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JitIL: Fixed the Issue 3114. The bug was introduced because the usage of MOVSD/MOVSS was wrong. MOVSD/MOVSS don't clear the upper bits when they are used to transfer between registers. But they clear the upper bits when they are used to transfer between a register and memory. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6151 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nodchip 2010-08-30 01:24:14 +00:00
parent e4f9b6a5f8
commit baba7f54dc
1 changed files with 25 additions and 9 deletions
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34
Source/Core/Core/Src/PowerPC/Jit64IL/IR_X86.cpp
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@ -1362,9 +1362,17 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, bool UseProfile, bool Mak
// TODO: Optimize the case that the register of op1 can be
// recycled. (SHUFPD may not be so fast.)
X64Reg reg = fregBinRHSRegWithMov(RI, I);
// TODO: Check whether the following code works
// when the op1 is in the FSlotSet
Jit->MOVSD(reg, fregLocForInst(RI, getOp1(I)));
OpArg loc1 = fregLocForInst(RI, getOp1(I));
if (loc1.IsSimpleReg()) {
Jit->MOVSD(reg, loc1);
} else {
// If op1 is in FSlotSet, we have to mov loc1 to XMM0
// before MOVSD/MOVSS.
// Because register<->memory transfer with MOVSD/MOVSS
// clears upper 64/96-bits of the destination register.
Jit->MOVAPD(XMM0, loc1);
Jit->MOVSD(reg, R(XMM0));
}
RI.fregs[reg] = I;
fregNormalRegClear(RI, I);
break;
@ -1569,9 +1577,13 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, bool UseProfile, bool Mak
// TODO: Optimize the case that the register of only op1 can be
// recycled.
X64Reg reg = fregBinRHSRegWithMov(RI, I);
// TODO: Check whether the following code works
// when the op1 is in the FSlotSet
Jit->MOVSS(reg, fregLocForInst(RI, getOp1(I)));
OpArg loc1 = fregLocForInst(RI, getOp1(I));
if (loc1.IsSimpleReg()) {
Jit->MOVSS(reg, loc1);
} else {
Jit->MOVAPD(XMM0, loc1);
Jit->MOVSS(reg, R(XMM0));
}
RI.fregs[reg] = I;
fregNormalRegClear(RI, I);
break;
@ -1582,9 +1594,13 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, bool UseProfile, bool Mak
// TODO: Optimize the case that the register of only op2 can be
// recycled.
X64Reg reg = fregBinLHSRegWithMov(RI, I);
// TODO: Check whether the following code works
// when the op1 is in the FSlotSet
Jit->MOVSS(reg, fregLocForInst(RI, getOp2(I)));
OpArg loc2 = fregLocForInst(RI, getOp2(I));
if (loc2.IsSimpleReg()) {
Jit->MOVSS(reg, loc2);
} else {
Jit->MOVAPD(XMM0, loc2);
Jit->MOVSS(reg, R(XMM0));
}
Jit->SHUFPS(reg, R(reg), 0xF1);
RI.fregs[reg] = I;
fregNormalRegClear(RI, I);