Changeset 37213 in webkit for trunk/JavaScriptCore/kjs

Timestamp:

Oct 2, 2008, 3:19:05 PM (17 years ago)

Author:

[email protected]

Message:

2008-10-02 Cameron Zwarich <​[email protected]>

Reviewed by Geoff Garen.

Bug 21317: Replace RegisterFile size and capacity information with Register pointers
<​https://bugs.webkit.org/show_bug.cgi?id=21317>

This is a 2.3% speedup on the V8 DeltaBlue benchmark, a 3.3% speedup on
the V8 Raytrace benchmark, and a 1.0% speedup on SunSpider.

• VM/Machine.cpp: (JSC::slideRegisterWindowForCall): (JSC::Machine::callEval): (JSC::Machine::execute): (JSC::Machine::privateExecute): (JSC::Machine::cti_op_call_JSFunction): (JSC::Machine::cti_op_construct_JSConstruct):
• VM/RegisterFile.cpp: (JSC::RegisterFile::~RegisterFile):
• VM/RegisterFile.h: (JSC::RegisterFile::RegisterFile): (JSC::RegisterFile::start): (JSC::RegisterFile::end): (JSC::RegisterFile::size): (JSC::RegisterFile::shrink): (JSC::RegisterFile::grow): (JSC::RegisterFile::lastGlobal): (JSC::RegisterFile::markGlobals): (JSC::RegisterFile::markCallFrames):
• kjs/JSGlobalObject.cpp: (JSC::JSGlobalObject::copyGlobalsTo):

File:

• trunk/JavaScriptCore/kjs/JSGlobalObject.cpp (modified) (1 diff)

trunk/JavaScriptCore/kjs/JSGlobalObject.cpp

@@ -441 +441 @@
 
     if (d()->registerArray) {
-        memcpy(registerFile.base() - d()->registerArraySize, d()->registerArray.get(), d()->registerArraySize * sizeof(Register));
-        setRegisters(registerFile.base(), 0, 0);
+        memcpy(registerFile.start() - d()->registerArraySize, d()->registerArray.get(), d()->registerArraySize * sizeof(Register));
+        setRegisters(registerFile.start(), 0, 0);
     }
 }