< prev index next >
src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
Print this page
rev 58687 : Shenandoah: New incremental-update mode
*** 47,67 ****
void ShenandoahBarrierSetAssembler::arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
Register src, Register dst, Register count, RegSet saved_regs) {
if (is_oop) {
bool dest_uninitialized = (decorators & IS_DEST_UNINITIALIZED) != 0;
! if ((ShenandoahSATBBarrier && !dest_uninitialized) || ShenandoahLoadRefBarrier) {
Label done;
// Avoid calling runtime if count == 0
__ cbz(count, done);
// Is GC active?
Address gc_state(rthread, in_bytes(ShenandoahThreadLocalData::gc_state_offset()));
__ ldrb(rscratch1, gc_state);
! if (dest_uninitialized) {
__ tbz(rscratch1, ShenandoahHeap::HAS_FORWARDED_BITPOS, done);
} else {
__ mov(rscratch2, ShenandoahHeap::HAS_FORWARDED | ShenandoahHeap::MARKING);
__ tst(rscratch1, rscratch2);
__ br(Assembler::EQ, done);
--- 47,67 ----
void ShenandoahBarrierSetAssembler::arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
Register src, Register dst, Register count, RegSet saved_regs) {
if (is_oop) {
bool dest_uninitialized = (decorators & IS_DEST_UNINITIALIZED) != 0;
! if ((ShenandoahSATBBarrier && !dest_uninitialized) || ShenandoahStoreValEnqueueBarrier || ShenandoahLoadRefBarrier) {
Label done;
// Avoid calling runtime if count == 0
__ cbz(count, done);
// Is GC active?
Address gc_state(rthread, in_bytes(ShenandoahThreadLocalData::gc_state_offset()));
__ ldrb(rscratch1, gc_state);
! if (ShenandoahSATBBarrier && dest_uninitialized) {
__ tbz(rscratch1, ShenandoahHeap::HAS_FORWARDED_BITPOS, done);
} else {
__ mov(rscratch2, ShenandoahHeap::HAS_FORWARDED | ShenandoahHeap::MARKING);
__ tst(rscratch1, rscratch2);
__ br(Assembler::EQ, done);
< prev index next >