Fix VLDMQ and VSTMQ instructions to use the correct encoding and address modes.
These instructions are only needed for codegen, so I've removed all the
explicit encoding bits for now; they should be set in the same way as the for
VLDMD and VSTMD whenever we add encodings for VFP. The use of addrmode5
requires that the instructions be custom-selected so that the number of
registers can be set in the AM5Opc value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99309 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index d0d940a..7d48663 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -1701,6 +1701,35 @@
ResNode = SelectARMIndexedLoad(N);
if (ResNode)
return ResNode;
+
+ // VLDMQ must be custom-selected for "v2f64 load" to set the AM5Opc value.
+ if (Subtarget->hasVFP2() &&
+ N->getValueType(0).getSimpleVT().SimpleTy == MVT::v2f64) {
+ SDValue Chain = N->getOperand(0);
+ SDValue AM5Opc =
+ CurDAG->getTargetConstant(ARM_AM::getAM5Opc(ARM_AM::ia, 4), MVT::i32);
+ SDValue Pred = CurDAG->getTargetConstant(14, MVT::i32);
+ SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
+ SDValue Ops[] = { N->getOperand(1), AM5Opc, Pred, PredReg, Chain };
+ return CurDAG->getMachineNode(ARM::VLDMQ, dl, MVT::v2f64, MVT::Other,
+ Ops, 5);
+ }
+ // Other cases are autogenerated.
+ break;
+ }
+ case ISD::STORE: {
+ // VSTMQ must be custom-selected for "v2f64 store" to set the AM5Opc value.
+ if (Subtarget->hasVFP2() &&
+ N->getOperand(1).getValueType().getSimpleVT().SimpleTy == MVT::v2f64) {
+ SDValue Chain = N->getOperand(0);
+ SDValue AM5Opc =
+ CurDAG->getTargetConstant(ARM_AM::getAM5Opc(ARM_AM::ia, 4), MVT::i32);
+ SDValue Pred = CurDAG->getTargetConstant(14, MVT::i32);
+ SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
+ SDValue Ops[] = { N->getOperand(1), N->getOperand(2),
+ AM5Opc, Pred, PredReg, Chain };
+ return CurDAG->getMachineNode(ARM::VSTMQ, dl, MVT::Other, Ops, 6);
+ }
// Other cases are autogenerated.
break;
}