| //===-- llvm/CodeGen/SparcInstrSelectionSupport.h ---------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // TODO: Need a description here. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SPARC_INSTR_SELECTION_SUPPORT_h |
| #define SPARC_INSTR_SELECTION_SUPPORT_h |
| |
| #include "llvm/DerivedTypes.h" |
| #include "SparcInternals.h" |
| |
| namespace llvm { |
| |
| // Choose load instruction opcode based on type of value |
| inline MachineOpCode |
| ChooseLoadInstruction(const Type *DestTy) |
| { |
| switch (DestTy->getPrimitiveID()) { |
| case Type::BoolTyID: |
| case Type::UByteTyID: return V9::LDUBr; |
| case Type::SByteTyID: return V9::LDSBr; |
| case Type::UShortTyID: return V9::LDUHr; |
| case Type::ShortTyID: return V9::LDSHr; |
| case Type::UIntTyID: return V9::LDUWr; |
| case Type::IntTyID: return V9::LDSWr; |
| case Type::PointerTyID: |
| case Type::ULongTyID: |
| case Type::LongTyID: return V9::LDXr; |
| case Type::FloatTyID: return V9::LDFr; |
| case Type::DoubleTyID: return V9::LDDFr; |
| default: assert(0 && "Invalid type for Load instruction"); |
| } |
| |
| return 0; |
| } |
| |
| // Choose store instruction opcode based on type of value |
| inline MachineOpCode |
| ChooseStoreInstruction(const Type *DestTy) |
| { |
| switch (DestTy->getPrimitiveID()) { |
| case Type::BoolTyID: |
| case Type::UByteTyID: |
| case Type::SByteTyID: return V9::STBr; |
| case Type::UShortTyID: |
| case Type::ShortTyID: return V9::STHr; |
| case Type::UIntTyID: |
| case Type::IntTyID: return V9::STWr; |
| case Type::PointerTyID: |
| case Type::ULongTyID: |
| case Type::LongTyID: return V9::STXr; |
| case Type::FloatTyID: return V9::STFr; |
| case Type::DoubleTyID: return V9::STDFr; |
| default: assert(0 && "Invalid type for Store instruction"); |
| } |
| |
| return 0; |
| } |
| |
| |
| inline MachineOpCode |
| ChooseAddInstructionByType(const Type* resultType) |
| { |
| MachineOpCode opCode = V9::INVALID_OPCODE; |
| |
| if (resultType->isIntegral() || |
| isa<PointerType>(resultType) || |
| isa<FunctionType>(resultType) || |
| resultType == Type::LabelTy) |
| { |
| opCode = V9::ADDr; |
| } |
| else |
| switch(resultType->getPrimitiveID()) |
| { |
| case Type::FloatTyID: opCode = V9::FADDS; break; |
| case Type::DoubleTyID: opCode = V9::FADDD; break; |
| default: assert(0 && "Invalid type for ADD instruction"); break; |
| } |
| |
| return opCode; |
| } |
| |
| |
| // Because the Sparc instruction selector likes to re-write operands to |
| // instructions, making them change from a Value* (virtual register) to a |
| // Constant* (making an immediate field), we need to change the opcode from a |
| // register-based instruction to an immediate-based instruction, hence this |
| // mapping. |
| static unsigned |
| convertOpcodeFromRegToImm(unsigned Opcode) { |
| switch (Opcode) { |
| /* arithmetic */ |
| case V9::ADDr: return V9::ADDi; |
| case V9::ADDccr: return V9::ADDcci; |
| case V9::ADDCr: return V9::ADDCi; |
| case V9::ADDCccr: return V9::ADDCcci; |
| case V9::SUBr: return V9::SUBi; |
| case V9::SUBccr: return V9::SUBcci; |
| case V9::SUBCr: return V9::SUBCi; |
| case V9::SUBCccr: return V9::SUBCcci; |
| case V9::MULXr: return V9::MULXi; |
| case V9::SDIVXr: return V9::SDIVXi; |
| case V9::UDIVXr: return V9::UDIVXi; |
| |
| /* logical */ |
| case V9::ANDr: return V9::ANDi; |
| case V9::ANDccr: return V9::ANDcci; |
| case V9::ANDNr: return V9::ANDNi; |
| case V9::ANDNccr: return V9::ANDNcci; |
| case V9::ORr: return V9::ORi; |
| case V9::ORccr: return V9::ORcci; |
| case V9::ORNr: return V9::ORNi; |
| case V9::ORNccr: return V9::ORNcci; |
| case V9::XORr: return V9::XORi; |
| case V9::XORccr: return V9::XORcci; |
| case V9::XNORr: return V9::XNORi; |
| case V9::XNORccr: return V9::XNORcci; |
| |
| /* shift */ |
| case V9::SLLr5: return V9::SLLi5; |
| case V9::SRLr5: return V9::SRLi5; |
| case V9::SRAr5: return V9::SRAi5; |
| case V9::SLLXr6: return V9::SLLXi6; |
| case V9::SRLXr6: return V9::SRLXi6; |
| case V9::SRAXr6: return V9::SRAXi6; |
| |
| /* Conditional move on int comparison with zero */ |
| case V9::MOVRZr: return V9::MOVRZi; |
| case V9::MOVRLEZr: return V9::MOVRLEZi; |
| case V9::MOVRLZr: return V9::MOVRLZi; |
| case V9::MOVRNZr: return V9::MOVRNZi; |
| case V9::MOVRGZr: return V9::MOVRGZi; |
| case V9::MOVRGEZr: return V9::MOVRGEZi; |
| |
| |
| /* Conditional move on int condition code */ |
| case V9::MOVAr: return V9::MOVAi; |
| case V9::MOVNr: return V9::MOVNi; |
| case V9::MOVNEr: return V9::MOVNEi; |
| case V9::MOVEr: return V9::MOVEi; |
| case V9::MOVGr: return V9::MOVGi; |
| case V9::MOVLEr: return V9::MOVLEi; |
| case V9::MOVGEr: return V9::MOVGEi; |
| case V9::MOVLr: return V9::MOVLi; |
| case V9::MOVGUr: return V9::MOVGUi; |
| case V9::MOVLEUr: return V9::MOVLEUi; |
| case V9::MOVCCr: return V9::MOVCCi; |
| case V9::MOVCSr: return V9::MOVCSi; |
| case V9::MOVPOSr: return V9::MOVPOSi; |
| case V9::MOVNEGr: return V9::MOVNEGi; |
| case V9::MOVVCr: return V9::MOVVCi; |
| case V9::MOVVSr: return V9::MOVVSi; |
| |
| /* Conditional move of int reg on fp condition code */ |
| case V9::MOVFAr: return V9::MOVFAi; |
| case V9::MOVFNr: return V9::MOVFNi; |
| case V9::MOVFUr: return V9::MOVFUi; |
| case V9::MOVFGr: return V9::MOVFGi; |
| case V9::MOVFUGr: return V9::MOVFUGi; |
| case V9::MOVFLr: return V9::MOVFLi; |
| case V9::MOVFULr: return V9::MOVFULi; |
| case V9::MOVFLGr: return V9::MOVFLGi; |
| case V9::MOVFNEr: return V9::MOVFNEi; |
| case V9::MOVFEr: return V9::MOVFEi; |
| case V9::MOVFUEr: return V9::MOVFUEi; |
| case V9::MOVFGEr: return V9::MOVFGEi; |
| case V9::MOVFUGEr: return V9::MOVFUGEi; |
| case V9::MOVFLEr: return V9::MOVFLEi; |
| case V9::MOVFULEr: return V9::MOVFULEi; |
| case V9::MOVFOr: return V9::MOVFOi; |
| |
| /* load */ |
| case V9::LDSBr: return V9::LDSBi; |
| case V9::LDSHr: return V9::LDSHi; |
| case V9::LDSWr: return V9::LDSWi; |
| case V9::LDUBr: return V9::LDUBi; |
| case V9::LDUHr: return V9::LDUHi; |
| case V9::LDUWr: return V9::LDUWi; |
| case V9::LDXr: return V9::LDXi; |
| case V9::LDFr: return V9::LDFi; |
| case V9::LDDFr: return V9::LDDFi; |
| case V9::LDQFr: return V9::LDQFi; |
| case V9::LDFSRr: return V9::LDFSRi; |
| case V9::LDXFSRr: return V9::LDXFSRi; |
| |
| /* store */ |
| case V9::STBr: return V9::STBi; |
| case V9::STHr: return V9::STHi; |
| case V9::STWr: return V9::STWi; |
| case V9::STXr: return V9::STXi; |
| case V9::STFr: return V9::STFi; |
| case V9::STDFr: return V9::STDFi; |
| case V9::STFSRr: return V9::STFSRi; |
| case V9::STXFSRr: return V9::STXFSRi; |
| |
| /* jump & return */ |
| case V9::JMPLCALLr: return V9::JMPLCALLi; |
| case V9::JMPLRETr: return V9::JMPLRETi; |
| case V9::RETURNr: return V9::RETURNi; |
| |
| /* save and restore */ |
| case V9::SAVEr: return V9::SAVEi; |
| case V9::RESTOREr: return V9::RESTOREi; |
| |
| default: |
| // It's already in correct format |
| // Or, it's just not handled yet, but an assert() would break LLC |
| #if 0 |
| std::cerr << "Unhandled opcode in convertOpcodeFromRegToImm(): " << Opcode |
| << "\n"; |
| #endif |
| return Opcode; |
| } |
| } |
| |
| } // End llvm namespace |
| |
| #endif |