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armjit: Preserve immediates more in nor.

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Unknown W. Brackets 2013-11-08 10:05:31 -08:00
parent d7e42b26a3
commit 8393d4aaae
1 changed files with 19 additions and 3 deletions
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22
Core/MIPS/ARM/ArmCompALU.cpp
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@ -303,9 +303,25 @@ namespace MIPSComp
break;
case 39: // R(rd) = ~(R(rs) | R(rt)); break; //nor
if (gpr.IsImm(rt) && gpr.GetImm(rt) == 0) {
gpr.MapDirtyIn(rd, rs);
MVN(gpr.R(rd), gpr.R(rs));
if (gpr.IsImm(rs) && gpr.IsImm(rt)) {
gpr.SetImm(rd, ~(gpr.GetImm(rs) | gpr.GetImm(rt)));
} else if (gpr.IsImm(rs) || gpr.IsImm(rt)) {
int lhs = gpr.IsImm(rs) ? rt : rs;
int rhs = gpr.IsImm(rs) ? rs : rt;
u32 rhsImm = gpr.GetImm(rhs);
Operand2 op2;
if (TryMakeOperand2(rhsImm, op2)) {
gpr.MapDirtyIn(rd, lhs);
} else {
gpr.MapDirtyInIn(rd, rs, rt);
op2 = gpr.R(rhs);
}
if (rhsImm == 0) {
MVN(gpr.R(rd), gpr.R(lhs));
} else {
ORR(gpr.R(rd), gpr.R(lhs), op2);
MVN(gpr.R(rd), gpr.R(rd));
}
} else {
gpr.MapDirtyInIn(rd, rs, rt);
ORR(gpr.R(rd), gpr.R(rs), gpr.R(rt));