blob: ff5b5a573262947a9fea866fb3d5fd9aa653d48e [file] [log] [blame]
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/common/globals.h"
#include "src/flags/flags.h"
namespace v8 {
namespace internal {
namespace compiler {
// The nci flag is currently used to experiment with feedback collection in
// optimized code produced by generic lowering.
// Considerations:
// - Should we increment the call count?
// - Is feedback already megamorphic in all these cases?
// TODO(jgruber): Remove once we've made a decision whether to collect feedback
// unconditionally.
inline bool CollectFeedbackInGenericLowering() {
return FLAG_turbo_collect_feedback_in_generic_lowering;
enum class StackCheckKind {
kJSFunctionEntry = 0,
inline std::ostream& operator<<(std::ostream& os, StackCheckKind kind) {
switch (kind) {
case StackCheckKind::kJSFunctionEntry:
return os << "JSFunctionEntry";
case StackCheckKind::kJSIterationBody:
return os << "JSIterationBody";
case StackCheckKind::kCodeStubAssembler:
return os << "CodeStubAssembler";
case StackCheckKind::kWasm:
return os << "Wasm";
inline size_t hash_value(StackCheckKind kind) {
return static_cast<size_t>(kind);
// The CallFeedbackRelation states whether the target feedback stored with a
// JSCall is related to the call. If, during lowering, a JSCall (e.g. of a
// higher order function) is replaced by a JSCall with another target, the
// feedback has to be kept but is now unrelated.
enum class CallFeedbackRelation { kRelated, kUnrelated };
inline std::ostream& operator<<(std::ostream& os,
CallFeedbackRelation call_feedback_relation) {
switch (call_feedback_relation) {
case CallFeedbackRelation::kRelated:
return os << "CallFeedbackRelation::kRelated";
case CallFeedbackRelation::kUnrelated:
return os << "CallFeedbackRelation::kUnrelated";
return os;
} // namespace compiler
} // namespace internal
} // namespace v8
// Support for floating point parameters in calls to C.
// It's currently enabled only for the platforms listed below. We don't plan
// to add support for IA32, because it has a totally different approach
// (using FP stack). As support is added to more platforms, please make sure
// to list them here in order to enable tests of this functionality.
#if defined(V8_TARGET_ARCH_X64)