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https://github.com/c64scene-ar/llvm-6502.git
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subsequent changes are easier to review. About to fix some layering issues, and wanted to separate out the necessary churn. Also comment and sink the include of "Windows.h" in three .inc files to match the usage in Memory.inc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198685 91177308-0d34-0410-b5e6-96231b3b80d8
142 lines
5.4 KiB
C++
142 lines
5.4 KiB
C++
//===-- SparcMCInstLower.cpp - Convert Sparc MachineInstr to MCInst -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains code to lower Sparc MachineInstrs to their corresponding
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// MCInst records.
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//
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//===----------------------------------------------------------------------===//
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#include "Sparc.h"
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#include "MCTargetDesc/SparcBaseInfo.h"
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#include "MCTargetDesc/SparcMCExpr.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/CodeGen/MachineOperand.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/Target/Mangler.h"
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using namespace llvm;
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static MCOperand LowerSymbolOperand(const MachineInstr *MI,
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const MachineOperand &MO,
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AsmPrinter &AP) {
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SparcMCExpr::VariantKind Kind;
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const MCSymbol *Symbol = 0;
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unsigned TF = MO.getTargetFlags();
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switch(TF) {
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default: llvm_unreachable("Unknown target flags on operand");
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case SPII::MO_NO_FLAG: Kind = SparcMCExpr::VK_Sparc_None; break;
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case SPII::MO_LO: Kind = SparcMCExpr::VK_Sparc_LO; break;
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case SPII::MO_HI: Kind = SparcMCExpr::VK_Sparc_HI; break;
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case SPII::MO_H44: Kind = SparcMCExpr::VK_Sparc_H44; break;
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case SPII::MO_M44: Kind = SparcMCExpr::VK_Sparc_M44; break;
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case SPII::MO_L44: Kind = SparcMCExpr::VK_Sparc_L44; break;
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case SPII::MO_HH: Kind = SparcMCExpr::VK_Sparc_HH; break;
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case SPII::MO_HM: Kind = SparcMCExpr::VK_Sparc_HM; break;
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case SPII::MO_TLS_GD_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_GD_HI22; break;
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case SPII::MO_TLS_GD_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_GD_LO10; break;
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case SPII::MO_TLS_GD_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_GD_ADD; break;
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case SPII::MO_TLS_GD_CALL: Kind = SparcMCExpr::VK_Sparc_TLS_GD_CALL; break;
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case SPII::MO_TLS_LDM_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_HI22; break;
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case SPII::MO_TLS_LDM_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_LO10; break;
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case SPII::MO_TLS_LDM_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_ADD; break;
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case SPII::MO_TLS_LDM_CALL: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_CALL; break;
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case SPII::MO_TLS_LDO_HIX22:Kind = SparcMCExpr::VK_Sparc_TLS_LDO_HIX22; break;
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case SPII::MO_TLS_LDO_LOX10:Kind = SparcMCExpr::VK_Sparc_TLS_LDO_LOX10; break;
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case SPII::MO_TLS_LDO_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_LDO_ADD; break;
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case SPII::MO_TLS_IE_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_IE_HI22; break;
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case SPII::MO_TLS_IE_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LO10; break;
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case SPII::MO_TLS_IE_LD: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LD; break;
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case SPII::MO_TLS_IE_LDX: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LDX; break;
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case SPII::MO_TLS_IE_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_IE_ADD; break;
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case SPII::MO_TLS_LE_HIX22: Kind = SparcMCExpr::VK_Sparc_TLS_LE_HIX22; break;
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case SPII::MO_TLS_LE_LOX10: Kind = SparcMCExpr::VK_Sparc_TLS_LE_LOX10; break;
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}
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switch(MO.getType()) {
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default: llvm_unreachable("Unknown type in LowerSymbolOperand");
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case MachineOperand::MO_MachineBasicBlock:
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Symbol = MO.getMBB()->getSymbol();
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break;
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case MachineOperand::MO_GlobalAddress:
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Symbol = AP.getSymbol(MO.getGlobal());
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break;
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case MachineOperand::MO_BlockAddress:
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Symbol = AP.GetBlockAddressSymbol(MO.getBlockAddress());
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break;
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case MachineOperand::MO_ExternalSymbol:
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Symbol = AP.GetExternalSymbolSymbol(MO.getSymbolName());
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break;
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case MachineOperand::MO_ConstantPoolIndex:
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Symbol = AP.GetCPISymbol(MO.getIndex());
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break;
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}
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const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::Create(Symbol,
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AP.OutContext);
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const SparcMCExpr *expr = SparcMCExpr::Create(Kind, MCSym,
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AP.OutContext);
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return MCOperand::CreateExpr(expr);
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}
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static MCOperand LowerOperand(const MachineInstr *MI,
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const MachineOperand &MO,
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AsmPrinter &AP) {
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switch(MO.getType()) {
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default: llvm_unreachable("unknown operand type"); break;
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case MachineOperand::MO_Register:
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if (MO.isImplicit())
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break;
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return MCOperand::CreateReg(MO.getReg());
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case MachineOperand::MO_Immediate:
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return MCOperand::CreateImm(MO.getImm());
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case MachineOperand::MO_MachineBasicBlock:
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case MachineOperand::MO_GlobalAddress:
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case MachineOperand::MO_BlockAddress:
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case MachineOperand::MO_ExternalSymbol:
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case MachineOperand::MO_ConstantPoolIndex:
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return LowerSymbolOperand(MI, MO, AP);
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case MachineOperand::MO_RegisterMask: break;
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}
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return MCOperand();
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}
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void llvm::LowerSparcMachineInstrToMCInst(const MachineInstr *MI,
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MCInst &OutMI,
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AsmPrinter &AP)
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{
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OutMI.setOpcode(MI->getOpcode());
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for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
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const MachineOperand &MO = MI->getOperand(i);
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MCOperand MCOp = LowerOperand(MI, MO, AP);
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if (MCOp.isValid())
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OutMI.addOperand(MCOp);
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}
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}
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