diff options
Diffstat (limited to 'llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp | 265 |
1 files changed, 5 insertions, 260 deletions
diff --git a/llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp b/llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp index 53a443d6d8a..70f6a27022f 100644 --- a/llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp +++ b/llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp @@ -19,21 +19,15 @@ #include "X86COFF.h" #include "X86MachineFunctionInfo.h" #include "X86TargetMachine.h" -#include "X86MCAsmInfo.h" #include "llvm/CallingConv.h" #include "llvm/DerivedTypes.h" #include "llvm/Module.h" #include "llvm/Type.h" -#include "llvm/ADT/SmallString.h" #include "llvm/ADT/Statistic.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Assembly/Writer.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCExpr.h" -#include "llvm/MC/MCInst.h" -#include "llvm/MC/MCSectionMachO.h" #include "llvm/MC/MCStreamer.h" -#include "llvm/CodeGen/DwarfWriter.h" +#include "llvm/MC/MCSectionMachO.h" #include "llvm/CodeGen/MachineJumpTableInfo.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/ErrorHandling.h" @@ -64,20 +58,6 @@ void X86ATTAsmPrinter::PrintPICBaseSymbol() const { } } -MCSymbol *X86ATTAsmPrinter::GetPICBaseSymbol() { - // FIXME: the actual label generated doesn't matter here! Just mangle in - // something unique (the function number) with Private prefix. - std::string Name; - - if (Subtarget->isTargetDarwin()) { - Name = "L" + utostr(getFunctionNumber())+"$pb"; - } else { - assert(Subtarget->isTargetELF() && "Don't know how to print PIC label!"); - Name = ".Lllvm$" + utostr(getFunctionNumber())+".$piclabel"; - } - return OutContext.GetOrCreateSymbol(Name); -} - static X86MachineFunctionInfo calculateFunctionInfo(const Function *F, const TargetData *TD) { X86MachineFunctionInfo Info; @@ -710,154 +690,6 @@ bool X86ATTAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, return false; } -static void lower_lea64_32mem(MCInst *MI, unsigned OpNo) { - // Convert registers in the addr mode according to subreg64. - for (unsigned i = 0; i != 4; ++i) { - if (!MI->getOperand(i).isReg()) continue; - - unsigned Reg = MI->getOperand(i).getReg(); - if (Reg == 0) continue; - - MI->getOperand(i).setReg(getX86SubSuperRegister(Reg, MVT::i64)); - } -} - -/// LowerGlobalAddressOperand - Lower an MO_GlobalAddress operand to an -/// MCOperand. -MCOperand X86ATTAsmPrinter::LowerGlobalAddressOperand(const MachineOperand &MO){ - const GlobalValue *GV = MO.getGlobal(); - - const char *Suffix = ""; - if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) - Suffix = "$stub"; - else if (MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY || - MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY_PIC_BASE || - MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY || - MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE) - Suffix = "$non_lazy_ptr"; - - std::string Name = Mang->getMangledName(GV, Suffix, Suffix[0] != '\0'); - if (Subtarget->isTargetCygMing()) - DecorateCygMingName(Name, GV); - - // Handle dllimport linkage. - if (MO.getTargetFlags() == X86II::MO_DLLIMPORT) - Name = "__imp_" + Name; - - if (MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY || - MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY_PIC_BASE) - GVStubs[Name] = Mang->getMangledName(GV); - else if (MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY || - MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE) - HiddenGVStubs[Name] = Mang->getMangledName(GV); - else if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) - FnStubs[Name] = Mang->getMangledName(GV); - - - // Handle target operand flags. - // FIXME: This should be common between external symbols, constant pool etc. - MCSymbol *NegatedSymbol = 0; - - switch (MO.getTargetFlags()) { - default: - llvm_unreachable("Unknown target flag on GV operand"); - case X86II::MO_NO_FLAG: // No flag. - break; - case X86II::MO_DARWIN_NONLAZY: - case X86II::MO_DARWIN_HIDDEN_NONLAZY: - case X86II::MO_DLLIMPORT: - case X86II::MO_DARWIN_STUB: - // These affect the name of the symbol, not any suffix. - break; - case X86II::MO_GOT_ABSOLUTE_ADDRESS: - assert(0 && "Reloc mode unimp!"); - //O << " + [.-"; - //PrintPICBaseSymbol(); - //O << ']'; - break; - case X86II::MO_PIC_BASE_OFFSET: - case X86II::MO_DARWIN_NONLAZY_PIC_BASE: - case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE: - // Subtract the pic base. - NegatedSymbol = GetPICBaseSymbol(); - break; - - // FIXME: These probably should be a modifier on the symbol or something?? - case X86II::MO_TLSGD: Name += "@TLSGD"; break; - case X86II::MO_GOTTPOFF: Name += "@GOTTPOFF"; break; - case X86II::MO_INDNTPOFF: Name += "@INDNTPOFF"; break; - case X86II::MO_TPOFF: Name += "@TPOFF"; break; - case X86II::MO_NTPOFF: Name += "@NTPOFF"; break; - case X86II::MO_GOTPCREL: Name += "@GOTPCREL"; break; - case X86II::MO_GOT: Name += "@GOT"; break; - case X86II::MO_GOTOFF: Name += "@GOTOFF"; break; - case X86II::MO_PLT: Name += "@PLT"; break; - } - - // Create a symbol for the name. - MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name); - // FIXME: We would like an efficient form for this, so we don't have to do a - // lot of extra uniquing. - const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, OutContext); - if (NegatedSymbol) - Expr = MCBinaryExpr::CreateSub(Expr, MCSymbolRefExpr::Create(NegatedSymbol, - OutContext), - OutContext); - if (MO.getOffset()) - Expr = MCBinaryExpr::CreateAdd(Expr, MCConstantExpr::Create(MO.getOffset(), - OutContext), - OutContext); - return MCOperand::CreateExpr(Expr); -} - -MCOperand X86ATTAsmPrinter:: -LowerExternalSymbolOperand(const MachineOperand &MO) { - std::string Name = Mang->makeNameProper(MO.getSymbolName()); - if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) { - FnStubs[Name+"$stub"] = Name; - Name += "$stub"; - } - - MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name); - // FIXME: We would like an efficient form for this, so we don't have to do a - // lot of extra uniquing. - const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, OutContext); - if (MO.getOffset()) - Expr = MCBinaryExpr::CreateAdd(Expr, - MCConstantExpr::Create(MO.getOffset(), - OutContext), - OutContext); - return MCOperand::CreateExpr(Expr); -} - -MCOperand X86ATTAsmPrinter::LowerJumpTableOperand(const MachineOperand &MO) { - SmallString<256> Name; - raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI" - << getFunctionNumber() << '_' << MO.getIndex(); - - MCSymbol *NegatedSymbol = 0; - switch (MO.getTargetFlags()) { - default: - llvm_unreachable("Unknown target flag on GV operand"); - case X86II::MO_PIC_BASE_OFFSET: - case X86II::MO_DARWIN_NONLAZY_PIC_BASE: - case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE: - // Subtract the pic base. - NegatedSymbol = GetPICBaseSymbol(); - break; - } - - // Create a symbol for the name. - MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name.str()); - // FIXME: We would like an efficient form for this, so we don't have to do a - // lot of extra uniquing. - const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, OutContext); - if (NegatedSymbol) - Expr = MCBinaryExpr::CreateSub(Expr, MCSymbolRefExpr::Create(NegatedSymbol, - OutContext), - OutContext); - return MCOperand::CreateExpr(Expr); -} /// printMachineInstruction -- Print out a single X86 LLVM instruction MI in @@ -866,98 +698,11 @@ MCOperand X86ATTAsmPrinter::LowerJumpTableOperand(const MachineOperand &MO) { void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) { ++EmittedInsts; - if (!NewAsmPrinter) { - // Call the autogenerated instruction printer routines. + // Call the autogenerated instruction printer routines. + if (NewAsmPrinter) + printInstructionThroughMCStreamer(MI); + else printInstruction(MI); - return; - } - - MCInst TmpInst; - - switch (MI->getOpcode()) { - case TargetInstrInfo::DBG_LABEL: - case TargetInstrInfo::EH_LABEL: - case TargetInstrInfo::GC_LABEL: - printLabel(MI); - return; - case TargetInstrInfo::INLINEASM: - O << '\t'; - printInlineAsm(MI); - return; - case TargetInstrInfo::IMPLICIT_DEF: - printImplicitDef(MI); - return; - case X86::MOVPC32r: { - // This is a pseudo op for a two instruction sequence with a label, which - // looks like: - // call "L1$pb" - // "L1$pb": - // popl %esi - - // Emit the call. - MCSymbol *PICBase = GetPICBaseSymbol(); - TmpInst.setOpcode(X86::CALLpcrel32); - // FIXME: We would like an efficient form for this, so we don't have to do a - // lot of extra uniquing. - TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::Create(PICBase, - OutContext))); - printInstruction(&TmpInst); - - // Emit the label. - OutStreamer.EmitLabel(PICBase); - - // popl $reg - TmpInst.setOpcode(X86::POP32r); - TmpInst.getOperand(0) = MCOperand::CreateReg(MI->getOperand(0).getReg()); - printInstruction(&TmpInst); - return; - } - } - - TmpInst.setOpcode(MI->getOpcode()); - - for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { - const MachineOperand &MO = MI->getOperand(i); - - MCOperand MCOp; - switch (MO.getType()) { - default: - O.flush(); - errs() << "Cannot lower operand #" << i << " of :" << *MI; - llvm_unreachable("Unimp"); - case MachineOperand::MO_JumpTableIndex: - MCOp = LowerJumpTableOperand(MO); - break; - case MachineOperand::MO_Register: - MCOp = MCOperand::CreateReg(MO.getReg()); - break; - case MachineOperand::MO_Immediate: - MCOp = MCOperand::CreateImm(MO.getImm()); - break; - case MachineOperand::MO_MachineBasicBlock: - MCOp = MCOperand::CreateMBBLabel(getFunctionNumber(), - MO.getMBB()->getNumber()); - break; - case MachineOperand::MO_GlobalAddress: - MCOp = LowerGlobalAddressOperand(MO); - break; - case MachineOperand::MO_ExternalSymbol: - MCOp = LowerExternalSymbolOperand(MO); - break; - } - - TmpInst.addOperand(MCOp); - } - - switch (TmpInst.getOpcode()) { - case X86::LEA64_32r: - // Handle the 'subreg rewriting' for the lea64_32mem operand. - lower_lea64_32mem(&TmpInst, 1); - break; - } - - // FIXME: Convert TmpInst. - printInstruction(&TmpInst); } void X86ATTAsmPrinter::PrintGlobalVariable(const GlobalVariable* GVar) { |
