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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes

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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
This commit is contained in:
Coleen Phillimore 2008-04-13 17:43:42 -04:00
parent 680ecf1611
commit 4a831d45f0
273 changed files with 6585 additions and 2993 deletions
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27
hotspot/src/cpu/sparc/vm/assembler_sparc.hpp
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@ -59,6 +59,7 @@ class BiasedLockingCounters;
// This global always holds the current JavaThread pointer:
REGISTER_DECLARATION(Register, G2_thread , G2);
REGISTER_DECLARATION(Register, G6_heapbase , G6);
// The following globals are part of the Java calling convention:
@ -1975,6 +1976,29 @@ class MacroAssembler: public Assembler {
inline void tstbool( Register s ) { tst(s); }
inline void movbool( bool boolconst, Register d) { mov( (int) boolconst, d); }
// klass oop manipulations if compressed
void load_klass(Register src_oop, Register dst);
void store_klass(Register dst_oop, Register s1);
// oop manipulations
void load_heap_oop(const Address& s, Register d, int offset = 0);
void load_heap_oop(Register s1, Register s2, Register d);
void load_heap_oop(Register s1, int simm13a, Register d);
void store_heap_oop(Register d, Register s1, Register s2);
void store_heap_oop(Register d, Register s1, int simm13a);
void store_heap_oop(Register d, const Address& a, int offset = 0);
void encode_heap_oop(Register src, Register dst);
void encode_heap_oop(Register r) {
encode_heap_oop(r, r);
}
void decode_heap_oop(Register src, Register dst);
void decode_heap_oop(Register r) {
decode_heap_oop(r, r);
}
void encode_heap_oop_not_null(Register r);
void decode_heap_oop_not_null(Register r);
// Support for managing the JavaThread pointer (i.e.; the reference to
// thread-local information).
void get_thread(); // load G2_thread
@ -2050,6 +2074,9 @@ class MacroAssembler: public Assembler {
void push_CPU_state();
void pop_CPU_state();
// if heap base register is used - reinit it with the correct value
void reinit_heapbase();
// Debugging
void _verify_oop(Register reg, const char * msg, const char * file, int line);
void _verify_oop_addr(Address addr, const char * msg, const char * file, int line);