dolphin-emu/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2024-10-08 00:03:36 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

JITIL: fix some unsafe loads.

Browse Source 
I'm planning on making changes to the memory code, so I don't want this
stuff to get in the way.  The slight performance hit to JITIL isn't really
important at the moment.
This commit is contained in:
magumagu 2014-05-30 21:44:24 -07:00
parent 85724dd78a
commit 6c9095ebab
1 changed files with 11 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
Source/Core/Core/PowerPC/Jit64IL/IR_X86.cpp
View File

@ -1118,7 +1118,7 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, u32 exitAddress) {
if (!thisUsed) break;
X64Reg reg = fregFindFreeReg(RI);
Jit->MOV(32, R(ECX), regLocForInst(RI, getOp1(I)));
RI.Jit->UnsafeLoadRegToReg(ECX, ECX, 32, 0, false);
RI.Jit->SafeLoadToReg(ECX, R(ECX), 32, 0, regsInUse(RI), false, EmuCodeBlock::SAFE_LOADSTORE_NO_FASTMEM);
Jit->MOVD_xmm(reg, R(ECX));
RI.fregs[reg] = I;
regNormalRegClear(RI, I);
@ -1127,30 +1127,10 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, u32 exitAddress) {
case LoadDouble: {
if (!thisUsed) break;
X64Reg reg = fregFindFreeReg(RI);
if (cpu_info.bSSSE3) {
static const u32 GC_ALIGNED16(maskSwapa64_1[4]) =
{0x04050607L, 0x00010203L, 0xFFFFFFFFL, 0xFFFFFFFFL};
#if _M_X86_64
// TODO: Remove regEnsureInReg() and use ECX
X64Reg address = regEnsureInReg(RI, getOp1(I));
Jit->MOVQ_xmm(reg, MComplex(RBX, address, SCALE_1, 0));
#else
X64Reg address = regBinLHSReg(RI, I);
Jit->AND(32, R(address), Imm32(Memory::MEMVIEW32_MASK));
Jit->MOVQ_xmm(reg, MDisp(address, (u32)Memory::base));
#endif
Jit->PSHUFB(reg, M((void*)maskSwapa64_1));
} else {
const OpArg loc = regLocForInst(RI, getOp1(I));
Jit->MOV(32, R(ECX), loc);
Jit->ADD(32, R(ECX), Imm8(4));
RI.Jit->UnsafeLoadRegToReg(ECX, ECX, 32, 0, false);
Jit->MOVD_xmm(reg, R(ECX));
Jit->MOV(32, R(ECX), loc);
RI.Jit->UnsafeLoadRegToReg(ECX, ECX, 32, 0, false);
Jit->MOVD_xmm(XMM0, R(ECX));
Jit->PUNPCKLDQ(reg, R(XMM0));
}
const OpArg loc = regLocForInst(RI, getOp1(I));
Jit->MOV(32, R(ECX), loc);
RI.Jit->SafeLoadToReg(RCX, R(ECX), 64, 0, regsInUse(RI), false, EmuCodeBlock::SAFE_LOADSTORE_NO_FASTMEM);
Jit->MOVQ_xmm(reg, R(RCX));
RI.fregs[reg] = I;
regNormalRegClear(RI, I);
break;
@ -1196,67 +1176,13 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, u32 exitAddress) {
}
case StoreDouble: {
regSpill(RI, EAX);
// Please fix the following code
// if SafeWriteRegToReg() is modified.
u32 mem_mask = Memory::ADDR_MASK_HW_ACCESS;
if (Core::g_CoreStartupParameter.bMMU ||
Core::g_CoreStartupParameter.bTLBHack) {
mem_mask |= Memory::ADDR_MASK_MEM1;
}
#ifdef ENABLE_MEM_CHECK
if (Core::g_CoreStartupParameter.bEnableDebugging)
{
mem_mask |= Memory::EXRAM_MASK;
}
#endif
Jit->TEST(32, regLocForInst(RI, getOp2(I)), Imm32(mem_mask));
FixupBranch safe = Jit->J_CC(CC_NZ);
// Fast routine
if (cpu_info.bSSSE3) {
static const u32 GC_ALIGNED16(maskSwapa64_1[4]) =
{0x04050607L, 0x00010203L, 0xFFFFFFFFL, 0xFFFFFFFFL};
X64Reg value = fregBinLHSRegWithMov(RI, I);
Jit->PSHUFB(value, M((void*)maskSwapa64_1));
Jit->MOV(32, R(ECX), regLocForInst(RI, getOp2(I)));
#if _M_X86_64
Jit->MOVQ_xmm(MComplex(RBX, ECX, SCALE_1, 0), value);
#else
Jit->AND(32, R(ECX), Imm32(Memory::MEMVIEW32_MASK));
Jit->MOVQ_xmm(MDisp(ECX, (u32)Memory::base), value);
#endif
} else {
regSpill(RI, EAX);
OpArg loc = fregLocForInst(RI, getOp1(I));
if (!loc.IsSimpleReg() || !(RI.IInfo[I - RI.FirstI] & 4)) {
Jit->MOVAPD(XMM0, loc);
loc = R(XMM0);
}
Jit->MOVD_xmm(R(EAX), loc.GetSimpleReg());
Jit->MOV(32, R(ECX), regLocForInst(RI, getOp2(I)));
RI.Jit->UnsafeWriteRegToReg(EAX, ECX, 32, 4);
Jit->PSRLQ(loc.GetSimpleReg(), 32);
Jit->MOVD_xmm(R(EAX), loc.GetSimpleReg());
Jit->MOV(32, R(ECX), regLocForInst(RI, getOp2(I)));
RI.Jit->UnsafeWriteRegToReg(EAX, ECX, 32, 0);
}
FixupBranch exit = Jit->J(true);
Jit->SetJumpTarget(safe);
// Safe but slow routine
OpArg value = fregLocForInst(RI, getOp1(I));
OpArg address = regLocForInst(RI, getOp2(I));
Jit->MOVAPD(XMM0, value);
Jit->PSRLQ(XMM0, 32);
Jit->MOVD_xmm(R(EAX), XMM0);
Jit->MOV(32, R(ECX), address);
RI.Jit->SafeWriteRegToReg(EAX, ECX, 32, 0, regsInUse(RI), EmuCodeBlock::SAFE_LOADSTORE_NO_FASTMEM);
Jit->MOVAPD(XMM0, value);
Jit->MOVD_xmm(R(EAX), XMM0);
Jit->MOV(32, R(ECX), address);
RI.Jit->SafeWriteRegToReg(EAX, ECX, 32, 4, regsInUse(RI), EmuCodeBlock::SAFE_LOADSTORE_NO_FASTMEM);
Jit->SetJumpTarget(exit);
OpArg value = fregLocForInst(RI, getOp1(I));
OpArg address = regLocForInst(RI, getOp2(I));
Jit->MOVAPD(XMM0, value);
Jit->MOVQ_xmm(R(RAX), XMM0);
Jit->MOV(32, R(ECX), address);
RI.Jit->SafeWriteRegToReg(RAX, ECX, 64, 0, regsInUse(RI), EmuCodeBlock::SAFE_LOADSTORE_NO_FASTMEM);
if (RI.IInfo[I - RI.FirstI] & 4)
fregClearInst(RI, getOp1(I));