#include "Target/X86/X86CallLowering.h"
Public Member Functions | |
| X86CallLowering (const X86TargetLowering &TLI) | |
| bool | lowerReturn (MachineIRBuilder &MIRBuilder, const Value *Val, ArrayRef< unsigned > VRegs) const override |
This hook must be implemented to lower outgoing return values, described by Val, into the specified virtual registers VRegs. More... | |
| bool | lowerFormalArguments (MachineIRBuilder &MIRBuilder, const Function &F, ArrayRef< unsigned > VRegs) const override |
This hook must be implemented to lower the incoming (formal) arguments, described by Args, for GlobalISel. More... | |
| bool | lowerCall (MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv, const MachineOperand &Callee, const ArgInfo &OrigRet, ArrayRef< ArgInfo > OrigArgs) const override |
| This hook must be implemented to lower the given call instruction, including argument and return value marshalling. More... | |
 Public Member Functions inherited from llvm::CallLowering | |
| CallLowering (const TargetLowering *TLI) | |
| virtual | ~CallLowering ()=default |
| bool | lowerCall (MachineIRBuilder &MIRBuilder, ImmutableCallSite CS, unsigned ResReg, ArrayRef< unsigned > ArgRegs, std::function< unsigned()> GetCalleeReg) const |
| Lower the given call instruction, including argument and return value marshalling. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from llvm::CallLowering | |
| const TargetLowering * | getTLI () const |
| Getter for generic TargetLowering class. More... | |
| template<class XXXTargetLowering > | |
| const XXXTargetLowering * | getTLI () const |
| Getter for target specific TargetLowering class. More... | |
| template<typename FuncInfoTy > | |
| void | setArgFlags (ArgInfo &Arg, unsigned OpIdx, const DataLayout &DL, const FuncInfoTy &FuncInfo) const |
| bool | handleAssignments (MachineIRBuilder &MIRBuilder, ArrayRef< ArgInfo > Args, ValueHandler &Handler) const |
Invoke Handler::assignArg on each of the given Args and then use Callback to move them to the assigned locations. More... | |
Detailed Description
Definition at line 28 of file X86CallLowering.h.
Constructor & Destructor Documentation
◆ X86CallLowering()
| X86CallLowering::X86CallLowering | ( | const X86TargetLowering & | TLI | ) |
Definition at line 53 of file X86CallLowering.cpp.
References llvm::MachineInstrBuilder::addUse(), assert(), llvm::MachineIRBuilder::buildAnyExt(), llvm::MachineIRBuilder::buildConstant(), llvm::MachineIRBuilder::buildCopy(), llvm::MachineIRBuilder::buildGEP(), llvm::MachineIRBuilder::buildStore(), llvm::ComputeValueVTs(), Context, llvm::MachineRegisterInfo::createGenericVirtualRegister(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::CallLowering::ArgInfo::Flags, llvm::Type::getContext(), llvm::MachineFunction::getDataLayout(), llvm::CCState::getFirstUnallocated(), llvm::getLLTForType(), llvm::CCValAssign::getLocVT(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineIRBuilder::getMF(), llvm::CCState::getNextStackOffset(), llvm::TargetLoweringBase::getNumRegisters(), llvm::MachineInstr::getOperand(), llvm::DataLayout::getPointerSizeInBits(), llvm::MachineOperand::getReg(), llvm::TargetLoweringBase::getRegisterType(), llvm::TargetRegisterInfo::getRegSizeInBits(), llvm::MVT::getSizeInBits(), llvm::MachinePointerInfo::getStack(), llvm::MVT::getStoreSize(), llvm::MachineFunction::getSubtarget(), llvm::MachineRegisterInfo::getTargetRegisterInfo(), llvm::EVT::getTypeForEVT(), llvm::CCValAssign::getValVT(), llvm::RegState::Implicit, Info, llvm::CallLowering::ArgInfo::IsFixed, llvm::Type::isVoidTy(), llvm::MachineMemOperand::MOStore, MRI, llvm::LLT::pointer(), llvm::SmallVectorTemplateBase< T >::push_back(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::CallLowering::ArgInfo::Reg, llvm::LLT::scalar(), Size, and llvm::CallLowering::ArgInfo::Ty.
Member Function Documentation
◆ lowerCall()
|
overridevirtual |
This hook must be implemented to lower the given call instruction, including argument and return value marshalling.
CallConv is the calling convention to be used for the call.
Callee is the destination of the call. It should be either a register, globaladdress, or externalsymbol.
ResTy is the type returned by the function
ResReg is the generic virtual register that the returned value should be lowered into.
ArgTys is a list of the types each member of ArgRegs has; used by the target to decide which register/stack slot should be allocated.
ArgRegs is a list of virtual registers containing each argument that needs to be passed.
- Returns
- true if the lowering succeeded, false otherwise.
Reimplemented from llvm::CallLowering.
Definition at line 374 of file X86CallLowering.cpp.
References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addDef(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addRegMask(), llvm::MachineInstrBuilder::addUse(), llvm::AArch64CC::AL, llvm::SmallVectorImpl< T >::assign(), llvm::ArrayRef< T >::begin(), llvm::MachineIRBuilder::buildInstr(), llvm::MachineIRBuilder::buildInstrNoInsert(), llvm::MachineIRBuilder::buildMerge(), llvm::MachineIRBuilder::buildUnmerge(), llvm::CallingConv::C, llvm::SmallVectorImpl< T >::clear(), llvm::constrainOperandRegClass(), llvm::SmallVectorBase::empty(), llvm::ArrayRef< T >::end(), F(), llvm::CallLowering::ArgInfo::Flags, llvm::Module::getDataLayout(), llvm::MachineFunction::getFunction(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::X86Subtarget::getInstrInfo(), llvm::MachineIRBuilder::getMF(), llvm::MachineInstr::getOperand(), llvm::GlobalValue::getParent(), llvm::TargetSubtargetInfo::getRegBankInfo(), llvm::MachineFunction::getRegInfo(), llvm::X86Subtarget::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), llvm::CallLowering::handleAssignments(), llvm::RegState::Implicit, llvm::MachineIRBuilder::insertInstr(), llvm::X86Subtarget::is64Bit(), llvm::ISD::ArgFlagsTy::isByVal(), llvm::X86Subtarget::isCallingConvWin64(), llvm::MachineOperand::isReg(), llvm::X86Subtarget::isTargetLinux(), llvm::CallLowering::ArgInfo::Reg, llvm::MachineOperand::setReg(), TII, TRI, true, and llvm::CallingConv::X86_64_SysV.
◆ lowerFormalArguments()
|
overridevirtual |
This hook must be implemented to lower the incoming (formal) arguments, described by Args, for GlobalISel.
Each argument must end up in the related virtual register described by VRegs. In other words, the first argument should end up in VRegs[0], the second in VRegs[1], and so on. MIRBuilder is set to the proper insertion for the argument lowering.
- Returns
- True if the lowering succeeded, false otherwise.
Reimplemented from llvm::CallLowering.
Definition at line 323 of file X86CallLowering.cpp.
References Arg, llvm::Function::arg_empty(), llvm::Function::args(), llvm::MachineBasicBlock::begin(), llvm::MachineIRBuilder::buildMerge(), llvm::Attribute::ByVal, llvm::MachineBasicBlock::empty(), llvm::AttributeList::FirstArgIndex, llvm::MachineFunction::getDataLayout(), llvm::MachineIRBuilder::getMBB(), llvm::MachineIRBuilder::getMF(), llvm::MachineFunction::getRegInfo(), llvm::Value::getType(), llvm::CallLowering::handleAssignments(), llvm::Attribute::InReg, llvm::Function::isVarArg(), llvm::Attribute::Nest, llvm::CallLowering::setArgFlags(), llvm::MachineIRBuilder::setInstr(), llvm::MachineIRBuilder::setMBB(), llvm::Attribute::StructRet, llvm::Attribute::SwiftError, and llvm::Attribute::SwiftSelf.
◆ lowerReturn()
|
overridevirtual |
This hook must be implemented to lower outgoing return values, described by Val, into the specified virtual registers VRegs.
This hook is used by GlobalISel.
- Returns
- True if the lowering succeeds, false otherwise.
Reimplemented from llvm::CallLowering.
Definition at line 186 of file X86CallLowering.cpp.
References llvm::MachineInstrBuilder::addDef(), llvm::MachineInstrBuilder::addImm(), llvm::MachineBasicBlock::addLiveIn(), assert(), llvm::MachineIRBuilder::buildCopy(), llvm::MachineIRBuilder::buildFrameIndex(), llvm::MachineIRBuilder::buildInstrNoInsert(), llvm::MachineIRBuilder::buildLoad(), llvm::MachineIRBuilder::buildTrunc(), llvm::MachineIRBuilder::buildUnmerge(), llvm::ComputeValueVTs(), llvm::MachineFrameInfo::CreateFixedObject(), llvm::MachineRegisterInfo::createGenericVirtualRegister(), llvm::ArrayRef< T >::empty(), F(), llvm::Type::getContext(), llvm::MachineFunction::getDataLayout(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocVT(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineIRBuilder::getMBB(), llvm::MachineIRBuilder::getMF(), llvm::DataLayout::getPointerSizeInBits(), llvm::MachineFunction::getRegInfo(), llvm::TargetRegisterInfo::getRegSizeInBits(), llvm::MVT::getSizeInBits(), llvm::MachineRegisterInfo::getTargetRegisterInfo(), llvm::Value::getType(), llvm::CCValAssign::getValVT(), llvm::CallLowering::handleAssignments(), llvm::RegState::Implicit, llvm::MachineIRBuilder::insertInstr(), llvm::MachineMemOperand::MOInvariant, llvm::MachineMemOperand::MOLoad, llvm::LLT::pointer(), llvm::ARCISD::RET, llvm::AttributeList::ReturnIndex, llvm::LLT::scalar(), llvm::CallLowering::setArgFlags(), Size, and llvm::ArrayRef< T >::size().
The documentation for this class was generated from the following files:
- lib/Target/X86/X86CallLowering.h
- lib/Target/X86/X86CallLowering.cpp
