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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#ifndef jit_JitHints_inl_h
#define jit_JitHints_inl_h
#include "jit/JitHints.h"
#include "mozilla/HashFunctions.h"
namespace js::jit {
inline JitHintsMap::ScriptKey JitHintsMap::getScriptKey(
JSScript* script) const {
ScriptKey filenameHash = script->filenameHash();
// Do not include scrips that have an introducer filename. These include
// dynamically created scripts such as eval() and new Function() which
// have a high probability of containing difference source.
if (filenameHash && !script->scriptSource()->hasIntroducerFilename()) {
return mozilla::AddToHash(filenameHash, script->sourceStart());
}
return 0;
}
inline void JitHintsMap::incrementBaselineEntryCount() {
// Clear the cache if we've exceeded the false positivity rate
// calculated by MaxEntries.
if (++baselineEntryCount_ > MaxEntries_) {
baselineHintMap_.clear();
baselineEntryCount_ = 0;
}
}
inline void JitHintsMap::setEagerBaselineHint(JSScript* script) {
ScriptKey key = getScriptKey(script);
if (!key) {
return;
}
// If the entry already exists, don't increment entryCount.
if (baselineHintMap_.mightContain(key)) {
return;
}
// Increment entry count, and possibly clear the cache.
incrementBaselineEntryCount();
script->setNoEagerBaselineHint(false);
baselineHintMap_.add(key);
}
inline bool JitHintsMap::mightHaveEagerBaselineHint(JSScript* script) const {
if (ScriptKey key = getScriptKey(script)) {
return baselineHintMap_.mightContain(key);
}
script->setNoEagerBaselineHint(true);
return false;
}
} // namespace js::jit
#endif /* jit_JitHints_inl_h */