Index: include/llvm/Analysis/LibCallSemantics.h
===================================================================
--- include/llvm/Analysis/LibCallSemantics.h
+++ include/llvm/Analysis/LibCallSemantics.h
@@ -206,6 +206,18 @@
     llvm_unreachable("invalid enum");
   }
 
+  /// \brief Return true if this personality may be safely removed if there
+  /// are no landing pads in the current function.
+  inline bool isNoOpWithoutLpad(EHPersonality Pers) {
+    switch (Pers) {
+    case EHPersonality::Unknown:
+      return false;
+    // All known personalities currently have this behavior
+    default: return true;
+    }
+    llvm_unreachable("invalid enum");
+  }
+
   bool canSimplifyInvokeNoUnwind(const Function *F);
 
 } // end namespace llvm
Index: include/llvm/CodeGen/MachineModuleInfo.h
===================================================================
--- include/llvm/CodeGen/MachineModuleInfo.h
+++ include/llvm/CodeGen/MachineModuleInfo.h
@@ -320,6 +320,7 @@
   /// information.
   void addPersonality(MachineBasicBlock *LandingPad,
                       const Function *Personality);
+  void addPersonality(const Function *Personality);
 
   void addWinEHState(MachineBasicBlock *LandingPad, int State);
 
Index: lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
===================================================================
--- lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
+++ lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
@@ -89,10 +89,21 @@
 
 void DwarfCFIException::beginFunction(const MachineFunction *MF) {
   shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
+  const Function *F = MF->getFunction();
 
   // If any landing pads survive, we need an EH table.
   bool hasLandingPads = !MMI->getLandingPads().empty();
 
+  // Emit a personality function even when there are no landing pads
+  bool forceEmitPersonality =
+      // ...if a personality function is explicitly specified
+      F->hasPersonalityFn() &&
+      // ... and it's not known to be a noop in the absence of landing pads
+      !isNoOpWithoutLpad(classifyEHPersonality(F->getPersonalityFn())) &&
+      // ... and we're no explicitly asked not to emit it
+      (!F->hasFnAttribute(Attribute::NoUnwind) ||
+       F->hasFnAttribute(Attribute::UWTable));
+
   // See if we need frame move info.
   AsmPrinter::CFIMoveType MoveType = Asm->needsCFIMoves();
   if (MoveType == AsmPrinter::CFI_M_EH ||
@@ -104,10 +115,16 @@
 
   const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
   unsigned PerEncoding = TLOF.getPersonalityEncoding();
-  const Function *Per = MMI->getPersonality();
+  const Function *Per = F->hasPersonalityFn()
+                            ? dyn_cast<Function>(F->getPersonalityFn())
+                            : nullptr;
+  if (!Per)
+    Per = MMI->getPersonality();
 
-  shouldEmitPersonality = hasLandingPads &&
-    PerEncoding != dwarf::DW_EH_PE_omit && Per;
+  shouldEmitPersonality =
+      (forceEmitPersonality ||
+       (hasLandingPads && PerEncoding != dwarf::DW_EH_PE_omit)) &&
+      Per;
 
   unsigned LSDAEncoding = TLOF.getLSDAEncoding();
   shouldEmitLSDA = shouldEmitPersonality &&
@@ -123,6 +140,11 @@
   if (!shouldEmitPersonality)
     return;
 
+  // If we are forced to emit this personality, make sure to record
+  // it because it might not appear in any landingpad
+  if (forceEmitPersonality)
+    MMI->addPersonality(Per);
+
   const MCSymbol *Sym =
       TLOF.getCFIPersonalitySymbol(Per, *Asm->Mang, Asm->TM, MMI);
   Asm->OutStreamer->EmitCFIPersonality(Sym, PerEncoding);
Index: lib/CodeGen/AsmPrinter/EHStreamer.cpp
===================================================================
--- lib/CodeGen/AsmPrinter/EHStreamer.cpp
+++ lib/CodeGen/AsmPrinter/EHStreamer.cpp
@@ -309,7 +309,7 @@
   // If some instruction between the previous try-range and the end of the
   // function may throw, create a call-site entry with no landing pad for the
   // region following the try-range.
-  if (SawPotentiallyThrowing && !IsSJLJ) {
+  if (SawPotentiallyThrowing && !IsSJLJ && LastLabel != nullptr) {
     CallSiteEntry Site = { LastLabel, nullptr, nullptr, 0 };
     CallSites.push_back(Site);
   }
Index: lib/CodeGen/MachineModuleInfo.cpp
===================================================================
--- lib/CodeGen/MachineModuleInfo.cpp
+++ lib/CodeGen/MachineModuleInfo.cpp
@@ -320,7 +320,10 @@
                                        const Function *Personality) {
   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
   LP.Personality = Personality;
+  addPersonality(Personality);
+}
 
+void MachineModuleInfo::addPersonality(const Function *Personality) {
   for (unsigned i = 0; i < Personalities.size(); ++i)
     if (Personalities[i] == Personality)
       return;
Index: test/CodeGen/X86/eh-nolandingpads.ll
===================================================================
--- /dev/null
+++ test/CodeGen/X86/eh-nolandingpads.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s
+; Test that we emit functions with explicitly specified personality,
+; even if no landing pads are left.
+
+declare i32 @__my_personality_v0(...)
+declare void @might_throw()
+
+define i32 @foo() personality i32 (...)* @__my_personality_v0 {
+; CHECK: .cfi_personality 3, __my_personality_v0
+    call void @might_throw()
+    ret i32 0
+}