diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index cb0c8ba..7199fac 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -11595,6 +11595,15 @@ SDValue PPCTargetLowering::LowerSCALAR_TO_VECTOR(SDValue Op, MachineFunction &MF = DAG.getMachineFunction(); SDValue Op0 = Op.getOperand(0); + EVT ValVT = Op0.getValueType(); + unsigned EltSize = Op.getValueType().getScalarSizeInBits(); + if (isa<ConstantSDNode>(Op0) && EltSize <= 32) { + int64_t IntVal = Op.getConstantOperandVal(0); + if (IntVal >= -16 && IntVal <= 15) + return getCanonicalConstSplat(IntVal, EltSize / 8, Op.getValueType(), DAG, + dl); + } + ReuseLoadInfo RLI; if (Subtarget.hasLFIWAX() && Subtarget.hasVSX() && Op.getValueType() == MVT::v4i32 && Op0.getOpcode() == ISD::LOAD && @@ -11619,7 +11628,6 @@ SDValue PPCTargetLowering::LowerSCALAR_TO_VECTOR(SDValue Op, SDValue FIdx = DAG.getFrameIndex(FrameIdx, PtrVT); SDValue Val = Op0; - EVT ValVT = Val.getValueType(); // P10 hardware store forwarding requires that a single store contains all // the data for the load. P10 is able to merge a pair of adjacent stores. Try // to avoid load hit store on P10 when running binaries compiled for older |