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 1b75789..083dd52 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -833,7 +833,7 @@
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 @@
KnownZero = APInt::getLowBitsSet(BitWidth, KnownZeroOut);
KnownOne = APInt(BitWidth, 0);
return;
+ }
case Instruction::Sub: {
ConstantInt *CLHS = dyn_cast<ConstantInt>(I->getOperand(0));
if (!CLHS) break;