/**
* The callee contains a *get/put instruction to an unknown field.
* Given the caller may not be in the same hierarchy/package we cannot inline
* it unless we make the field public.
* But we need to make all fields public across the hierarchy and for fields
* we don't know we have no idea whether the field was public or not anyway.
*/
bool MultiMethodInliner::unknown_field(DexInstruction* insn, DexMethod* context) {
if (is_ifield_op(insn->opcode()) || is_sfield_op(insn->opcode())) {
auto fop = static_cast<DexOpcodeField*>(insn);
auto field = fop->field();
field = resolve_field(field, is_sfield_op(insn->opcode())
? FieldSearch::Static : FieldSearch::Instance);
if (field == nullptr) {
info.escaped_field++;
return true;
}
if (!field->is_concrete() && !is_public(field)) {
info.non_pub_field++;
return true;
}
}
return false;
}
void MethodBlock::ifield_op(DexOpcode opcode,
DexField* field,
Location obj,
Location& src_or_dst) {
always_assert(is_ifield_op(opcode));
if (is_iget(opcode)) {
auto iget = new DexOpcodeField(opcode, field);
iget->set_dest(reg_num(src_or_dst));
src_or_dst.type = field->get_class();
iget->set_src(0, reg_num(obj));
push_instruction(iget);
} else {
auto iput = new DexOpcodeField(opcode, field);
iput->set_src(0, reg_num(src_or_dst));
iput->set_src(1, reg_num(obj));
push_instruction(iput);
}
}
void MethodBlock::ifield_op(IROpcode opcode,
DexField* field,
Location obj,
Location& src_or_dst) {
always_assert(is_ifield_op(opcode));
if (is_iget(opcode)) {
auto iget = new IRInstruction(opcode);
iget->set_field(field);
src_or_dst.type = field->get_class();
iget->set_src(0, obj.get_reg());
push_instruction(iget);
push_instruction(
(new IRInstruction(opcode::move_result_pseudo_for_iget(opcode)))
->set_dest(src_or_dst.get_reg()));
} else {
auto iput = new IRInstruction(opcode);
iput->set_field(field);
iput->set_src(0, src_or_dst.get_reg());
iput->set_src(1, obj.get_reg());
push_instruction(iput);
}
}
