#include "MSP430ISelLowering.h"#include "MSP430.h"#include "MSP430MachineFunctionInfo.h"#include "MSP430Subtarget.h"#include "MSP430TargetMachine.h"#include "llvm/CodeGen/CallingConvLower.h"#include "llvm/CodeGen/MachineFrameInfo.h"#include "llvm/CodeGen/MachineFunction.h"#include "llvm/CodeGen/MachineInstrBuilder.h"#include "llvm/CodeGen/MachineRegisterInfo.h"#include "llvm/CodeGen/SelectionDAGISel.h"#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"#include "llvm/CodeGen/ValueTypes.h"#include "llvm/IR/CallingConv.h"#include "llvm/IR/DerivedTypes.h"#include "llvm/IR/Function.h"#include "llvm/IR/GlobalAlias.h"#include "llvm/IR/GlobalVariable.h"#include "llvm/IR/Intrinsics.h"#include "llvm/Support/CommandLine.h"#include "llvm/Support/Debug.h"#include "llvm/Support/ErrorHandling.h"#include "llvm/Support/raw_ostream.h"#include "MSP430GenCallingConv.inc"
Go to the source code of this file.
Macros | |
| #define | DEBUG_TYPE "msp430-lower" |
Functions | |
| template<typename ArgT > | |
| static void | ParseFunctionArgs (const SmallVectorImpl< ArgT > &Args, SmallVectorImpl< unsigned > &Out) |
| For each argument in a function store the number of pieces it is composed of. More... | |
| static void | AnalyzeVarArgs (CCState &State, const SmallVectorImpl< ISD::OutputArg > &Outs) |
| static void | AnalyzeVarArgs (CCState &State, const SmallVectorImpl< ISD::InputArg > &Ins) |
| template<typename ArgT > | |
| static void | AnalyzeArguments (CCState &State, SmallVectorImpl< CCValAssign > &ArgLocs, const SmallVectorImpl< ArgT > &Args) |
| Analyze incoming and outgoing function arguments. More... | |
| static void | AnalyzeRetResult (CCState &State, const SmallVectorImpl< ISD::InputArg > &Ins) |
| static void | AnalyzeRetResult (CCState &State, const SmallVectorImpl< ISD::OutputArg > &Outs) |
| template<typename ArgT > | |
| static void | AnalyzeReturnValues (CCState &State, SmallVectorImpl< CCValAssign > &RVLocs, const SmallVectorImpl< ArgT > &Args) |
| static SDValue | EmitCMP (SDValue &LHS, SDValue &RHS, SDValue &TargetCC, ISD::CondCode CC, const SDLoc &dl, SelectionDAG &DAG) |
Macro Definition Documentation
◆ DEBUG_TYPE
| #define DEBUG_TYPE "msp430-lower" |
Definition at line 39 of file MSP430ISelLowering.cpp.
Function Documentation
◆ AnalyzeArguments()
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Analyze incoming and outgoing function arguments.
We need custom C++ code to handle special constraints in the ABI like reversing the order of the pieces of splitted arguments. In addition, all pieces of a certain argument have to be passed either using registers or the stack but never mixing both.
Definition at line 438 of file MSP430ISelLowering.cpp.
References llvm::CCState::addLoc(), llvm::CCValAssign::AExt, llvm::CCState::AllocateReg(), AnalyzeVarArgs(), llvm::array_lengthof(), assert(), llvm::CCValAssign::Full, llvm::CCState::getCallingConv(), llvm::CCValAssign::getReg(), llvm::CCState::HandleByVal(), llvm::MVT::i16, llvm::MVT::i8, llvm::ISD::ArgFlagsTy::isByVal(), llvm::ISD::ArgFlagsTy::isSExt(), llvm::CCState::isVarArg(), llvm::ISD::ArgFlagsTy::isZExt(), llvm::CallingConv::MSP430_BUILTIN, ParseFunctionArgs(), Reg, llvm::CCValAssign::SExt, llvm::SmallVectorBase::size(), and llvm::CCValAssign::ZExt.
Referenced by llvm::CCState::AnalyzeArgumentsSecondPass(), and AnalyzeReturnValues().
◆ AnalyzeRetResult() [1/2]
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Definition at line 532 of file MSP430ISelLowering.cpp.
References llvm::CCState::AnalyzeCallResult().
Referenced by AnalyzeReturnValues().
◆ AnalyzeRetResult() [2/2]
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Definition at line 537 of file MSP430ISelLowering.cpp.
References llvm::CCState::AnalyzeReturn().
◆ AnalyzeReturnValues()
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Definition at line 543 of file MSP430ISelLowering.cpp.
References llvm::ISD::ADD, llvm::MachineRegisterInfo::addLiveIn(), llvm::CCValAssign::AExt, AnalyzeArguments(), AnalyzeRetResult(), llvm::ISD::ANY_EXTEND, Arg, assert(), llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::CallingConv::C, llvm::MSP430ISD::CALL, llvm::TargetLowering::CallLoweringInfo::CallConv, Callee, llvm::TargetLowering::CallLoweringInfo::Callee, llvm::TargetLowering::CallLoweringInfo::Chain, llvm::CCState::CheckReturn(), Context, llvm::MachineFrameInfo::CreateFixedObject(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::TargetLowering::CallLoweringInfo::DAG, llvm::TargetLowering::CallLoweringInfo::DL, E, llvm::SmallVectorBase::empty(), llvm::errs(), llvm::CallingConv::Fast, first, llvm::CCValAssign::Full, G, llvm::ISD::ArgFlagsTy::getByValAlign(), llvm::ISD::ArgFlagsTy::getByValSize(), llvm::SelectionDAG::getCALLSEQ_END(), llvm::SelectionDAG::getCALLSEQ_START(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getCopyFromReg(), llvm::SelectionDAG::getCopyToReg(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getEntryNode(), llvm::EVT::getEVTString(), llvm::MachinePointerInfo::getFixedStack(), llvm::SelectionDAG::getFrameIndex(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), llvm::SelectionDAG::getIntPtrConstant(), llvm::SelectionDAG::getLoad(), llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocMemOffset(), llvm::CCValAssign::getLocReg(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getMachineFunction(), llvm::SelectionDAG::getMemcpy(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::TargetLoweringBase::getPointerTy(), llvm::TargetLoweringBase::getRegClassFor(), llvm::MachineFunction::getRegInfo(), llvm::SelectionDAG::getRegister(), llvm::EVT::getSimpleVT(), llvm::MVT::getSizeInBits(), llvm::MSP430MachineFunctionInfo::getSRetReturnReg(), llvm::SelectionDAG::getStore(), llvm::SelectionDAG::getTargetExternalSymbol(), llvm::SelectionDAG::getTargetGlobalAddress(), llvm::SDValue::getValue(), llvm::SelectionDAG::getValueType(), llvm::CCValAssign::getValVT(), llvm::SelectionDAG::getVTList(), llvm::MVT::Glue, llvm::Function::hasStructRetAttr(), llvm::MVT::i16, llvm::MipsISD::Ins, llvm::TargetLowering::CallLoweringInfo::Ins, llvm::ISD::ArgFlagsTy::isByVal(), llvm::CCValAssign::isMemLoc(), llvm::CCValAssign::isRegLoc(), llvm::TargetLowering::CallLoweringInfo::IsTailCall, llvm::TargetLowering::CallLoweringInfo::IsVarArg, llvm_unreachable, llvm::CallingConv::MSP430_BUILTIN, llvm::CallingConv::MSP430_INTR, llvm::MVT::Other, llvm::TargetLowering::CallLoweringInfo::Outs, llvm::TargetLowering::CallLoweringInfo::OutVals, llvm::SmallVectorTemplateBase< T >::push_back(), Reg, llvm::report_fatal_error(), llvm::MSP430ISD::RET_FLAG, llvm::MSP430ISD::RETI_FLAG, second, llvm::MSP430MachineFunctionInfo::setSRetReturnReg(), llvm::MSP430MachineFunctionInfo::setVarArgsFrameIndex(), llvm::CCValAssign::SExt, llvm::ISD::SIGN_EXTEND, llvm::MVT::SimpleTy, llvm::SmallVectorBase::size(), llvm::ISD::TokenFactor, llvm::ISD::TRUNCATE, llvm::ISD::ZERO_EXTEND, and llvm::CCValAssign::ZExt.
◆ AnalyzeVarArgs() [1/2]
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Definition at line 423 of file MSP430ISelLowering.cpp.
References llvm::CCState::AnalyzeCallOperands().
Referenced by AnalyzeArguments().
◆ AnalyzeVarArgs() [2/2]
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Definition at line 428 of file MSP430ISelLowering.cpp.
References llvm::CCState::AnalyzeFormalArguments().
◆ EmitCMP()
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Definition at line 1025 of file MSP430ISelLowering.cpp.
References assert(), C, llvm::MSP430ISD::CMP, MSP430CC::COND_E, MSP430CC::COND_GE, MSP430CC::COND_HS, MSP430CC::COND_INVALID, MSP430CC::COND_L, MSP430CC::COND_LO, MSP430CC::COND_NE, llvm::ISD::Constant, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getValueType(), llvm::MVT::Glue, llvm::MVT::i8, llvm::EVT::isFloatingPoint(), LLVM_FALLTHROUGH, llvm_unreachable, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SETULE, llvm::ISD::SETULT, and std::swap().
Referenced by llvm::MSP430TargetLowering::LowerBR_CC(), llvm::MSP430TargetLowering::LowerSELECT_CC(), and llvm::MSP430TargetLowering::LowerSETCC().
◆ ParseFunctionArgs()
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For each argument in a function store the number of pieces it is composed of.
Definition at line 403 of file MSP430ISelLowering.cpp.
References Arg, llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::SmallVectorBase::empty(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().
Referenced by AnalyzeArguments().
