Add parentheses to eliminate warning

[spatel]

LGTM - thanks. But please do use clang-format to make the bots happy.

[YangZhihui]

In D88074#2287666, @spatel wrote:

LGTM - thanks. But please do use clang-format to make the bots happy.

I don't have commit access
maybe you can help me commit it
Thanks : )

[spatel]

This got fixed already/identically with: 2c4c659

llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp

 }
 
 /// This is a specialization of a more general transform from
 /// SimplifyUsingDistributiveLaws. If that code can be made to work optimally
 /// for multi-use cases or propagating nsw/nuw, then we would not need this.
 static Instruction *factorizeMathWithShlOps(BinaryOperator &I,
                                             InstCombiner::BuilderTy &Builder) {
   // TODO: Also handle mul by doubling the shift amount?
-  assert(I.getOpcode() == Instruction::Add ||
-         I.getOpcode() == Instruction::Sub && "Expected add/sub");
+  assert((I.getOpcode() == Instruction::Add ||
+          I.getOpcode() == Instruction::Sub) &&
+         "Expected add/sub");
   auto *Op0 = dyn_cast<BinaryOperator>(I.getOperand(0));
   auto *Op1 = dyn_cast<BinaryOperator>(I.getOperand(1));
   if (!Op0 || !Op1 || !(Op0->hasOneUse() || Op1->hasOneUse()))
     return nullptr;
 
   Value *X, *Y, *ShAmt;
   if (!match(Op0, m_Shl(m_Value(X), m_Value(ShAmt))) ||
       !match(Op1, m_Shl(m_Value(Y), m_Specific(ShAmt))))