protected override void EmitCode(NodeFactory factory, ref ARM.ARMEmitter instructionEncoder, bool relocsOnly)
{
switch (_thunkKind)
{
case Kind.Eager:
// mov r12, [helper]
instructionEncoder.EmitMOV(Register.R12, _helperCell);
// ldr.w r12, [r12]
instructionEncoder.EmitLDR(Register.R12, Register.R12, 0);
// bx r12
instructionEncoder.EmitJMP(Register.R12);
break;
case Kind.DelayLoadHelper:
case Kind.VirtualStubDispatch:
// r4 contains indirection cell
// push r4
instructionEncoder.EmitPUSH(Register.R4);
if (!relocsOnly)
{
int index = _instanceCell.Table.IndexFromBeginningOfArray;
// mov r4, #index
instructionEncoder.EmitMOV(Register.R4, index);
// push r4
instructionEncoder.EmitPUSH(Register.R4);
}
// mov r4, [module]
instructionEncoder.EmitMOV(Register.R4, _moduleImport);
// ldr r4, [r4]
instructionEncoder.EmitLDR(Register.R4, Register.R4);
// push r4
instructionEncoder.EmitPUSH(Register.R4);
// mov r4, [helper]
instructionEncoder.EmitMOV(Register.R4, _helperCell);
// ldr r4, [r4]
instructionEncoder.EmitLDR(Register.R4, Register.R4);
// bx r4
instructionEncoder.EmitJMP(Register.R4);
break;
case Kind.Lazy:
// mov r1, [module]
instructionEncoder.EmitMOV(Register.R1, _moduleImport);
// ldr r1, [r1]
instructionEncoder.EmitLDR(Register.R1, Register.R1);
// mov r12, [helper]
instructionEncoder.EmitMOV(Register.R12, _helperCell);
// ldr.w r12, [r12]
instructionEncoder.EmitLDR(Register.R12, Register.R12, 0);
// bx r12
instructionEncoder.EmitJMP(Register.R12);
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref ARM.ARMEmitter instructionEncoder, bool relocsOnly)
{
throw new NotImplementedException();
}
