Index: lib/Transforms/InstCombine/InstCombineAddSub.cpp
===================================================================
--- lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -1431,11 +1431,11 @@
             Z2 = dyn_cast<Constant>(B2); B = B1;
         } else if (match(B1, m_AnyZero()) && match(A2, m_AnyZero())) {
             Z1 = dyn_cast<Constant>(B1); B = B2;
-            Z2 = dyn_cast<Constant>(A2); A = A1; 
+            Z2 = dyn_cast<Constant>(A2); A = A1;
         }
-        
-        if (Z1 && Z2 && 
-            (I.hasNoSignedZeros() || 
+
+        if (Z1 && Z2 &&
+            (I.hasNoSignedZeros() ||
              (Z1->isNegativeZeroValue() && Z2->isNegativeZeroValue()))) {
           return SelectInst::Create(C, A, B);
         }
@@ -1522,7 +1522,6 @@
   return Builder->CreateIntCast(Result, Ty, true);
 }
 
-
 Instruction *InstCombiner::visitSub(BinaryOperator &I) {
   Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
 
@@ -1595,21 +1594,22 @@
     // -(X >>u 31) -> (X >>s 31)
     // -(X >>s 31) -> (X >>u 31)
     if (C->isZero()) {
-      Value *X; ConstantInt *CI;
+      Value *X;
+      ConstantInt *CI;
       if (match(Op1, m_LShr(m_Value(X), m_ConstantInt(CI))) &&
           // Verify we are shifting out everything but the sign bit.
-          CI->getValue() == I.getType()->getPrimitiveSizeInBits()-1)
+              CI->getValue() == I.getType()->getPrimitiveSizeInBits() - 1)
         return BinaryOperator::CreateAShr(X, CI);
 
       if (match(Op1, m_AShr(m_Value(X), m_ConstantInt(CI))) &&
           // Verify we are shifting out everything but the sign bit.
-          CI->getValue() == I.getType()->getPrimitiveSizeInBits()-1)
+              CI->getValue() == I.getType()->getPrimitiveSizeInBits() - 1)
         return BinaryOperator::CreateLShr(X, CI);
     }
   }
 
-
-  { Value *Y;
+  {
+    Value *Y;
     // X-(X+Y) == -Y    X-(Y+X) == -Y
     if (match(Op1, m_Add(m_Specific(Op0), m_Value(Y))) ||
         match(Op1, m_Add(m_Value(Y), m_Specific(Op0))))
@@ -1627,15 +1627,15 @@
 
     // (X - (Y - Z))  -->  (X + (Z - Y)).
     if (match(Op1, m_Sub(m_Value(Y), m_Value(Z))))
-      return BinaryOperator::CreateAdd(Op0,
-                                      Builder->CreateSub(Z, Y, Op1->getName()));
+      return BinaryOperator::CreateAdd(
+          Op0, Builder->CreateSub(Z, Y, Op1->getName()));
 
     // (X - (X & Y))   -->   (X & ~Y)
     //
     if (match(Op1, m_And(m_Value(Y), m_Specific(Op0))) ||
         match(Op1, m_And(m_Specific(Op0), m_Value(Y))))
-      return BinaryOperator::CreateAnd(Op0,
-                                  Builder->CreateNot(Y, Y->getName() + ".not"));
+      return BinaryOperator::CreateAnd(
+          Op0, Builder->CreateNot(Y, Y->getName() + ".not"));
 
     // 0 - (X sdiv C)  -> (X sdiv -C)  provided the negation doesn't overflow.
     if (match(Op1, m_SDiv(m_Value(X), m_Constant(C))) && match(Op0, m_Zero()) &&
@@ -1677,7 +1677,7 @@
         match(Op1, m_Trunc(m_PtrToInt(m_Value(RHSOp)))))
       if (Value *Res = OptimizePointerDifference(LHSOp, RHSOp, I.getType()))
         return ReplaceInstUsesWith(I, Res);
-      }
+  }
 
   bool Changed = false;
   if (!I.hasNoSignedWrap() && WillNotOverflowSignedSub(Op0, Op1, &I)) {
@@ -1698,8 +1698,8 @@
   if (Value *V = SimplifyVectorOp(I))
     return ReplaceInstUsesWith(I, V);
 
-  if (Value *V = SimplifyFSubInst(Op0, Op1, I.getFastMathFlags(), DL,
-                                  TLI, DT, AT))
+  if (Value *V =
+          SimplifyFSubInst(Op0, Op1, I.getFastMathFlags(), DL, TLI, DT, AT))
     return ReplaceInstUsesWith(I, V);
 
   if (isa<Constant>(Op0))