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Merge pull request #3685 from degasus/arm 

JitArm64: Optimize addi
This commit is contained in:
Ryan Houdek 2016-03-01 09:29:42 -05:00
parent c9743c2f14 e2725792d4
commit 344a4ddc9b
3 changed files with 78 additions and 47 deletions
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3
Source/Core/Core/PowerPC/JitArm64/Jit.h
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@ -83,6 +83,7 @@ public:
void arith_imm(UGeckoInstruction inst);
void boolX(UGeckoInstruction inst);
void addx(UGeckoInstruction inst);
void addix(UGeckoInstruction inst);
void extsXx(UGeckoInstruction inst);
void cntlzwx(UGeckoInstruction inst);
void negx(UGeckoInstruction inst);
@ -249,6 +250,6 @@ private:
void ComputeCarry();
typedef u32 (*Operation)(u32, u32);
void reg_imm(u32 d, u32 a, bool binary, u32 value, Operation do_op, void (ARM64XEmitter::*op)(Arm64Gen::ARM64Reg, Arm64Gen::ARM64Reg, Arm64Gen::ARM64Reg, ArithOption), bool Rc = false);
void reg_imm(u32 d, u32 a, u32 value, Operation do_op, void (ARM64XEmitter::*op)(Arm64Gen::ARM64Reg, Arm64Gen::ARM64Reg, Arm64Gen::ARM64Reg, ArithOption), bool Rc = false);
};

118
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
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@ -77,11 +77,6 @@ void JitArm64::ComputeCarry()
}
// Following static functions are used in conjunction with reg_imm
static u32 Add(u32 a, u32 b)
{
return a + b;
}
static u32 Or(u32 a, u32 b)
{
return a | b;
@ -97,38 +92,24 @@ static u32 Xor(u32 a, u32 b)
return a ^ b;
}
void JitArm64::reg_imm(u32 d, u32 a, bool binary, u32 value, Operation do_op, void (ARM64XEmitter::*op)(ARM64Reg, ARM64Reg, ARM64Reg, ArithOption), bool Rc)
void JitArm64::reg_imm(u32 d, u32 a, u32 value, Operation do_op, void (ARM64XEmitter::*op)(ARM64Reg, ARM64Reg, ARM64Reg, ArithOption), bool Rc)
{
if (a || binary)
if (gpr.IsImm(a))
{
if (gpr.IsImm(a))
{
gpr.SetImmediate(d, do_op(gpr.GetImm(a), value));
if (Rc)
ComputeRC(gpr.GetImm(d));
}
else
{
gpr.BindToRegister(d, d == a);
ARM64Reg WA = gpr.GetReg();
MOVI2R(WA, value);
(this->*op)(gpr.R(d), gpr.R(a), WA, ArithOption(WA, ST_LSL, 0));
gpr.Unlock(WA);
if (Rc)
ComputeRC(gpr.R(d), 0);
}
}
else if (do_op == Add)
{
// a == 0, implies zero register
gpr.SetImmediate(d, value);
gpr.SetImmediate(d, do_op(gpr.GetImm(a), value));
if (Rc)
ComputeRC(value, 0);
ComputeRC(gpr.GetImm(d));
}
else
{
_assert_msg_(DYNA_REC, false, "Hit impossible condition in reg_imm!");
gpr.BindToRegister(d, d == a);
ARM64Reg WA = gpr.GetReg();
MOVI2R(WA, value);
(this->*op)(gpr.R(d), gpr.R(a), WA, ArithOption(WA, ST_LSL, 0));
gpr.Unlock(WA);
if (Rc)
ComputeRC(gpr.R(d), 0);
}
}
@ -136,42 +117,91 @@ void JitArm64::arith_imm(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
u32 d = inst.RD, a = inst.RA, s = inst.RS;
u32 a = inst.RA, s = inst.RS;
switch (inst.OPCD)
{
case 14: // addi
reg_imm(d, a, false, (u32)(s32)inst.SIMM_16, Add, &ARM64XEmitter::ADD);
break;
case 15: // addis
reg_imm(d, a, false, (u32)inst.SIMM_16 << 16, Add, &ARM64XEmitter::ADD);
break;
case 24: // ori
if (a == 0 && s == 0 && inst.UIMM == 0 && !inst.Rc) //check for nop
{
// NOP
return;
}
reg_imm(a, s, true, inst.UIMM, Or, &ARM64XEmitter::ORR);
reg_imm(a, s, inst.UIMM, Or, &ARM64XEmitter::ORR);
break;
case 25: // oris
reg_imm(a, s, true, inst.UIMM << 16, Or, &ARM64XEmitter::ORR);
reg_imm(a, s, inst.UIMM << 16, Or, &ARM64XEmitter::ORR);
break;
case 28: // andi
reg_imm(a, s, true, inst.UIMM, And, &ARM64XEmitter::AND, true);
reg_imm(a, s, inst.UIMM, And, &ARM64XEmitter::AND, true);
break;
case 29: // andis
reg_imm(a, s, true, inst.UIMM << 16, And, &ARM64XEmitter::AND, true);
reg_imm(a, s, inst.UIMM << 16, And, &ARM64XEmitter::AND, true);
break;
case 26: // xori
reg_imm(a, s, true, inst.UIMM, Xor, &ARM64XEmitter::EOR);
reg_imm(a, s, inst.UIMM, Xor, &ARM64XEmitter::EOR);
break;
case 27: // xoris
reg_imm(a, s, true, inst.UIMM << 16, Xor, &ARM64XEmitter::EOR);
reg_imm(a, s, inst.UIMM << 16, Xor, &ARM64XEmitter::EOR);
break;
}
}
void JitArm64::addix(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITIntegerOff);
u32 d = inst.RD, a = inst.RA;
u32 imm = (u32)(s32)inst.SIMM_16;
if (inst.OPCD == 15)
{
imm <<= 16;
}
u32 imm_neg = 0u - imm;
if (a)
{
if (gpr.IsImm(a))
{
gpr.SetImmediate(d, gpr.GetImm(a) + imm);
}
else
{
gpr.BindToRegister(d, d == a);
if (imm < 4096)
{
ADD(gpr.R(d), gpr.R(a), imm);
}
else if (imm % 4096 == 0 && imm < 4096 * 4096)
{
ADD(gpr.R(d), gpr.R(a), imm / 4096, true);
}
else if (imm_neg < 4096)
{
SUB(gpr.R(d), gpr.R(a), imm_neg);
}
else if (imm_neg % 4096 == 0 && imm_neg < 4096 * 4096)
{
SUB(gpr.R(d), gpr.R(a), imm_neg / 4096, true);
}
else
{
ARM64Reg WA = gpr.GetReg();
MOVI2R(WA, imm);
ADD(gpr.R(d), gpr.R(a), WA);
gpr.Unlock(WA);
}
}
}
else
{
// a == 0, implies zero register
gpr.SetImmediate(d, imm);
}
}
void JitArm64::boolX(UGeckoInstruction inst)
{
INSTRUCTION_START

4
Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
View File

@ -49,8 +49,8 @@ static GekkoOPTemplate primarytable[] =
{11, &JitArm64::cmpi}, // cmpi
{12, &JitArm64::addic}, // addic
{13, &JitArm64::addic}, // addic_rc
{14, &JitArm64::arith_imm}, // addi
{15, &JitArm64::arith_imm}, // addis
{14, &JitArm64::addix}, // addi
{15, &JitArm64::addix}, // addis
{20, &JitArm64::rlwimix}, // rlwimix
{21, &JitArm64::rlwinmx}, // rlwinmx