//
//===----------------------------------------------------------------------===//
#include "MipsMCInstLower.h"
+#include "MCTargetDesc/MipsBaseInfo.h"
#include "MipsAsmPrinter.h"
#include "MipsInstrInfo.h"
-#include "MCTargetDesc/MipsBaseInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
MipsMCInstLower::MipsMCInstLower(MipsAsmPrinter &asmprinter)
: AsmPrinter(asmprinter) {}
-void MipsMCInstLower::Initialize(Mangler *M, MCContext *C) {
- Mang = M;
+void MipsMCInstLower::Initialize(MCContext *C) {
Ctx = C;
}
case MipsII::MO_GOT_OFST: Kind = MCSymbolRefExpr::VK_Mips_GOT_OFST; break;
case MipsII::MO_HIGHER: Kind = MCSymbolRefExpr::VK_Mips_HIGHER; break;
case MipsII::MO_HIGHEST: Kind = MCSymbolRefExpr::VK_Mips_HIGHEST; break;
+ case MipsII::MO_GOT_HI16: Kind = MCSymbolRefExpr::VK_Mips_GOT_HI16; break;
+ case MipsII::MO_GOT_LO16: Kind = MCSymbolRefExpr::VK_Mips_GOT_LO16; break;
+ case MipsII::MO_CALL_HI16: Kind = MCSymbolRefExpr::VK_Mips_CALL_HI16; break;
+ case MipsII::MO_CALL_LO16: Kind = MCSymbolRefExpr::VK_Mips_CALL_LO16; break;
}
switch (MOTy) {
break;
case MachineOperand::MO_GlobalAddress:
- Symbol = Mang->getSymbol(MO.getGlobal());
+ Symbol = AsmPrinter.getSymbol(MO.getGlobal());
Offset += MO.getOffset();
break;
}
}
-// If the D<shift> instruction has a shift amount that is greater
-// than 31 (checked in calling routine), lower it to a D<shift>32 instruction
-void MipsMCInstLower::LowerLargeShift(const MachineInstr *MI,
- MCInst& Inst,
- int64_t Shift) {
- // rt
- Inst.addOperand(LowerOperand(MI->getOperand(0)));
- // rd
- Inst.addOperand(LowerOperand(MI->getOperand(1)));
- // saminus32
- Inst.addOperand(MCOperand::CreateImm(Shift));
-
- switch (MI->getOpcode()) {
- default:
- // Calling function is not synchronized
- llvm_unreachable("Unexpected shift instruction");
- break;
- case Mips::DSLL:
- Inst.setOpcode(Mips::DSLL32);
- break;
- case Mips::DSRL:
- Inst.setOpcode(Mips::DSRL32);
- break;
- case Mips::DSRA:
- Inst.setOpcode(Mips::DSRA32);
- break;
- }
-}
-
-// Pick a DEXT or DINS instruction variant based on the pos and size operands
-void MipsMCInstLower::LowerDextDins(const MachineInstr *MI, MCInst& Inst) {
- int Opcode = MI->getOpcode();
-
- if (Opcode == Mips::DEXT)
- assert(MI->getNumOperands() == 4 &&
- "Invalid no. of machine operands for DEXT!");
- else // Only DEXT and DINS are possible
- assert(MI->getNumOperands() == 5 &&
- "Invalid no. of machine operands for DINS!");
-
- assert(MI->getOperand(2).isImm());
- int64_t pos = MI->getOperand(2).getImm();
- assert(MI->getOperand(3).isImm());
- int64_t size = MI->getOperand(3).getImm();
-
- // rt
- Inst.addOperand(LowerOperand(MI->getOperand(0)));
- // rs
- Inst.addOperand(LowerOperand(MI->getOperand(1)));
-
- if (size <= 32) {
- if ((pos < 32)) { // DEXT/DINS
- Inst.addOperand(MCOperand::CreateImm(pos));
- Inst.addOperand(MCOperand::CreateImm(size));
- Inst.setOpcode(Opcode);
- } else { // DEXTU/DINSU
- Inst.addOperand(MCOperand::CreateImm(pos - 32));
- Inst.addOperand(MCOperand::CreateImm(size));
- Inst.setOpcode((Opcode == Mips::DEXT) ? Mips::DEXTU : Mips::DINSU);
- }
- } else { // DEXTM/DINSM
- assert(pos < 32 && "DEXT/DINS cannot have both size and pos > 32");
- Inst.addOperand(MCOperand::CreateImm(pos));
- Inst.addOperand(MCOperand::CreateImm(size - 32));
- Inst.setOpcode(Mips::DEXTM);
- Inst.setOpcode((Opcode == Mips::DEXT) ? Mips::DEXTM : Mips::DINSM);
- }
-}