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Remove superfluous SDNode ordering.

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llvm-svn: 91971
This commit is contained in:
Bill Wendling 2009-12-23 01:28:19 +00:00
parent 653b77d8ad
commit ce8aa5aab2
1 changed files with 16 additions and 48 deletions
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64
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -648,7 +648,6 @@ SDValue SelectionDAGBuilder::getControlRoot() {
PendingExports.size());
PendingExports.clear();
DAG.setRoot(Root);
if (DisableScheduling) DAG.AssignOrdering(Root.getNode(), SDNodeOrder);
return Root;
}
@ -4986,11 +4985,8 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
// Both PendingLoads and PendingExports must be flushed here;
// this call might not return.
(void)getRoot();
SDValue Label = DAG.getLabel(ISD::EH_LABEL, getCurDebugLoc(),
getControlRoot(), BeginLabel);
DAG.setRoot(Label);
if (DisableScheduling)
DAG.AssignOrdering(Label.getNode(), SDNodeOrder);
DAG.setRoot(DAG.getLabel(ISD::EH_LABEL, getCurDebugLoc(),
getControlRoot(), BeginLabel));
}
// Check if target-independent constraints permit a tail call here.
@ -5039,11 +5035,6 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
Add, NULL, Offsets[i], false, 1);
Values[i] = L;
Chains[i] = L.getValue(1);
if (DisableScheduling) {
DAG.AssignOrdering(Add.getNode(), SDNodeOrder);
DAG.AssignOrdering(L.getNode(), SDNodeOrder);
}
}
SDValue Chain = DAG.getNode(ISD::TokenFactor, getCurDebugLoc(),
@ -5076,12 +5067,8 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
// Insert a label at the end of the invoke call to mark the try range. This
// can be used to detect deletion of the invoke via the MachineModuleInfo.
EndLabel = MMI->NextLabelID();
SDValue Label = DAG.getLabel(ISD::EH_LABEL, getCurDebugLoc(),
getRoot(), EndLabel);
DAG.setRoot(Label);
if (DisableScheduling)
DAG.AssignOrdering(Label.getNode(), SDNodeOrder);
DAG.setRoot(DAG.getLabel(ISD::EH_LABEL, getCurDebugLoc(),
getRoot(), EndLabel));
// Inform MachineModuleInfo of range.
MMI->addInvoke(LandingPad, BeginLabel, EndLabel);
@ -5118,11 +5105,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
I.getType() == I.getOperand(2)->getType()) {
SDValue LHS = getValue(I.getOperand(1));
SDValue RHS = getValue(I.getOperand(2));
SDValue Res = DAG.getNode(ISD::FCOPYSIGN, getCurDebugLoc(),
LHS.getValueType(), LHS, RHS);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
setValue(&I, DAG.getNode(ISD::FCOPYSIGN, getCurDebugLoc(),
LHS.getValueType(), LHS, RHS));
return;
}
} else if (Name == "fabs" || Name == "fabsf" || Name == "fabsl") {
@ -5130,11 +5114,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
I.getOperand(1)->getType()->isFloatingPoint() &&
I.getType() == I.getOperand(1)->getType()) {
SDValue Tmp = getValue(I.getOperand(1));
SDValue Res = DAG.getNode(ISD::FABS, getCurDebugLoc(),
Tmp.getValueType(), Tmp);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
setValue(&I, DAG.getNode(ISD::FABS, getCurDebugLoc(),
Tmp.getValueType(), Tmp));
return;
}
} else if (Name == "sin" || Name == "sinf" || Name == "sinl") {
@ -5143,11 +5124,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
I.getType() == I.getOperand(1)->getType() &&
I.onlyReadsMemory()) {
SDValue Tmp = getValue(I.getOperand(1));
SDValue Res = DAG.getNode(ISD::FSIN, getCurDebugLoc(),
Tmp.getValueType(), Tmp);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
setValue(&I, DAG.getNode(ISD::FSIN, getCurDebugLoc(),
Tmp.getValueType(), Tmp));
return;
}
} else if (Name == "cos" || Name == "cosf" || Name == "cosl") {
@ -5156,11 +5134,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
I.getType() == I.getOperand(1)->getType() &&
I.onlyReadsMemory()) {
SDValue Tmp = getValue(I.getOperand(1));
SDValue Res = DAG.getNode(ISD::FCOS, getCurDebugLoc(),
Tmp.getValueType(), Tmp);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
setValue(&I, DAG.getNode(ISD::FCOS, getCurDebugLoc(),
Tmp.getValueType(), Tmp));
return;
}
} else if (Name == "sqrt" || Name == "sqrtf" || Name == "sqrtl") {
@ -5169,11 +5144,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
I.getType() == I.getOperand(1)->getType() &&
I.onlyReadsMemory()) {
SDValue Tmp = getValue(I.getOperand(1));
SDValue Res = DAG.getNode(ISD::FSQRT, getCurDebugLoc(),
Tmp.getValueType(), Tmp);
setValue(&I, Res);
if (DisableScheduling)
DAG.AssignOrdering(Res.getNode(), SDNodeOrder);
setValue(&I, DAG.getNode(ISD::FSQRT, getCurDebugLoc(),
Tmp.getValueType(), Tmp));
return;
}
}
@ -5189,12 +5161,8 @@ void SelectionDAGBuilder::visitCall(CallInst &I) {
else
Callee = DAG.getExternalSymbol(RenameFn, TLI.getPointerTy());
if (DisableScheduling)
DAG.AssignOrdering(Callee.getNode(), SDNodeOrder);
// Check if we can potentially perform a tail call. More detailed
// checking is be done within LowerCallTo, after more information
// about the call is known.
// Check if we can potentially perform a tail call. More detailed checking is
// be done within LowerCallTo, after more information about the call is known.
bool isTailCall = PerformTailCallOpt && I.isTailCall();
LowerCallTo(&I, Callee, isTailCall);