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| author | Andreas Kling <kling@serenityos.org> | 2021-10-24 15:36:24 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-10-24 17:18:07 +0200 |
| commit | 715e7fada8ed00a7680bb8f4ed65afd3026d3d59 (patch) | |
| tree | 16128a8cac827905f38d2f20f2bf8589f9525a59 /Userland/Libraries/LibJS/Bytecode/Op.h | |
| parent | da9821200113dc1edd59ffb5531c573e963a2ae4 (diff) | |
| download | serenity-715e7fada8ed00a7680bb8f4ed65afd3026d3d59.zip | |
LibJS: Add the "fast non-local access" optimization to the bytecode VM
The GetVariable bytecode op now caches environment coordinates for fast
cross-scope variable lookup.
Diffstat (limited to 'Userland/Libraries/LibJS/Bytecode/Op.h')
| -rw-r--r-- | Userland/Libraries/LibJS/Bytecode/Op.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Userland/Libraries/LibJS/Bytecode/Op.h b/Userland/Libraries/LibJS/Bytecode/Op.h index 697da20715..7043f6617c 100644 --- a/Userland/Libraries/LibJS/Bytecode/Op.h +++ b/Userland/Libraries/LibJS/Bytecode/Op.h @@ -16,6 +16,7 @@ #include <LibJS/Bytecode/StringTable.h> #include <LibJS/Heap/Cell.h> #include <LibJS/Runtime/Environment.h> +#include <LibJS/Runtime/EnvironmentCoordinate.h> #include <LibJS/Runtime/Value.h> namespace JS::Bytecode::Op { @@ -310,6 +311,8 @@ public: private: IdentifierTableIndex m_identifier; + + Optional<EnvironmentCoordinate> mutable m_cached_environment_coordinate; }; class GetById final : public Instruction { |