mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-06 23:00:17 +02:00
Ryan Houdek
cd83d3eb24
There are some cases where we want to test multiple instructions where
we can do optimizations that would overwise be hard to see.
eg:
```asm
; Can be optimized to a single stp
push eax
push ebx
; Can remove half of the copy since we know the direction
cld
rep movsb
; Can remove a redundant insert
addss xmm0, xmm1
addss xmm0, xmm2
```
This lets us have arbitrary sized code in instruction count CI, with the
original json key becoming only a label if the instruction array is
provided.
There are still some major limitations to this, instructions that
generate side-effects might have "garbage" after the end of the block
that isn't correctly accounted for. So care must be taken.
Example in the json
```json
"push ax, bx": {
"ExpectedInstructionCount": 4,
"Optimal": "No",
"Comment": "0x50",
"x86Insts": [
"push ax",
"push bx"
],
"ExpectedArm64ASM": [
"uxth w20, w4",
"strh w20, [x8, #-2]!",
"uxth w20, w7",
"strh w20, [x8, #-2]!"
]
}
```
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
// SPDX-License-Identifier: MIT
|
|
#include "Interface/Context/Context.h"
|
|
#include "Interface/Core/OpcodeDispatcher.h"
|
|
#include "Interface/Core/X86Tables/X86Tables.h"
|
|
|
|
#include <FEXCore/Core/CoreState.h>
|
|
#include <FEXCore/Core/Context.h>
|
|
#include <FEXCore/Core/CPUID.h>
|
|
#include <FEXCore/Core/SignalDelegator.h>
|
|
#include "FEXCore/Debug/InternalThreadState.h"
|
|
|
|
#include <string.h>
|
|
#include <utility>
|
|
|
|
namespace FEXCore::HLE {
|
|
class SyscallVisitor;
|
|
}
|
|
|
|
namespace FEXCore::Context {
|
|
void InitializeStaticTables(OperatingMode Mode) {
|
|
X86Tables::InitializeInfoTables(Mode);
|
|
IR::InstallOpcodeHandlers(Mode);
|
|
}
|
|
|
|
fextl::unique_ptr<FEXCore::Context::Context> FEXCore::Context::Context::CreateNewContext() {
|
|
return fextl::make_unique<FEXCore::Context::ContextImpl>();
|
|
}
|
|
|
|
bool FEXCore::Context::ContextImpl::InitializeContext() {
|
|
// This should be used for generating things that are shared between threads
|
|
CPUID.Init(this);
|
|
return true;
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::SetExitHandler(ExitHandler handler) {
|
|
CustomExitHandler = std::move(handler);
|
|
}
|
|
|
|
ExitHandler FEXCore::Context::ContextImpl::GetExitHandler() const {
|
|
return CustomExitHandler;
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::Stop() {
|
|
Stop(false);
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
|
|
CompileBlock(Thread->CurrentFrame, GuestRIP);
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::CompileRIPCount(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP, uint64_t MaxInst) {
|
|
CompileBlock(Thread->CurrentFrame, GuestRIP, MaxInst);
|
|
}
|
|
|
|
FEXCore::Context::ExitReason FEXCore::Context::ContextImpl::GetExitReason() {
|
|
return ParentThread->ExitReason;
|
|
}
|
|
|
|
bool FEXCore::Context::ContextImpl::IsDone() const {
|
|
return IsPaused();
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::GetCPUState(FEXCore::Core::CPUState *State) const {
|
|
memcpy(State, ParentThread->CurrentFrame, sizeof(FEXCore::Core::CPUState));
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::SetCPUState(const FEXCore::Core::CPUState *State) {
|
|
memcpy(ParentThread->CurrentFrame, State, sizeof(FEXCore::Core::CPUState));
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::SetCustomCPUBackendFactory(CustomCPUFactoryType Factory) {
|
|
CustomCPUFactory = std::move(Factory);
|
|
}
|
|
|
|
HostFeatures FEXCore::Context::ContextImpl::GetHostFeatures() const {
|
|
return HostFeatures;
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::SetSignalDelegator(FEXCore::SignalDelegator *_SignalDelegation) {
|
|
SignalDelegation = _SignalDelegation;
|
|
}
|
|
|
|
void FEXCore::Context::ContextImpl::SetSyscallHandler(FEXCore::HLE::SyscallHandler *Handler) {
|
|
SyscallHandler = Handler;
|
|
SourcecodeResolver = Handler->GetSourcecodeResolver();
|
|
}
|
|
|
|
FEXCore::CPUID::FunctionResults FEXCore::Context::ContextImpl::RunCPUIDFunction(uint32_t Function, uint32_t Leaf) {
|
|
return CPUID.RunFunction(Function, Leaf);
|
|
}
|
|
|
|
FEXCore::CPUID::XCRResults FEXCore::Context::ContextImpl::RunXCRFunction(uint32_t Function) {
|
|
return CPUID.RunXCRFunction(Function);
|
|
}
|
|
|
|
FEXCore::CPUID::FunctionResults FEXCore::Context::ContextImpl::RunCPUIDFunctionName(uint32_t Function, uint32_t Leaf, uint32_t CPU) {
|
|
return CPUID.RunFunctionName(Function, Leaf, CPU);
|
|
}
|
|
}
|