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Implemented jit'ing of floating point compare operations in the IL

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3312 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
LinesPrower 2009-06-03 13:14:03 +00:00
parent b46e8ab1b8
commit 074fe9c9ea
3 changed files with 27 additions and 5 deletions
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21
Source/Core/Core/Src/PowerPC/Jit64IL/IR.cpp
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@ -257,6 +257,10 @@ InstLoc IRBuilder::FoldZeroOp(unsigned Opcode, unsigned extra) {
FRegCache[extra] = EmitZeroOp(LoadFReg, extra);
return FRegCache[extra];
}
if (Opcode == LoadFRegDENToZero) {
// cant use cache here
return EmitZeroOp(LoadFRegDENToZero, extra);
}
if (Opcode == LoadCarry) {
if (!CarryCache)
CarryCache = EmitZeroOp(LoadCarry, extra);
@ -1313,6 +1317,7 @@ static void DoWriteCode(IRBuilder* ibuild, Jit64* Jit, bool UseProfile) {
case LoadCTR:
case LoadMSR:
case LoadFReg:
case LoadFRegDENToZero:
case LoadGQR:
case BlockEnd:
case BlockStart:
@ -1981,6 +1986,22 @@ static void DoWriteCode(IRBuilder* ibuild, Jit64* Jit, bool UseProfile) {
Jit->MOVAPD(reg, M(&PowerPC::ppcState.ps[ppcreg]));
RI.fregs[reg] = I;
break;
}
case LoadFRegDENToZero: {
if (!thisUsed) break;
X64Reg reg = fregFindFreeReg(RI);
unsigned ppcreg = *I >> 8;
char *p = (char*)&(PowerPC::ppcState.ps[ppcreg][0]);
Jit->MOV(32, R(ECX), M(p+4));
Jit->AND(32, R(ECX), Imm32(0x7ff00000));
Jit->CMP(32, R(ECX), Imm32(0x38000000));
FixupBranch ok = Jit->J_CC(CC_AE);
Jit->AND(32, M(p+4), Imm32(0x80000000));
Jit->MOV(32, M(p), Imm32(0));
Jit->SetJumpTarget(ok);
Jit->MOVAPD(reg, M(&PowerPC::ppcState.ps[ppcreg]));
RI.fregs[reg] = I;
break;
}
case StoreFReg: {
unsigned ppcreg = *I >> 16;

4
Source/Core/Core/Src/PowerPC/Jit64IL/IR.h
View File

@ -119,6 +119,7 @@ namespace IREmitter {
ExpandPackedToMReg,
CompactMRegToPacked,
LoadFReg,
LoadFRegDENToZero,
FSMul,
FSAdd,
FSSub,
@ -411,6 +412,9 @@ namespace IREmitter {
InstLoc EmitLoadFReg(unsigned freg) {
return FoldZeroOp(LoadFReg, freg);
}
InstLoc EmitLoadFRegDENToZero(unsigned freg) {
return FoldZeroOp(LoadFRegDENToZero, freg);
}
InstLoc EmitStoreFReg(InstLoc val, unsigned freg) {
return FoldUOp(StoreFReg, val, freg);
}

7
Source/Core/Core/Src/PowerPC/Jit64IL/Jit_FloatingPoint.cpp
View File

@ -102,14 +102,11 @@
void Jit64::fcmpx(UGeckoInstruction inst)
{
// @TODO: conform this to the new fcmpo
Default(inst); return;
INSTRUCTION_START
JITDISABLE(FloatingPoint)
IREmitter::InstLoc lhs, rhs, res;
lhs = ibuild.EmitLoadFReg(inst.FA);
rhs = ibuild.EmitLoadFReg(inst.FB);
lhs = ibuild.EmitLoadFRegDENToZero(inst.FA);
rhs = ibuild.EmitLoadFRegDENToZero(inst.FB);
res = ibuild.EmitFDCmpCR(lhs, rhs);
ibuild.EmitStoreFPRF(res);
ibuild.EmitStoreCR(res, inst.CRFD);