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Change interface for TargetLowering::LowerCallTo and TargetLowering::LowerCall

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to pass around a struct instead of a large set of individual values.  This
cleans up the interface and allows more information to be added to the struct
for future targets without requiring changes to each and every target.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157479 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Holewinski
2012-05-25 16:35:28 +00:00
parent f755e0001a
commit d2ea0e10cb
30 changed files with 343 additions and 290 deletions
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38
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -1800,11 +1800,13 @@ SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node,
if (isTailCall)
InChain = TCChain;
std::pair<SDValue, SDValue> CallInfo =
TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
TargetLowering::
CallLoweringInfo CLI(InChain, RetTy, isSigned, !isSigned, false, false,
0, TLI.getLibcallCallingConv(LC), isTailCall,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
Callee, Args, DAG, Node->getDebugLoc());
std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI);
if (!CallInfo.second.getNode())
// It's a tailcall, return the chain (which is the DAG root).
@@ -1833,11 +1835,13 @@ SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, EVT RetVT,
TLI.getPointerTy());
Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext());
std::pair<SDValue,SDValue> CallInfo =
TLI.LowerCallTo(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
false, 0, TLI.getLibcallCallingConv(LC), /*isTailCall=*/false,
TargetLowering::
CallLoweringInfo CLI(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
false, 0, TLI.getLibcallCallingConv(LC),
/*isTailCall=*/false,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
Callee, Args, DAG, dl);
std::pair<SDValue,SDValue> CallInfo = TLI.LowerCallTo(CLI);
return CallInfo.first;
}
@@ -1865,11 +1869,12 @@ SelectionDAGLegalize::ExpandChainLibCall(RTLIB::Libcall LC,
TLI.getPointerTy());
Type *RetTy = Node->getValueType(0).getTypeForEVT(*DAG.getContext());
std::pair<SDValue, SDValue> CallInfo =
TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
TargetLowering::
CallLoweringInfo CLI(InChain, RetTy, isSigned, !isSigned, false, false,
0, TLI.getLibcallCallingConv(LC), /*isTailCall=*/false,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
Callee, Args, DAG, Node->getDebugLoc());
std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI);
return CallInfo;
}
@@ -1997,11 +2002,12 @@ SelectionDAGLegalize::ExpandDivRemLibCall(SDNode *Node,
TLI.getPointerTy());
DebugLoc dl = Node->getDebugLoc();
std::pair<SDValue, SDValue> CallInfo =
TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
TargetLowering::
CallLoweringInfo CLI(InChain, RetTy, isSigned, !isSigned, false, false,
0, TLI.getLibcallCallingConv(LC), /*isTailCall=*/false,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
Callee, Args, DAG, dl);
std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI);
// Remainder is loaded back from the stack frame.
SDValue Rem = DAG.getLoad(RetVT, dl, CallInfo.second, FIPtr,
@@ -2575,14 +2581,17 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node) {
// If the target didn't lower this, lower it to '__sync_synchronize()' call
// FIXME: handle "fence singlethread" more efficiently.
TargetLowering::ArgListTy Args;
std::pair<SDValue, SDValue> CallResult =
TLI.LowerCallTo(Node->getOperand(0), Type::getVoidTy(*DAG.getContext()),
TargetLowering::
CallLoweringInfo CLI(Node->getOperand(0),
Type::getVoidTy(*DAG.getContext()),
false, false, false, false, 0, CallingConv::C,
/*isTailCall=*/false,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
DAG.getExternalSymbol("__sync_synchronize",
TLI.getPointerTy()),
Args, DAG, dl);
std::pair<SDValue, SDValue> CallResult = TLI.LowerCallTo(CLI);
Results.push_back(CallResult.second);
break;
}
@@ -2652,13 +2661,16 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node) {
case ISD::TRAP: {
// If this operation is not supported, lower it to 'abort()' call
TargetLowering::ArgListTy Args;
std::pair<SDValue, SDValue> CallResult =
TLI.LowerCallTo(Node->getOperand(0), Type::getVoidTy(*DAG.getContext()),
TargetLowering::
CallLoweringInfo CLI(Node->getOperand(0),
Type::getVoidTy(*DAG.getContext()),
false, false, false, false, 0, CallingConv::C,
/*isTailCall=*/false,
/*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
DAG.getExternalSymbol("abort", TLI.getPointerTy()),
Args, DAG, dl);
std::pair<SDValue, SDValue> CallResult = TLI.LowerCallTo(CLI);
Results.push_back(CallResult.second);
break;
}