diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp index 901d369..475bde1 100644 --- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp +++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp @@ -330,6 +330,9 @@ static bool isOpcWithIntImmediate(SDNode *N, unsigned Opc, unsigned& Imm) { } bool PPCDAGToDAGISel::isRunOfOnes(unsigned Val, unsigned &MB, unsigned &ME) { + if (!Val) + return false; + if (isShiftedMask_32(Val)) { // look for the first non-zero bit MB = countLeadingZeros(Val); @@ -435,7 +438,7 @@ SDNode *PPCDAGToDAGISel::SelectBitfieldInsert(SDNode *N) { } unsigned MB, ME; - if (InsertMask && isRunOfOnes(InsertMask, MB, ME)) { + if (isRunOfOnes(InsertMask, MB, ME)) { SDValue Tmp1, Tmp2; if ((Op1Opc == ISD::SHL || Op1Opc == ISD::SRL) && |