| /* |
| * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2014, Red Hat Inc. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "c1/c1_CodeStubs.hpp" |
| #include "c1/c1_FrameMap.hpp" |
| #include "c1/c1_LIRAssembler.hpp" |
| #include "c1/c1_MacroAssembler.hpp" |
| #include "c1/c1_Runtime1.hpp" |
| #include "nativeInst_aarch64.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "vmreg_aarch64.inline.hpp" |
| #if INCLUDE_ALL_GCS |
| #include "gc/g1/g1SATBCardTableModRefBS.hpp" |
| #endif |
| |
| |
| #define __ ce->masm()-> |
| |
| void CounterOverflowStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| Metadata *m = _method->as_constant_ptr()->as_metadata(); |
| __ mov_metadata(rscratch1, m); |
| ce->store_parameter(rscratch1, 1); |
| ce->store_parameter(_bci, 0); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::counter_overflow_id))); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| __ b(_continuation); |
| } |
| |
| RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, |
| bool throw_index_out_of_bounds_exception) |
| : _throw_index_out_of_bounds_exception(throw_index_out_of_bounds_exception) |
| , _index(index) |
| { |
| assert(info != NULL, "must have info"); |
| _info = new CodeEmitInfo(info); |
| } |
| |
| void RangeCheckStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| if (_info->deoptimize_on_exception()) { |
| address a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); |
| __ far_call(RuntimeAddress(a)); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| debug_only(__ should_not_reach_here()); |
| return; |
| } |
| |
| if (_index->is_cpu_register()) { |
| __ mov(rscratch1, _index->as_register()); |
| } else { |
| __ mov(rscratch1, _index->as_jint()); |
| } |
| Runtime1::StubID stub_id; |
| if (_throw_index_out_of_bounds_exception) { |
| stub_id = Runtime1::throw_index_exception_id; |
| } else { |
| stub_id = Runtime1::throw_range_check_failed_id; |
| } |
| __ far_call(RuntimeAddress(Runtime1::entry_for(stub_id)), NULL, rscratch2); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| debug_only(__ should_not_reach_here()); |
| } |
| |
| PredicateFailedStub::PredicateFailedStub(CodeEmitInfo* info) { |
| _info = new CodeEmitInfo(info); |
| } |
| |
| void PredicateFailedStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| address a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); |
| __ far_call(RuntimeAddress(a)); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| debug_only(__ should_not_reach_here()); |
| } |
| |
| void DivByZeroStub::emit_code(LIR_Assembler* ce) { |
| if (_offset != -1) { |
| ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); |
| } |
| __ bind(_entry); |
| __ far_call(Address(Runtime1::entry_for(Runtime1::throw_div0_exception_id), relocInfo::runtime_call_type)); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| #ifdef ASSERT |
| __ should_not_reach_here(); |
| #endif |
| } |
| |
| |
| |
| // Implementation of NewInstanceStub |
| |
| NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, Runtime1::StubID stub_id) { |
| _result = result; |
| _klass = klass; |
| _klass_reg = klass_reg; |
| _info = new CodeEmitInfo(info); |
| assert(stub_id == Runtime1::new_instance_id || |
| stub_id == Runtime1::fast_new_instance_id || |
| stub_id == Runtime1::fast_new_instance_init_check_id, |
| "need new_instance id"); |
| _stub_id = stub_id; |
| } |
| |
| |
| |
| void NewInstanceStub::emit_code(LIR_Assembler* ce) { |
| assert(__ rsp_offset() == 0, "frame size should be fixed"); |
| __ bind(_entry); |
| __ mov(r3, _klass_reg->as_register()); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(_stub_id))); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| assert(_result->as_register() == r0, "result must in r0,"); |
| __ b(_continuation); |
| } |
| |
| |
| // Implementation of NewTypeArrayStub |
| |
| // Implementation of NewTypeArrayStub |
| |
| NewTypeArrayStub::NewTypeArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { |
| _klass_reg = klass_reg; |
| _length = length; |
| _result = result; |
| _info = new CodeEmitInfo(info); |
| } |
| |
| |
| void NewTypeArrayStub::emit_code(LIR_Assembler* ce) { |
| assert(__ rsp_offset() == 0, "frame size should be fixed"); |
| __ bind(_entry); |
| assert(_length->as_register() == r19, "length must in r19,"); |
| assert(_klass_reg->as_register() == r3, "klass_reg must in r3"); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::new_type_array_id))); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| assert(_result->as_register() == r0, "result must in r0"); |
| __ b(_continuation); |
| } |
| |
| |
| // Implementation of NewObjectArrayStub |
| |
| NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { |
| _klass_reg = klass_reg; |
| _result = result; |
| _length = length; |
| _info = new CodeEmitInfo(info); |
| } |
| |
| |
| void NewObjectArrayStub::emit_code(LIR_Assembler* ce) { |
| assert(__ rsp_offset() == 0, "frame size should be fixed"); |
| __ bind(_entry); |
| assert(_length->as_register() == r19, "length must in r19,"); |
| assert(_klass_reg->as_register() == r3, "klass_reg must in r3"); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::new_object_array_id))); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| assert(_result->as_register() == r0, "result must in r0"); |
| __ b(_continuation); |
| } |
| // Implementation of MonitorAccessStubs |
| |
| MonitorEnterStub::MonitorEnterStub(LIR_Opr obj_reg, LIR_Opr lock_reg, CodeEmitInfo* info) |
| : MonitorAccessStub(obj_reg, lock_reg) |
| { |
| _info = new CodeEmitInfo(info); |
| } |
| |
| |
| void MonitorEnterStub::emit_code(LIR_Assembler* ce) { |
| assert(__ rsp_offset() == 0, "frame size should be fixed"); |
| __ bind(_entry); |
| ce->store_parameter(_obj_reg->as_register(), 1); |
| ce->store_parameter(_lock_reg->as_register(), 0); |
| Runtime1::StubID enter_id; |
| if (ce->compilation()->has_fpu_code()) { |
| enter_id = Runtime1::monitorenter_id; |
| } else { |
| enter_id = Runtime1::monitorenter_nofpu_id; |
| } |
| __ far_call(RuntimeAddress(Runtime1::entry_for(enter_id))); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| __ b(_continuation); |
| } |
| |
| |
| void MonitorExitStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| if (_compute_lock) { |
| // lock_reg was destroyed by fast unlocking attempt => recompute it |
| ce->monitor_address(_monitor_ix, _lock_reg); |
| } |
| ce->store_parameter(_lock_reg->as_register(), 0); |
| // note: non-blocking leaf routine => no call info needed |
| Runtime1::StubID exit_id; |
| if (ce->compilation()->has_fpu_code()) { |
| exit_id = Runtime1::monitorexit_id; |
| } else { |
| exit_id = Runtime1::monitorexit_nofpu_id; |
| } |
| __ adr(lr, _continuation); |
| __ far_jump(RuntimeAddress(Runtime1::entry_for(exit_id))); |
| } |
| |
| |
| // Implementation of patching: |
| // - Copy the code at given offset to an inlined buffer (first the bytes, then the number of bytes) |
| // - Replace original code with a call to the stub |
| // At Runtime: |
| // - call to stub, jump to runtime |
| // - in runtime: preserve all registers (rspecially objects, i.e., source and destination object) |
| // - in runtime: after initializing class, restore original code, reexecute instruction |
| |
| int PatchingStub::_patch_info_offset = -NativeGeneralJump::instruction_size; |
| |
| void PatchingStub::align_patch_site(MacroAssembler* masm) { |
| } |
| |
| void PatchingStub::emit_code(LIR_Assembler* ce) { |
| assert(false, "AArch64 should not use C1 runtime patching"); |
| } |
| |
| |
| void DeoptimizeStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| ce->store_parameter(_trap_request, 0); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::deoptimize_id))); |
| ce->add_call_info_here(_info); |
| DEBUG_ONLY(__ should_not_reach_here()); |
| } |
| |
| |
| void ImplicitNullCheckStub::emit_code(LIR_Assembler* ce) { |
| address a; |
| if (_info->deoptimize_on_exception()) { |
| // Deoptimize, do not throw the exception, because it is probably wrong to do it here. |
| a = Runtime1::entry_for(Runtime1::predicate_failed_trap_id); |
| } else { |
| a = Runtime1::entry_for(Runtime1::throw_null_pointer_exception_id); |
| } |
| |
| ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); |
| __ bind(_entry); |
| __ far_call(RuntimeAddress(a)); |
| ce->add_call_info_here(_info); |
| ce->verify_oop_map(_info); |
| debug_only(__ should_not_reach_here()); |
| } |
| |
| |
| void SimpleExceptionStub::emit_code(LIR_Assembler* ce) { |
| assert(__ rsp_offset() == 0, "frame size should be fixed"); |
| |
| __ bind(_entry); |
| // pass the object in a scratch register because all other registers |
| // must be preserved |
| if (_obj->is_cpu_register()) { |
| __ mov(rscratch1, _obj->as_register()); |
| } |
| __ far_call(RuntimeAddress(Runtime1::entry_for(_stub)), NULL, rscratch2); |
| ce->add_call_info_here(_info); |
| debug_only(__ should_not_reach_here()); |
| } |
| |
| |
| void ArrayCopyStub::emit_code(LIR_Assembler* ce) { |
| //---------------slow case: call to native----------------- |
| __ bind(_entry); |
| // Figure out where the args should go |
| // This should really convert the IntrinsicID to the Method* and signature |
| // but I don't know how to do that. |
| // |
| VMRegPair args[5]; |
| BasicType signature[5] = { T_OBJECT, T_INT, T_OBJECT, T_INT, T_INT}; |
| SharedRuntime::java_calling_convention(signature, args, 5, true); |
| |
| // push parameters |
| // (src, src_pos, dest, destPos, length) |
| Register r[5]; |
| r[0] = src()->as_register(); |
| r[1] = src_pos()->as_register(); |
| r[2] = dst()->as_register(); |
| r[3] = dst_pos()->as_register(); |
| r[4] = length()->as_register(); |
| |
| // next registers will get stored on the stack |
| for (int i = 0; i < 5 ; i++ ) { |
| VMReg r_1 = args[i].first(); |
| if (r_1->is_stack()) { |
| int st_off = r_1->reg2stack() * wordSize; |
| __ str (r[i], Address(sp, st_off)); |
| } else { |
| assert(r[i] == args[i].first()->as_Register(), "Wrong register for arg "); |
| } |
| } |
| |
| ce->align_call(lir_static_call); |
| |
| ce->emit_static_call_stub(); |
| if (ce->compilation()->bailed_out()) { |
| return; // CodeCache is full |
| } |
| Address resolve(SharedRuntime::get_resolve_static_call_stub(), |
| relocInfo::static_call_type); |
| address call = __ trampoline_call(resolve); |
| if (call == NULL) { |
| ce->bailout("trampoline stub overflow"); |
| return; |
| } |
| ce->add_call_info_here(info()); |
| |
| #ifndef PRODUCT |
| __ lea(rscratch2, ExternalAddress((address)&Runtime1::_arraycopy_slowcase_cnt)); |
| __ incrementw(Address(rscratch2)); |
| #endif |
| |
| __ b(_continuation); |
| } |
| |
| |
| ///////////////////////////////////////////////////////////////////////////// |
| #if INCLUDE_ALL_GCS |
| |
| void G1PreBarrierStub::emit_code(LIR_Assembler* ce) { |
| // At this point we know that marking is in progress. |
| // If do_load() is true then we have to emit the |
| // load of the previous value; otherwise it has already |
| // been loaded into _pre_val. |
| |
| __ bind(_entry); |
| assert(pre_val()->is_register(), "Precondition."); |
| |
| Register pre_val_reg = pre_val()->as_register(); |
| |
| if (do_load()) { |
| ce->mem2reg(addr(), pre_val(), T_OBJECT, patch_code(), info(), false /*wide*/, false /*unaligned*/); |
| } |
| __ cbz(pre_val_reg, _continuation); |
| ce->store_parameter(pre_val()->as_register(), 0); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::g1_pre_barrier_slow_id))); |
| __ b(_continuation); |
| } |
| |
| void G1PostBarrierStub::emit_code(LIR_Assembler* ce) { |
| __ bind(_entry); |
| assert(addr()->is_register(), "Precondition."); |
| assert(new_val()->is_register(), "Precondition."); |
| Register new_val_reg = new_val()->as_register(); |
| __ cbz(new_val_reg, _continuation); |
| ce->store_parameter(addr()->as_pointer_register(), 0); |
| __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::g1_post_barrier_slow_id))); |
| __ b(_continuation); |
| } |
| |
| #endif // INCLUDE_ALL_GCS |
| ///////////////////////////////////////////////////////////////////////////// |
| |
| #undef __ |