Changeset 55185 in webkit for trunk/JavaScriptCore/runtime/GetterSetter.h

Timestamp:

Feb 24, 2010, 1:02:40 AM (15 years ago)

Author:

[email protected]

Message:

2010-02-24 Oliver Hunt <​[email protected]>

Reviewed by Gavin Barraclough.

Speed up getter performance in the jit
​https://bugs.webkit.org/show_bug.cgi?id=35332

Implement getter lookup caching in the interpreter.
The getter stubs are generated through basically the
same code paths as the normal get_by_id caching.
Instead of simply loading a property and returning,
we load the getter slot, and pass the getter, base value
and return address to a shared stub used for getter
dispatch.

• jit/JIT.h: (JSC::JIT::compileGetByIdProto): (JSC::JIT::compileGetByIdSelfList): (JSC::JIT::compileGetByIdProtoList): (JSC::JIT::compileGetByIdChainList): (JSC::JIT::compileGetByIdChain):
• jit/JITPropertyAccess.cpp: (JSC::JIT::privateCompileGetByIdProto): (JSC::JIT::privateCompileGetByIdSelfList): (JSC::JIT::privateCompileGetByIdProtoList): (JSC::JIT::privateCompileGetByIdChainList): (JSC::JIT::privateCompileGetByIdChain):
• jit/JITPropertyAccess32_64.cpp: (JSC::JIT::privateCompileGetByIdProto): (JSC::JIT::privateCompileGetByIdSelfList): (JSC::JIT::privateCompileGetByIdProtoList): (JSC::JIT::privateCompileGetByIdChainList): (JSC::JIT::privateCompileGetByIdChain):
• jit/JITStubs.cpp: (JSC::JITThunks::tryCacheGetByID): (JSC::DEFINE_STUB_FUNCTION):
• jit/JITStubs.h: (JSC::):
• runtime/GetterSetter.h:

File:

• trunk/JavaScriptCore/runtime/GetterSetter.h (modified) (1 diff)

trunk/JavaScriptCore/runtime/GetterSetter.h

@@ -35 +35 @@
     // for a property.
     class GetterSetter : public JSCell {
+        friend class JIT;
     public:
         GetterSetter(ExecState* exec)