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JitArm64: Call rlwinmx implementation from rlwnmx with imm b 

This way we get some additional optimized cases for rlwnmx with imm b.
This commit is contained in:
JosJuice 2023-12-17 17:00:41 +01:00
parent e6c85bf8f0
commit 26de2a7feb
2 changed files with 36 additions and 40 deletions
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2
Source/Core/Core/PowerPC/JitArm64/Jit.h
View File

@ -182,6 +182,8 @@ public:
bool IsFPRStoreSafe(size_t guest_reg) const;
void rlwinmx_internal(UGeckoInstruction inst, u32 sh);
protected:
struct FastmemArea
{

74
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
View File

@ -757,16 +757,14 @@ void JitArm64::cmpli(UGeckoInstruction inst)
SUBI2R(CR, EncodeRegTo64(gpr.R(a)), B, CR);
}
void JitArm64::rlwinmx(UGeckoInstruction inst)
void JitArm64::rlwinmx_internal(UGeckoInstruction inst, u32 sh)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
u32 a = inst.RA, s = inst.RS;
const u32 mask = MakeRotationMask(inst.MB, inst.ME);
if (gpr.IsImm(inst.RS))
{
gpr.SetImmediate(a, std::rotl(gpr.GetImm(s), inst.SH) & mask);
gpr.SetImmediate(a, std::rotl(gpr.GetImm(s), sh) & mask);
if (inst.Rc)
ComputeRC0(gpr.GetImm(a));
return;
@ -774,35 +772,35 @@ void JitArm64::rlwinmx(UGeckoInstruction inst)
gpr.BindToRegister(a, a == s);
if (!inst.SH && mask == 0xFFFFFFFF)
if (sh == 0 && mask == 0xFFFFFFFF)
{
if (a != s)
MOV(gpr.R(a), gpr.R(s));
}
else if (!inst.SH)
else if (sh == 0)
{
// Immediate mask
AND(gpr.R(a), gpr.R(s), LogicalImm(mask, GPRSize::B32));
}
else if (mask == 0xFFFFFFFF)
{
ROR(gpr.R(a), gpr.R(s), 32 - inst.SH);
ROR(gpr.R(a), gpr.R(s), 32 - sh);
}
else if (inst.ME == 31 && 31 < inst.SH + inst.MB)
else if (inst.ME == 31 && 31 < sh + inst.MB)
{
// Bit select of the upper part
UBFX(gpr.R(a), gpr.R(s), 32 - inst.SH, 32 - inst.MB);
UBFX(gpr.R(a), gpr.R(s), 32 - sh, 32 - inst.MB);
}
else if (inst.ME == 31 - inst.SH && 32 > inst.SH + inst.MB)
else if (inst.ME == 31 - sh && 32 > sh + inst.MB)
{
// Bit select of the lower part
UBFIZ(gpr.R(a), gpr.R(s), inst.SH, 32 - inst.SH - inst.MB);
UBFIZ(gpr.R(a), gpr.R(s), sh, 32 - sh - inst.MB);
}
else
{
ARM64Reg WA = gpr.GetReg();
MOVI2R(WA, mask);
AND(gpr.R(a), WA, gpr.R(s), ArithOption(gpr.R(s), ShiftType::ROR, 32 - inst.SH));
AND(gpr.R(a), WA, gpr.R(s), ArithOption(gpr.R(s), ShiftType::ROR, 32 - sh));
gpr.Unlock(WA);
}
@ -810,41 +808,37 @@ void JitArm64::rlwinmx(UGeckoInstruction inst)
ComputeRC0(gpr.R(a));
}
void JitArm64::rlwinmx(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
rlwinmx_internal(inst, inst.SH);
}
void JitArm64::rlwnmx(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
const u32 a = inst.RA, b = inst.RB, s = inst.RS;
if (gpr.IsImm(b))
{
rlwinmx_internal(inst, gpr.GetImm(b) & 0x1F);
return;
}
const u32 mask = MakeRotationMask(inst.MB, inst.ME);
if (gpr.IsImm(b) && gpr.IsImm(s))
{
gpr.SetImmediate(a, std::rotl(gpr.GetImm(s), gpr.GetImm(b) & 0x1F) & mask);
if (inst.Rc)
ComputeRC0(gpr.GetImm(a));
}
else if (gpr.IsImm(b))
{
int imm_value = gpr.GetImm(b) & 0x1f;
gpr.BindToRegister(a, a == s);
ARM64Reg WA = gpr.GetReg();
MOVI2R(WA, mask);
AND(gpr.R(a), WA, gpr.R(s), ArithOption(gpr.R(s), ShiftType::ROR, 32 - imm_value));
gpr.Unlock(WA);
if (inst.Rc)
ComputeRC0(gpr.R(a));
}
else
{
gpr.BindToRegister(a, a == s || a == b);
ARM64Reg WA = gpr.GetReg();
NEG(WA, gpr.R(b));
RORV(gpr.R(a), gpr.R(s), WA);
ANDI2R(gpr.R(a), gpr.R(a), mask, WA);
gpr.Unlock(WA);
if (inst.Rc)
ComputeRC0(gpr.R(a));
}
gpr.BindToRegister(a, a == s || a == b);
ARM64Reg WA = gpr.GetReg();
NEG(WA, gpr.R(b));
RORV(gpr.R(a), gpr.R(s), WA);
ANDI2R(gpr.R(a), gpr.R(a), mask, WA);
gpr.Unlock(WA);
if (inst.Rc)
ComputeRC0(gpr.R(a));
}
void JitArm64::srawix(UGeckoInstruction inst)