R600: Add support for vector local memory loads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189226 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/R600/AMDGPUISelLowering.cpp b/lib/Target/R600/AMDGPUISelLowering.cpp
index 88867b6..1237323 100644
--- a/lib/Target/R600/AMDGPUISelLowering.cpp
+++ b/lib/Target/R600/AMDGPUISelLowering.cpp
@@ -424,6 +424,29 @@
return Op;
}
+SDValue AMDGPUTargetLowering::SplitVectorLoad(const SDValue &Op,
+ SelectionDAG &DAG) const {
+ LoadSDNode *Load = dyn_cast<LoadSDNode>(Op);
+ EVT MemEltVT = Load->getMemoryVT().getVectorElementType();
+ EVT EltVT = Op.getValueType().getVectorElementType();
+ EVT PtrVT = Load->getBasePtr().getValueType();
+ unsigned NumElts = Load->getMemoryVT().getVectorNumElements();
+ SmallVector<SDValue, 8> Loads;
+ SDLoc SL(Op);
+
+ for (unsigned i = 0, e = NumElts; i != e; ++i) {
+ SDValue Ptr = DAG.getNode(ISD::ADD, SL, PtrVT, Load->getBasePtr(),
+ DAG.getConstant(i * (MemEltVT.getSizeInBits() / 8), PtrVT));
+ Loads.push_back(DAG.getExtLoad(Load->getExtensionType(), SL, EltVT,
+ Load->getChain(), Ptr,
+ MachinePointerInfo(Load->getMemOperand()->getValue()),
+ MemEltVT, Load->isVolatile(), Load->isNonTemporal(),
+ Load->getAlignment()));
+ }
+ return DAG.getNode(ISD::BUILD_VECTOR, SL, Op.getValueType(), &Loads[0],
+ Loads.size());
+}
+
SDValue AMDGPUTargetLowering::MergeVectorStore(const SDValue &Op,
SelectionDAG &DAG) const {
StoreSDNode *Store = dyn_cast<StoreSDNode>(Op);