Index: lib/Transforms/InstCombine/InstructionCombining.cpp
===================================================================
--- lib/Transforms/InstCombine/InstructionCombining.cpp
+++ lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -3006,6 +3006,7 @@
         ++NumDeadInst;
         DEBUG(dbgs() << "IC: DCE: " << *Inst << '\n');
         Inst->eraseFromParent();
+        MadeIRChange = true;
         continue;
       }
 
@@ -3019,6 +3020,7 @@
           ++NumConstProp;
           if (isInstructionTriviallyDead(Inst, TLI))
             Inst->eraseFromParent();
+          MadeIRChange = true;
           continue;
         }
 
@@ -3142,7 +3144,7 @@
 
   // Lower dbg.declare intrinsics otherwise their value may be clobbered
   // by instcombiner.
-  bool DbgDeclaresChanged = LowerDbgDeclare(F);
+  bool MadeIRChange = LowerDbgDeclare(F);
 
   // Iterate while there is work to do.
   int Iteration = 0;
@@ -3151,18 +3153,19 @@
     DEBUG(dbgs() << "\n\nINSTCOMBINE ITERATION #" << Iteration << " on "
                  << F.getName() << "\n");
 
-    bool Changed = prepareICWorklistFromFunction(F, DL, &TLI, Worklist);
+    MadeIRChange |= prepareICWorklistFromFunction(F, DL, &TLI, Worklist);
 
     InstCombiner IC(Worklist, &Builder, F.optForMinSize(), ExpensiveCombines,
                     AA, AC, TLI, DT, DL, LI);
     IC.MaxArraySizeForCombine = MaxArraySize;
-    Changed |= IC.run();
 
-    if (!Changed)
+    if (!IC.run())
       break;
+
+    MadeIRChange = true;
   }
 
-  return DbgDeclaresChanged || Iteration > 1;
+  return MadeIRChange;
 }
 
 PreservedAnalyses InstCombinePass::run(Function &F,