c6414dacdd
This reverts commit 87f71769c5.
Reason for revert: Performance regressions https://chromeperf.appspot.com/group_report?rev=46185
Original change's description:
> [ignition] Merge bytecode array builder and writer
>
> Move bytecode array writing logic into the array builder, allowing us to
> remove the bytecode array writer and bytecode node, and convert runtime
> operand writing to compile-time bytecode operand writing using the
> information statically known at compile time.
>
> Bug: v8:6474
> Change-Id: I210cd9897fd41293745614e4a253c7c251dfffc9
> Reviewed-on: https://chromium-review.googlesource.com/533055
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46183}
TBR=rmcilroy@chromium.org,leszeks@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:6474
Bug: chromium:736646
Change-Id: I00287b2bbbb8efa5a3141bc9c2906f91a7d33e51
Reviewed-on: https://chromium-review.googlesource.com/549319
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46235}
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/interpreter/bytecode-node.h"
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#include <iomanip>
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#include "src/source-position-table.h"
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namespace v8 {
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namespace internal {
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namespace interpreter {
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void BytecodeNode::Print(std::ostream& os) const {
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#ifdef DEBUG
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std::ios saved_state(nullptr);
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saved_state.copyfmt(os);
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os << Bytecodes::ToString(bytecode_);
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for (int i = 0; i < operand_count(); ++i) {
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os << ' ' << std::setw(8) << std::setfill('0') << std::hex << operands_[i];
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}
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os.copyfmt(saved_state);
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if (source_info_.is_valid()) {
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os << ' ' << source_info_;
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}
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os << '\n';
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#else
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os << static_cast<const void*>(this);
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#endif // DEBUG
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}
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bool BytecodeNode::operator==(const BytecodeNode& other) const {
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if (this == &other) {
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return true;
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} else if (this->bytecode() != other.bytecode() ||
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this->source_info() != other.source_info()) {
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return false;
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} else {
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for (int i = 0; i < this->operand_count(); ++i) {
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if (this->operand(i) != other.operand(i)) {
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return false;
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}
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}
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}
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return true;
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}
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std::ostream& operator<<(std::ostream& os, const BytecodeNode& node) {
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node.Print(os);
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return os;
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}
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} // namespace interpreter
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} // namespace internal
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} // namespace v8
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