Index: include/llvm/Analysis/TargetTransformInfoImpl.h
===================================================================
--- include/llvm/Analysis/TargetTransformInfoImpl.h
+++ include/llvm/Analysis/TargetTransformInfoImpl.h
@@ -805,15 +805,9 @@
       return static_cast<T *>(this)->getCallCost(F, Arguments);
     }
 
-    if (const CastInst *CI = dyn_cast<CastInst>(U)) {
-      // Result of a cmp instruction is often extended (to be used by other
-      // cmp instructions, logical or return instructions). These are usually
-      // nop on most sane targets.
-      if (isa<CmpInst>(CI->getOperand(0)))
-        return TTI::TCC_Free;
+    if (const CastInst *CI = dyn_cast<CastInst>(U))
       if (isa<SExtInst>(CI) || isa<ZExtInst>(CI) || isa<FPExtInst>(CI))
         return static_cast<T *>(this)->getExtCost(CI, Operands.back());
-    }
 
     return static_cast<T *>(this)->getOperationCost(
         Operator::getOpcode(U), U->getType(),