--- old/src/hotspot/cpu/sparc/c1_CodeStubs_sparc.cpp	2020-05-20 18:08:27.399816229 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,458 +0,0 @@
-/*
- * Copyright (c) 1999, 2018, Oracle and/or its affiliates. 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 "asm/macroAssembler.inline.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_sparc.hpp"
-#include "runtime/sharedRuntime.hpp"
-#include "utilities/macros.hpp"
-#include "vmreg_sparc.inline.hpp"
-
-#define __ ce->masm()->
-
-RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, LIR_Opr array)
-  : _throw_index_out_of_bounds_exception(false), _index(index), _array(array) {
-  assert(info != NULL, "must have info");
-  _info = new CodeEmitInfo(info);
-}
-
-RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index)
-  : _throw_index_out_of_bounds_exception(true), _index(index), _array(NULL) {
-  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);
-    __ call(a, relocInfo::runtime_call_type);
-    __ delayed()->nop();
-    ce->add_call_info_here(_info);
-    ce->verify_oop_map(_info);
-    debug_only(__ should_not_reach_here());
-    return;
-  }
-
-  if (_index->is_register()) {
-    __ mov(_index->as_register(), G4);
-  } else {
-    __ set(_index->as_jint(), G4);
-  }
-  if (_throw_index_out_of_bounds_exception) {
-    __ call(Runtime1::entry_for(Runtime1::throw_index_exception_id), relocInfo::runtime_call_type);
-  } else {
-    __ mov(_array->as_pointer_register(), G5);
-    __ call(Runtime1::entry_for(Runtime1::throw_range_check_failed_id), relocInfo::runtime_call_type);
-  }
-  __ delayed()->nop();
-  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);
-  __ call(a, relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-  debug_only(__ should_not_reach_here());
-}
-
-void CounterOverflowStub::emit_code(LIR_Assembler* ce) {
-  __ bind(_entry);
-  __ set(_bci, G4);
-  Metadata *m = _method->as_constant_ptr()->as_metadata();
-  __ set_metadata_constant(m, G5);
-  __ call(Runtime1::entry_for(Runtime1::counter_overflow_id), relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-
-  __ br(Assembler::always, true, Assembler::pt, _continuation);
-  __ delayed()->nop();
-}
-
-
-void DivByZeroStub::emit_code(LIR_Assembler* ce) {
-  if (_offset != -1) {
-    ce->compilation()->implicit_exception_table()->append(_offset, __ offset());
-  }
-  __ bind(_entry);
-  __ call(Runtime1::entry_for(Runtime1::throw_div0_exception_id), relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-#ifdef ASSERT
-  __ should_not_reach_here();
-#endif
-}
-
-
-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);
-  __ call(a, relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-#ifdef ASSERT
-  __ should_not_reach_here();
-#endif
-}
-
-
-// Implementation of SimpleExceptionStub
-// Note: %g1 and %g3 are already in use
-void SimpleExceptionStub::emit_code(LIR_Assembler* ce) {
-  __ bind(_entry);
-  __ call(Runtime1::entry_for(_stub), relocInfo::runtime_call_type);
-
-  if (_obj->is_valid()) {
-    __ delayed()->mov(_obj->as_register(), G4); // _obj contains the optional argument to the stub
-  } else {
-    __ delayed()->mov(G0, G4);
-  }
-  ce->add_call_info_here(_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) {
-  __ bind(_entry);
-  __ call(Runtime1::entry_for(_stub_id), relocInfo::runtime_call_type);
-  __ delayed()->mov_or_nop(_klass_reg->as_register(), G5);
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-  __ br(Assembler::always, false, Assembler::pt, _continuation);
-  __ delayed()->mov_or_nop(O0, _result->as_register());
-}
-
-
-// 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) {
-  __ bind(_entry);
-
-  __ mov(_length->as_register(), G4);
-  __ call(Runtime1::entry_for(Runtime1::new_type_array_id), relocInfo::runtime_call_type);
-  __ delayed()->mov_or_nop(_klass_reg->as_register(), G5);
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-  __ br(Assembler::always, false, Assembler::pt, _continuation);
-  __ delayed()->mov_or_nop(O0, _result->as_register());
-}
-
-
-// Implementation of NewObjectArrayStub
-
-NewObjectArrayStub::NewObjectArrayStub(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 NewObjectArrayStub::emit_code(LIR_Assembler* ce) {
-  __ bind(_entry);
-
-  __ mov(_length->as_register(), G4);
-  __ call(Runtime1::entry_for(Runtime1::new_object_array_id), relocInfo::runtime_call_type);
-  __ delayed()->mov_or_nop(_klass_reg->as_register(), G5);
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-  __ br(Assembler::always, false, Assembler::pt, _continuation);
-  __ delayed()->mov_or_nop(O0, _result->as_register());
-}
-
-
-// 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) {
-  __ bind(_entry);
-  __ mov(_obj_reg->as_register(), G4);
-  if (ce->compilation()->has_fpu_code()) {
-    __ call(Runtime1::entry_for(Runtime1::monitorenter_id), relocInfo::runtime_call_type);
-  } else {
-    __ call(Runtime1::entry_for(Runtime1::monitorenter_nofpu_id), relocInfo::runtime_call_type);
-  }
-  __ delayed()->mov_or_nop(_lock_reg->as_register(), G5);
-  ce->add_call_info_here(_info);
-  ce->verify_oop_map(_info);
-  __ br(Assembler::always, true, Assembler::pt, _continuation);
-  __ delayed()->nop();
-}
-
-
-void MonitorExitStub::emit_code(LIR_Assembler* ce) {
-  __ bind(_entry);
-  if (_compute_lock) {
-    ce->monitor_address(_monitor_ix, _lock_reg);
-  }
-  if (ce->compilation()->has_fpu_code()) {
-    __ call(Runtime1::entry_for(Runtime1::monitorexit_id), relocInfo::runtime_call_type);
-  } else {
-    __ call(Runtime1::entry_for(Runtime1::monitorexit_nofpu_id), relocInfo::runtime_call_type);
-  }
-
-  __ delayed()->mov_or_nop(_lock_reg->as_register(), G4);
-  __ br(Assembler::always, true, Assembler::pt, _continuation);
-  __ delayed()->nop();
-}
-
-// 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 (especially 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* ) {
-  // patch sites on sparc are always properly aligned.
-}
-
-void PatchingStub::emit_code(LIR_Assembler* ce) {
-  // copy original code here
-  assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF,
-         "not enough room for call");
-  assert((_bytes_to_copy & 0x3) == 0, "must copy a multiple of four bytes");
-
-  Label call_patch;
-
-  int being_initialized_entry = __ offset();
-
-  if (_id == load_klass_id) {
-    // produce a copy of the load klass instruction for use by the being initialized case
-#ifdef ASSERT
-    address start = __ pc();
-#endif
-    AddressLiteral addrlit(NULL, metadata_Relocation::spec(_index));
-    __ patchable_set(addrlit, _obj);
-
-#ifdef ASSERT
-    for (int i = 0; i < _bytes_to_copy; i++) {
-      address ptr = (address)(_pc_start + i);
-      int a_byte = (*ptr) & 0xFF;
-      assert(a_byte == *start++, "should be the same code");
-    }
-#endif
-  } else if (_id == load_mirror_id || _id == load_appendix_id) {
-    // produce a copy of the load mirror instruction for use by the being initialized case
-#ifdef ASSERT
-    address start = __ pc();
-#endif
-    AddressLiteral addrlit(NULL, oop_Relocation::spec(_index));
-    __ patchable_set(addrlit, _obj);
-
-#ifdef ASSERT
-    for (int i = 0; i < _bytes_to_copy; i++) {
-      address ptr = (address)(_pc_start + i);
-      int a_byte = (*ptr) & 0xFF;
-      assert(a_byte == *start++, "should be the same code");
-    }
-#endif
-  } else {
-    // make a copy the code which is going to be patched.
-    for (int i = 0; i < _bytes_to_copy; i++) {
-      address ptr = (address)(_pc_start + i);
-      int a_byte = (*ptr) & 0xFF;
-      __ emit_int8 (a_byte);
-    }
-  }
-
-  address end_of_patch = __ pc();
-  int bytes_to_skip = 0;
-  if (_id == load_mirror_id) {
-    int offset = __ offset();
-    if (CommentedAssembly) {
-      __ block_comment(" being_initialized check");
-    }
-
-    // static field accesses have special semantics while the class
-    // initializer is being run so we emit a test which can be used to
-    // check that this code is being executed by the initializing
-    // thread.
-    assert(_obj != noreg, "must be a valid register");
-    assert(_index >= 0, "must have oop index");
-    __ ld_ptr(_obj, java_lang_Class::klass_offset_in_bytes(), G3);
-    __ ld_ptr(G3, in_bytes(InstanceKlass::init_thread_offset()), G3);
-    __ cmp_and_brx_short(G2_thread, G3, Assembler::notEqual, Assembler::pn, call_patch);
-
-    // load_klass patches may execute the patched code before it's
-    // copied back into place so we need to jump back into the main
-    // code of the nmethod to continue execution.
-    __ br(Assembler::always, false, Assembler::pt, _patch_site_continuation);
-    __ delayed()->nop();
-
-    // make sure this extra code gets skipped
-    bytes_to_skip += __ offset() - offset;
-  }
-
-  // Now emit the patch record telling the runtime how to find the
-  // pieces of the patch.  We only need 3 bytes but it has to be
-  // aligned as an instruction so emit 4 bytes.
-  int sizeof_patch_record = 4;
-  bytes_to_skip += sizeof_patch_record;
-
-  // emit the offsets needed to find the code to patch
-  int being_initialized_entry_offset = __ offset() - being_initialized_entry + sizeof_patch_record;
-
-  // Emit the patch record.  We need to emit a full word, so emit an extra empty byte
-  __ emit_int8(0);
-  __ emit_int8(being_initialized_entry_offset);
-  __ emit_int8(bytes_to_skip);
-  __ emit_int8(_bytes_to_copy);
-  address patch_info_pc = __ pc();
-  assert(patch_info_pc - end_of_patch == bytes_to_skip, "incorrect patch info");
-
-  address entry = __ pc();
-  NativeGeneralJump::insert_unconditional((address)_pc_start, entry);
-  address target = NULL;
-  relocInfo::relocType reloc_type = relocInfo::none;
-  switch (_id) {
-    case access_field_id:  target = Runtime1::entry_for(Runtime1::access_field_patching_id); break;
-    case load_klass_id:    target = Runtime1::entry_for(Runtime1::load_klass_patching_id); reloc_type = relocInfo::metadata_type; break;
-    case load_mirror_id:   target = Runtime1::entry_for(Runtime1::load_mirror_patching_id); reloc_type = relocInfo::oop_type; break;
-    case load_appendix_id: target = Runtime1::entry_for(Runtime1::load_appendix_patching_id); reloc_type = relocInfo::oop_type; break;
-    default: ShouldNotReachHere();
-  }
-  __ bind(call_patch);
-
-  if (CommentedAssembly) {
-    __ block_comment("patch entry point");
-  }
-  __ call(target, relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  assert(_patch_info_offset == (patch_info_pc - __ pc()), "must not change");
-  ce->add_call_info_here(_info);
-  __ br(Assembler::always, false, Assembler::pt, _patch_site_entry);
-  __ delayed()->nop();
-  if (_id == load_klass_id || _id == load_mirror_id || _id == load_appendix_id) {
-    CodeSection* cs = __ code_section();
-    address pc = (address)_pc_start;
-    RelocIterator iter(cs, pc, pc + 1);
-    relocInfo::change_reloc_info_for_address(&iter, (address) pc, reloc_type, relocInfo::none);
-
-    pc = (address)(_pc_start + NativeMovConstReg::add_offset);
-    RelocIterator iter2(cs, pc, pc+1);
-    relocInfo::change_reloc_info_for_address(&iter2, (address) pc, reloc_type, relocInfo::none);
-  }
-
-}
-
-
-void DeoptimizeStub::emit_code(LIR_Assembler* ce) {
-  __ bind(_entry);
-  __ set(_trap_request, G4);
-  __ call(Runtime1::entry_for(Runtime1::deoptimize_id), relocInfo::runtime_call_type);
-  __ delayed()->nop();
-  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);
-  __ mov(src()->as_register(),     O0);
-  __ mov(src_pos()->as_register(), O1);
-  __ mov(dst()->as_register(),     O2);
-  __ mov(dst_pos()->as_register(), O3);
-  __ mov(length()->as_register(),  O4);
-
-  ce->emit_static_call_stub();
-  if (ce->compilation()->bailed_out()) {
-    return; // CodeCache is full
-  }
-
-  __ call(SharedRuntime::get_resolve_static_call_stub(), relocInfo::static_call_type);
-  __ delayed()->nop();
-  ce->add_call_info_here(info());
-  ce->verify_oop_map(info());
-
-#ifndef PRODUCT
-  __ set((intptr_t)&Runtime1::_arraycopy_slowcase_cnt, O0);
-  __ ld(O0, 0, O1);
-  __ inc(O1);
-  __ st(O1, 0, O0);
-#endif
-
-  __ br(Assembler::always, false, Assembler::pt, _continuation);
-  __ delayed()->nop();
-}
-
-#undef __