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PPCRec: Remove redundant FPR instructions which are no longer used

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This commit is contained in:
Exzap 2025-05-06 03:53:20 +02:00
parent bb5a7ce4ff
commit 32205a2081
7 changed files with 46 additions and 999 deletions
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35
src/Cafe/HW/Espresso/Recompiler/PPCRecompilerImlGenFPU.cpp
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@ -12,9 +12,7 @@ IMLReg _GetRegCR(ppcImlGenContext_t* ppcImlGenContext, uint8 crReg, uint8 crBit)
#define DefinePS0(name, regIndex) IMLReg name = _GetFPRRegPS0(ppcImlGenContext, regIndex);
#define DefinePS1(name, regIndex) IMLReg name = _GetFPRRegPS1(ppcImlGenContext, regIndex);
#define DefinePSX(name, regIndex, isPS1) IMLReg name = isPS1 ? _GetFPRRegPS1(ppcImlGenContext, regIndex) : _GetFPRRegPS0(ppcImlGenContext, regIndex);
#define DefineTempFPR(name, index) IMLReg name = _GetFPRTemp(ppcImlGenContext, index);
IMLReg _GetFPRRegPS0(ppcImlGenContext_t* ppcImlGenContext, uint32 regIndex)
@ -51,17 +49,6 @@ void PPRecompilerImmGen_optionalRoundBottomFPRToSinglePrecision(ppcImlGenContext
assert_dbg();
}
/*
* Rounds pair of doubles to single precision (if single precision accuracy is emulated)
*/
void PPRecompilerImmGen_optionalRoundPairFPRToSinglePrecision(ppcImlGenContext_t* ppcImlGenContext, IMLReg fprRegister, bool flushDenormals=false)
{
cemu_assert_suspicious(); // should not be used any longer
ppcImlGenContext->emitInst().make_fpr_r(PPCREC_IML_OP_FPR_ROUND_TO_SINGLE_PRECISION_PAIR, fprRegister);
if( flushDenormals )
assert_dbg();
}
bool PPCRecompilerImlGen_LFS_LFSU_LFD_LFDU(ppcImlGenContext_t* ppcImlGenContext, uint32 opcode, bool withUpdate, bool isDouble)
{
sint32 rA, frD;
@ -250,7 +237,7 @@ bool PPCRecompilerImlGen_FMUL(ppcImlGenContext_t* ppcImlGenContext, uint32 opcod
DefinePS0(fprD, frD);
// move frA to frD (if different register)
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA);
// multiply bottom double of frD with bottom double of frB
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprD, fprC);
return true;
@ -268,7 +255,7 @@ bool PPCRecompilerImlGen_FDIV(ppcImlGenContext_t* ppcImlGenContext, uint32 opcod
{
DefineTempFPR(fprTemp, 0);
// move frA to temporary register
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprTemp, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprTemp, fprA);
// divide bottom double of temporary register by bottom double of frB
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_DIVIDE_BOTTOM, fprTemp, fprB);
// move result to frD
@ -296,7 +283,7 @@ bool PPCRecompilerImlGen_FMADD(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
{
DefineTempFPR(fprTemp, 0);
// move frA to temporary register
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprTemp, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprTemp, fprA);
// multiply bottom double of temporary register with bottom double of frC
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprTemp, fprC);
// add result to frD
@ -313,7 +300,7 @@ bool PPCRecompilerImlGen_FMADD(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
}
// move frA to frD (if different register)
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA); // always copy ps0 and ps1
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA); // always copy ps0 and ps1
// multiply bottom double of frD with bottom double of frC
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprD, fprC);
// add frB
@ -333,10 +320,10 @@ bool PPCRecompilerImlGen_FMSUB(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
{
// if frB is already in frD we need a temporary register to store the product of frA*frC
DefineTempFPR(fprTemp, 0);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprTemp, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprTemp, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprTemp, fprC);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_SUB_BOTTOM, fprTemp, fprB);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprTemp);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprTemp);
return false;
}
if( frD == frC )
@ -348,7 +335,7 @@ bool PPCRecompilerImlGen_FMSUB(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
}
// move frA to frD
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA);
// multiply bottom double of frD with bottom double of frC
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprD, fprC);
// sub frB
@ -423,7 +410,7 @@ bool PPCRecompilerImlGen_FMULS(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
DefinePS0(fprD, frD);
// move frA to frD (if different register)
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA);
// multiply bottom double of frD with bottom double of frB
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_MULTIPLY_BOTTOM, fprD, fprC);
// adjust accuracy
@ -445,7 +432,7 @@ bool PPCRecompilerImlGen_FDIVS(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
{
DefineTempFPR(fprTemp, 0);
// move frA to temporary register
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprTemp, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprTemp, fprA);
// divide bottom double of temporary register by bottom double of frB
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_DIVIDE_BOTTOM, fprTemp, fprB);
// move result to frD
@ -457,7 +444,7 @@ bool PPCRecompilerImlGen_FDIVS(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
}
// move frA to frD (if different register)
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA);
// subtract bottom double of frB from bottom double of frD
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_DIVIDE_BOTTOM, fprD, fprB);
// adjust accuracy
@ -483,7 +470,7 @@ bool PPCRecompilerImlGen_FADDS(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
DefinePS0(fprD, frD);
// move frA to frD (if different register)
if( frD != frA )
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_ASSIGN, fprD, fprA);
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_COPY_BOTTOM_TO_BOTTOM, fprD, fprA);
// add bottom double of frD and bottom double of frB
ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_ADD_BOTTOM, fprD, fprB);
// adjust accuracy