Changeset 223584 in webkit for trunk/Source/JavaScriptCore/dfg/DFGOperations.cpp

Timestamp:

Oct 17, 2017, 4:34:29 PM (8 years ago)

Author:

Ryan Haddad

Message:

Unreviewed, rolling out r223523.

A test for this change is failing on debug JSC bots.

Reverted changeset:

"[JSC] proto getter should be fast"
​https://bugs.webkit.org/show_bug.cgi?id=178067
​https://trac.webkit.org/changeset/223523

File:

• trunk/Source/JavaScriptCore/dfg/DFGOperations.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/dfg/DFGOperations.cpp

@@ -53 +53 @@
 #include "JSFixedArray.h"
 #include "JSGenericTypedArrayViewConstructorInlines.h"
-#include "JSGlobalObjectFunctions.h"
 #include "JSLexicalEnvironment.h"
 #include "JSMap.h"
@@ -2520 +2519 @@
 }
 
-EncodedJSValue JIT_OPERATION operationGetPrototypeOfObject(ExecState* exec, JSObject* thisObject)
-{
-    VM& vm = exec->vm();
-    NativeCallFrameTracer tracer(&vm, exec);
-    return JSValue::encode(thisObject->getPrototype(vm, exec));
-}
-
-EncodedJSValue JIT_OPERATION operationGetPrototypeOf(ExecState* exec, EncodedJSValue encodedValue)
-{
-    VM& vm = exec->vm();
-    NativeCallFrameTracer tracer(&vm, exec);
-    auto scope = DECLARE_THROW_SCOPE(vm);
-
-    JSValue thisValue = JSValue::decode(encodedValue).toThis(exec, StrictMode);
-    if (thisValue.isUndefinedOrNull())
-        return throwVMError(exec, scope, createNotAnObjectError(exec, thisValue));
-
-    JSObject* thisObject = jsDynamicCast<JSObject*>(vm, thisValue);
-    if (!thisObject) {
-        JSObject* prototype = thisValue.synthesizePrototype(exec);
-        EXCEPTION_ASSERT(!!scope.exception() == !prototype);
-        if (UNLIKELY(!prototype))
-            return JSValue::encode(JSValue());
-        return JSValue::encode(prototype);
-    }
-
-    scope.release();
-    return JSValue::encode(thisObject->getPrototype(vm, exec));
-}
-
 void JIT_OPERATION operationThrowDFG(ExecState* exec, EncodedJSValue valueToThrow)
 {