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reg_alloc: Properly encapsulate HostLocInfo

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This commit is contained in:
MerryMage 2017-02-24 18:42:59 +00:00
parent 469bb6253f
commit 65cccf070e
2 changed files with 91 additions and 62 deletions
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79
src/backend_x64/reg_alloc.h
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@ -22,6 +22,64 @@
namespace Dynarmic {
namespace BackendX64 {
struct HostLocInfo {
public:
bool IsIdle() const {
return !is_being_used;
}
bool IsLocked() const {
return is_being_used;
}
bool IsEmpty() const {
return !is_being_used && !def && values.empty();
}
bool IsScratch() const {
return is_being_used && !def && values.empty();
}
bool IsUse() const {
return is_being_used && !def && !values.empty();
}
bool IsDef() const {
return is_being_used && def && values.empty();
}
bool IsUseDef() const {
return is_being_used && def && !values.empty();
}
bool ContainsValue(const IR::Inst* inst) const {
return std::find(values.begin(), values.end(), inst) != values.end();
}
void Lock() {
is_being_used = true;
}
void AddValue(IR::Inst* inst) {
values.push_back(inst);
}
void Def(IR::Inst* inst) {
ASSERT(!def);
def = inst;
}
void EndOfAllocScope() {
const auto to_erase = std::remove_if(values.begin(), values.end(), [](const auto& inst){ return !inst->HasUses(); });
values.erase(to_erase, values.end());
if (def) {
ASSERT(values.empty());
AddValue(def);
def = nullptr;
}
is_being_used = false;
}
private:
std::vector<IR::Inst*> values; // early value
IR::Inst* def = nullptr; // late value
bool is_being_used = false;
};
class RegAlloc final {
public:
explicit RegAlloc(BlockOfCode* code) : code(code) {}
@ -114,27 +172,6 @@ private:
BlockOfCode* code = nullptr;
struct HostLocInfo {
std::vector<IR::Inst*> values; // early value
IR::Inst* def = nullptr; // late value
bool is_being_used = false;
bool IsIdle() const {
return !is_being_used;
}
bool IsScratch() const {
return is_being_used && !def && values.empty();
}
bool IsUse() const {
return is_being_used && !def && !values.empty();
}
bool IsDef() const {
return is_being_used && def && values.empty();
}
bool IsUseDef() const {
return is_being_used && def && !values.empty();
}
};
std::array<HostLocInfo, HostLocCount> hostloc_info;
HostLocInfo& LocInfo(HostLoc loc) {
DEBUG_ASSERT(loc != HostLoc::RSP && loc != HostLoc::R15);