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6700789: G1: Enable use of compressed oops with G1 heaps

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Modifications to G1 so as to allow the use of compressed oops.

Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
This commit is contained in:
Y. Srinivas Ramakrishna 2009-07-14 15:40:39 -07:00
parent 50d7db1805
commit 075c1335cb
58 changed files with 1233 additions and 1175 deletions
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7
hotspot/src/cpu/sparc/vm/assembler_sparc.cpp
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@ -4208,6 +4208,7 @@ void MacroAssembler::g1_write_barrier_pre(Register obj, Register index, int offs
PtrQueue::byte_offset_of_active()),
tmp);
}
// Check on whether to annul.
br_on_reg_cond(rc_z, /*annul*/false, Assembler::pt, tmp, filtered);
delayed() -> nop();
@ -4215,13 +4216,13 @@ void MacroAssembler::g1_write_barrier_pre(Register obj, Register index, int offs
// satb_log_barrier_work1(tmp, offset);
if (index == noreg) {
if (Assembler::is_simm13(offset)) {
ld_ptr(obj, offset, tmp);
load_heap_oop(obj, offset, tmp);
} else {
set(offset, tmp);
ld_ptr(obj, tmp, tmp);
load_heap_oop(obj, tmp, tmp);
}
} else {
ld_ptr(obj, index, tmp);
load_heap_oop(obj, index, tmp);
}
// satb_log_barrier_work2(obj, tmp, offset);