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[Decompiler] Stack Variables (#338)

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* clean up type analysis

* get everything set up

* basic stack variables working

* partial load fix

* most of matrix

* add offline tests
This commit is contained in:
water111
2021-03-27 15:18:59 -04:00
committed by GitHub
parent 7fac11ddf5
commit 64c35ca453
44 changed files with 4223 additions and 387 deletions
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decompiler/IR2/Form.cpp
+75
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@@ -211,6 +211,8 @@ goos::Object LoadSourceElement::to_form_internal(const Env& env) const {
return pretty_print::build_list("l.wu", m_addr->to_form(env));
case 8:
return pretty_print::build_list("l.d", m_addr->to_form(env));
case 16:
return pretty_print::build_list("l.q", m_addr->to_form(env));
default:
assert(false);
return {};
@@ -229,6 +231,10 @@ goos::Object LoadSourceElement::to_form_internal(const Env& env) const {
return {};
}
break;
case LoadVarOp::Kind::VECTOR_FLOAT:
assert(m_size == 16);
return pretty_print::build_list("l.vf", m_addr->to_form(env));
break;
default:
assert(false);
return {};
@@ -2213,6 +2219,75 @@ void LambdaDefinitionElement::collect_vars(RegAccessSet&, bool) const {}
void LambdaDefinitionElement::get_modified_regs(RegSet&) const {}
/////////////////////////////
// StackVarDefElement
/////////////////////////////
StackVarDefElement::StackVarDefElement(const StackVarEntry& entry) : m_entry(entry) {}
goos::Object StackVarDefElement::to_form_internal(const Env&) const {
switch (m_entry.hint.container_type) {
case StackVariableHint::ContainerType::NONE:
return pretty_print::build_list(fmt::format("new 'stack '{}", m_entry.ref_type.print()));
default:
assert(false);
}
}
void StackVarDefElement::apply_form(const std::function<void(Form*)>&) {}
void StackVarDefElement::apply(const std::function<void(FormElement*)>& f) {
f(this);
}
void StackVarDefElement::collect_vars(RegAccessSet&, bool) const {}
void StackVarDefElement::get_modified_regs(RegSet&) const {}
////////////////////////////////
// VectorFloatLoadStoreElement
////////////////////////////////
VectorFloatLoadStoreElement::VectorFloatLoadStoreElement(Register vf_reg,
Form* location,
bool is_load)
: m_vf_reg(vf_reg), m_location(location), m_is_load(is_load) {
location->parent_element = this;
}
goos::Object VectorFloatLoadStoreElement::to_form_internal(const Env& env) const {
if (m_is_load) {
return pretty_print::build_list(".lvf", pretty_print::to_symbol(m_vf_reg.to_charp()),
m_location->to_form(env));
} else {
return pretty_print::build_list(".svf", m_location->to_form(env),
pretty_print::to_symbol(m_vf_reg.to_charp()));
}
}
void VectorFloatLoadStoreElement::apply(const std::function<void(FormElement*)>& f) {
f(this);
m_location->apply(f);
}
void VectorFloatLoadStoreElement::apply_form(const std::function<void(Form*)>& f) {
m_location->apply_form(f);
}
void VectorFloatLoadStoreElement::collect_vars(RegAccessSet& vars, bool recursive) const {
if (recursive) {
m_location->collect_vars(vars, recursive);
}
}
void VectorFloatLoadStoreElement::get_modified_regs(RegSet&) const {
// vf's dont count
}
void VectorFloatLoadStoreElement::collect_vf_regs(RegSet& regs) const {
regs.insert(m_vf_reg);
}
std::optional<SimpleAtom> form_as_atom(const Form* f) {
auto as_single = f->try_as_single_element();
auto as_atom = dynamic_cast<SimpleAtomElement*>(as_single);