--- a/hotspot/src/share/vm/opto/graphKit.cpp Thu Mar 05 17:27:16 2015 +0100
+++ b/hotspot/src/share/vm/opto/graphKit.cpp Fri Mar 06 08:53:22 2015 +0100
@@ -1660,22 +1660,7 @@
// must be correct type for alignment purposes
Node* base = basic_plus_adr(ary, header);
-#ifdef _LP64
- // The scaled index operand to AddP must be a clean 64-bit value.
- // Java allows a 32-bit int to be incremented to a negative
- // value, which appears in a 64-bit register as a large
- // positive number. Using that large positive number as an
- // operand in pointer arithmetic has bad consequences.
- // On the other hand, 32-bit overflow is rare, and the possibility
- // can often be excluded, if we annotate the ConvI2L node with
- // a type assertion that its value is known to be a small positive
- // number. (The prior range check has ensured this.)
- // This assertion is used by ConvI2LNode::Ideal.
- int index_max = max_jint - 1; // array size is max_jint, index is one less
- if (sizetype != NULL) index_max = sizetype->_hi - 1;
- const TypeLong* lidxtype = TypeLong::make(CONST64(0), index_max, Type::WidenMax);
- idx = _gvn.transform( new ConvI2LNode(idx, lidxtype) );
-#endif
+ idx = Compile::conv_I2X_index(&_gvn, idx, sizetype);
Node* scale = _gvn.transform( new LShiftXNode(idx, intcon(shift)) );
return basic_plus_adr(ary, base, scale);
}