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JitArm64: Optimize fpr.R()

This commit is contained in:
degasus 2015-09-02 22:45:38 +02:00
parent dfd44730c8
commit 5797111ef0
1 changed files with 6 additions and 26 deletions
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32
Source/Core/Core/PowerPC/JitArm64/JitArm64_RegCache.cpp
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@ -331,11 +331,6 @@ ARM64Reg Arm64FPRCache::R(u32 preg, RegType type)
// Change it over to a full 128bit register // Change it over to a full 128bit register
reg.LoadToReg(reg.GetReg()); reg.LoadToReg(reg.GetReg());
} }
else if (type == REG_DUP)
{
// We already only have the lower 64bits
// Don't do anything
}
return reg.GetReg(); return reg.GetReg();
} }
break; break;
@ -350,16 +345,6 @@ ARM64Reg Arm64FPRCache::R(u32 preg, RegType type)
m_float_emit->INS(64, host_reg, 1, host_reg, 0); m_float_emit->INS(64, host_reg, 1, host_reg, 0);
reg.LoadToReg(host_reg); reg.LoadToReg(host_reg);
} }
else if (type == REG_LOWER_PAIR)
{
// We are only requesting the lower 64bits of a pair
// We've got to be careful in this instance
// Store our current duplicated high bits to the file
// then convert over to a lower reg
if (reg.IsDirty())
m_float_emit->STR(64, INDEX_UNSIGNED, host_reg, X29, PPCSTATE_OFF(ps[preg][1]));
reg.LoadLowerReg(host_reg);
}
return host_reg; return host_reg;
} }
break; break;
@ -367,21 +352,16 @@ ARM64Reg Arm64FPRCache::R(u32 preg, RegType type)
{ {
ARM64Reg host_reg = GetReg(); ARM64Reg host_reg = GetReg();
u32 load_size; u32 load_size;
if (type == REG_LOWER_PAIR) if (type == REG_REG)
{
load_size = 64;
reg.LoadLowerReg(host_reg);
}
else if (type == REG_DUP)
{
load_size = 64;
reg.LoadDup(host_reg);
}
else
{ {
load_size = 128; load_size = 128;
reg.LoadToReg(host_reg); reg.LoadToReg(host_reg);
} }
else
{
load_size = 64;
reg.LoadLowerReg(host_reg);
}
reg.SetDirty(false); reg.SetDirty(false);
m_float_emit->LDR(load_size, INDEX_UNSIGNED, host_reg, X29, PPCSTATE_OFF(ps[preg][0])); m_float_emit->LDR(load_size, INDEX_UNSIGNED, host_reg, X29, PPCSTATE_OFF(ps[preg][0]));
return host_reg; return host_reg;