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-rw-r--r--llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp113
1 files changed, 42 insertions, 71 deletions
diff --git a/llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp b/llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
index 2d1a7006c34..1ed06e34ce1 100644
--- a/llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
@@ -294,19 +294,15 @@ namespace {
((vecVT == MVT::v2i64) &&
((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
(SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
- (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i64).getNode() != 0)))) {
- HandleSDNode Dummy(SDValue(bvNode, 0));
- if (SDNode *N = Select(bvNode))
- return N;
- return Dummy.getValue().getNode();
- }
+ (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i64).getNode() != 0))))
+ return Select(bvNode);
// No, need to emit a constant pool spill:
std::vector<Constant*> CV;
for (size_t i = 0; i < bvNode->getNumOperands(); ++i) {
ConstantSDNode *V = dyn_cast<ConstantSDNode > (bvNode->getOperand(i));
- CV.push_back(const_cast<ConstantInt *>(V->getConstantIntValue()));
+ CV.push_back(const_cast<ConstantInt *> (V->getConstantIntValue()));
}
Constant *CP = ConstantVector::get(CV);
@@ -315,15 +311,10 @@ namespace {
SDValue CGPoolOffset =
SPU::LowerConstantPool(CPIdx, *CurDAG,
SPUtli.getSPUTargetMachine());
-
- HandleSDNode Dummy(CurDAG->getLoad(vecVT, dl,
- CurDAG->getEntryNode(), CGPoolOffset,
- PseudoSourceValue::getConstantPool(),0,
- false, false, Alignment));
- CurDAG->ReplaceAllUsesWith(SDValue(bvNode, 0), Dummy.getValue());
- if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
- return N;
- return Dummy.getValue().getNode();
+ return SelectCode(CurDAG->getLoad(vecVT, dl,
+ CurDAG->getEntryNode(), CGPoolOffset,
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, Alignment).getNode());
}
/// Select - Convert the specified operand from a target-independent to a
@@ -701,8 +692,9 @@ SPUDAGToDAGISel::Select(SDNode *N) {
SDValue Ops[8];
DebugLoc dl = N->getDebugLoc();
- if (N->isMachineOpcode())
+ if (N->isMachineOpcode()) {
return NULL; // Already selected.
+ }
if (Opc == ISD::FrameIndex) {
int FI = cast<FrameIndexSDNode>(N)->getIndex();
@@ -767,65 +759,43 @@ SPUDAGToDAGISel::Select(SDNode *N) {
}
SDNode *shufMaskLoad = emitBuildVector(shufMask.getNode());
-
- HandleSDNode PromoteScalar(CurDAG->getNode(SPUISD::PREFSLOT2VEC, dl,
- Op0VecVT, Op0));
-
- SDValue PromScalar;
- if (SDNode *N = SelectCode(PromoteScalar.getValue().getNode()))
- PromScalar = SDValue(N, 0);
- else
- PromScalar = PromoteScalar.getValue();
-
+ SDNode *PromoteScalar =
+ SelectCode(CurDAG->getNode(SPUISD::PREFSLOT2VEC, dl,
+ Op0VecVT, Op0).getNode());
+
SDValue zextShuffle =
CurDAG->getNode(SPUISD::SHUFB, dl, OpVecVT,
- PromScalar, PromScalar,
+ SDValue(PromoteScalar, 0),
+ SDValue(PromoteScalar, 0),
SDValue(shufMaskLoad, 0));
- HandleSDNode Dummy2(zextShuffle);
- if (SDNode *N = SelectCode(Dummy2.getValue().getNode()))
- return N;
- HandleSDNode Dummy(CurDAG->getNode(SPUISD::VEC2PREFSLOT, dl, OpVT,
- Dummy2.getValue()));
-
- CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
- SelectCode(Dummy.getValue().getNode());
- return Dummy.getValue().getNode();
+ // N.B.: BIT_CONVERT replaces and updates the zextShuffle node, so we
+ // re-use it in the VEC2PREFSLOT selection without needing to explicitly
+ // call SelectCode (it's already done for us.)
+ SelectCode(CurDAG->getNode(ISD::BIT_CONVERT, dl, OpVecVT, zextShuffle).getNode());
+ return SelectCode(CurDAG->getNode(SPUISD::VEC2PREFSLOT, dl, OpVT,
+ zextShuffle).getNode());
} else if (Opc == ISD::ADD && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
SDNode *CGLoad =
emitBuildVector(getCarryGenerateShufMask(*CurDAG, dl).getNode());
- HandleSDNode Dummy(CurDAG->getNode(SPUISD::ADD64_MARKER, dl, OpVT,
- N->getOperand(0), N->getOperand(1),
- SDValue(CGLoad, 0)));
-
- CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
- if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
- return N;
- return Dummy.getValue().getNode();
+ return SelectCode(CurDAG->getNode(SPUISD::ADD64_MARKER, dl, OpVT,
+ N->getOperand(0), N->getOperand(1),
+ SDValue(CGLoad, 0)).getNode());
} else if (Opc == ISD::SUB && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
SDNode *CGLoad =
emitBuildVector(getBorrowGenerateShufMask(*CurDAG, dl).getNode());
- HandleSDNode Dummy(CurDAG->getNode(SPUISD::SUB64_MARKER, dl, OpVT,
- N->getOperand(0), N->getOperand(1),
- SDValue(CGLoad, 0)));
-
- CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
- if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
- return N;
- return Dummy.getValue().getNode();
+ return SelectCode(CurDAG->getNode(SPUISD::SUB64_MARKER, dl, OpVT,
+ N->getOperand(0), N->getOperand(1),
+ SDValue(CGLoad, 0)).getNode());
} else if (Opc == ISD::MUL && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
SDNode *CGLoad =
emitBuildVector(getCarryGenerateShufMask(*CurDAG, dl).getNode());
- HandleSDNode Dummy(CurDAG->getNode(SPUISD::MUL64_MARKER, dl, OpVT,
- N->getOperand(0), N->getOperand(1),
- SDValue(CGLoad, 0)));
- CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
- if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
- return N;
- return Dummy.getValue().getNode();
+ return SelectCode(CurDAG->getNode(SPUISD::MUL64_MARKER, dl, OpVT,
+ N->getOperand(0), N->getOperand(1),
+ SDValue(CGLoad, 0)).getNode());
} else if (Opc == ISD::TRUNCATE) {
SDValue Op0 = N->getOperand(0);
if ((Op0.getOpcode() == ISD::SRA || Op0.getOpcode() == ISD::SRL)
@@ -862,14 +832,17 @@ SPUDAGToDAGISel::Select(SDNode *N) {
}
}
} else if (Opc == ISD::SHL) {
- if (OpVT == MVT::i64)
+ if (OpVT == MVT::i64) {
return SelectSHLi64(N, OpVT);
+ }
} else if (Opc == ISD::SRL) {
- if (OpVT == MVT::i64)
+ if (OpVT == MVT::i64) {
return SelectSRLi64(N, OpVT);
+ }
} else if (Opc == ISD::SRA) {
- if (OpVT == MVT::i64)
+ if (OpVT == MVT::i64) {
return SelectSRAi64(N, OpVT);
+ }
} else if (Opc == ISD::FNEG
&& (OpVT == MVT::f64 || OpVT == MVT::v2f64)) {
DebugLoc dl = N->getDebugLoc();
@@ -1251,15 +1224,13 @@ SDNode *SPUDAGToDAGISel::SelectI64Constant(uint64_t Value64, EVT OpVT,
? shufmask.getNode()
: emitBuildVector(shufmask.getNode()));
- SDValue shufNode =
- CurDAG->getNode(SPUISD::SHUFB, dl, OpVecVT,
+ SDNode *shufNode =
+ Select(CurDAG->getNode(SPUISD::SHUFB, dl, OpVecVT,
SDValue(lhsNode, 0), SDValue(rhsNode, 0),
- SDValue(shufMaskNode, 0));
- HandleSDNode Dummy(shufNode);
- SDNode *SN = SelectCode(Dummy.getValue().getNode());
- if (SN == 0) SN = Dummy.getValue().getNode();
-
- return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT, SDValue(SN, 0));
+ SDValue(shufMaskNode, 0)).getNode());
+
+ return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT,
+ SDValue(shufNode, 0));
} else if (i64vec.getOpcode() == ISD::BUILD_VECTOR) {
return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT,
SDValue(emitBuildVector(i64vec.getNode()), 0));
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