iposva@google.com
dd800b6870
add the entries into the store buffer. - Add a way to preserve and restore caller saved registers. - Clean up the implementation of the stub for Assembler::Stop. Review URL: https://chromiumcodereview.appspot.com//10758008 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9490 260f80e4-7a28-3924-810f-c04153c831b5
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/store_buffer.h"
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#include "platform/assert.h"
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#include "vm/runtime_entry.h"
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namespace dart {
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DEFINE_LEAF_RUNTIME_ENTRY(void, StoreBufferBlockProcess, Isolate* isolate) {
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isolate->store_buffer_block()->ProcessBuffer(isolate);
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}
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END_LEAF_RUNTIME_ENTRY
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void StoreBufferBlock::ProcessBuffer() {
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ProcessBuffer(Isolate::Current());
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}
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void StoreBufferBlock::ProcessBuffer(Isolate* isolate) {
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StoreBuffer* buffer = isolate->store_buffer();
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int32_t end = top_;
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for (int32_t i = 0; i < end; i++) {
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buffer->AddPointer(pointers_[i]);
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}
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top_ = 0; // Reset back to the beginning.
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}
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bool StoreBufferBlock::Contains(uword pointer) {
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for (int32_t i = 0; i < top_; i++) {
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if (pointers_[i] == pointer) {
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return true;
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}
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}
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return false;
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}
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StoreBuffer::~StoreBuffer() {
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DedupSet* current = dedup_sets_;
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dedup_sets_ = NULL;
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while (current != NULL) {
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DedupSet* next = current->next_;
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delete current;
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current = next;
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}
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}
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void StoreBuffer::AddPointer(uword address) {
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ASSERT(dedup_sets_ != NULL);
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if (!dedup_sets_->set_->Add(address)) {
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// TODO(iposva): Limit growth of deduplication sets until the rest of the
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// mechanism is hooked up.
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delete dedup_sets_;
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dedup_sets_ = NULL;
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DedupSet* fresh_element = new DedupSet();
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fresh_element->next_ = dedup_sets_;
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dedup_sets_ = fresh_element;
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}
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}
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} // namespace dart
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