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JitIL: A bit more constant folding, and a bit of cleanup. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2235 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
magumagu9 2009-02-14 01:00:37 +00:00
parent 39b7fe10f7
commit 94ee9afdb2
2 changed files with 59 additions and 19 deletions
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40
Source/Core/Core/Src/PowerPC/Jit64IL/IR.cpp
View File

@ -569,6 +569,42 @@ InstLoc IRBuilder::FoldICmp(unsigned Opcode, InstLoc Op1, InstLoc Op2) {
return EmitBiOp(Opcode, Op1, Op2);
}
InstLoc IRBuilder::FoldICmpCRSigned(InstLoc Op1, InstLoc Op2) {
if (isImm(*Op1)) {
if (isImm(*Op2)) {
int c1 = (int)GetImmValue(Op1),
c2 = (int)GetImmValue(Op2),
result;
if (c1 == c2)
result = 2;
else if (c1 > c2)
result = 4;
else
result = 8;
return EmitIntConst(result);
}
}
return EmitBiOp(ICmpCRSigned, Op1, Op2);
}
InstLoc IRBuilder::FoldICmpCRUnsigned(InstLoc Op1, InstLoc Op2) {
if (isImm(*Op1)) {
if (isImm(*Op2)) {
unsigned int c1 = GetImmValue(Op1),
c2 = GetImmValue(Op2),
result;
if (c1 == c2)
result = 2;
else if (c1 > c2)
result = 4;
else
result = 8;
return EmitIntConst(result);
}
}
return EmitBiOp(ICmpCRUnsigned, Op1, Op2);
}
InstLoc IRBuilder::FoldInterpreterFallback(InstLoc Op1, InstLoc Op2) {
for (unsigned i = 0; i < 32; i++) {
GRegCache[i] = 0;
@ -614,6 +650,8 @@ InstLoc IRBuilder::FoldBiOp(unsigned Opcode, InstLoc Op1, InstLoc Op2, unsigned
case ICmpUgt: case ICmpUlt: case ICmpUge: case ICmpUle:
case ICmpSgt: case ICmpSlt: case ICmpSge: case ICmpSle:
return FoldICmp(Opcode, Op1, Op2);
case ICmpCRSigned: return FoldICmpCRSigned(Op1, Op2);
case ICmpCRUnsigned: return FoldICmpCRUnsigned(Op1, Op2);
case InterpreterFallback: return FoldInterpreterFallback(Op1, Op2);
case FDMul: case FDAdd: case FDSub: return FoldDoubleBiOp(Opcode, Op1, Op2);
default: return EmitBiOp(Opcode, Op1, Op2, extra);
@ -1723,7 +1761,7 @@ static void DoWriteCode(IRBuilder* ibuild, Jit64* Jit, bool UseProfile) {
regSpill(RI, EDX);
X64Reg reg = fregFindFreeReg(RI);
unsigned int quantreg = *I >> 16;
Jit->MOVZX(32, 16, EAX, M(((char *)&PowerPC::ppcState.spr[SPR_GQR0 + quantreg]) + 2));
Jit->MOVZX(32, 16, EAX, M(((char *)&GQR(quantreg)) + 2));
Jit->MOVZX(32, 8, EDX, R(AL));
// FIXME: Fix ModR/M encoding to allow [EDX*4+disp32]! (MComplex can do this, no?)
#ifdef _M_IX86

2
Source/Core/Core/Src/PowerPC/Jit64IL/IR.h
View File

@ -220,6 +220,8 @@ namespace IREmitter {
InstLoc FoldXor(InstLoc Op1, InstLoc Op2);
InstLoc FoldBranchCond(InstLoc Op1, InstLoc Op2);
InstLoc FoldICmp(unsigned Opcode, InstLoc Op1, InstLoc Op2);
InstLoc FoldICmpCRSigned(InstLoc Op1, InstLoc Op2);
InstLoc FoldICmpCRUnsigned(InstLoc Op1, InstLoc Op2);
InstLoc FoldDoubleBiOp(unsigned Opcode, InstLoc Op1, InstLoc Op2);
InstLoc FoldInterpreterFallback(InstLoc Op1, InstLoc Op2);