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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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20
hotspot/src/cpu/sparc/vm/sharedRuntime_sparc.cpp
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@ -160,18 +160,24 @@ OopMap* RegisterSaver::save_live_registers(MacroAssembler* masm, int additional_
map->set_callee_saved(VMRegImpl::stack2reg((o5_offset + 4)>>2), O5->as_VMReg());
#endif /* _LP64 */
#ifdef _LP64
int debug_offset = 0;
#else
int debug_offset = 4;
#endif
// Save the G's
__ stx(G1, SP, g1_offset+STACK_BIAS);
map->set_callee_saved(VMRegImpl::stack2reg((g1_offset + 4)>>2), G1->as_VMReg());
map->set_callee_saved(VMRegImpl::stack2reg((g1_offset + debug_offset)>>2), G1->as_VMReg());
__ stx(G3, SP, g3_offset+STACK_BIAS);
map->set_callee_saved(VMRegImpl::stack2reg((g3_offset + 4)>>2), G3->as_VMReg());
map->set_callee_saved(VMRegImpl::stack2reg((g3_offset + debug_offset)>>2), G3->as_VMReg());
__ stx(G4, SP, g4_offset+STACK_BIAS);
map->set_callee_saved(VMRegImpl::stack2reg((g4_offset + 4)>>2), G4->as_VMReg());
map->set_callee_saved(VMRegImpl::stack2reg((g4_offset + debug_offset)>>2), G4->as_VMReg());
__ stx(G5, SP, g5_offset+STACK_BIAS);
map->set_callee_saved(VMRegImpl::stack2reg((g5_offset + 4)>>2), G5->as_VMReg());
map->set_callee_saved(VMRegImpl::stack2reg((g5_offset + debug_offset)>>2), G5->as_VMReg());
// This is really a waste but we'll keep things as they were for now
if (true) {
@ -182,11 +188,11 @@ OopMap* RegisterSaver::save_live_registers(MacroAssembler* masm, int additional_
map->set_callee_saved(VMRegImpl::stack2reg((o3_offset)>>2), O3->as_VMReg()->next());
map->set_callee_saved(VMRegImpl::stack2reg((o4_offset)>>2), O4->as_VMReg()->next());
map->set_callee_saved(VMRegImpl::stack2reg((o5_offset)>>2), O5->as_VMReg()->next());
#endif /* _LP64 */
map->set_callee_saved(VMRegImpl::stack2reg((g1_offset)>>2), G1->as_VMReg()->next());
map->set_callee_saved(VMRegImpl::stack2reg((g3_offset)>>2), G3->as_VMReg()->next());
map->set_callee_saved(VMRegImpl::stack2reg((g4_offset)>>2), G4->as_VMReg()->next());
map->set_callee_saved(VMRegImpl::stack2reg((g5_offset)>>2), G5->as_VMReg()->next());
#endif /* _LP64 */
}
@ -1217,7 +1223,7 @@ AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm
__ verify_oop(O0);
__ verify_oop(G5_method);
__ ld_ptr(O0, oopDesc::klass_offset_in_bytes(), G3_scratch);
__ load_klass(O0, G3_scratch);
__ verify_oop(G3_scratch);
#if !defined(_LP64) && defined(COMPILER2)
@ -1820,7 +1826,7 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler* masm,
const Register temp_reg = G3_scratch;
Address ic_miss(temp_reg, SharedRuntime::get_ic_miss_stub());
__ verify_oop(O0);
__ ld_ptr(O0, oopDesc::klass_offset_in_bytes(), temp_reg);
__ load_klass(O0, temp_reg);
__ cmp(temp_reg, G5_inline_cache_reg);
__ brx(Assembler::equal, true, Assembler::pt, L);
__ delayed()->nop();