Changeset 175998 in webkit for trunk/Source/JavaScriptCore/jit/JITOperations.h

Timestamp:

Nov 11, 2014, 6:33:43 PM (11 years ago)

Author:

[email protected]

Message:

Use scope register when processing op_resolve_scope in LLInt and Baseline JIT
​https://bugs.webkit.org/show_bug.cgi?id=138637

Reviewed by Mark Lam.

Filled out op_resolve_scope processing to use the scope operand to access the current
scope chain.

• jit/JIT.h:
• jit/JITInlines.h:

(JSC::JIT::callOperation):

• jit/JITOperations.cpp:
• jit/JITOperations.h:

Added scope virtual register parameter to emitResolveClosure(). Added new callOperation() to
support the additional argument.

• jit/JITPropertyAccess.cpp:

(JSC::JIT::emitResolveClosure):
(JSC::JIT::emit_op_resolve_scope):
(JSC::JIT::emitSlow_op_resolve_scope):

• jit/JITPropertyAccess32_64.cpp:

(JSC::JIT::emitResolveClosure):
(JSC::JIT::emit_op_resolve_scope):
(JSC::JIT::emitSlow_op_resolve_scope):

• llint/LLIntSlowPaths.cpp:

(JSC::LLInt::LLINT_SLOW_PATH_DECL):
Added "scope" parameter to emitResolveClosure(). Passed scope register index to slow path.
Used scope virtual register instead of JSStack::ScopeChain.

File:

• trunk/Source/JavaScriptCore/jit/JITOperations.h (modified) (1 diff)

trunk/Source/JavaScriptCore/jit/JITOperations.h

@@ -311 +311 @@
 char* JIT_OPERATION operationSwitchImmWithUnknownKeyType(ExecState*, EncodedJSValue key, size_t tableIndex) WTF_INTERNAL;
 char* JIT_OPERATION operationSwitchStringWithUnknownKeyType(ExecState*, EncodedJSValue key, size_t tableIndex) WTF_INTERNAL;
-EncodedJSValue JIT_OPERATION operationResolveScope(ExecState*, int32_t identifierIndex) WTF_INTERNAL;
+EncodedJSValue JIT_OPERATION operationResolveScope(ExecState*, int32_t scope, int32_t identifierIndex) WTF_INTERNAL;
 EncodedJSValue JIT_OPERATION operationGetFromScope(ExecState*, Instruction* bytecodePC) WTF_INTERNAL;
 void JIT_OPERATION operationPutToScope(ExecState*, Instruction* bytecodePC) WTF_INTERNAL;