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IR: Add IR instructions A64Memory{Read,Write}128

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This implementation only works on macOS and Linux.
This commit is contained in:
MerryMage 2018-01-24 15:55:59 +00:00
parent e00a522cba
commit e1df7ae621
9 changed files with 72 additions and 4 deletions
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2
include/dynarmic/A64/config.h
View file

@ -42,12 +42,14 @@ struct UserCallbacks {
virtual std::uint16_t MemoryRead16(VAddr vaddr) = 0;
virtual std::uint32_t MemoryRead32(VAddr vaddr) = 0;
virtual std::uint64_t MemoryRead64(VAddr vaddr) = 0;
virtual Vector MemoryRead128(VAddr vaddr) = 0;
// Writes through these callbacks may not be aligned.
virtual void MemoryWrite8(VAddr vaddr, std::uint8_t value) = 0;
virtual void MemoryWrite16(VAddr vaddr, std::uint16_t value) = 0;
virtual void MemoryWrite32(VAddr vaddr, std::uint32_t value) = 0;
virtual void MemoryWrite64(VAddr vaddr, std::uint64_t value) = 0;
virtual void MemoryWrite128(VAddr vaddr, Vector value) = 0;
// If this callback returns true, the JIT will assume MemoryRead* callbacks will always
// return the same value at any point in time for this vaddr. The JIT may use this information

41
src/backend_x64/a64_emit_x64.cpp
View file

@ -319,6 +319,25 @@ void A64EmitX64::EmitA64ReadMemory64(A64EmitContext& ctx, IR::Inst* inst) {
});
}
void A64EmitX64::EmitA64ReadMemory128(A64EmitContext& ctx, IR::Inst* inst) {
DEVIRT(conf.callbacks, &A64::UserCallbacks::MemoryRead128).EmitCall(code, [&](Xbyak::Reg64 vaddr) {
ASSERT(vaddr == code->ABI_PARAM2);
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.HostCall(nullptr, {}, args[0]);
});
Xbyak::Xmm result = xmm0;
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
code->movq(result, code->ABI_RETURN);
code->pinsrq(result, code->ABI_RETURN2, 1);
} else {
Xbyak::Xmm tmp = xmm1;
code->movq(result, code->ABI_RETURN);
code->movq(tmp, code->ABI_RETURN2);
code->punpcklqdq(result, tmp);
}
ctx.reg_alloc.DefineValue(inst, result);
}
void A64EmitX64::EmitA64WriteMemory8(A64EmitContext& ctx, IR::Inst* inst) {
DEVIRT(conf.callbacks, &A64::UserCallbacks::MemoryWrite8).EmitCall(code, [&](Xbyak::Reg64 vaddr, Xbyak::Reg64 value) {
ASSERT(vaddr == code->ABI_PARAM2 && value == code->ABI_PARAM3);
@ -351,6 +370,28 @@ void A64EmitX64::EmitA64WriteMemory64(A64EmitContext& ctx, IR::Inst* inst) {
});
}
void A64EmitX64::EmitA64WriteMemory128(A64EmitContext& ctx, IR::Inst* inst) {
DEVIRT(conf.callbacks, &A64::UserCallbacks::MemoryWrite128).EmitCall(code, [&](Xbyak::Reg64 vaddr, Xbyak::Reg64 value0, Xbyak::Reg64 value1) {
ASSERT(vaddr == code->ABI_PARAM2 && value0 == code->ABI_PARAM3 && value1 == code->ABI_PARAM4);
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.Use(args[0], ABI_PARAM2);
ctx.reg_alloc.ScratchGpr({ABI_PARAM3});
ctx.reg_alloc.ScratchGpr({ABI_PARAM4});
if (code->DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
Xbyak::Xmm xmm_value = ctx.reg_alloc.UseXmm(args[1]);
code->movq(code->ABI_PARAM3, xmm_value);
code->pextrq(code->ABI_PARAM4, xmm_value, 1);
} else {
Xbyak::Xmm xmm_value = ctx.reg_alloc.UseScratchXmm(args[1]);
code->movq(code->ABI_PARAM3, xmm_value);
code->punpckhqdq(xmm_value, xmm_value);
code->movq(code->ABI_PARAM4, xmm_value);
}
ctx.reg_alloc.EndOfAllocScope();
ctx.reg_alloc.HostCall(nullptr);
});
}
void A64EmitX64::EmitTerminalImpl(IR::Term::Interpret terminal, IR::LocationDescriptor) {
code->SwitchMxcsrOnExit();
DEVIRT(conf.callbacks, &A64::UserCallbacks::InterpreterFallback).EmitCall(code, [&](Xbyak::Reg64 param1, Xbyak::Reg64 param2) {

8
src/frontend/A64/ir_emitter.cpp
View file

@ -58,6 +58,10 @@ IR::U64 IREmitter::ReadMemory64(const IR::U64& vaddr) {
return Inst<IR::U64>(Opcode::A64ReadMemory64, vaddr);
}
IR::U128 IREmitter::ReadMemory128(const IR::U64& vaddr) {
return Inst<IR::U128>(Opcode::A64ReadMemory128, vaddr);
}
void IREmitter::WriteMemory8(const IR::U64& vaddr, const IR::U8& value) {
Inst(Opcode::A64WriteMemory8, vaddr, value);
}
@ -74,6 +78,10 @@ void IREmitter::WriteMemory64(const IR::U64& vaddr, const IR::U64& value) {
Inst(Opcode::A64WriteMemory64, vaddr, value);
}
void IREmitter::WriteMemory128(const IR::U64& vaddr, const IR::U128& value) {
Inst(Opcode::A64WriteMemory128, vaddr, value);
}
IR::U32 IREmitter::GetW(Reg reg) {
if (reg == Reg::ZR)
return Imm32(0);

2
src/frontend/A64/ir_emitter.h
View file

@ -44,10 +44,12 @@ public:
IR::U16 ReadMemory16(const IR::U64& vaddr);
IR::U32 ReadMemory32(const IR::U64& vaddr);
IR::U64 ReadMemory64(const IR::U64& vaddr);
IR::U128 ReadMemory128(const IR::U64& vaddr);
void WriteMemory8(const IR::U64& vaddr, const IR::U8& value);
void WriteMemory16(const IR::U64& vaddr, const IR::U16& value);
void WriteMemory32(const IR::U64& vaddr, const IR::U32& value);
void WriteMemory64(const IR::U64& vaddr, const IR::U64& value);
void WriteMemory128(const IR::U64& vaddr, const IR::U128& value);
IR::U32 GetW(Reg source_reg);
IR::U64 GetX(Reg source_reg);

9
src/frontend/A64/translate/impl/impl.cpp
View file

@ -147,7 +147,7 @@ void TranslatorVisitor::V(size_t bitsize, Vec vec, IR::U128 value) {
}
}
IR::UAny TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acctype*/) {
IR::UAnyU128 TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acctype*/) {
switch (bytesize) {
case 1:
return ir.ReadMemory8(address);
@ -157,13 +157,15 @@ IR::UAny TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acct
return ir.ReadMemory32(address);
case 8:
return ir.ReadMemory64(address);
case 16:
return ir.ReadMemory128(address);
default:
ASSERT_MSG(false, "Invalid bytesize parameter %zu", bytesize);
return {};
}
}
void TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acctype*/, IR::UAny value) {
void TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acctype*/, IR::UAnyU128 value) {
switch (bytesize) {
case 1:
ir.WriteMemory8(address, value);
@ -177,6 +179,9 @@ void TranslatorVisitor::Mem(IR::U64 address, size_t bytesize, AccType /*acctype*
case 8:
ir.WriteMemory64(address, value);
return;
case 16:
ir.WriteMemory128(address, value);
return;
default:
ASSERT_MSG(false, "Invalid bytesize parameter %zu", bytesize);
return;

4
src/frontend/A64/translate/impl/impl.h
View file

@ -51,8 +51,8 @@ struct TranslatorVisitor final {
IR::U128 V(size_t bitsize, Vec vec);
void V(size_t bitsize, Vec vec, IR::U128 value);
IR::UAny Mem(IR::U64 address, size_t size, AccType acctype);
void Mem(IR::U64 address, size_t size, AccType acctype, IR::UAny value);
IR::UAnyU128 Mem(IR::U64 address, size_t size, AccType acctype);
void Mem(IR::U64 address, size_t size, AccType acctype, IR::UAnyU128 value);
IR::U32U64 SignExtend(IR::UAny value, size_t to_size);
IR::U32U64 ZeroExtend(IR::UAny value, size_t to_size);

2
src/frontend/ir/opcodes.inc
View file

@ -237,10 +237,12 @@ A64OPC(ReadMemory8, T::U8, T::U64
A64OPC(ReadMemory16, T::U16, T::U64 )
A64OPC(ReadMemory32, T::U32, T::U64 )
A64OPC(ReadMemory64, T::U64, T::U64 )
A64OPC(ReadMemory128, T::U128, T::U64 )
A64OPC(WriteMemory8, T::Void, T::U64, T::U8 )
A64OPC(WriteMemory16, T::Void, T::U64, T::U16 )
A64OPC(WriteMemory32, T::Void, T::U64, T::U32 )
A64OPC(WriteMemory64, T::Void, T::U64, T::U64 )
A64OPC(WriteMemory128, T::Void, T::U64, T::U128 )
// Coprocessor
A32OPC(CoprocInternalOperation, T::Void, T::CoprocInfo )

1
src/frontend/ir/value.h
View file

@ -100,6 +100,7 @@ using U64 = TypedValue<Type::U64>;
using U128 = TypedValue<Type::U128>;
using U32U64 = TypedValue<Type::U32 | Type::U64>;
using UAny = TypedValue<Type::U8 | Type::U16 | Type::U32 | Type::U64>;
using UAnyU128 = TypedValue<Type::U8 | Type::U16 | Type::U32 | Type::U64 | Type::U128>;
using NZCV = TypedValue<Type::NZCVFlags>;
} // namespace IR

7
tests/A64/testenv.h
View file

@ -50,6 +50,9 @@ public:
std::uint64_t MemoryRead64(u64 vaddr) override {
return u64(MemoryRead32(vaddr)) | u64(MemoryRead32(vaddr + 4)) << 32;
}
Vector MemoryRead128(u64 vaddr) override {
return {MemoryRead64(vaddr), MemoryRead64(vaddr + 8)};
}
void MemoryWrite8(u64 vaddr, std::uint8_t value) override {
if (vaddr < code_mem.size() * sizeof(u32)) {
@ -69,6 +72,10 @@ public:
MemoryWrite32(vaddr, static_cast<u32>(value));
MemoryWrite32(vaddr + 4, static_cast<u32>(value >> 32));
}
void MemoryWrite128(u64 vaddr, Vector value) override {
MemoryWrite64(vaddr, value[0]);
MemoryWrite64(vaddr + 4, value[1]);
}
void InterpreterFallback(u64 pc, size_t num_instructions) override { ASSERT_MSG(false, "InterpreterFallback(%" PRIx64 ", %zu)", pc, num_instructions); }