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DSPJitRegCache: Make GetReg return by value 

Using out-references for this sort of thing is a C++03-ism.
This commit is contained in:
Lioncash 2017-01-24 21:32:08 -05:00
parent eed64bb0fe
commit 3734d6f16c
7 changed files with 43 additions and 65 deletions
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6
Source/Core/Core/DSP/Jit/DSPJitArithmetic.cpp
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@ -79,8 +79,7 @@ void DSPEmitter::andcf(const UDSPInstruction opc)
// g_dsp.r.sr |= SR_LOGIC_ZERO;
// else
// g_dsp.r.sr &= ~SR_LOGIC_ZERO;
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
AND(16, R(RAX), Imm16(imm));
CMP(16, R(RAX), Imm16(imm));
FixupBranch notLogicZero = J_CC(CC_NE);
@ -115,8 +114,7 @@ void DSPEmitter::andf(const UDSPInstruction opc)
// g_dsp.r.sr |= SR_LOGIC_ZERO;
// else
// g_dsp.r.sr &= ~SR_LOGIC_ZERO;
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
TEST(16, R(RAX), Imm16(imm));
FixupBranch notLogicZero = J_CC(CC_NE);
OR(16, sr_reg, Imm16(SR_LOGIC_ZERO));

15
Source/Core/Core/DSP/Jit/DSPJitCCUtil.cpp
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@ -19,8 +19,7 @@ namespace x86
// Clobbers RDX
void DSPEmitter::Update_SR_Register(Gen::X64Reg val)
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
// // 0x04
// if (_Value == 0) g_dsp.r[DSP_REG_SR] |= SR_ARITH_ZERO;
TEST(64, R(val), R(val));
@ -63,8 +62,7 @@ void DSPEmitter::Update_SR_Register(Gen::X64Reg val)
void DSPEmitter::Update_SR_Register64(Gen::X64Reg val)
{
// g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
AND(16, sr_reg, Imm16(~SR_CMP_MASK));
gpr.PutReg(DSP_REG_SR);
Update_SR_Register(val);
@ -75,8 +73,7 @@ void DSPEmitter::Update_SR_Register64(Gen::X64Reg val)
// Clobbers RDX
void DSPEmitter::Update_SR_Register64_Carry(X64Reg val, X64Reg carry_ovfl, bool carry_eq)
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
// g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
AND(16, sr_reg, Imm16(~SR_CMP_MASK));
@ -115,8 +112,7 @@ void DSPEmitter::Update_SR_Register64_Carry(X64Reg val, X64Reg carry_ovfl, bool
// In: RAX: s64 _Value
void DSPEmitter::Update_SR_Register16(X64Reg val)
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
AND(16, sr_reg, Imm16(~SR_CMP_MASK));
// // 0x04
@ -152,8 +148,7 @@ void DSPEmitter::Update_SR_Register16(X64Reg val)
// Clobbers RCX
void DSPEmitter::Update_SR_Register16_OverS32(Gen::X64Reg val)
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
AND(16, sr_reg, Imm16(~SR_CMP_MASK));
// // 0x10

6
Source/Core/Core/DSP/Jit/DSPJitMisc.cpp
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@ -118,8 +118,7 @@ void DSPEmitter::addarn(const UDSPInstruction opc)
void DSPEmitter::setCompileSR(u16 bit)
{
// g_dsp.r[DSP_REG_SR] |= bit
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
OR(16, sr_reg, Imm16(bit));
gpr.PutReg(DSP_REG_SR);
@ -129,8 +128,7 @@ void DSPEmitter::setCompileSR(u16 bit)
void DSPEmitter::clrCompileSR(u16 bit)
{
// g_dsp.r[DSP_REG_SR] &= bit
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
AND(16, sr_reg, Imm16(~bit));
gpr.PutReg(DSP_REG_SR);

6
Source/Core/Core/DSP/Jit/DSPJitMultiplier.cpp
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@ -28,8 +28,7 @@ void DSPEmitter::multiply()
// Conditionally multiply by 2.
// if ((g_dsp.r.sr & SR_MUL_MODIFY) == 0)
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
TEST(16, sr_reg, Imm16(SR_MUL_MODIFY));
FixupBranch noMult2 = J_CC(CC_NZ);
// prod <<= 1;
@ -81,8 +80,7 @@ void DSPEmitter::multiply_mulx(u8 axh0, u8 axh1)
// result = dsp_multiply(val1, val2, 0); // unsigned support OFF if both ax?.h regs are used
// if ((sign == 1) && (g_dsp.r.sr & SR_MUL_UNSIGNED)) //unsigned
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
TEST(16, sr_reg, Imm16(SR_MUL_UNSIGNED));
FixupBranch unsignedMul = J_CC(CC_NZ);
// prod = (s16)a * (s16)b; //signed

12
Source/Core/Core/DSP/Jit/DSPJitRegCache.cpp
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@ -689,7 +689,7 @@ void DSPJitRegCache::MovToMemory(size_t reg)
m_regs[reg].loc = tmp;
}
void DSPJitRegCache::GetReg(int reg, OpArg& oparg, bool load)
OpArg DSPJitRegCache::GetReg(int reg, bool load)
{
int real_reg;
int shift;
@ -723,7 +723,7 @@ void DSPJitRegCache::GetReg(int reg, OpArg& oparg, bool load)
_assert_msg_(DSPLLE, m_regs[real_reg].loc.IsSimpleReg(), "did not get host reg for %d", reg);
RotateHostReg(real_reg, shift, load);
oparg = m_regs[real_reg].loc;
const OpArg oparg = m_regs[real_reg].loc;
m_regs[real_reg].used = true;
// do some register specific fixup
@ -742,6 +742,8 @@ void DSPJitRegCache::GetReg(int reg, OpArg& oparg, bool load)
default:
break;
}
return oparg;
}
void DSPJitRegCache::PutReg(int reg, bool dirty)
@ -808,8 +810,7 @@ void DSPJitRegCache::PutReg(int reg, bool dirty)
void DSPJitRegCache::ReadReg(int sreg, X64Reg host_dreg, DSPJitSignExtend extend)
{
OpArg reg;
GetReg(sreg, reg);
const OpArg reg = GetReg(sreg);
switch (m_regs[sreg].size)
{
@ -853,8 +854,7 @@ void DSPJitRegCache::ReadReg(int sreg, X64Reg host_dreg, DSPJitSignExtend extend
void DSPJitRegCache::WriteReg(int dreg, OpArg arg)
{
OpArg reg;
GetReg(dreg, reg, false);
const OpArg reg = GetReg(dreg, false);
if (arg.IsImm())
{
switch (m_regs[dreg].size)

2
Source/Core/Core/DSP/Jit/DSPJitRegCache.h
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@ -119,7 +119,7 @@ public:
// Gives no SCALE_RIP with abs(offset) >= 0x80000000
// 32/64 bit writes allowed when the register has a _64 or _32 suffix
// only 16 bit writes allowed without any suffix.
void GetReg(int reg, Gen::OpArg& oparg, bool load = true);
Gen::OpArg GetReg(int reg, bool load = true);
// Done with all usages of OpArg above
void PutReg(int reg, bool dirty = true);

61
Source/Core/Core/DSP/Jit/DSPJitUtil.cpp
View File

@ -145,8 +145,7 @@ void DSPEmitter::dsp_conditional_extend_accum(int reg)
case DSP_REG_ACM0:
case DSP_REG_ACM1:
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
DSPJitRegCache c(gpr);
TEST(16, sr_reg, Imm16(SR_40_MODE_BIT));
FixupBranch not_40bit = J_CC(CC_Z, true);
@ -175,8 +174,7 @@ void DSPEmitter::dsp_conditional_extend_accum_imm(int reg, u16 val)
case DSP_REG_ACM0:
case DSP_REG_ACM1:
{
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
DSPJitRegCache c(gpr);
TEST(16, sr_reg, Imm16(SR_40_MODE_BIT));
FixupBranch not_40bit = J_CC(CC_Z, true);
@ -250,10 +248,8 @@ void DSPEmitter::dsp_op_read_reg(int reg, Gen::X64Reg host_dreg, DSPJitSignExten
case DSP_REG_ACM1:
{
// we already know this is ACCM0 or ACCM1
OpArg acc_reg;
gpr.GetReg(reg - DSP_REG_ACM0 + DSP_REG_ACC0_64, acc_reg);
OpArg sr_reg;
gpr.GetReg(DSP_REG_SR, sr_reg);
const OpArg acc_reg = gpr.GetReg(reg - DSP_REG_ACM0 + DSP_REG_ACC0_64);
const OpArg sr_reg = gpr.GetReg(DSP_REG_SR);
DSPJitRegCache c(gpr);
TEST(16, sr_reg, Imm16(SR_40_MODE_BIT));
@ -311,13 +307,13 @@ void DSPEmitter::dsp_op_read_reg(int reg, Gen::X64Reg host_dreg, DSPJitSignExten
// EDX = g_dsp.r.wr[reg]
void DSPEmitter::increment_addr_reg(int reg)
{
OpArg ar_reg;
OpArg wr_reg;
gpr.GetReg(DSP_REG_WR0 + reg, wr_reg);
const OpArg wr_reg = gpr.GetReg(DSP_REG_WR0 + reg);
MOVZX(32, 16, EDX, wr_reg);
gpr.PutReg(DSP_REG_WR0 + reg, false);
gpr.GetReg(DSP_REG_AR0 + reg, ar_reg);
const OpArg ar_reg = gpr.GetReg(DSP_REG_AR0 + reg);
MOVZX(32, 16, EAX, ar_reg);
X64Reg tmp1 = gpr.GetFreeXReg();
// u32 nar = ar + 1;
MOV(32, R(tmp1), R(EAX));
@ -344,12 +340,11 @@ void DSPEmitter::increment_addr_reg(int reg)
// EDX = g_dsp.r.wr[reg]
void DSPEmitter::decrement_addr_reg(int reg)
{
OpArg ar_reg;
OpArg wr_reg;
gpr.GetReg(DSP_REG_WR0 + reg, wr_reg);
const OpArg wr_reg = gpr.GetReg(DSP_REG_WR0 + reg);
MOVZX(32, 16, EDX, wr_reg);
gpr.PutReg(DSP_REG_WR0 + reg, false);
gpr.GetReg(DSP_REG_AR0 + reg, ar_reg);
const OpArg ar_reg = gpr.GetReg(DSP_REG_AR0 + reg);
MOVZX(32, 16, EAX, ar_reg);
X64Reg tmp1 = gpr.GetFreeXReg();
@ -381,16 +376,15 @@ void DSPEmitter::decrement_addr_reg(int reg)
// ECX = g_dsp.r.ix[reg]
void DSPEmitter::increase_addr_reg(int reg, int _ix_reg)
{
OpArg ar_reg;
OpArg wr_reg;
OpArg ix_reg;
gpr.GetReg(DSP_REG_WR0 + reg, wr_reg);
const OpArg wr_reg = gpr.GetReg(DSP_REG_WR0 + reg);
MOVZX(32, 16, EDX, wr_reg);
gpr.PutReg(DSP_REG_WR0 + reg, false);
gpr.GetReg(DSP_REG_IX0 + _ix_reg, ix_reg);
const OpArg ix_reg = gpr.GetReg(DSP_REG_IX0 + _ix_reg);
MOVSX(32, 16, ECX, ix_reg);
gpr.PutReg(DSP_REG_IX0 + _ix_reg, false);
gpr.GetReg(DSP_REG_AR0 + reg, ar_reg);
const OpArg ar_reg = gpr.GetReg(DSP_REG_AR0 + reg);
MOVZX(32, 16, EAX, ar_reg);
X64Reg tmp1 = gpr.GetFreeXReg();
@ -449,16 +443,15 @@ void DSPEmitter::increase_addr_reg(int reg, int _ix_reg)
// ECX = g_dsp.r.ix[reg]
void DSPEmitter::decrease_addr_reg(int reg)
{
OpArg ar_reg;
OpArg wr_reg;
OpArg ix_reg;
gpr.GetReg(DSP_REG_WR0 + reg, wr_reg);
const OpArg wr_reg = gpr.GetReg(DSP_REG_WR0 + reg);
MOVZX(32, 16, EDX, wr_reg);
gpr.PutReg(DSP_REG_WR0 + reg, false);
gpr.GetReg(DSP_REG_IX0 + reg, ix_reg);
const OpArg ix_reg = gpr.GetReg(DSP_REG_IX0 + reg);
MOVSX(32, 16, ECX, ix_reg);
gpr.PutReg(DSP_REG_IX0 + reg, false);
gpr.GetReg(DSP_REG_AR0 + reg, ar_reg);
const OpArg ar_reg = gpr.GetReg(DSP_REG_AR0 + reg);
MOVZX(32, 16, EAX, ar_reg);
NOT(32, R(ECX)); // esi = ~ix
@ -655,8 +648,7 @@ void DSPEmitter::dmem_read_imm(u16 address)
void DSPEmitter::get_long_prod(X64Reg long_prod)
{
// s64 val = (s8)(u8)g_dsp.r[DSP_REG_PRODH];
OpArg prod_reg;
gpr.GetReg(DSP_REG_PROD_64, prod_reg);
const OpArg prod_reg = gpr.GetReg(DSP_REG_PROD_64);
MOV(64, R(long_prod), prod_reg);
gpr.PutReg(DSP_REG_PROD_64, false);
// no use in keeping prod_reg any longer.
@ -705,8 +697,7 @@ void DSPEmitter::set_long_prod()
MOV(64, R(tmp), Imm64(0x000000ffffffffffULL));
AND(64, R(RAX), R(tmp));
gpr.PutXReg(tmp);
OpArg prod_reg;
gpr.GetReg(DSP_REG_PROD_64, prod_reg, false);
const OpArg prod_reg = gpr.GetReg(DSP_REG_PROD_64, false);
// g_dsp.r[DSP_REG_PRODL] = (u16)val;
MOV(64, prod_reg, R(RAX));
@ -736,8 +727,7 @@ void DSPEmitter::round_long_acc(X64Reg long_acc)
// Returns s64 in acc
void DSPEmitter::get_long_acc(int _reg, X64Reg acc)
{
OpArg reg;
gpr.GetReg(DSP_REG_ACC0_64 + _reg, reg);
const OpArg reg = gpr.GetReg(DSP_REG_ACC0_64 + _reg);
MOV(64, R(acc), reg);
gpr.PutReg(DSP_REG_ACC0_64 + _reg, false);
}
@ -745,8 +735,7 @@ void DSPEmitter::get_long_acc(int _reg, X64Reg acc)
// In: acc = s64 val
void DSPEmitter::set_long_acc(int _reg, X64Reg acc)
{
OpArg reg;
gpr.GetReg(DSP_REG_ACC0_64 + _reg, reg, false);
const OpArg reg = gpr.GetReg(DSP_REG_ACC0_64 + _reg, false);
MOV(64, reg, R(acc));
gpr.PutReg(DSP_REG_ACC0_64 + _reg);
}