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[dynarmic] Refactoring to reduce latency hit from recompilation #358

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Lizzie wants to merge 22 commits from liz-dynarmic-latency-improvments into master
pull from: liz-dynarmic-latency-improvments
merge into: eden-emu:master
Conversation 1 Commits 22 Files changed 35 +4 -4
2 changed files with 4 additions and 4 deletions
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Showing only changes of commit 36c3b34789 - Show all commits

2
src/dynarmic/src/dynarmic/backend/x64/reg_alloc.cpp
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@ -118,7 +118,7 @@ void HostLocInfo::AddValue(IR::Inst* inst) noexcept {
values.push_back(inst);
ASSERT(size_t(total_uses) + inst->UseCount() < (std::numeric_limits<uint16_t>::max)());
total_uses += inst->UseCount();
max_bit_width = std::max<uint8_t>(max_bit_width, GetBitWidth(inst->GetType()));
max_bit_width = std::max<uint8_t>(max_bit_width, std::countr_zero(GetBitWidth(inst->GetType())));
}
void HostLocInfo::EmitVerboseDebuggingOutput(BlockOfCode* code, size_t host_loc_index) const noexcept {

6
src/dynarmic/src/dynarmic/backend/x64/reg_alloc.h
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@ -78,7 +78,7 @@ public:
return std::find(values.begin(), values.end(), inst) != values.end();
}
inline size_t GetMaxBitWidth() const noexcept {
return max_bit_width;
return 1 << max_bit_width;
}
void AddValue(IR::Inst* inst) noexcept;
void EmitVerboseDebuggingOutput(BlockOfCode* code, size_t host_loc_index) const noexcept;
@ -94,10 +94,10 @@ private:
uint16_t is_being_used_count = 0; //8
uint16_t current_references = 0; //8
// Value state
uint8_t max_bit_width = 0; //Valid values: 1,2,4,8,16,32,128
uint8_t max_bit_width : 4 = 0; //Valid values: log2(1,2,4,8,16,32,128) = (0, 1, 2, 3, 4, 5, 6)
uint8_t lru_counter : 2 = 0; //1
bool is_scratch : 1 = false; //1
bool is_set_last_use : 1 = false; //1
uint8_t lru_counter = 0; //1
friend class RegAlloc;
};
static_assert(sizeof(HostLocInfo) == 64);