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src/cpu/x86/vm/stubGenerator_x86_64.cpp
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@@ -23,10 +23,13 @@
*/
#include "precompiled.hpp"
#include "asm/macroAssembler.hpp"
#include "asm/macroAssembler.inline.hpp"
+#include "gc/shenandoah/shenandoahBarrierSet.hpp"
+#include "gc/shenandoah/shenandoahHeap.hpp"
+#include "gc/shenandoah/shenandoahHeapRegion.hpp"
#include "interpreter/interpreter.hpp"
#include "nativeInst_x86.hpp"
#include "oops/instanceOop.hpp"
#include "oops/method.hpp"
#include "oops/objArrayKlass.hpp"
@@ -802,10 +805,96 @@
__ ret(0);
return start;
}
+ address generate_shenandoah_wb() {
+ StubCodeMark mark(this, "StubRoutines", "shenandoah_wb");
+ address start = __ pc();
+
+ Label done;
+
+ __ push(rbx);
+ // Check for object beeing in the collection set.
+ // TODO: Can we use only 1 register here?
+ __ movptr(rdi, rax);
+ __ shrptr(rdi, ShenandoahHeapRegion::RegionSizeShift);
+ __ movptr(rbx, (intptr_t) ShenandoahHeap::in_cset_fast_test_addr());
+ __ movbool(rbx, Address(rbx, rdi, Address::times_1));
+ __ testbool(rbx);
+ __ jcc(Assembler::zero, done);
+
+ __ push(rcx);
+ __ push(rdx);
+ __ push(rdi);
+ __ push(rsi);
+ __ push(r8);
+ __ push(r9);
+ __ push(r10);
+ __ push(r11);
+ __ push(r12);
+ __ push(r13);
+ __ push(r14);
+ __ push(r15);
+ __ subptr(rsp, 128);
+ __ movdbl(Address(rsp, 0), xmm0);
+ __ movdbl(Address(rsp, 8), xmm1);
+ __ movdbl(Address(rsp, 16), xmm2);
+ __ movdbl(Address(rsp, 24), xmm3);
+ __ movdbl(Address(rsp, 32), xmm4);
+ __ movdbl(Address(rsp, 40), xmm5);
+ __ movdbl(Address(rsp, 48), xmm6);
+ __ movdbl(Address(rsp, 56), xmm7);
+ __ movdbl(Address(rsp, 64), xmm8);
+ __ movdbl(Address(rsp, 72), xmm9);
+ __ movdbl(Address(rsp, 80), xmm10);
+ __ movdbl(Address(rsp, 88), xmm11);
+ __ movdbl(Address(rsp, 96), xmm12);
+ __ movdbl(Address(rsp, 104), xmm13);
+ __ movdbl(Address(rsp, 112), xmm14);
+ __ movdbl(Address(rsp, 120), xmm15);
+ __ movptr(rdi, rax);
+ __ call_VM_leaf(CAST_FROM_FN_PTR(address, ShenandoahBarrierSet::write_barrier_c2), rdi);
+ __ movdbl(xmm0, Address(rsp, 0));
+ __ movdbl(xmm1, Address(rsp, 8));
+ __ movdbl(xmm2, Address(rsp, 16));
+ __ movdbl(xmm3, Address(rsp, 24));
+ __ movdbl(xmm4, Address(rsp, 32));
+ __ movdbl(xmm5, Address(rsp, 40));
+ __ movdbl(xmm6, Address(rsp, 48));
+ __ movdbl(xmm7, Address(rsp, 56));
+ __ movdbl(xmm8, Address(rsp, 64));
+ __ movdbl(xmm9, Address(rsp, 72));
+ __ movdbl(xmm10, Address(rsp, 80));
+ __ movdbl(xmm11, Address(rsp, 88));
+ __ movdbl(xmm12, Address(rsp, 96));
+ __ movdbl(xmm13, Address(rsp, 104));
+ __ movdbl(xmm14, Address(rsp, 112));
+ __ movdbl(xmm15, Address(rsp, 120));
+ __ addptr(rsp, 128);
+ __ pop(r15);
+ __ pop(r14);
+ __ pop(r13);
+ __ pop(r12);
+ __ pop(r11);
+ __ pop(r10);
+ __ pop(r9);
+ __ pop(r8);
+ __ pop(rsi);
+ __ pop(rdi);
+ __ pop(rdx);
+ __ pop(rcx);
+
+ __ bind(done);
+
+ __ pop(rbx);
+
+ __ ret(0);
+
+ return start;
+ }
+
address generate_f2i_fixup() {
StubCodeMark mark(this, "StubRoutines", "f2i_fixup");
Address inout(rsp, 5 * wordSize); // return address + 4 saves
address start = __ pc();
@@ -1232,10 +1321,11 @@
//
void gen_write_ref_array_pre_barrier(Register addr, Register count, bool dest_uninitialized) {
BarrierSet* bs = Universe::heap()->barrier_set();
switch (bs->kind()) {
case BarrierSet::G1SATBCTLogging:
+ case BarrierSet::ShenandoahBarrierSet:
// With G1, don't generate the call if we statically know that the target in uninitialized
if (!dest_uninitialized) {
__ pusha(); // push registers
if (count == c_rarg0) {
if (addr == c_rarg1) {
@@ -1276,10 +1366,11 @@
void gen_write_ref_array_post_barrier(Register start, Register count, Register scratch) {
assert_different_registers(start, count, scratch);
BarrierSet* bs = Universe::heap()->barrier_set();
switch (bs->kind()) {
case BarrierSet::G1SATBCTLogging:
+ case BarrierSet::ShenandoahBarrierSet:
{
__ pusha(); // push registers (overkill)
if (c_rarg0 == count) { // On win64 c_rarg0 == rcx
assert_different_registers(c_rarg1, start);
__ mov(c_rarg1, count);
@@ -4273,10 +4364,13 @@
CAST_FROM_FN_PTR(address,
SharedRuntime::
throw_NullPointerException_at_call));
// entry points that are platform specific
+ if (UseShenandoahGC) {
+ StubRoutines::x86::_shenandoah_wb = generate_shenandoah_wb();
+ }
StubRoutines::x86::_f2i_fixup = generate_f2i_fixup();
StubRoutines::x86::_f2l_fixup = generate_f2l_fixup();
StubRoutines::x86::_d2i_fixup = generate_d2i_fixup();
StubRoutines::x86::_d2l_fixup = generate_d2l_fixup();
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