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Jit: Move subfic to ConstantPropagation

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This commit is contained in:
JosJuice 2024-08-31 16:29:29 +02:00
parent 204a8fbd53
commit c7d8a0b276
4 changed files with 34 additions and 36 deletions
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8
Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp
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@ -1042,14 +1042,6 @@ void Jit64::subfic(UGeckoInstruction inst)
JITDISABLE(bJITIntegerOff);
int a = inst.RA, d = inst.RD, imm = inst.SIMM_16;
if (gpr.IsImm(a))
{
u32 i = imm, j = gpr.Imm32(a);
gpr.SetImmediate32(d, i - j);
FinalizeCarry(j == 0 || (i > j - 1));
return;
}
RCOpArg Ra = gpr.Use(a, RCMode::Read);
RCX64Reg Rd = gpr.Bind(d, RCMode::Write);
RegCache::Realize(Ra, Rd);

10
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
View File

@ -1381,15 +1381,6 @@ void JitArm64::subfic(UGeckoInstruction inst)
int a = inst.RA, d = inst.RD;
s32 imm = inst.SIMM_16;
if (gpr.IsImm(a))
{
u32 a_imm = gpr.GetImm(a);
gpr.SetImmediate(d, imm - a_imm);
ComputeCarry(a_imm == 0 || Interpreter::Helper_Carry(imm, 0u - a_imm));
}
else
{
const bool will_read = d == a;
gpr.BindToRegister(d, will_read);
ARM64Reg RD = gpr.R(d);
@ -1420,7 +1411,6 @@ void JitArm64::subfic(UGeckoInstruction inst)
ComputeCarry();
}
}
}
void JitArm64::addex(UGeckoInstruction inst)
{

15
Source/Core/Core/PowerPC/JitCommon/ConstantPropagation.cpp
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@ -33,6 +33,8 @@ ConstantPropagationResult ConstantPropagation::EvaluateInstruction(UGeckoInstruc
{
case 7: // mulli
return EvaluateMulImm(inst);
case 8: // subfic
return EvaluateSubImmCarry(inst);
case 12: // addic
case 13: // addic.
return EvaluateAddImmCarry(inst);
@ -73,6 +75,19 @@ ConstantPropagationResult ConstantPropagation::EvaluateMulImm(UGeckoInstruction
return ConstantPropagationResult(inst.RD, m_gpr_values[inst.RA] * inst.SIMM_16);
}
ConstantPropagationResult ConstantPropagation::EvaluateSubImmCarry(UGeckoInstruction inst) const
{
if (!HasGPR(inst.RA))
return {};
const u32 a = GetGPR(inst.RA);
const u32 imm = s32(inst.SIMM_16);
ConstantPropagationResult result(inst.RD, imm - a);
result.carry = imm >= a;
return result;
}
ConstantPropagationResult ConstantPropagation::EvaluateAddImm(UGeckoInstruction inst) const
{
const s32 immediate = inst.OPCD & 1 ? inst.SIMM_16 << 16 : inst.SIMM_16;

1
Source/Core/Core/PowerPC/JitCommon/ConstantPropagation.h
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@ -78,6 +78,7 @@ public:
private:
ConstantPropagationResult EvaluateMulImm(UGeckoInstruction inst) const;
ConstantPropagationResult EvaluateSubImmCarry(UGeckoInstruction inst) const;
ConstantPropagationResult EvaluateAddImm(UGeckoInstruction inst) const;
ConstantPropagationResult EvaluateAddImmCarry(UGeckoInstruction inst) const;
ConstantPropagationResult EvaluateRlwinmxRlwnmx(UGeckoInstruction inst, u32 shift) const;