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armjit: Spill an imm armreg back to an imm.

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We might be able to avoid the store or etc.
This commit is contained in:
Unknown W. Brackets 2013-11-11 23:38:42 -08:00
parent aad70d8912
commit ac5aacbd16
1 changed files with 15 additions and 8 deletions
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23
Core/MIPS/ARM/ArmRegCache.cpp
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@ -318,17 +318,24 @@ void ArmRegCache::MapDirtyDirtyInIn(MIPSGPReg rd1, MIPSGPReg rd2, MIPSGPReg rs,
void ArmRegCache::FlushArmReg(ARMReg r) {
if (ar[r].mipsReg == MIPS_REG_INVALID) {
// Nothing to do, reg not mapped.
if (ar[r].isDirty) {
ERROR_LOG(JIT, "Dirty but no mipsreg?");
}
return;
}
if (ar[r].mipsReg != MIPS_REG_INVALID) {
if (ar[r].isDirty && (mr[ar[r].mipsReg].loc == ML_ARMREG || mr[ar[r].mipsReg].loc == ML_ARMREG_IMM))
emit_->STR(r, CTXREG, GetMipsRegOffset(ar[r].mipsReg));
// IMMs won't be in an ARM reg.
mr[ar[r].mipsReg].loc = ML_MEM;
mr[ar[r].mipsReg].reg = INVALID_REG;
mr[ar[r].mipsReg].imm = 0;
} else {
ERROR_LOG(JIT, "Dirty but no mipsreg?");
auto &mreg = mr[ar[r].mipsReg];
if (mreg.loc == ML_ARMREG_IMM) {
// We know it's immedate value, no need to STR now.
mreg.loc = ML_IMM;
mreg.reg = INVALID_REG;
} else {
if (ar[r].isDirty && mreg.loc == ML_ARMREG)
emit_->STR(r, CTXREG, GetMipsRegOffset(ar[r].mipsReg));
mreg.loc = ML_MEM;
mreg.reg = INVALID_REG;
mreg.imm = 0;
}
}
ar[r].isDirty = false;
ar[r].mipsReg = MIPS_REG_INVALID;