diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
index 04117d3c059a..035c31e7de43 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -55,6 +55,9 @@ bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM,
 
   PM.add(createLowerConstantExpressionsPass());
 
+  // Make sure that no unreachable blocks are instruction selected.
+  PM.add(createUnreachableBlockEliminationPass());
+
   PM.add(createPPCSimpleInstructionSelector(*this));
 
   if (PrintMachineCode)
@@ -86,6 +89,9 @@ void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
 
   PM.add(createLowerConstantExpressionsPass());
 
+  // Make sure that no unreachable blocks are instruction selected.
+  PM.add(createUnreachableBlockEliminationPass());
+
   PM.add(createPPCSimpleInstructionSelector(TM));
   PM.add(createRegisterAllocator());
   PM.add(createPrologEpilogCodeInserter());