< prev index next > src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp
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__ set_info("fast new_instance init check", dont_gc_arguments);
}
__ enter();
OopMap* map = save_live_registers(sasm);
! int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass);
oop_maps = new OopMapSet();
oop_maps->add_gc_map(call_offset, map);
restore_live_registers_except_r0(sasm);
__ verify_oop(obj);
__ leave();
__ set_info("fast new_instance init check", dont_gc_arguments);
}
__ enter();
OopMap* map = save_live_registers(sasm);
! int call_offset;
+ call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass);
oop_maps = new OopMapSet();
oop_maps->add_gc_map(call_offset, map);
restore_live_registers_except_r0(sasm);
__ verify_oop(obj);
__ leave();
}
break;
case C1StubId::new_type_array_id:
case C1StubId::new_object_array_id:
{
Register length = r19; // Incoming
Register klass = r3; // Incoming
Register obj = r0; // Result
if (id == C1StubId::new_type_array_id) {
__ set_info("new_type_array", dont_gc_arguments);
! } else {
__ set_info("new_object_array", dont_gc_arguments);
}
#ifdef ASSERT
// assert object type is really an array of the proper kind
{
Label ok;
Register t0 = obj;
__ ldrw(t0, Address(klass, Klass::layout_helper_offset()));
__ asrw(t0, t0, Klass::_lh_array_tag_shift);
! int tag = ((id == C1StubId::new_type_array_id)
! ? Klass::_lh_array_tag_type_value
! : Klass::_lh_array_tag_obj_value);
! __ mov(rscratch1, tag);
! __ cmpw(t0, rscratch1);
! __ br(Assembler::EQ, ok);
! __ stop("assert(is an array klass)");
__ should_not_reach_here();
__ bind(ok);
}
#endif // ASSERT
__ enter();
OopMap* map = save_live_registers(sasm);
int call_offset;
if (id == C1StubId::new_type_array_id) {
call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length);
! } else {
call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length);
}
oop_maps = new OopMapSet();
oop_maps->add_gc_map(call_offset, map);
restore_live_registers_except_r0(sasm);
}
break;
case C1StubId::new_type_array_id:
case C1StubId::new_object_array_id:
+ case C1StubId::new_null_free_array_id:
{
Register length = r19; // Incoming
Register klass = r3; // Incoming
Register obj = r0; // Result
if (id == C1StubId::new_type_array_id) {
__ set_info("new_type_array", dont_gc_arguments);
! } else if (id == C1StubId::new_object_array_id) {
__ set_info("new_object_array", dont_gc_arguments);
+ } else {
+ __ set_info("new_null_free_array", dont_gc_arguments);
}
#ifdef ASSERT
// assert object type is really an array of the proper kind
{
Label ok;
Register t0 = obj;
__ ldrw(t0, Address(klass, Klass::layout_helper_offset()));
__ asrw(t0, t0, Klass::_lh_array_tag_shift);
! switch (id) {
! case C1StubId::new_type_array_id:
! __ cmpw(t0, Klass::_lh_array_tag_type_value);
! __ br(Assembler::EQ, ok);
! __ stop("assert(is a type array klass)");
! break;
! case C1StubId::new_object_array_id:
+ __ cmpw(t0, Klass::_lh_array_tag_obj_value); // new "[Ljava/lang/Object;"
+ __ br(Assembler::EQ, ok);
+ __ cmpw(t0, Klass::_lh_array_tag_vt_value); // new "[LVT;"
+ __ br(Assembler::EQ, ok);
+ __ stop("assert(is an object or inline type array klass)");
+ break;
+ case C1StubId::new_null_free_array_id:
+ __ cmpw(t0, Klass::_lh_array_tag_vt_value); // the array can be a flat array.
+ __ br(Assembler::EQ, ok);
+ __ cmpw(t0, Klass::_lh_array_tag_obj_value); // the array cannot be a flat array (due to InlineArrayElementMaxFlatSize, etc)
+ __ br(Assembler::EQ, ok);
+ __ stop("assert(is an object or inline type array klass)");
+ break;
+ default: ShouldNotReachHere();
+ }
__ should_not_reach_here();
__ bind(ok);
}
#endif // ASSERT
__ enter();
OopMap* map = save_live_registers(sasm);
int call_offset;
if (id == C1StubId::new_type_array_id) {
call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length);
! } else if (id == C1StubId::new_object_array_id) {
call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length);
+ } else {
+ assert(id == C1StubId::new_null_free_array_id, "must be");
+ call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_null_free_array), klass, length);
}
oop_maps = new OopMapSet();
oop_maps->add_gc_map(call_offset, map);
restore_live_registers_except_r0(sasm);
// r0,: new multi array
__ verify_oop(r0);
}
break;
+ case C1StubId::buffer_inline_args_id:
+ case C1StubId::buffer_inline_args_no_receiver_id:
+ {
+ const char* name = (id == C1StubId::buffer_inline_args_id) ?
+ "buffer_inline_args" : "buffer_inline_args_no_receiver";
+ StubFrame f(sasm, name, dont_gc_arguments);
+ OopMap* map = save_live_registers(sasm);
+ Register method = r19; // Incoming
+ address entry = (id == C1StubId::buffer_inline_args_id) ?
+ CAST_FROM_FN_PTR(address, buffer_inline_args) :
+ CAST_FROM_FN_PTR(address, buffer_inline_args_no_receiver);
+ // This is called from a C1 method's scalarized entry point
+ // where r0-r7 may be holding live argument values so we can't
+ // return the result in r0 as the other stubs do. LR is used as
+ // a temporay below to avoid the result being clobbered by
+ // restore_live_registers.
+ int call_offset = __ call_RT(lr, noreg, entry, method);
+ oop_maps = new OopMapSet();
+ oop_maps->add_gc_map(call_offset, map);
+ restore_live_registers(sasm);
+ __ mov(r20, lr);
+ __ verify_oop(r20); // r20: an array of buffered value objects
+ }
+ break;
+
+ case C1StubId::load_flat_array_id:
+ {
+ StubFrame f(sasm, "load_flat_array", dont_gc_arguments);
+ OopMap* map = save_live_registers(sasm);
+
+ // Called with store_parameter and not C abi
+
+ f.load_argument(1, r0); // r0,: array
+ f.load_argument(0, r1); // r1,: index
+ int call_offset = __ call_RT(r0, noreg, CAST_FROM_FN_PTR(address, load_flat_array), r0, r1);
+
+ // Ensure the stores that initialize the buffer are visible
+ // before any subsequent store that publishes this reference.
+ __ membar(Assembler::StoreStore);
+
+ oop_maps = new OopMapSet();
+ oop_maps->add_gc_map(call_offset, map);
+ restore_live_registers_except_r0(sasm);
+
+ // r0: loaded element at array[index]
+ __ verify_oop(r0);
+ }
+ break;
+
+ case C1StubId::store_flat_array_id:
+ {
+ StubFrame f(sasm, "store_flat_array", dont_gc_arguments);
+ OopMap* map = save_live_registers(sasm, 4);
+
+ // Called with store_parameter and not C abi
+
+ f.load_argument(2, r0); // r0: array
+ f.load_argument(1, r1); // r1: index
+ f.load_argument(0, r2); // r2: value
+ int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, store_flat_array), r0, r1, r2);
+
+ oop_maps = new OopMapSet();
+ oop_maps->add_gc_map(call_offset, map);
+ restore_live_registers_except_r0(sasm);
+ }
+ break;
+
+ case C1StubId::substitutability_check_id:
+ {
+ StubFrame f(sasm, "substitutability_check", dont_gc_arguments);
+ OopMap* map = save_live_registers(sasm);
+
+ // Called with store_parameter and not C abi
+
+ f.load_argument(1, r1); // r1,: left
+ f.load_argument(0, r2); // r2,: right
+ int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, substitutability_check), r1, r2);
+
+ oop_maps = new OopMapSet();
+ oop_maps->add_gc_map(call_offset, map);
+ restore_live_registers_except_r0(sasm);
+
+ // r0,: are the two operands substitutable
+ }
+ break;
+
case C1StubId::register_finalizer_id:
{
__ set_info("register_finalizer", dont_gc_arguments);
// This is called via call_runtime so the arguments
oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true);
}
break;
case C1StubId::throw_incompatible_class_change_error_id:
! { StubFrame f(sasm, "throw_incompatible_class_cast_exception", dont_gc_arguments, does_not_return);
oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false);
}
break;
case C1StubId::slow_subtype_check_id:
{
// Typical calling sequence:
// __ push(klass_RInfo); // object klass or other subclass
// __ push(sup_k_RInfo); // array element klass or other superclass
oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true);
}
break;
case C1StubId::throw_incompatible_class_change_error_id:
! { StubFrame f(sasm, "throw_incompatible_class_change_error", dont_gc_arguments, does_not_return);
oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false);
}
break;
+ case C1StubId::throw_illegal_monitor_state_exception_id:
+ { StubFrame f(sasm, "throw_illegal_monitor_state_exception", dont_gc_arguments);
+ oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_illegal_monitor_state_exception), false);
+ }
+ break;
+
+ case C1StubId::throw_identity_exception_id:
+ { StubFrame f(sasm, "throw_identity_exception", dont_gc_arguments);
+ oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_identity_exception), true);
+ }
+ break;
+
case C1StubId::slow_subtype_check_id:
{
// Typical calling sequence:
// __ push(klass_RInfo); // object klass or other subclass
// __ push(sup_k_RInfo); // array element klass or other superclass
restore_live_registers(sasm);
}
break;
default:
+ // FIXME: For unhandled trap_id this code fails with assert during vm intialization
+ // rather than insert a call to unimplemented_entry
{ StubFrame f(sasm, "unimplemented entry", dont_gc_arguments, does_not_return);
__ mov(r0, (int)id);
__ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), r0);
}
break;
}
}
+
+
return oop_maps;
}
#undef __
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