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7054512: Compress class pointers after perm gen removal

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Support of compress class pointers in the compilers.

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2012-10-09 10:11:38 +02:00
parent 7162ad011c
commit 61eb5a0549
93 changed files with 1600 additions and 497 deletions
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95
hotspot/src/share/vm/utilities/globalDefinitions.hpp
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@ -347,6 +347,14 @@ extern int MinObjAlignmentInBytesMask;
extern int LogMinObjAlignment;
extern int LogMinObjAlignmentInBytes;
const int LogKlassAlignmentInBytes = 3;
const int LogKlassAlignment = LogKlassAlignmentInBytes - LogHeapWordSize;
const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes;
const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize;
// Klass encoding metaspace max size
const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes;
// Machine dependent stuff
#ifdef TARGET_ARCH_x86
@ -481,22 +489,23 @@ void basic_types_init(); // cannot define here; uses assert
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
enum BasicType {
T_BOOLEAN = 4,
T_CHAR = 5,
T_FLOAT = 6,
T_DOUBLE = 7,
T_BYTE = 8,
T_SHORT = 9,
T_INT = 10,
T_LONG = 11,
T_OBJECT = 12,
T_ARRAY = 13,
T_VOID = 14,
T_ADDRESS = 15,
T_NARROWOOP= 16,
T_METADATA = 17,
T_CONFLICT = 18, // for stack value type with conflicting contents
T_ILLEGAL = 99
T_BOOLEAN = 4,
T_CHAR = 5,
T_FLOAT = 6,
T_DOUBLE = 7,
T_BYTE = 8,
T_SHORT = 9,
T_INT = 10,
T_LONG = 11,
T_OBJECT = 12,
T_ARRAY = 13,
T_VOID = 14,
T_ADDRESS = 15,
T_NARROWOOP = 16,
T_METADATA = 17,
T_NARROWKLASS = 18,
T_CONFLICT = 19, // for stack value type with conflicting contents
T_ILLEGAL = 99
};
inline bool is_java_primitive(BasicType t) {
@ -544,18 +553,19 @@ extern size_t lcm(size_t a, size_t b);
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
enum BasicTypeSize {
T_BOOLEAN_size = 1,
T_CHAR_size = 1,
T_FLOAT_size = 1,
T_DOUBLE_size = 2,
T_BYTE_size = 1,
T_SHORT_size = 1,
T_INT_size = 1,
T_LONG_size = 2,
T_OBJECT_size = 1,
T_ARRAY_size = 1,
T_NARROWOOP_size = 1,
T_VOID_size = 0
T_BOOLEAN_size = 1,
T_CHAR_size = 1,
T_FLOAT_size = 1,
T_DOUBLE_size = 2,
T_BYTE_size = 1,
T_SHORT_size = 1,
T_INT_size = 1,
T_LONG_size = 2,
T_OBJECT_size = 1,
T_ARRAY_size = 1,
T_NARROWOOP_size = 1,
T_NARROWKLASS_size = 1,
T_VOID_size = 0
};
@ -567,23 +577,24 @@ extern BasicType type2wfield[T_CONFLICT+1];
// size in bytes
enum ArrayElementSize {
T_BOOLEAN_aelem_bytes = 1,
T_CHAR_aelem_bytes = 2,
T_FLOAT_aelem_bytes = 4,
T_DOUBLE_aelem_bytes = 8,
T_BYTE_aelem_bytes = 1,
T_SHORT_aelem_bytes = 2,
T_INT_aelem_bytes = 4,
T_LONG_aelem_bytes = 8,
T_BOOLEAN_aelem_bytes = 1,
T_CHAR_aelem_bytes = 2,
T_FLOAT_aelem_bytes = 4,
T_DOUBLE_aelem_bytes = 8,
T_BYTE_aelem_bytes = 1,
T_SHORT_aelem_bytes = 2,
T_INT_aelem_bytes = 4,
T_LONG_aelem_bytes = 8,
#ifdef _LP64
T_OBJECT_aelem_bytes = 8,
T_ARRAY_aelem_bytes = 8,
T_OBJECT_aelem_bytes = 8,
T_ARRAY_aelem_bytes = 8,
#else
T_OBJECT_aelem_bytes = 4,
T_ARRAY_aelem_bytes = 4,
T_OBJECT_aelem_bytes = 4,
T_ARRAY_aelem_bytes = 4,
#endif
T_NARROWOOP_aelem_bytes = 4,
T_VOID_aelem_bytes = 0
T_NARROWOOP_aelem_bytes = 4,
T_NARROWKLASS_aelem_bytes = 4,
T_VOID_aelem_bytes = 0
};
extern int _type2aelembytes[T_CONFLICT+1]; // maps a BasicType to nof bytes used by its array element