jdk

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/*
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 * Copyright (c) 2022, 2023, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "asm/codeBuffer.hpp"
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#include "code/codeBlob.hpp"
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#include "opto/c2_CodeStubs.hpp"
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#include "opto/c2_MacroAssembler.hpp"
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#include "opto/compile.hpp"
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#include "opto/output.hpp"
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C2CodeStubList::C2CodeStubList() :
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  _stubs(Compile::current()->comp_arena(), 2, 0, nullptr) {}
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void C2CodeStubList::emit(C2_MacroAssembler& masm) {
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  for (int i = _stubs.length() - 1; i >= 0; i--) {
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    C2CodeStub* stub = _stubs.at(i);
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    int max_size = stub->max_size();
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    // Make sure there is enough space in the code buffer
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    if (masm.code()->insts()->maybe_expand_to_ensure_remaining(max_size) && masm.code()->blob() == nullptr) {
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      ciEnv::current()->record_failure("CodeCache is full");
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      return;
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    }
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    DEBUG_ONLY(int size_before = masm.offset();)
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    stub->emit(masm);
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    DEBUG_ONLY(int actual_size = masm.offset() - size_before;)
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    assert(max_size >= actual_size, "Expected stub size (%d) must be larger than or equal to actual stub size (%d)", max_size, actual_size);
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  }
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}
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// move here to avoid circular dependency between c2_CodeStubs.hpp and output.hpp
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void C2CodeStub::add_to_stub_list() {
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  if (!Compile::current()->output()->in_scratch_emit_size()) {
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    Compile::current()->output()->add_stub(this);
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  }
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}
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