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Merge pull request #2502 from Tilka/xmm_swap 

Jit64: swap XMM registers for later optimization
This commit is contained in:
flacs 2015-06-02 13:06:08 +02:00
parent 426f33c408 d516e6bbf0
commit 0463f61499
1 changed files with 28 additions and 28 deletions
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56
Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp
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@ -119,19 +119,19 @@ void Jit64::fmaddXX(UGeckoInstruction inst)
switch(inst.SUBOP5)
{
case 14:
MOVDDUP(XMM0, fpr.R(c));
MOVDDUP(XMM1, fpr.R(c));
if (round_input)
Force25BitPrecision(XMM0, R(XMM0), XMM1);
Force25BitPrecision(XMM1, R(XMM1), XMM0);
break;
case 15:
avx_op(&XEmitter::VSHUFPD, &XEmitter::SHUFPD, XMM0, fpr.R(c), fpr.R(c), 3);
avx_op(&XEmitter::VSHUFPD, &XEmitter::SHUFPD, XMM1, fpr.R(c), fpr.R(c), 3);
if (round_input)
Force25BitPrecision(XMM0, R(XMM0), XMM1);
Force25BitPrecision(XMM1, R(XMM1), XMM0);
break;
default:
bool special = inst.SUBOP5 == 30 && (!cpu_info.bFMA || Core::g_want_determinism);
X64Reg tmp1 = special ? XMM1 : XMM0;
X64Reg tmp2 = special ? XMM0 : XMM1;
X64Reg tmp1 = special ? XMM0 : XMM1;
X64Reg tmp2 = special ? XMM1 : XMM0;
if (single && round_input)
Force25BitPrecision(tmp1, fpr.R(c), tmp2);
else
@ -154,17 +154,17 @@ void Jit64::fmaddXX(UGeckoInstruction inst)
{
case 28: //msub
if (packed)
VFMSUB132PD(XMM0, fpr.RX(b), fpr.R(a));
VFMSUB132PD(XMM1, fpr.RX(b), fpr.R(a));
else
VFMSUB132SD(XMM0, fpr.RX(b), fpr.R(a));
VFMSUB132SD(XMM1, fpr.RX(b), fpr.R(a));
break;
case 14: //madds0
case 15: //madds1
case 29: //madd
if (packed)
VFMADD132PD(XMM0, fpr.RX(b), fpr.R(a));
VFMADD132PD(XMM1, fpr.RX(b), fpr.R(a));
else
VFMADD132SD(XMM0, fpr.RX(b), fpr.R(a));
VFMADD132SD(XMM1, fpr.RX(b), fpr.R(a));
break;
// PowerPC and x86 define NMADD/NMSUB differently
// x86: D = -A*C (+/-) B
@ -172,61 +172,61 @@ void Jit64::fmaddXX(UGeckoInstruction inst)
// so we have to swap them; the ADD/SUB here isn't a typo.
case 30: //nmsub
if (packed)
VFNMADD132PD(XMM0, fpr.RX(b), fpr.R(a));
VFNMADD132PD(XMM1, fpr.RX(b), fpr.R(a));
else
VFNMADD132SD(XMM0, fpr.RX(b), fpr.R(a));
VFNMADD132SD(XMM1, fpr.RX(b), fpr.R(a));
break;
case 31: //nmadd
if (packed)
VFNMSUB132PD(XMM0, fpr.RX(b), fpr.R(a));
VFNMSUB132PD(XMM1, fpr.RX(b), fpr.R(a));
else
VFNMSUB132SD(XMM0, fpr.RX(b), fpr.R(a));
VFNMSUB132SD(XMM1, fpr.RX(b), fpr.R(a));
break;
}
}
else if (inst.SUBOP5 == 30) //nmsub
{
// We implement nmsub a little differently ((b - a*c) instead of -(a*c - b)), so handle it separately.
MOVAPD(XMM0, fpr.R(b));
MOVAPD(XMM1, fpr.R(b));
if (packed)
{
MULPD(XMM1, fpr.R(a));
SUBPD(XMM0, R(XMM1));
MULPD(XMM0, fpr.R(a));
SUBPD(XMM1, R(XMM0));
}
else
{
MULSD(XMM1, fpr.R(a));
SUBSD(XMM0, R(XMM1));
MULSD(XMM0, fpr.R(a));
SUBSD(XMM1, R(XMM0));
}
}
else
{
if (packed)
{
MULPD(XMM0, fpr.R(a));
MULPD(XMM1, fpr.R(a));
if (inst.SUBOP5 == 28) //msub
SUBPD(XMM0, fpr.R(b));
SUBPD(XMM1, fpr.R(b));
else //(n)madd(s[01])
ADDPD(XMM0, fpr.R(b));
ADDPD(XMM1, fpr.R(b));
}
else
{
MULSD(XMM0, fpr.R(a));
MULSD(XMM1, fpr.R(a));
if (inst.SUBOP5 == 28)
SUBSD(XMM0, fpr.R(b));
SUBSD(XMM1, fpr.R(b));
else
ADDSD(XMM0, fpr.R(b));
ADDSD(XMM1, fpr.R(b));
}
if (inst.SUBOP5 == 31) //nmadd
PXOR(XMM0, M(packed ? psSignBits2 : psSignBits));
PXOR(XMM1, M(packed ? psSignBits2 : psSignBits));
}
fpr.BindToRegister(d, !single);
if (single)
ForceSinglePrecision(fpr.RX(d), R(XMM0), packed, true);
ForceSinglePrecision(fpr.RX(d), R(XMM1), packed, true);
else
MOVSD(fpr.RX(d), R(XMM0));
MOVSD(fpr.RX(d), R(XMM1));
SetFPRFIfNeeded(fpr.RX(d));
fpr.UnlockAll();
}