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Unified Diff: src/virtual-frame-inl.h

Issue 660104: Inlining a few virtual frame functions.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 10 months ago
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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(&register_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_
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