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[Jit64] Register-based shift instructions optimized on 64-bit processors

This commit is contained in:
calc84maniac 2012-01-22 21:54:39 -05:00
parent a7f3f61598
commit fd616ccb0c
1 changed files with 66 additions and 6 deletions
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64
Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp
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@ -1904,6 +1904,19 @@ void Jit64::srwx(UGeckoInstruction inst)
}
else
{
#ifdef _M_X64
gpr.FlushLockX(ECX);
gpr.Lock(a, b, s);
gpr.BindToRegister(a, (a == b || a == s), true);
MOV(32, R(ECX), gpr.R(b));
if (a != s)
{
MOV(32, gpr.R(a), gpr.R(s));
}
SHR(64, gpr.R(a), R(ECX));
gpr.UnlockAll();
gpr.UnlockAllX();
#else
gpr.FlushLockX(ECX);
gpr.Lock(a, b, s);
gpr.BindToRegister(a, (a == b || a == s), true);
@ -1919,6 +1932,7 @@ void Jit64::srwx(UGeckoInstruction inst)
SHR(32, gpr.R(a), R(ECX));
gpr.UnlockAll();
gpr.UnlockAllX();
#endif
}
// Shift of 0 doesn't update flags, so compare manually just in case
if (inst.Rc)
@ -1939,9 +1953,35 @@ void Jit64::slwx(UGeckoInstruction inst)
{
u32 amount = (u32)gpr.R(b).offset;
gpr.SetImmediate32(a, (amount & 0x20) ? 0 : (u32)gpr.R(s).offset << amount);
if (inst.Rc)
{
ComputeRC(gpr.R(a));
}
}
else
{
#ifdef _M_X64
gpr.FlushLockX(ECX);
gpr.Lock(a, b, s);
gpr.BindToRegister(a, (a == b || a == s), true);
MOV(32, R(ECX), gpr.R(b));
if (a != s)
{
MOV(32, gpr.R(a), gpr.R(s));
}
SHL(64, gpr.R(a), R(ECX));
if (inst.Rc)
{
AND(32, gpr.R(a), gpr.R(a));
GenerateRC();
}
else
{
MOV(32, gpr.R(a), gpr.R(a));
}
gpr.UnlockAll();
gpr.UnlockAllX();
#else
gpr.FlushLockX(ECX);
gpr.Lock(a, b, s);
gpr.BindToRegister(a, (a == b || a == s), true);
@ -1957,12 +1997,13 @@ void Jit64::slwx(UGeckoInstruction inst)
SHL(32, gpr.R(a), R(ECX));
gpr.UnlockAll();
gpr.UnlockAllX();
}
// Shift of 0 doesn't update flags, so compare manually just in case
if (inst.Rc)
{
ComputeRC(gpr.R(a));
}
#endif
}
}
void Jit64::srawx(UGeckoInstruction inst)
@ -1973,6 +2014,25 @@ void Jit64::srawx(UGeckoInstruction inst)
int a = inst.RA;
int b = inst.RB;
int s = inst.RS;
#ifdef _M_X64
gpr.Lock(a, s, b);
gpr.FlushLockX(ECX);
gpr.BindToRegister(a, (a == s || a == b), true);
JitClearCA();
MOV(32, R(ECX), gpr.R(b));
if (a != s)
MOV(32, gpr.R(a), gpr.R(s));
SHL(64, gpr.R(a), Imm8(32));
SAR(64, gpr.R(a), R(ECX));
MOV(32, R(EAX), gpr.R(a));
SHR(64, gpr.R(a), Imm8(32));
TEST(32, gpr.R(a), R(EAX));
FixupBranch nocarry = J_CC(CC_Z);
JitSetCA();
SetJumpTarget(nocarry);
gpr.UnlockAll();
gpr.UnlockAllX();
#else
gpr.Lock(a, s, b);
gpr.FlushLockX(ECX);
gpr.BindToRegister(a, (a == s || a == b), true);
@ -1998,7 +2058,7 @@ void Jit64::srawx(UGeckoInstruction inst)
SetJumpTarget(nocarry2);
gpr.UnlockAll();
gpr.UnlockAllX();
#endif
if (inst.Rc) {
ComputeRC(gpr.R(a));
}