| Index: src/virtual-frame-inl.h
|
| ===================================================================
|
| --- src/virtual-frame-inl.h (revision 0)
|
| +++ src/virtual-frame-inl.h (revision 0)
|
| @@ -0,0 +1,109 @@
|
| +// Copyright 2008 the V8 project authors. All rights reserved.
|
| +// Redistribution and use in source and binary forms, with or without
|
| +// modification, are permitted provided that the following conditions are
|
| +// met:
|
| +//
|
| +// * Redistributions of source code must retain the above copyright
|
| +// notice, this list of conditions and the following disclaimer.
|
| +// * Redistributions in binary form must reproduce the above
|
| +// copyright notice, this list of conditions and the following
|
| +// disclaimer in the documentation and/or other materials provided
|
| +// with the distribution.
|
| +// * Neither the name of Google Inc. nor the names of its
|
| +// contributors may be used to endorse or promote products derived
|
| +// from this software without specific prior written permission.
|
| +//
|
| +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
| +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
| +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
| +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| +
|
| +#ifndef V8_VIRTUAL_FRAME_INL_H_
|
| +#define V8_VIRTUAL_FRAME_INL_H_
|
| +
|
| +#include "virtual-frame.h"
|
| +
|
| +namespace v8 {
|
| +namespace internal {
|
| +
|
| +// When cloned, a frame is a deep copy of the original.
|
| +VirtualFrame::VirtualFrame(VirtualFrame* original)
|
| + : elements_(original->element_count()),
|
| + stack_pointer_(original->stack_pointer_) {
|
| + elements_.AddAll(original->elements_);
|
| + // Copy register locations from original.
|
| + memcpy(®ister_locations_,
|
| + original->register_locations_,
|
| + sizeof(register_locations_));
|
| +}
|
| +
|
| +
|
| +void VirtualFrame::PushFrameSlotAt(int index) {
|
| + elements_.Add(CopyElementAt(index));
|
| +}
|
| +
|
| +
|
| +void VirtualFrame::Push(Register reg, NumberInfo::Type info) {
|
| + if (is_used(reg)) {
|
| + int index = register_location(reg);
|
| + FrameElement element = CopyElementAt(index, info);
|
| + elements_.Add(element);
|
| + } else {
|
| + Use(reg, element_count());
|
| + FrameElement element =
|
| + FrameElement::RegisterElement(reg, FrameElement::NOT_SYNCED, info);
|
| + elements_.Add(element);
|
| + }
|
| +}
|
| +
|
| +
|
| +void VirtualFrame::Push(Handle<Object> value) {
|
| + FrameElement element =
|
| + FrameElement::ConstantElement(value, FrameElement::NOT_SYNCED);
|
| + elements_.Add(element);
|
| +}
|
| +
|
| +
|
| +void VirtualFrame::Push(Smi* value) {
|
| + Push(Handle<Object> (value));
|
| +}
|
| +
|
| +
|
| +void VirtualFrame::Nip(int num_dropped) {
|
| + ASSERT(num_dropped >= 0);
|
| + if (num_dropped == 0) return;
|
| + Result tos = Pop();
|
| + if (num_dropped > 1) {
|
| + Drop(num_dropped - 1);
|
| + }
|
| + SetElementAt(0, &tos);
|
| +}
|
| +
|
| +
|
| +bool VirtualFrame::Equals(VirtualFrame* other) {
|
| +#ifdef DEBUG
|
| + for (int i = 0; i < RegisterAllocator::kNumRegisters; i++) {
|
| + if (register_location(i) != other->register_location(i)) {
|
| + return false;
|
| + }
|
| + }
|
| + if (element_count() != other->element_count()) return false;
|
| +#endif
|
| + if (stack_pointer_ != other->stack_pointer_) return false;
|
| + for (int i = 0; i < element_count(); i++) {
|
| + if (!elements_[i].Equals(other->elements_[i])) return false;
|
| + }
|
| +
|
| + return true;
|
| +}
|
| +
|
| +} } // namespace v8::internal
|
| +
|
| +#endif // V8_VIRTUAL_FRAME_INL_H_
|
|
|