+ lowMemPtr,
+ LN->isVolatile(), LN->isNonTemporal(),
+ 16);
+
+ }
+ // do the store when it might cross the 16 byte memory access boundary.
+ else {
+ // TODO issue a warning if SN->isVolatile()== true? This is likely not
+ // what the user wanted.
+
+ // address offset from nearest lower 16byte alinged address
+ SDValue offset = DAG.getNode(ISD::AND, dl, MVT::i32,
+ SN->getBasePtr(),
+ DAG.getConstant(0xf, MVT::i32));
+ // 16 - offset
+ SDValue offset_compl = DAG.getNode(ISD::SUB, dl, MVT::i32,
+ DAG.getConstant( 16, MVT::i32),
+ offset);
+ // 16 - sizeof(Value)
+ SDValue surplus = DAG.getNode(ISD::SUB, dl, MVT::i32,
+ DAG.getConstant( 16, MVT::i32),
+ DAG.getConstant( VT.getSizeInBits()/8,
+ MVT::i32));
+ // get a registerfull of ones
+ SDValue ones = DAG.getConstant(-1, MVT::v4i32);
+ ones = DAG.getNode(ISD::BITCAST, dl, MVT::i128, ones);
+
+ // Create the 128 bit masks that have ones where the data to store is
+ // located.
+ SDValue lowmask, himask;
+ // if the value to store don't fill up the an entire 128 bits, zero
+ // out the last bits of the mask so that only the value we want to store
+ // is masked.
+ // this is e.g. in the case of store i32, align 2
+ if (!VT.isVector()){
+ Value = DAG.getNode(SPUISD::PREFSLOT2VEC, dl, vecVT, Value);
+ lowmask = DAG.getNode(SPUISD::SRL_BYTES, dl, MVT::i128, ones, surplus);
+ lowmask = DAG.getNode(SPUISD::SHL_BYTES, dl, MVT::i128, lowmask,
+ surplus);
+ Value = DAG.getNode(ISD::BITCAST, dl, MVT::i128, Value);
+ Value = DAG.getNode(ISD::AND, dl, MVT::i128, Value, lowmask);
+
+ }
+ else {
+ lowmask = ones;
+ Value = DAG.getNode(ISD::BITCAST, dl, MVT::i128, Value);
+ }
+ // this will zero, if there are no data that goes to the high quad
+ himask = DAG.getNode(SPUISD::SHL_BYTES, dl, MVT::i128, lowmask,
+ offset_compl);
+ lowmask = DAG.getNode(SPUISD::SRL_BYTES, dl, MVT::i128, lowmask,
+ offset);
+
+ // Load in the old data and zero out the parts that will be overwritten with
+ // the new data to store.
+ SDValue hi = DAG.getLoad(MVT::i128, dl, the_chain,
+ DAG.getNode(ISD::ADD, dl, PtrVT, basePtr,
+ DAG.getConstant( 16, PtrVT)),
+ highMemPtr,
+ SN->isVolatile(), SN->isNonTemporal(),
+ false, 16);
+ the_chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, low.getValue(1),
+ hi.getValue(1));
+
+ low = DAG.getNode(ISD::AND, dl, MVT::i128,
+ DAG.getNode( ISD::BITCAST, dl, MVT::i128, low),
+ DAG.getNode( ISD::XOR, dl, MVT::i128, lowmask, ones));
+ hi = DAG.getNode(ISD::AND, dl, MVT::i128,
+ DAG.getNode( ISD::BITCAST, dl, MVT::i128, hi),
+ DAG.getNode( ISD::XOR, dl, MVT::i128, himask, ones));
+
+ // Shift the Value to store into place. rlow contains the parts that go to
+ // the lower memory chunk, rhi has the parts that go to the upper one.
+ SDValue rlow = DAG.getNode(SPUISD::SRL_BYTES, dl, MVT::i128, Value, offset);
+ rlow = DAG.getNode(ISD::AND, dl, MVT::i128, rlow, lowmask);
+ SDValue rhi = DAG.getNode(SPUISD::SHL_BYTES, dl, MVT::i128, Value,
+ offset_compl);
+
+ // Merge the old data and the new data and store the results
+ // Need to convert vectors here to integer as 'OR'ing floats assert
+ rlow = DAG.getNode(ISD::OR, dl, MVT::i128,
+ DAG.getNode(ISD::BITCAST, dl, MVT::i128, low),
+ DAG.getNode(ISD::BITCAST, dl, MVT::i128, rlow));
+ rhi = DAG.getNode(ISD::OR, dl, MVT::i128,
+ DAG.getNode(ISD::BITCAST, dl, MVT::i128, hi),
+ DAG.getNode(ISD::BITCAST, dl, MVT::i128, rhi));
+
+ low = DAG.getStore(the_chain, dl, rlow, basePtr,
+ lowMemPtr,
+ SN->isVolatile(), SN->isNonTemporal(), 16);
+ hi = DAG.getStore(the_chain, dl, rhi,
+ DAG.getNode(ISD::ADD, dl, PtrVT, basePtr,
+ DAG.getConstant( 16, PtrVT)),
+ highMemPtr,
+ SN->isVolatile(), SN->isNonTemporal(), 16);
+ result = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, low.getValue(0),
+ hi.getValue(0));