diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index f532d48a701..df75ebe4a33 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -11395,9 +11395,12 @@ SDValue PPCTargetLowering::PerformDAGCombine(SDNode *N, // it need to be shifted to the right side before STBRX. EVT mVT = cast<StoreSDNode>(N)->getMemoryVT(); if (Op1VT.bitsGT(mVT)) { - int shift = Op1VT.getSizeInBits() - mVT.getSizeInBits(); + int Shift = Op1VT.getSizeInBits() - mVT.getSizeInBits(); BSwapOp = DAG.getNode(ISD::SRL, dl, Op1VT, BSwapOp, - DAG.getConstant(shift, dl, MVT::i32)); + DAG.getConstant(Shift, dl, MVT::i32)); + // Need to truncate if this is a bswap of i64 stored as i32/i16. + if (Op1VT == MVT::i64) + BSwapOp = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, BSwapOp); } SDValue Ops[] = { |
