unsigned DestReg, unsigned SrcReg,
unsigned ImmOffset, unsigned dataSize) const = 0;
+ virtual MachineBasicBlock::iterator
+ moveReg2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned SrcReg, unsigned dataSize) const = 0;
+
+ virtual MachineBasicBlock::iterator
+ moveImm2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned Imm, unsigned dataSize) const = 0;
+
virtual MachineBasicBlock::iterator
emitPrologue(MachineBasicBlock *MBB,
MachineBasicBlock::iterator MBBI,
return ++(MBB->insert(MBBI, MI));
}
+MachineBasicBlock::iterator
+X86RegisterInfo::moveReg2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned SrcReg,
+ unsigned dataSize) const
+{
+ unsigned opcode;
+ switch (dataSize) {
+ case 1: opcode = X86::MOVrr8; break;
+ case 2: opcode = X86::MOVrr16; break;
+ case 4: opcode = X86::MOVrr32; break;
+ default: assert(0 && "Invalid data size!");
+ }
+
+ MachineInstr *MI = BuildMI(opcode, 2).addReg(DestReg).addReg(SrcReg);
+ return ++(MBB->insert(MBBI, MI));
+}
+
+MachineBasicBlock::iterator
+X86RegisterInfo::moveImm2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned Imm, unsigned dataSize)
+ const
+{
+ unsigned opcode;
+ switch (dataSize) {
+ case 1: opcode = X86::MOVir8; break;
+ case 2: opcode = X86::MOVir16; break;
+ case 4: opcode = X86::MOVir32; break;
+ default: assert(0 && "Invalid data size!");
+ }
+
+ MachineInstr *MI = BuildMI(opcode, 2).addReg(DestReg).addReg(Imm);
+ return ++(MBB->insert(MBBI, MI));
+}
+
unsigned X86RegisterInfo::getFramePointer() const {
return X86::EBP;
unsigned DestReg, unsigned SrcReg,
unsigned ImmOffset, unsigned dataSize) const;
+ MachineBasicBlock::iterator
+ moveReg2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned SrcReg, unsigned dataSize) const;
+
+ MachineBasicBlock::iterator
+ moveImm2Reg(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned DestReg, unsigned Imm, unsigned dataSize) const;
+
unsigned getFramePointer() const;
unsigned getStackPointer() const;