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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit/JitHints-inl.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit/JitHints-inl.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/js/src/jit/JitHints-inl.h b/js/src/jit/JitHints-inl.h new file mode 100644 index 0000000000..6316af936e --- /dev/null +++ b/js/src/jit/JitHints-inl.h @@ -0,0 +1,60 @@ +/* -*- 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#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 { + if (ScriptKey key = script->filenameHash()) { + return mozilla::AddToHash(key, script->sourceStart()); + } + return 0; +} + +inline void JitHintsMap::incrementEntryCount() { + // Clear the cache if we've exceeded the false positivity rate + // calculated by MaxEntries. + if (++entryCount_ > MaxEntries_) { + map_.clear(); + entryCount_ = 0; + } +} + +inline void JitHintsMap::setEagerBaselineHint(JSScript* script) { + ScriptKey key = getScriptKey(script); + if (!key) { + return; + } + + // If the entry already exists, don't increment entryCount. + if (map_.mightContain(key)) { + return; + } + + // Increment entry count, and possibly clear the cache. + incrementEntryCount(); + + script->setNoEagerBaselineHint(false); + map_.add(key); +} + +inline bool JitHintsMap::mightHaveEagerBaselineHint(JSScript* script) const { + if (ScriptKey key = getScriptKey(script)) { + return map_.mightContain(key); + } + script->setNoEagerBaselineHint(true); + return false; +} + +} // namespace js::jit + +#endif /* jit_JitHints_inl_h */ |