Fix the build for gcc-4.2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48639 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 1b7578904d5430f8dcee70d54246940f7ed8e951..083dd520b4a995249fd87d3c233fc1ee7cc4bc06 100644 (file)
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -833,7 +833,7 @@ static void ComputeMaskedBits(Value *V, const APInt &Mask, APInt& KnownZero,
       return;
     }
     break;
-  case Instruction::Add:
+  case Instruction::Add: {
     // If either the LHS or the RHS are Zero, the result is zero.
     ComputeMaskedBits(I->getOperand(1), Mask, KnownZero, KnownOne, Depth+1);
     ComputeMaskedBits(I->getOperand(0), Mask, KnownZero2, KnownOne2, Depth+1);
@@ -849,6 +849,7 @@ static void ComputeMaskedBits(Value *V, const APInt &Mask, APInt& KnownZero,
     KnownZero = APInt::getLowBitsSet(BitWidth, KnownZeroOut);
     KnownOne = APInt(BitWidth, 0);
     return;
+  }
   case Instruction::Sub: {
     ConstantInt *CLHS = dyn_cast<ConstantInt>(I->getOperand(0));
     if (!CLHS) break;