[x86] Initialize a pointer to null to fix a bug in r212602.

This should restore GCC hosts (which happen to put the bad stuff into
the pointer) and MSan, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212606 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2014-07-09 10:36:42 +00:00
parent f08bcb9b97
commit a2a8a72f6f

View File

@ -20385,7 +20385,7 @@ static SDValue WidenMaskArithmetic(SDNode *N, SelectionDAG &DAG,
// The right side has to be a 'trunc' or a constant vector.
bool RHSTrunc = N1.getOpcode() == ISD::TRUNCATE;
ConstantSDNode *RHSConstSplat;
ConstantSDNode *RHSConstSplat = nullptr;
if (auto *RHSBV = dyn_cast<BuildVectorSDNode>(N1))
RHSConstSplat = RHSBV->getConstantSplatNode();
if (!RHSTrunc && !RHSConstSplat)