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https://github.com/c64scene-ar/llvm-6502.git
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Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45898 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1027,23 +1027,21 @@ static bool IsPossiblyOverwrittenArgumentOfTailCall(SDOperand Op) {
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return false;
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}
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// GetMemCpyWithFlags - Create a MemCpy using function's parameter flag.
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// CreateCopyOfByValArgument - Make a copy of an aggregate at address specified
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// by "Src" to address "Dst" with size and alignment information specified by
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// the specific parameter attribute. The copy will be passed as a byval function
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// parameter.
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static SDOperand
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GetMemCpyWithFlags(SelectionDAG &DAG, unsigned Flags, SDOperand From,
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SDOperand To, SDOperand Chain) {
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unsigned Align = 1 << ((Flags & ISD::ParamFlags::ByValAlign) >>
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ISD::ParamFlags::ByValAlignOffs);
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unsigned Size = (Flags & ISD::ParamFlags::ByValSize) >>
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CreateCopyOfByValArgument(SDOperand Src, SDOperand Dst, SDOperand Chain,
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unsigned Flags, SelectionDAG &DAG) {
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unsigned Align = 1 <<
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((Flags & ISD::ParamFlags::ByValAlign) >> ISD::ParamFlags::ByValAlignOffs);
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unsigned Size = (Flags & ISD::ParamFlags::ByValSize) >>
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ISD::ParamFlags::ByValSizeOffs;
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SDOperand AlignNode = DAG.getConstant(Align, MVT::i32);
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SDOperand SizeNode = DAG.getConstant(Size, MVT::i32);
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SDOperand AlignNode = DAG.getConstant(Align, MVT::i32);
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SDOperand SizeNode = DAG.getConstant(Size, MVT::i32);
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SDOperand AlwaysInline = DAG.getConstant(1, MVT::i32);
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return DAG.getMemcpy(Chain, To, From, SizeNode, AlignNode,
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AlwaysInline);
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return DAG.getMemcpy(Chain, Dst, Src, SizeNode, AlignNode, AlwaysInline);
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}
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SDOperand X86TargetLowering::LowerMemArgument(SDOperand Op, SelectionDAG &DAG,
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@ -1260,10 +1258,9 @@ X86TargetLowering::LowerMemOpCallTo(SDOperand Op, SelectionDAG &DAG,
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SDOperand FlagsOp = Op.getOperand(6+2*VA.getValNo());
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unsigned Flags = cast<ConstantSDNode>(FlagsOp)->getValue();
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if (Flags & ISD::ParamFlags::ByVal) {
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return GetMemCpyWithFlags(DAG, Flags, Arg, PtrOff, Chain);
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} else {
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return DAG.getStore(Chain, Arg, PtrOff, NULL, 0);
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return CreateCopyOfByValArgument(Arg, PtrOff, Chain, Flags, DAG);
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}
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return DAG.getStore(Chain, Arg, PtrOff, NULL, 0);
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}
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SDOperand X86TargetLowering::LowerCALL(SDOperand Op, SelectionDAG &DAG) {
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@ -1438,7 +1435,7 @@ SDOperand X86TargetLowering::LowerCALL(SDOperand Op, SelectionDAG &DAG) {
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FI = MF.getFrameInfo()->CreateFixedObject(OpSize, Offset);
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FIN = DAG.getFrameIndex(FI, MVT::i32);
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SDOperand Source = Arg;
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if (IsPossiblyOverwrittenArgumentOfTailCall(Arg)){
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if (IsPossiblyOverwrittenArgumentOfTailCall(Arg)) {
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// Copy from stack slots to stack slot of a tail called function. This
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// needs to be done because if we would lower the arguments directly
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// to their real stack slot we might end up overwriting each other.
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@ -1452,12 +1449,12 @@ SDOperand X86TargetLowering::LowerCALL(SDOperand Op, SelectionDAG &DAG) {
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}
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if (Flags & ISD::ParamFlags::ByVal) {
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// Copy relative to framepointer.
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MemOpChains2.
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push_back(GetMemCpyWithFlags(DAG, Flags, Source, FIN, Chain));
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// Copy relative to framepointer.
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MemOpChains2.push_back(CreateCopyOfByValArgument(Source, FIN, Chain,
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Flags, DAG));
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} else {
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// Store relative to framepointer.
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MemOpChains2.push_back(DAG.getStore(Chain, Source, FIN, NULL, 0));
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// Store relative to framepointer.
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MemOpChains2.push_back(DAG.getStore(Chain, Source, FIN, NULL, 0));
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}
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}
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}
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