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comparison src/share/vm/oops/instanceOop.hpp @ 6848:8e47bac5643a

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7054512: Compress class pointers after perm gen removal Summary: support of compress class pointers in the compilers. Reviewed-by: kvn, twisti
author roland
date Tue, 09 Oct 2012 10:11:38 +0200
parents da91efe96a93
children 7944aba7ba41
comparison
equal deleted inserted replaced
6847:65d07d9ee446 6848:8e47bac5643a
35 // aligned header size. 35 // aligned header size.
36 static int header_size() { return sizeof(instanceOopDesc)/HeapWordSize; } 36 static int header_size() { return sizeof(instanceOopDesc)/HeapWordSize; }
37 37
38 // If compressed, the offset of the fields of the instance may not be aligned. 38 // If compressed, the offset of the fields of the instance may not be aligned.
39 static int base_offset_in_bytes() { 39 static int base_offset_in_bytes() {
40 return UseCompressedKlassPointers ? 40 // offset computation code breaks if UseCompressedKlassPointers
41 // only is true
42 return (UseCompressedOops && UseCompressedKlassPointers) ?
41 klass_gap_offset_in_bytes() : 43 klass_gap_offset_in_bytes() :
42 sizeof(instanceOopDesc); 44 sizeof(instanceOopDesc);
43 } 45 }
44 46
45 static bool contains_field_offset(int offset, int nonstatic_field_size) { 47 static bool contains_field_offset(int offset, int nonstatic_field_size) {