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Assign ordering to more instructions. Incremental check-in.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91846 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2009-12-21 22:30:11 +00:00
parent 0777e92721
commit 49fcff8a5d
1 changed files with 156 additions and 57 deletions
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213
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -1967,10 +1967,16 @@ void SelectionDAGBuilder::visitSwitch(SwitchInst &SI) {
// If this is not a fall-through branch, emit the branch.
CurMBB->addSuccessor(Default);
if (Default != NextBlock)
DAG.setRoot(DAG.getNode(ISD::BR, getCurDebugLoc(),
MVT::Other, getControlRoot(),
DAG.getBasicBlock(Default)));
if (Default != NextBlock) {
SDValue Val = DAG.getNode(ISD::BR, getCurDebugLoc(),
MVT::Other, getControlRoot(),
DAG.getBasicBlock(Default));
DAG.setRoot(Val);
if (DisableScheduling)
DAG.AssignOrdering(Val.getNode(), SDNodeOrder);
}
return;
}
@ -2022,11 +2028,14 @@ void SelectionDAGBuilder::visitIndirectBr(IndirectBrInst &I) {
for (unsigned i = 0, e = I.getNumSuccessors(); i != e; ++i)
CurMBB->addSuccessor(FuncInfo.MBBMap[I.getSuccessor(i)]);
DAG.setRoot(DAG.getNode(ISD::BRIND, getCurDebugLoc(),
MVT::Other, getControlRoot(),
getValue(I.getAddress())));
}
SDValue Res = DAG.getNode(ISD::BRIND, getCurDebugLoc(),
MVT::Other, getControlRoot(),
getValue(I.getAddress()));
DAG.setRoot(Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFSub(User &I) {
// -0.0 - X --> fneg
@ -2040,17 +2049,28 @@ void SelectionDAGBuilder::visitFSub(User &I) {
Constant *CNZ = ConstantVector::get(&NZ[0], NZ.size());
if (CV == CNZ) {
SDValue Op2 = getValue(I.getOperand(1));
setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
Op2.getValueType(), Op2));
SDValue Res = DAG.getNode(ISD::FNEG, getCurDebugLoc(),
Op2.getValueType(), Op2);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
return;
}
}
}
if (ConstantFP *CFP = dyn_cast<ConstantFP>(I.getOperand(0)))
if (CFP->isExactlyValue(ConstantFP::getNegativeZero(Ty)->getValueAPF())) {
SDValue Op2 = getValue(I.getOperand(1));
setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
Op2.getValueType(), Op2));
SDValue Res = DAG.getNode(ISD::FNEG, getCurDebugLoc(),
Op2.getValueType(), Op2);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
return;
}
@ -2060,9 +2080,12 @@ void SelectionDAGBuilder::visitFSub(User &I) {
void SelectionDAGBuilder::visitBinary(User &I, unsigned OpCode) {
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
SDValue Res = DAG.getNode(OpCode, getCurDebugLoc(),
Op1.getValueType(), Op1, Op2);
setValue(&I, Res);
setValue(&I, DAG.getNode(OpCode, getCurDebugLoc(),
Op1.getValueType(), Op1, Op2));
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitShift(User &I, unsigned Opcode) {
@ -2095,8 +2118,12 @@ void SelectionDAGBuilder::visitShift(User &I, unsigned Opcode) {
TLI.getPointerTy(), Op2);
}
setValue(&I, DAG.getNode(Opcode, getCurDebugLoc(),
Op1.getValueType(), Op1, Op2));
SDValue Res = DAG.getNode(Opcode, getCurDebugLoc(),
Op1.getValueType(), Op1, Op2);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitICmp(User &I) {
@ -2110,7 +2137,11 @@ void SelectionDAGBuilder::visitICmp(User &I) {
ISD::CondCode Opcode = getICmpCondCode(predicate);
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Opcode));
SDValue Res = DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Opcode);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFCmp(User &I) {
@ -2123,37 +2154,54 @@ void SelectionDAGBuilder::visitFCmp(User &I) {
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Condition = getFCmpCondCode(predicate);
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Condition));
SDValue Res = DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Condition);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitSelect(User &I) {
SmallVector<EVT, 4> ValueVTs;
ComputeValueVTs(TLI, I.getType(), ValueVTs);
unsigned NumValues = ValueVTs.size();
if (NumValues != 0) {
SmallVector<SDValue, 4> Values(NumValues);
SDValue Cond = getValue(I.getOperand(0));
SDValue TrueVal = getValue(I.getOperand(1));
SDValue FalseVal = getValue(I.getOperand(2));
if (NumValues == 0) return;
for (unsigned i = 0; i != NumValues; ++i)
Values[i] = DAG.getNode(ISD::SELECT, getCurDebugLoc(),
TrueVal.getNode()->getValueType(i), Cond,
SDValue(TrueVal.getNode(), TrueVal.getResNo() + i),
SDValue(FalseVal.getNode(), FalseVal.getResNo() + i));
SmallVector<SDValue, 4> Values(NumValues);
SDValue Cond = getValue(I.getOperand(0));
SDValue TrueVal = getValue(I.getOperand(1));
SDValue FalseVal = getValue(I.getOperand(2));
setValue(&I, DAG.getNode(ISD::MERGE_VALUES, getCurDebugLoc(),
DAG.getVTList(&ValueVTs[0], NumValues),
&Values[0], NumValues));
for (unsigned i = 0; i != NumValues; ++i) {
Values[i] = DAG.getNode(ISD::SELECT, getCurDebugLoc(),
TrueVal.getNode()->getValueType(i), Cond,
SDValue(TrueVal.getNode(),
TrueVal.getResNo() + i),
SDValue(FalseVal.getNode(),
FalseVal.getResNo() + i));
if (DisableScheduling)
DAG.AssignOrdering(Values[i].getNode(), SDNodeOrder);
}
}
SDValue Res = DAG.getNode(ISD::MERGE_VALUES, getCurDebugLoc(),
DAG.getVTList(&ValueVTs[0], NumValues),
&Values[0], NumValues);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitTrunc(User &I) {
// TruncInst cannot be a no-op cast because sizeof(src) > sizeof(dest).
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitZExt(User &I) {
@ -2161,7 +2209,11 @@ void SelectionDAGBuilder::visitZExt(User &I) {
// ZExt also can't be a cast to bool for same reason. So, nothing much to do
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitSExt(User &I) {
@ -2169,50 +2221,78 @@ void SelectionDAGBuilder::visitSExt(User &I) {
// SExt also can't be a cast to bool for same reason. So, nothing much to do
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::SIGN_EXTEND, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::SIGN_EXTEND, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFPTrunc(User &I) {
// FPTrunc is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_ROUND, getCurDebugLoc(),
DestVT, N, DAG.getIntPtrConstant(0)));
SDValue Res = DAG.getNode(ISD::FP_ROUND, getCurDebugLoc(),
DestVT, N, DAG.getIntPtrConstant(0));
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFPExt(User &I){
// FPTrunc is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_EXTEND, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::FP_EXTEND, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFPToUI(User &I) {
// FPToUI is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_TO_UINT, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::FP_TO_UINT, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitFPToSI(User &I) {
// FPToSI is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_TO_SINT, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::FP_TO_SINT, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitUIToFP(User &I) {
// UIToFP is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::UINT_TO_FP, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::UINT_TO_FP, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitSIToFP(User &I){
// SIToFP is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::SINT_TO_FP, getCurDebugLoc(), DestVT, N));
SDValue Res = DAG.getNode(ISD::SINT_TO_FP, getCurDebugLoc(), DestVT, N);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitPtrToInt(User &I) {
@ -2221,8 +2301,11 @@ void SelectionDAGBuilder::visitPtrToInt(User &I) {
SDValue N = getValue(I.getOperand(0));
EVT SrcVT = N.getValueType();
EVT DestVT = TLI.getValueType(I.getType());
SDValue Result = DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT);
setValue(&I, Result);
SDValue Res = DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitIntToPtr(User &I) {
@ -2231,20 +2314,29 @@ void SelectionDAGBuilder::visitIntToPtr(User &I) {
SDValue N = getValue(I.getOperand(0));
EVT SrcVT = N.getValueType();
EVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT));
SDValue Res = DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitBitCast(User &I) {
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
// BitCast assures us that source and destination are the same size so this
// is either a BIT_CONVERT or a no-op.
if (DestVT != N.getValueType())
setValue(&I, DAG.getNode(ISD::BIT_CONVERT, getCurDebugLoc(),
DestVT, N)); // convert types
else
setValue(&I, N); // noop cast.
// BitCast assures us that source and destination are the same size so this is
// either a BIT_CONVERT or a no-op.
if (DestVT != N.getValueType()) {
SDValue Res = DAG.getNode(ISD::BIT_CONVERT, getCurDebugLoc(),
DestVT, N); // convert types.
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
} else {
setValue(&I, N); // noop cast.
}
}
void SelectionDAGBuilder::visitInsertElement(User &I) {
@ -2253,10 +2345,13 @@ void SelectionDAGBuilder::visitInsertElement(User &I) {
SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(),
TLI.getPointerTy(),
getValue(I.getOperand(2)));
SDValue Res = DAG.getNode(ISD::INSERT_VECTOR_ELT, getCurDebugLoc(),
TLI.getValueType(I.getType()),
InVec, InVal, InIdx);
setValue(&I, Res);
setValue(&I, DAG.getNode(ISD::INSERT_VECTOR_ELT, getCurDebugLoc(),
TLI.getValueType(I.getType()),
InVec, InVal, InIdx));
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}
void SelectionDAGBuilder::visitExtractElement(User &I) {
@ -2264,8 +2359,12 @@ void SelectionDAGBuilder::visitExtractElement(User &I) {
SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(),
TLI.getPointerTy(),
getValue(I.getOperand(1)));
setValue(&I, DAG.getNode(ISD::EXTRACT_VECTOR_ELT, getCurDebugLoc(),
TLI.getValueType(I.getType()), InVec, InIdx));
SDValue Res = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, getCurDebugLoc(),
TLI.getValueType(I.getType()), InVec, InIdx);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
}