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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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24
hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp
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@ -789,7 +789,7 @@ AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm
{
__ verify_oop(holder);
__ movq(temp, Address(receiver, oopDesc::klass_offset_in_bytes()));
__ load_klass(temp, receiver);
__ verify_oop(temp);
__ cmpq(temp, Address(holder, compiledICHolderOopDesc::holder_klass_offset()));
@ -1297,21 +1297,26 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
const Register ic_reg = rax;
const Register receiver = j_rarg0;
const Register tmp = rdx;
Label ok;
Label exception_pending;
__ verify_oop(receiver);
__ cmpq(ic_reg, Address(receiver, oopDesc::klass_offset_in_bytes()));
__ pushq(tmp); // spill (any other registers free here???)
__ load_klass(tmp, receiver);
__ cmpq(ic_reg, tmp);
__ jcc(Assembler::equal, ok);
__ popq(tmp);
__ jump(RuntimeAddress(SharedRuntime::get_ic_miss_stub()));
__ bind(ok);
__ popq(tmp);
// Verified entry point must be aligned
__ align(8);
__ bind(ok);
int vep_offset = ((intptr_t)__ pc()) - start;
// The instruction at the verified entry point must be 5 bytes or longer
@ -1663,6 +1668,7 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
__ andq(rsp, -16); // align stack as required by ABI
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans)));
__ movq(rsp, r12); // restore sp
__ reinit_heapbase();
// Restore any method result value
restore_native_result(masm, ret_type, stack_slots);
__ bind(Continue);
@ -1725,7 +1731,6 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
__ bind(done);
}
{
SkipIfEqual skip(masm, &DTraceMethodProbes, false);
save_native_result(masm, ret_type, stack_slots);
@ -1829,6 +1834,7 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::complete_monitor_unlocking_C)));
__ movq(rsp, r12); // restore sp
__ reinit_heapbase();
#ifdef ASSERT
{
Label L;
@ -1859,6 +1865,7 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
__ andq(rsp, -16); // align stack as required by ABI
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages)));
__ movq(rsp, r12); // restore sp
__ reinit_heapbase();
restore_native_result(masm, ret_type, stack_slots);
// and continue
__ jmp(reguard_done);
@ -1941,9 +1948,8 @@ void SharedRuntime::generate_deopt_blob() {
map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words);
// Normal deoptimization. Save exec mode for unpack_frames.
__ movl(r12, Deoptimization::Unpack_deopt); // callee-saved
__ movl(r14, Deoptimization::Unpack_deopt); // callee-saved
__ jmp(cont);
int exception_offset = __ pc() - start;
// Prolog for exception case
@ -1955,7 +1961,7 @@ void SharedRuntime::generate_deopt_blob() {
map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words);
// Deopt during an exception. Save exec mode for unpack_frames.
__ movl(r12, Deoptimization::Unpack_exception); // callee-saved
__ movl(r14, Deoptimization::Unpack_exception); // callee-saved
__ bind(cont);
@ -2088,7 +2094,7 @@ void SharedRuntime::generate_deopt_blob() {
__ set_last_Java_frame(noreg, rbp, NULL);
__ movq(c_rarg0, r15_thread);
__ movl(c_rarg1, r12); // second arg: exec_mode
__ movl(c_rarg1, r14); // second arg: exec_mode
__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames)));
// Set an oopmap for the call site