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src/cpu/ppc/vm/c1_LIRGenerator_ppc.cpp
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rev 12684 : [mq]: 8176580.patch
@@ -1431,13 +1431,23 @@
bool is_updateBytes = (x->id() == vmIntrinsics::_updateBytesCRC32C);
LIRItem crc(x->argument_at(0), this);
LIRItem buf(x->argument_at(1), this);
LIRItem off(x->argument_at(2), this);
- LIRItem len(x->argument_at(3), this);
+ LIRItem end(x->argument_at(3), this);
buf.load_item();
off.load_nonconstant();
+ end.load_nonconstant();
+
+ // len = end - off
+ LIR_Opr len = end.result();
+ LIR_Opr tmpA = new_register(T_INT);
+ LIR_Opr tmpB = new_register(T_INT);
+ __ move(end.result(), tmpA);
+ __ move(off.result(), tmpB);
+ __ sub(tmpA, tmpB, tmpA);
+ len = tmpA;
LIR_Opr index = off.result();
int offset = is_updateBytes ? arrayOopDesc::base_offset_in_bytes(T_BYTE) : 0;
if (off.result()->is_constant()) {
index = LIR_OprFact::illegalOpr;
@@ -1465,13 +1475,13 @@
LIR_Opr arg1 = cc->at(0),
arg2 = cc->at(1),
arg3 = cc->at(2);
- crc.load_item_force(arg1); // We skip int->long conversion here, because CRC32 stub doesn't care about high bits.
+ crc.load_item_force(arg1); // We skip int->long conversion here, because CRC32C stub doesn't care about high bits.
__ leal(LIR_OprFact::address(a), arg2);
- len.load_item_force(arg3); // We skip int->long conversion here, , because CRC32 stub expects int.
+ __ move(len, cc->at(2)); // We skip int->long conversion here, because CRC32C stub expects int.
__ call_runtime_leaf(StubRoutines::updateBytesCRC32C(), LIR_OprFact::illegalOpr, result_reg, cc->args());
__ move(result_reg, result);
break;
}
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