Changeset 52231 in webkit for trunk/JavaScriptCore/bytecode

Timestamp:

Dec 16, 2009, 7:50:37 PM (15 years ago)

Author:

[email protected]

Message:

Fixed <rdar://problem/7355025> Interpreter::privateExecute macro generates
bloated code

Reviewed by Oliver Hunt.

This patch cuts Interpreter stack use by about a third.

• bytecode/Opcode.h: Changed Opcode to const void* to work with the

const static initiliazation we want to do in Interpreter::privateExecute.

• interpreter/Interpreter.cpp:

(JSC::Interpreter::Interpreter): Moved hashtable initialization here to
avoid polluting Interpreter::privateExecute's stack, and changed it from a
series of add() calls to one add() call in a loop, to cut down on code size.

(JSC::Interpreter::privateExecute): Changed a series of label computations
to a copy of a compile-time constant array to cut down on code size.

File:

• trunk/JavaScriptCore/bytecode/Opcode.h (modified) (1 diff)

trunk/JavaScriptCore/bytecode/Opcode.h

@@ -197 +197 @@
 
 #if HAVE(COMPUTED_GOTO)
-    typedef void* Opcode;
+    typedef const void* Opcode;
 #else
     typedef OpcodeID Opcode;