diff options
Diffstat (limited to 'lib/Target/Hexagon/HexagonAsmPrinter.cpp')
| -rw-r--r-- | lib/Target/Hexagon/HexagonAsmPrinter.cpp | 370 |
1 files changed, 54 insertions, 316 deletions
diff --git a/lib/Target/Hexagon/HexagonAsmPrinter.cpp b/lib/Target/Hexagon/HexagonAsmPrinter.cpp index e3ab4f7..39bf45d 100644 --- a/lib/Target/Hexagon/HexagonAsmPrinter.cpp +++ b/lib/Target/Hexagon/HexagonAsmPrinter.cpp @@ -16,25 +16,33 @@ #define DEBUG_TYPE "asm-printer" #include "Hexagon.h" +#include "HexagonAsmPrinter.h" +#include "HexagonMachineFunctionInfo.h" #include "HexagonTargetMachine.h" #include "HexagonSubtarget.h" -#include "HexagonMachineFunctionInfo.h" +#include "InstPrinter/HexagonInstPrinter.h" #include "llvm/Constants.h" #include "llvm/DerivedTypes.h" #include "llvm/Module.h" +#include "llvm/Analysis/ConstantFolding.h" #include "llvm/Assembly/Writer.h" #include "llvm/CodeGen/AsmPrinter.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineInstrBuilder.h" -#include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCInst.h" +#include "llvm/MC/MCSection.h" +#include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSymbol.h" #include "llvm/Support/MathExtras.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/Debug.h" #include "llvm/Support/Compiler.h" +#include "llvm/Support/Format.h" #include "llvm/Support/raw_ostream.h" #include "llvm/Support/TargetRegistry.h" #include "llvm/Target/Mangler.h" @@ -44,6 +52,7 @@ #include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetOptions.h" #include "llvm/ADT/SmallString.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringExtras.h" using namespace llvm; @@ -52,163 +61,9 @@ static cl::opt<bool> AlignCalls( "hexagon-align-calls", cl::Hidden, cl::init(true), cl::desc("Insert falign after call instruction for Hexagon target")); - -namespace { - class HexagonAsmPrinter : public AsmPrinter { - const HexagonSubtarget *Subtarget; - - public: - explicit HexagonAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) - : AsmPrinter(TM, Streamer) { - Subtarget = &TM.getSubtarget<HexagonSubtarget>(); - } - - virtual const char *getPassName() const { - return "Hexagon Assembly Printer"; - } - - /// printInstruction - This method is automatically generated by tablegen - /// from the instruction set description. This method returns true if the - /// machine instruction was sufficiently described to print it, otherwise it - void printInstruction(const MachineInstr *MI, raw_ostream &O); - virtual void EmitInstruction(const MachineInstr *MI); - - void printOp(const MachineOperand &MO, raw_ostream &O); - - /// printRegister - Print register according to target requirements. - /// - void printRegister(const MachineOperand &MO, bool R0AsZero, - raw_ostream &O) { - unsigned RegNo = MO.getReg(); - assert(TargetRegisterInfo::isPhysicalRegister(RegNo) && "Not physreg??"); - O << getRegisterName(RegNo); - } - - void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &OS) { - const MachineOperand &MO = MI->getOperand(OpNo); - if (MO.isReg()) { - printRegister(MO, false, OS); - } else if (MO.isImm()) { - OS << MO.getImm(); - } else { - printOp(MO, OS); - } - } - - - bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const; - - bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, - unsigned AsmVariant, const char *ExtraCode, - raw_ostream &OS); - bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo, - unsigned AsmVariant, const char *ExtraCode, - raw_ostream &OS); - - - void printHexagonImmOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - int value = MI->getOperand(OpNo).getImm(); - O << value; - } - - - void printHexagonNegImmOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - int value = MI->getOperand(OpNo).getImm(); - O << -value; - } - - void printHexagonNOneImmOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) const { - O << -1; - } - - void printHexagonMEMriOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - const MachineOperand &MO1 = MI->getOperand(OpNo); - const MachineOperand &MO2 = MI->getOperand(OpNo+1); - - O << getRegisterName(MO1.getReg()) - << " + #" - << (int) MO2.getImm(); - } - - - void printHexagonFrameIndexOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - const MachineOperand &MO1 = MI->getOperand(OpNo); - const MachineOperand &MO2 = MI->getOperand(OpNo+1); - - O << getRegisterName(MO1.getReg()) - << ", #" - << MO2.getImm(); - } - - void printBranchOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - // Branches can take an immediate operand. This is used by the branch - // selection pass to print $+8, an eight byte displacement from the PC. - if (MI->getOperand(OpNo).isImm()) { - O << "$+" << MI->getOperand(OpNo).getImm()*4; - } else { - printOp(MI->getOperand(OpNo), O); - } - } - - void printCallOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - } - - void printAbsAddrOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O) { - } - - - void printSymbolHi(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) { - O << "#HI("; - if (MI->getOperand(OpNo).isImm()) { - printHexagonImmOperand(MI, OpNo, O); - } else { - printOp(MI->getOperand(OpNo), O); - } - O << ")"; - } - - void printSymbolLo(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) { - O << "#HI("; - if (MI->getOperand(OpNo).isImm()) { - printHexagonImmOperand(MI, OpNo, O); - } else { - printOp(MI->getOperand(OpNo), O); - } - O << ")"; - } - - void printPredicateOperand(const MachineInstr *MI, unsigned OpNo, - raw_ostream &O); - - void printAddrModeBasePlusOffset(const MachineInstr *MI, int OpNo, - raw_ostream &O); - - void printGlobalOperand(const MachineInstr *MI, int OpNo, raw_ostream &O); - void printJumpTable(const MachineInstr *MI, int OpNo, raw_ostream &O); - - void EmitAlignment(unsigned NumBits, const GlobalValue *GV = 0) const; - - static const char *getRegisterName(unsigned RegNo); - }; - -} // end of anonymous namespace - -// Include the auto-generated portion of the assembly writer. -#include "HexagonGenAsmWriter.inc" - - void HexagonAsmPrinter::EmitAlignment(unsigned NumBits, const GlobalValue *GV) const { - - // For basic block level alignment, use falign. + // For basic block level alignment, use ".falign". if (!GV) { OutStreamer.EmitRawText(StringRef("\t.falign")); return; @@ -217,12 +72,19 @@ void HexagonAsmPrinter::EmitAlignment(unsigned NumBits, AsmPrinter::EmitAlignment(NumBits, GV); } -void HexagonAsmPrinter::printOp(const MachineOperand &MO, raw_ostream &O) { +void HexagonAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo, + raw_ostream &O) { + const MachineOperand &MO = MI->getOperand(OpNo); + switch (MO.getType()) { + default: + assert(0 && "<unknown operand type>"); + case MachineOperand::MO_Register: + O << HexagonInstPrinter::getRegisterName(MO.getReg()); + return; case MachineOperand::MO_Immediate: - dbgs() << "printOp() does not handle immediate values\n"; - abort(); - + O << MO.getImm(); + return; case MachineOperand::MO_MachineBasicBlock: O << *MO.getMBB()->getSymbol(); return; @@ -236,20 +98,14 @@ void HexagonAsmPrinter::printOp(const MachineOperand &MO, raw_ostream &O) { case MachineOperand::MO_ExternalSymbol: O << *GetExternalSymbolSymbol(MO.getSymbolName()); return; - case MachineOperand::MO_GlobalAddress: { + case MachineOperand::MO_GlobalAddress: // Computing the address of a global symbol, not calling it. O << *Mang->getSymbol(MO.getGlobal()); printOffset(MO.getOffset(), O); return; } - - default: - O << "<unknown operand type: " << MO.getType() << ">"; - return; - } } - // // isBlockOnlyReachableByFallthrough - We need to override this since the // default AsmPrinter does not print labels for any basic block that @@ -272,7 +128,7 @@ isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const { bool HexagonAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, unsigned AsmVariant, const char *ExtraCode, - raw_ostream &OS) { + raw_ostream &OS) { // Does this asm operand have a single letter operand modifier? if (ExtraCode && ExtraCode[0]) { if (ExtraCode[1] != 0) return true; // Unknown modifier. @@ -340,154 +196,11 @@ void HexagonAsmPrinter::printPredicateOperand(const MachineInstr *MI, /// the current output stream. /// void HexagonAsmPrinter::EmitInstruction(const MachineInstr *MI) { - SmallString<128> Str; - raw_svector_ostream O(Str); - - const MachineFunction* MF = MI->getParent()->getParent(); - const HexagonMachineFunctionInfo* MFI = - (const HexagonMachineFunctionInfo*) - MF->getInfo<HexagonMachineFunctionInfo>(); - + MCInst MCI; + HexagonLowerToMC(MI, MCI, *this); + OutStreamer.EmitInstruction(MCI); - // Print a brace for the beginning of the packet. - if (MFI->isStartPacket(MI)) { - O << "\t{" << '\n'; - } - - DEBUG( O << "// MI = " << *MI << '\n';); - - // Indent - O << "\t"; - - - if (MI->getOpcode() == Hexagon::ENDLOOP0) { - if (MFI->isEndPacket(MI) && MFI->isStartPacket(MI)) { - O << "\t{ nop }"; - } else { - O << "}"; - } - printInstruction(MI, O); - } else if (MI->getOpcode() == Hexagon::MPYI_rin) { - // Handle multipy with -ve constant on Hexagon: - // "$dst =- mpyi($src1, #$src2)" - printOperand(MI, 0, O); - O << " =- mpyi("; - printOperand(MI, 1, O); - O << ", #"; - printHexagonNegImmOperand(MI, 2, O); - O << ")"; - } else if (MI->getOpcode() == Hexagon::MEMw_ADDSUBi_indexed_MEM_V4) { - // - // Handle memw(Rs+u6:2) [+-]= #U5 - // - O << "\tmemw("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::MEMw_ADDSUBi_MEM_V4) { - // - // Handle memw(Rs+u6:2) [+-]= #U5 - // - O << "\tmemw("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::MEMh_ADDSUBi_indexed_MEM_V4) { - // - // Handle memh(Rs+u6:1) [+-]= #U5 - // - O << "\tmemh("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::MEMh_ADDSUBi_MEM_V4) { - // - // Handle memh(Rs+u6:1) [+-]= #U5 - // - O << "\tmemh("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::MEMb_ADDSUBi_indexed_MEM_V4) { - // - // Handle memb(Rs+u6:1) [+-]= #U5 - // - O << "\tmemb("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::MEMb_ADDSUBi_MEM_V4) { - // - // Handle memb(Rs+u6:1) [+-]= #U5 - // - O << "\tmemb("; printHexagonMEMriOperand(MI, 0, O); O << ") "; - int addend = MI->getOperand(2).getImm(); - if (addend < 0) - O << "-= " << "#" << -addend << '\n'; - else - O << "+= " << "#" << addend << '\n'; - } else if (MI->getOpcode() == Hexagon::CMPbGTri_V4) { - // - // Handle Pd=cmpb.gt(Rs,#s8) - // - O << "\t"; - printRegister(MI->getOperand(0), false, O); - O << " = cmpb.gt("; - printRegister(MI->getOperand(1), false, O); - O << ", "; - int val = MI->getOperand(2).getImm() >> 24; - O << "#" << val << ")" << '\n'; - } else if (MI->getOpcode() == Hexagon::CMPhEQri_V4) { - // - // Handle Pd=cmph.eq(Rs,#8) - // - O << "\t"; - printRegister(MI->getOperand(0), false, O); - O << " = cmph.eq("; - printRegister(MI->getOperand(1), false, O); - O << ", "; - int val = MI->getOperand(2).getImm(); - assert((((0 <= val) && (val <= 127)) || - ((65408 <= val) && (val <= 65535))) && - "Not in correct range!"); - if (val >= 65408) val -= 65536; - O << "#" << val << ")" << '\n'; - } else if (MI->getOpcode() == Hexagon::CMPhGTri_V4) { - // - // Handle Pd=cmph.gt(Rs,#8) - // - O << "\t"; - printRegister(MI->getOperand(0), false, O); - O << " = cmph.gt("; - printRegister(MI->getOperand(1), false, O); - O << ", "; - int val = MI->getOperand(2).getImm() >> 16; - O << "#" << val << ")" << '\n'; - } else { - printInstruction(MI, O); - } - - // Print a brace for the end of the packet. - if (MFI->isEndPacket(MI) && MI->getOpcode() != Hexagon::ENDLOOP0) { - O << "\n\t}" << '\n'; - } - - if (AlignCalls && MI->getDesc().isCall()) { - O << "\n\t.falign" << "\n"; - } - - OutStreamer.EmitRawText(O.str()); return; } @@ -506,7 +219,7 @@ void HexagonAsmPrinter::printAddrModeBasePlusOffset(const MachineInstr *MI, const MachineOperand &MO1 = MI->getOperand(OpNo); const MachineOperand &MO2 = MI->getOperand(OpNo+1); - O << getRegisterName(MO1.getReg()) + O << HexagonInstPrinter::getRegisterName(MO1.getReg()) << " + #" << MO2.getImm(); } @@ -535,6 +248,31 @@ void HexagonAsmPrinter::printJumpTable(const MachineInstr *MI, int OpNo, O << *GetJTISymbol(MO.getIndex()); } +void HexagonAsmPrinter::printConstantPool(const MachineInstr *MI, int OpNo, + raw_ostream &O) { + const MachineOperand &MO = MI->getOperand(OpNo); + assert( (MO.getType() == MachineOperand::MO_ConstantPoolIndex) && + "Expecting constant pool index"); + + // Hexagon_TODO: Do we need name mangling? + O << *GetCPISymbol(MO.getIndex()); +} + +static MCInstPrinter *createHexagonMCInstPrinter(const Target &T, + unsigned SyntaxVariant, + const MCAsmInfo &MAI, + const MCInstrInfo &MII, + const MCRegisterInfo &MRI, + const MCSubtargetInfo &STI) { + if (SyntaxVariant == 0) + return(new HexagonInstPrinter(MAI, MII, MRI)); + else + return NULL; +} + extern "C" void LLVMInitializeHexagonAsmPrinter() { RegisterAsmPrinter<HexagonAsmPrinter> X(TheHexagonTarget); + + TargetRegistry::RegisterMCInstPrinter(TheHexagonTarget, + createHexagonMCInstPrinter); } |