@Override
public void emitCode(TargetMethodAssembler tasm, SPARCMacroAssembler masm) {
final int pos = masm.codeBuffer.position();
Register scratch = ((RegisterValue) temp).getRegister();
new Setx(config.safepointPollingAddress, scratch).emit(masm);
tasm.recordInfopoint(pos, state, InfopointReason.SAFEPOINT);
new Ldx(new SPARCAddress(scratch, 0), g0).emit(masm);
}
public static void emit(
TargetMethodAssembler tasm, AMD64MacroAssembler masm, AMD64Compare opcode, Value x, Value y) {
if (isRegister(y)) {
switch (opcode) {
case ICMP:
masm.cmpl(asIntReg(x), asIntReg(y));
break;
case LCMP:
masm.cmpq(asLongReg(x), asLongReg(y));
break;
case ACMP:
masm.cmpptr(asObjectReg(x), asObjectReg(y));
break;
case FCMP:
masm.ucomiss(asFloatReg(x), asFloatReg(y));
break;
case DCMP:
masm.ucomisd(asDoubleReg(x), asDoubleReg(y));
break;
default:
throw GraalInternalError.shouldNotReachHere();
}
} else if (isConstant(y)) {
switch (opcode) {
case ICMP:
masm.cmpl(asIntReg(x), tasm.asIntConst(y));
break;
case LCMP:
masm.cmpq(asLongReg(x), tasm.asIntConst(y));
break;
case ACMP:
if (((Constant) y).isNull()) {
masm.cmpq(asObjectReg(x), 0);
break;
} else {
throw GraalInternalError.shouldNotReachHere(
"Only null object constants are allowed in comparisons");
}
case FCMP:
masm.ucomiss(asFloatReg(x), (AMD64Address) tasm.asFloatConstRef(y));
break;
case DCMP:
masm.ucomisd(asDoubleReg(x), (AMD64Address) tasm.asDoubleConstRef(y));
break;
default:
throw GraalInternalError.shouldNotReachHere();
}
} else {
switch (opcode) {
case ICMP:
masm.cmpl(asIntReg(x), (AMD64Address) tasm.asIntAddr(y));
break;
case LCMP:
masm.cmpq(asLongReg(x), (AMD64Address) tasm.asLongAddr(y));
break;
case ACMP:
masm.cmpptr(asObjectReg(x), (AMD64Address) tasm.asObjectAddr(y));
break;
case FCMP:
masm.ucomiss(asFloatReg(x), (AMD64Address) tasm.asFloatAddr(y));
break;
case DCMP:
masm.ucomisd(asDoubleReg(x), (AMD64Address) tasm.asDoubleAddr(y));
break;
default:
throw GraalInternalError.shouldNotReachHere();
}
}
}