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Remove unneeded ARM-specific DAG nodes for VLD* and VST* Neon operations.

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The instructions can be selected directly from the intrinsics.  We will need
to add some ARM-specific nodes for VLD/VST of 3 and 4 128-bit vectors, but
those are not yet implemented.

llvm-svn: 80117
This commit is contained in:
Bob Wilson 2009-08-26 17:39:53 +00:00
parent c61d5bbbe2
commit 5240e9de02
3 changed files with 133 additions and 150 deletions
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226
lib/Target/ARM/ARMISelDAGToDAG.cpp
View File

@ -1263,117 +1263,6 @@ SDNode *ARMDAGToDAGISel::Select(SDValue Op) {
return CurDAG->SelectNodeTo(Op.getNode(), Opc, VT, Ops, 5);
}
case ARMISD::VLD2D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
EVT VT = Op.getValueType();
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VLD2D type");
case MVT::v8i8: Opc = ARM::VLD2d8; break;
case MVT::v4i16: Opc = ARM::VLD2d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD2d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
return CurDAG->getTargetNode(Opc, dl, VT, VT, MVT::Other, Ops, 4);
}
case ARMISD::VLD3D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
EVT VT = Op.getValueType();
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VLD3D type");
case MVT::v8i8: Opc = ARM::VLD3d8; break;
case MVT::v4i16: Opc = ARM::VLD3d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD3d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
return CurDAG->getTargetNode(Opc, dl, VT, VT, VT, MVT::Other, Ops, 4);
}
case ARMISD::VLD4D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
EVT VT = Op.getValueType();
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VLD4D type");
case MVT::v8i8: Opc = ARM::VLD4d8; break;
case MVT::v4i16: Opc = ARM::VLD4d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD4d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
std::vector<EVT> ResTys(4, VT);
ResTys.push_back(MVT::Other);
return CurDAG->getTargetNode(Opc, dl, ResTys, Ops, 4);
}
case ARMISD::VST2D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
switch (N->getOperand(2).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VST2D type");
case MVT::v8i8: Opc = ARM::VST2d8; break;
case MVT::v4i16: Opc = ARM::VST2d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST2d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(2), N->getOperand(3), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 6);
}
case ARMISD::VST3D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
switch (N->getOperand(2).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VST3D type");
case MVT::v8i8: Opc = ARM::VST3d8; break;
case MVT::v4i16: Opc = ARM::VST3d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST3d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(2), N->getOperand(3),
N->getOperand(4), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 7);
}
case ARMISD::VST4D: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(1), MemAddr, MemUpdate, MemOpc))
return NULL;
unsigned Opc = 0;
switch (N->getOperand(2).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled VST4D type");
case MVT::v8i8: Opc = ARM::VST4d8; break;
case MVT::v4i16: Opc = ARM::VST4d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST4d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(2), N->getOperand(3),
N->getOperand(4), N->getOperand(5), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 8);
}
case ARMISD::VZIP: {
unsigned Opc = 0;
EVT VT = N->getValueType(0);
@ -1425,6 +1314,121 @@ SDNode *ARMDAGToDAGISel::Select(SDValue Op) {
return CurDAG->getTargetNode(Opc, dl, VT, VT,
N->getOperand(0), N->getOperand(1));
}
case ISD::INTRINSIC_VOID:
case ISD::INTRINSIC_W_CHAIN: {
unsigned IntNo = cast<ConstantSDNode>(N->getOperand(1))->getZExtValue();
EVT VT = N->getValueType(0);
unsigned Opc = 0;
switch (IntNo) {
default:
break;
case Intrinsic::arm_neon_vld2: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vld2 type");
case MVT::v8i8: Opc = ARM::VLD2d8; break;
case MVT::v4i16: Opc = ARM::VLD2d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD2d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
return CurDAG->getTargetNode(Opc, dl, VT, VT, MVT::Other, Ops, 4);
}
case Intrinsic::arm_neon_vld3: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vld3 type");
case MVT::v8i8: Opc = ARM::VLD3d8; break;
case MVT::v4i16: Opc = ARM::VLD3d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD3d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
return CurDAG->getTargetNode(Opc, dl, VT, VT, VT, MVT::Other, Ops, 4);
}
case Intrinsic::arm_neon_vld4: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vld4 type");
case MVT::v8i8: Opc = ARM::VLD4d8; break;
case MVT::v4i16: Opc = ARM::VLD4d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VLD4d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
std::vector<EVT> ResTys(4, VT);
ResTys.push_back(MVT::Other);
return CurDAG->getTargetNode(Opc, dl, ResTys, Ops, 4);
}
case Intrinsic::arm_neon_vst2: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (N->getOperand(3).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vst2 type");
case MVT::v8i8: Opc = ARM::VST2d8; break;
case MVT::v4i16: Opc = ARM::VST2d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST2d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(3), N->getOperand(4), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 6);
}
case Intrinsic::arm_neon_vst3: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (N->getOperand(3).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vst3 type");
case MVT::v8i8: Opc = ARM::VST3d8; break;
case MVT::v4i16: Opc = ARM::VST3d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST3d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(3), N->getOperand(4),
N->getOperand(5), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 7);
}
case Intrinsic::arm_neon_vst4: {
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
switch (N->getOperand(3).getValueType().getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vst4 type");
case MVT::v8i8: Opc = ARM::VST4d8; break;
case MVT::v4i16: Opc = ARM::VST4d16; break;
case MVT::v2f32:
case MVT::v2i32: Opc = ARM::VST4d32; break;
}
SDValue Chain = N->getOperand(0);
const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
N->getOperand(3), N->getOperand(4),
N->getOperand(5), N->getOperand(6), Chain };
return CurDAG->getTargetNode(Opc, dl, MVT::Other, Ops, 8);
}
}
}
}
return SelectCode(Op);

49
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -483,12 +483,6 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
case ARMISD::VGETLANEs: return "ARMISD::VGETLANEs";
case ARMISD::VDUP: return "ARMISD::VDUP";
case ARMISD::VDUPLANE: return "ARMISD::VDUPLANE";
case ARMISD::VLD2D: return "ARMISD::VLD2D";
case ARMISD::VLD3D: return "ARMISD::VLD3D";
case ARMISD::VLD4D: return "ARMISD::VLD4D";
case ARMISD::VST2D: return "ARMISD::VST2D";
case ARMISD::VST3D: return "ARMISD::VST3D";
case ARMISD::VST4D: return "ARMISD::VST4D";
case ARMISD::VEXT: return "ARMISD::VEXT";
case ARMISD::VREV64: return "ARMISD::VREV64";
case ARMISD::VREV32: return "ARMISD::VREV32";
@ -1345,52 +1339,45 @@ SDValue ARMTargetLowering::LowerGLOBAL_OFFSET_TABLE(SDValue Op,
}
static SDValue LowerNeonVLDIntrinsic(SDValue Op, SelectionDAG &DAG,
unsigned Opcode) {
unsigned NumVecs) {
SDNode *Node = Op.getNode();
EVT VT = Node->getValueType(0);
DebugLoc dl = Op.getDebugLoc();
if (!VT.is64BitVector())
return SDValue(); // unimplemented
// No expansion needed for 64-bit vectors.
if (VT.is64BitVector())
return SDValue();
SDValue Ops[] = { Node->getOperand(0),
Node->getOperand(2) };
return DAG.getNode(Opcode, dl, Node->getVTList(), Ops, 2);
// FIXME: We need to expand VLD3 and VLD4 of 128-bit vectors into separate
// operations to load the even and odd registers.
return SDValue();
}
static SDValue LowerNeonVSTIntrinsic(SDValue Op, SelectionDAG &DAG,
unsigned Opcode, unsigned NumVecs) {
unsigned NumVecs) {
SDNode *Node = Op.getNode();
EVT VT = Node->getOperand(3).getValueType();
DebugLoc dl = Op.getDebugLoc();
if (!VT.is64BitVector())
return SDValue(); // unimplemented
// No expansion needed for 64-bit vectors.
if (VT.is64BitVector())
return SDValue();
SmallVector<SDValue, 6> Ops;
Ops.push_back(Node->getOperand(0));
Ops.push_back(Node->getOperand(2));
for (unsigned N = 0; N < NumVecs; ++N)
Ops.push_back(Node->getOperand(N + 3));
return DAG.getNode(Opcode, dl, MVT::Other, Ops.data(), Ops.size());
// FIXME: We need to expand VST3 and VST4 of 128-bit vectors into separate
// operations to store the even and odd registers.
return SDValue();
}
SDValue
ARMTargetLowering::LowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) {
unsigned IntNo = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue();
switch (IntNo) {
case Intrinsic::arm_neon_vld2:
return LowerNeonVLDIntrinsic(Op, DAG, ARMISD::VLD2D);
case Intrinsic::arm_neon_vld3:
return LowerNeonVLDIntrinsic(Op, DAG, ARMISD::VLD3D);
return LowerNeonVLDIntrinsic(Op, DAG, 3);
case Intrinsic::arm_neon_vld4:
return LowerNeonVLDIntrinsic(Op, DAG, ARMISD::VLD4D);
case Intrinsic::arm_neon_vst2:
return LowerNeonVSTIntrinsic(Op, DAG, ARMISD::VST2D, 2);
return LowerNeonVLDIntrinsic(Op, DAG, 4);
case Intrinsic::arm_neon_vst3:
return LowerNeonVSTIntrinsic(Op, DAG, ARMISD::VST3D, 3);
return LowerNeonVSTIntrinsic(Op, DAG, 3);
case Intrinsic::arm_neon_vst4:
return LowerNeonVSTIntrinsic(Op, DAG, ARMISD::VST4D, 4);
return LowerNeonVSTIntrinsic(Op, DAG, 4);
default: return SDValue(); // Don't custom lower most intrinsics.
}
}

8
lib/Target/ARM/ARMISelLowering.h
View File

@ -119,14 +119,6 @@ namespace llvm {
VDUP,
VDUPLANE,
// Vector load/store with (de)interleaving
VLD2D,
VLD3D,
VLD4D,
VST2D,
VST3D,
VST4D,
// Vector shuffles:
VEXT, // extract
VREV64, // reverse elements within 64-bit doublewords