starts the lifetime of 'e'. Unfortunately, that
 // leaves us with nowhere to put lifetime.start, so we don't emit lifetime
 // markers for now.
 // WIN64-NOT: lifetime.start
 //
 // WIN64: %[[e_i8:[^ ]*]] = bitcast i32* %[[e_addr]] to i8*
 // WIN64-NOT: lifetime.start
 // WIN64: call void @handle_exception
 // WIN64-SAME: (i8* %[[e_i8]])
 // WIN64-NOT: lifetime.end
 // WIN64: catchret
 
 extern "C" void catch_int_unnamed() {
   try {
     might_throw();
   } catch (int) {
   }
 }
 
 // WIN64-LABEL: define void @catch_int_unnamed()
-// WIN64: catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
+// WIN64: catchpad within %{{.*}} [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
 // WIN64: catchret
 
 struct A {
   A();
   A(const A &o);
   ~A();
   int a;
 };
try {
     might_throw();
   } catch (A e) {
     handle_exception(&e);
   }
 }
 
 // WIN64-LABEL: define void @catch_a_byval()
 // WIN64: %[[e_addr:[^ ]*]] = alloca %struct.A
-// WIN64: catchpad [%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8", i32 0, %struct.A* %[[e_addr]]]
+// WIN64: catchpad within %{{[^ ]*}} [%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8", i32 0, %struct.A* %[[e_addr]]]
 // WIN64: %[[e_i8:[^ ]*]] = bitcast %struct.A* %[[e_addr]] to i8*
 // WIN64: call void @handle_exception(i8* %[[e_i8]])
 // WIN64: catchret
 
 extern "C" void catch_a_ref() {
   try {
     might_throw();
   } catch (A &e) {
     handle_exception(&e);
   }
 }
 
 // WIN64-LABEL: define void @catch_a_ref()
 // WIN64: %[[e_addr:[^ ]*]] = alloca %struct.A*
-// WIN64: catchpad [%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8", i32 8, %struct.A** %[[e_addr]]]
+// WIN64: catchpad within %{{[^ ]*}} [%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8", i32 8, %struct.A** %[[e_addr]]]
 // WIN64: %[[eptr:[^ ]*]] = load %struct.A*, %struct.A** %[[e_addr]]
 // WIN64: %[[eptr_i8:[^ ]*]] = bitcast %struct.A* %[[eptr]] to i8*
 // WIN64: call void @handle_exception(i8* %[[eptr_i8]])
 // WIN64: catchret
 
 extern "C" void fn_with_exc_spec() throw(int) {
   might_throw();
 }
try {
     } catch (int) {
       might_throw();
     }
   }
 }
 
 // WIN64-LABEL: define void @catch_nested()
 // WIN64: invoke void @might_throw()
-// WIN64-NEXT: to label %{{.*}} unwind label %[[lp1:[^ ]*]]
+// WIN64-NEXT: to label %{{.*}} unwind label %[[catchswitch_outer:[^ ]*]]
 //
-// WIN64: [[lp1]]
-// WIN64: catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
-// WIN64:     to label %[[catchit:[^ ]*]] unwind label %{{.*}}
+// WIN64: [[catchswitch_outer]]
+// WIN64: %[[catchswitch_outer_scope:[^ ]*]] = catchswitch within none [label %[[catch_int_outer:[^ ]*]]] unwind to caller
 //
-// WIN64: [[catchit]]
+// WIN64: [[catch_int_outer]]
+// WIN64: %[[catchpad:[^ ]*]] = catchpad within %[[catchswitch_outer_scope]] [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
 // WIN64: invoke void @might_throw()
-// WIN64-NEXT: to label %[[cont2:[^ ]*]] unwind label %[[lp2:[^ ]*]]
+// WIN64-NEXT: to label %[[cont2:[^ ]*]] unwind label %[[catchswitch_inner:[^ ]*]]
 //
-// WIN64: [[lp2]]
-// WIN64: catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
-// WIN64:     to label %[[catchit2:[^ ]*]] unwind label %[[endcatch2:[^ ]*]]
+// WIN64: [[catchswitch_inner]]
+// WIN64: %[[catchswitch_inner_scope:[^ ]*]] = catchswitch within %[[catchpad]] [label %[[catch_int_inner:[^ ]*]]] unwind to caller
 //
-// WIN64: [[catchit2]]
-// WIN64-NEXT: invoke void @might_throw()
-// WIN64-NEXT:    to label %[[catchret1:[^ ]*]] unwind label %[[endcatch2]]
-//
-// WIN64: [[catchret1]]
+// WIN64: [[catch_int_inner]]
+// WIN64: catchpad within %[[catchswitch_inner_scope]] [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
+// WIN64-NEXT: call void @might_throw()
 // WIN64: catchret {{.*}} to label %[[catchret2:[^ ]*]]
 //
 // WIN64: [[catchret2]]
 // WIN64: catchret {{.*}} to label %[[mainret:[^ ]*]]
 //
 // WIN64: [[mainret]]
 // WIN64: ret void
-//
-// WIN64: [[endcatch2]]
-// WIN64: catchendpad unwind label %{{.*}}

test/CodeGenCXX/microsoft-abi-eh-cleanups.cpp

 // WIN32:   invoke void @"\01?getA@@YA?AUA@@XZ"(%struct.A* sret %{{.*}})
 //    If this call throws, we have to cleanup the stacksave.
 // WIN32:   call i32 @"\01?TakesTwo@@YAHUA@@0@Z"
 // WIN32:   call void @llvm.stackrestore
 // WIN32:   ret void
 //
 //    There should be one dtor call for unwinding from the second getA.
 // WIN32:   cleanuppad
-// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}}) #[[noinline:[0-9]+]]
+// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32-NOT: @"\01??1A@@QAE@XZ"
 // WIN32: }
 
 void TakeRef(const A &a);
 int HasDeactivatedCleanups() {
   return TakesTwo((TakeRef(A()), A()), (TakeRef(A()), A()));
 }
 

 //        Destroy the two const ref temporaries.
 // WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32:   ret i32
 //
 //        Conditionally destroy arg1.
 // WIN32:   %[[cond:.*]] = load i1, i1* %[[isactive]]
 // WIN32:   br i1 %[[cond]]
-// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %[[arg1]]) #[[noinline]]
+// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %[[arg1]])
 // WIN32: }
 
 // Test putting the cleanups inside a conditional.
 int CouldThrow();
 int HasConditionalCleanup(bool cond) {
   return (cond ? TakesTwo(A(), A()) : CouldThrow());
 }
 
 // WIN32-LABEL: define i32 @"\01?HasConditionalCleanup@@YAH_N@Z"(i1 zeroext %{{.*}}) {{.*}} {
 // WIN32:   store i1 false
 // WIN32:   br i1
 // WIN32:   call i8* @llvm.stacksave()
 // WIN32:   call x86_thiscallcc %struct.A* @"\01??0A@@QAE@XZ"(%struct.A* %{{.*}})
 // WIN32:   store i1 true
 // WIN32:   invoke x86_thiscallcc %struct.A* @"\01??0A@@QAE@XZ"(%struct.A* %{{.*}})
 // WIN32:   call i32 @"\01?TakesTwo@@YAHUA@@0@Z"
 //
 // WIN32:   call void @llvm.stackrestore
 //
 // WIN32:   call i32 @"\01?CouldThrow@@YAHXZ"()
 //
 //        Only one dtor in the invoke for arg1
-// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}}) #[[noinline]]
+// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32-NOT: invoke x86_thiscallcc void @"\01??1A@@QAE@XZ"
 // WIN32: }
 
 // Now test both.
 int HasConditionalDeactivatedCleanups(bool cond) {
   return (cond ? TakesTwo((TakeRef(A()), A()), (TakeRef(A()), A())) : CouldThrow());
 }
 

 //        Two normal cleanups for TakeRef args.
 // WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32-NOT:   invoke x86_thiscallcc void @"\01??1A@@QAE@XZ"
 // WIN32:   ret i32
 //
 //        Somewhere in the landing pad soup, we conditionally destroy arg1.
 // WIN32:   %[[isactive:.*]] = load i1, i1* %[[arg1_cond]]
 // WIN32:   br i1 %[[isactive]]
-// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}}) #[[noinline]]
+// WIN32:   call x86_thiscallcc void @"\01??1A@@QAE@XZ"({{.*}})
 // WIN32: }
 
 namespace crash_on_partial_destroy {
 struct A {
   virtual ~A();
 };
 
 struct B : virtual A {

 // WIN32:      call x86_thiscallcc void @"\01??1B@crash_on_partial_destroy@@UAE@XZ"
 //
 // WIN32-NOT:  load
 // WIN32:      bitcast %"struct.crash_on_partial_destroy::C"* %{{.*}} to i8*
 // WIN32-NOT:  load
 // WIN32:      getelementptr inbounds i8, i8* %{{.*}}, i32 4
 // WIN32-NOT:  load
 // WIN32:      bitcast i8* %{{.*}} to %"struct.crash_on_partial_destroy::A"*
-// WIN32:      call x86_thiscallcc void @"\01??1A@crash_on_partial_destroy@@UAE@XZ"({{.*}}) #[[noinline]]
+// WIN32:      call x86_thiscallcc void @"\01??1A@crash_on_partial_destroy@@UAE@XZ"({{.*}})
 // WIN32: }
 }
 
 namespace dont_call_terminate {
 struct C {
   ~C();
 };
 void g();
 void f() {
   C c;
   g();
 }
 
 // WIN32-LABEL: define void @"\01?f@dont_call_terminate@@YAXXZ"()
 // WIN32: invoke void @"\01?g@dont_call_terminate@@YAXXZ"()
 // WIN32-NEXT: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
 //
 // WIN32: [[cont]]
 // WIN32: call x86_thiscallcc void @"\01??1C@dont_call_terminate@@QAE@XZ"({{.*}})
 //
 // WIN32: [[lpad]]
 // WIN32-NEXT: cleanuppad
-// WIN32: call x86_thiscallcc void @"\01??1C@dont_call_terminate@@QAE@XZ"({{.*}}) #[[noinline]]
+// WIN32: call x86_thiscallcc void @"\01??1C@dont_call_terminate@@QAE@XZ"({{.*}})
 }
 
 namespace noexcept_false_dtor {
 struct D {
   ~D() noexcept(false);
 };
 void f() {
   D d;
   CouldThrow();
 }
 }
 
 // WIN32-LABEL: define void @"\01?f@noexcept_false_dtor@@YAXXZ"()
 // WIN32: invoke i32 @"\01?CouldThrow@@YAHXZ"()
 // WIN32: call x86_thiscallcc void @"\01??1D@noexcept_false_dtor@@QAE@XZ"(%"struct.noexcept_false_dtor::D"* %{{.*}})
 // WIN32: cleanuppad
-// WIN32: invoke x86_thiscallcc void @"\01??1D@noexcept_false_dtor@@QAE@XZ"(%"struct.noexcept_false_dtor::D"* %{{.*}}) #[[invoke_noinline:[0-9]+]]
+// WIN32: call x86_thiscallcc void @"\01??1D@noexcept_false_dtor@@QAE@XZ"(%"struct.noexcept_false_dtor::D"* %{{.*}})
 // WIN32: cleanupret
-// WIN32: cleanupendpad
-
-// WIN32: attributes #[[noinline]] = { noinline nounwind }
-// WIN32: attributes #[[invoke_noinline]] = { noinline }

test/CodeGenCXX/microsoft-abi-eh-terminate.cpp

 // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-pc-windows-msvc -mconstructor-aliases -fexceptions -fcxx-exceptions -fms-compatibility-version=18.00 | FileCheck -check-prefix=MSVC2013 %s
 // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-pc-windows-msvc -mconstructor-aliases -fexceptions -fcxx-exceptions -fms-compatibility-version=19.00 | FileCheck -check-prefix=MSVC2015 %s
 
 void may_throw();
 void never_throws() noexcept(true) {
   may_throw();
 }
 
 // CHECK-LABEL: define void @"\01?never_throws@@YAXXZ"()
 // CHECK-SAME:          personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 // CHECK:      invoke void @"\01?may_throw@@YAXXZ"()
-// MSVC2013:      terminatepad [void ()* @"\01?terminate@@YAXXZ"]
-// MSVC2015:      terminatepad [void ()* @__std_terminate]
+// MSVC2013:      terminatepad within none [void ()* @"\01?terminate@@YAXXZ"]
+// MSVC2015:      terminatepad within none [void ()* @__std_terminate]
 // CHECK-NEXT: unreachable

test/CodeGenCXX/microsoft-abi-thread-safe-statics.cpp

 // CHECK:     [[invoke_cont]]:
 // CHECK-NEXT:  call i32 @__tlregdtor(void ()* @"\01??__Fs@?1??f@@YAAAUS@@XZ@YAXXZ")
 // CHECK-NEXT:  br label %[[init_end:.*]]
 
 // CHECK:     [[init_end]]:
 // CHECK-NEXT:  ret %struct.S* @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A"
 
 // CHECK:     [[lpad:.*]]:
-// CHECK-NEXT: cleanuppad []
+// CHECK-NEXT: cleanuppad within none []
 // CHECK:       %[[guard:.*]] = load i32, i32* @"\01??__J?1??f@@YAAAUS@@XZ@51"
 // CHECK-NEXT:  %[[mask:.*]] = and i32 %[[guard]], -2
 // CHECK-NEXT:  store i32 %[[mask]], i32* @"\01??__J?1??f@@YAAAUS@@XZ@51"
 // CHECK-NEXT:  cleanupret {{.*}} unwind to caller
   return s;
 }
 
 

 // CHECK-NEXT:  call i32 @atexit(void ()* @"\01??__Fs@?1??g@@YAAAUS@@XZ@YAXXZ")
 // CHECK-NEXT:  call void @_Init_thread_footer(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ")
 // CHECK-NEXT:  br label %init.end
 //
 // CHECK:     [[init_end]]:
 // CHECK-NEXT:  ret %struct.S* @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A"
 //
 // CHECK:     [[lpad]]:
-// CHECK-NEXT: cleanuppad []
+// CHECK-NEXT: cleanuppad within none []
 // CHECK:       call void @_Init_thread_abort(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ")
 // CHECK-NEXT:  cleanupret {{.*}} unwind to caller
   return s;
 }
 
 extern inline S&h(bool b) {
   static thread_local S j;
   static S i;
   return b ? j : i;
 }

test/CodeGenCXX/microsoft-abi-try-throw.cpp

 
 int main() {
   int rv = 0;
 #ifdef TRY
   try {
     external(); // TRY: invoke void @"\01?external@@YAXXZ"
   } catch (int) {
     rv = 1;
-    // TRY: catchpad [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
+    // TRY: catchpad within %0 [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
     // TRY: catchret
   }
 #endif
 #ifdef THROW
   // THROW: store i32 42, i32* %[[mem_for_throw:.*]], align 4
   // THROW: %[[cast:.*]] = bitcast i32* %[[mem_for_throw]] to i8*
   // THROW: call void @_CxxThrowException(i8* %[[cast]], %eh.ThrowInfo* @_TI1H)
   throw int(42);
 #endif
   return rv;
 }
 
 #ifdef TRY
 // TRY-LABEL: define void @"\01?qual_catch@@YAXXZ"
 void qual_catch() {
   try {
     external();
   } catch (const int *) {
   }
-  // TRY: catchpad [%rtti.TypeDescriptor4* @"\01??_R0PAH@8", i32 1, i8* null]
+  // TRY: catchpad within %0 [%rtti.TypeDescriptor4* @"\01??_R0PAH@8", i32 1, i8* null]
   // TRY: catchret
 }
 #endif