Add state to track the individual elements of the virtual frame....

src/virtual-frame-ia32-inl.h

-// 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_IA32_INL_H_
-#define V8_VIRTUAL_FRAME_IA32_INL_H_
-
-namespace v8 { namespace internal {
-
-
-// -------------------------------------------------------------------------
-// VirtualFrame inline functions.
-
-#define __ masm_->
-
-void VirtualFrame::PushTryHandler(HandlerType type) {
-  // Grow the expression stack by handler size less two (the return address
-  // is already pushed by a call instruction, and PushTryHandler from the
-  // macro assembler will leave the top of stack in the eax register to be
-  // pushed separately).
-  height_ += (kHandlerSize - 2);
-  __ PushTryHandler(IN_JAVASCRIPT, type);
-  // TODO(1222589): remove the reliance of PushTryHandler on a cached TOS
-  Push(eax);
-}
-
-
-void VirtualFrame::CallStub(CodeStub* stub, int frame_arg_count) {
-  ASSERT(frame_arg_count >= 0);
-  ASSERT(height_ >= frame_arg_count);
-  height_ -= frame_arg_count;
-  __ CallStub(stub);
-}
-
-
-void VirtualFrame::CallRuntime(Runtime::Function* f, int frame_arg_count) {
-  ASSERT(frame_arg_count >= 0);
-  ASSERT(height_ >= frame_arg_count);
-  height_ -= frame_arg_count;
-  __ CallRuntime(f, frame_arg_count);
-}
-
-
-void VirtualFrame::CallRuntime(Runtime::FunctionId id, int frame_arg_count) {
-  ASSERT(frame_arg_count >= 0);
-  ASSERT(height_ >= frame_arg_count);
-  height_ -= frame_arg_count;
-  __ CallRuntime(id, frame_arg_count);
-}
-
-
-void VirtualFrame::InvokeBuiltin(Builtins::JavaScript id,
-                                 InvokeFlag flag,
-                                 int frame_arg_count) {
-  ASSERT(frame_arg_count >= 0);
-  ASSERT(height_ >= frame_arg_count);
-  height_ -= frame_arg_count;
-  __ InvokeBuiltin(id, flag);
-}
-
-
-void VirtualFrame::CallCode(Handle<Code> code,
-                            RelocInfo::Mode rmode,
-                            int frame_arg_count) {
-  ASSERT(frame_arg_count >= 0);
-  ASSERT(height_ >= frame_arg_count);
-  height_ -= frame_arg_count;
-  __ call(code, rmode);
-}
-
-
-void VirtualFrame::Drop(int count) {
-  ASSERT(count >= 0);
-  ASSERT(height_ >= count);
-  if (count > 0) {
-    __ add(Operand(esp), Immediate(count * kPointerSize));
-    height_ -= count;
-  }
-}
-
-
-void VirtualFrame::Pop() {
-  ASSERT(height_ > 0);
-  __ add(Operand(esp), Immediate(kPointerSize));
-  height_--;
-}
-
-
-void VirtualFrame::Pop(Register reg) {
-  ASSERT(height_ > 0);
-  __ pop(reg);
-  height_--;
-}
-
-
-void VirtualFrame::Pop(Operand operand) {
-  ASSERT(height_ > 0);
-  __ pop(operand);
-  height_--;
-}
-
-
-void VirtualFrame::Push(Register reg) {
-  height_++;
-  __ push(reg);
-}
-
-
-void VirtualFrame::Push(Operand operand) {
-  height_++;
-  __ push(operand);
-}
-
-
-void VirtualFrame::Push(Immediate immediate) {
-  height_++;
-  __ push(immediate);
-}
-
-#undef __
-
-} }  // namespace v8::internal
-
-#endif  // V8_VIRTUAL_FRAME_IA32_INL_H_