Changeset 42574 in webkit for trunk/JavaScriptCore/bytecompiler/BytecodeGenerator.h

Timestamp:

Apr 16, 2009, 4:36:07 AM (16 years ago)

Author:

[email protected]

Message:

Improve performance of read-write-modify operators

Reviewed by Gavin Barraclough

Implement cross scope optimisation for read-write-modify
operators, to avoid unnecessary calls to property resolve
helper functions.

File:

• trunk/JavaScriptCore/bytecompiler/BytecodeGenerator.h (modified) (2 diffs)

trunk/JavaScriptCore/bytecompiler/BytecodeGenerator.h

@@ -244 +244 @@
         RegisterID* emitUnexpectedLoad(RegisterID* dst, bool);
         RegisterID* emitUnexpectedLoad(RegisterID* dst, double);
+        RegisterID* emitLoadGlobalObject(RegisterID* dst, JSObject* globalObject);
 
         RegisterID* emitUnaryOp(OpcodeID, RegisterID* dst, RegisterID* src);
@@ -462 +463 @@
         int m_nextParameterIndex;
         int m_nextConstantIndex;
+        unsigned m_globalConstantIndex;
 
         int m_globalVarStorageOffset;