[Webkit-unassigned] [Bug 71373] Enable the DFG JIT on x86-64 Linux platforms

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71373





--- Comment #18 from Zoltan Herczeg <zherczeg at webkit.org>  2011-11-09 03:51:23 PST ---
(From update of attachment 114235)
View in context: https://bugs.webkit.org/attachment.cgi?id=114235&action=review

> Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:-734
> -        MacroAssembler::Jump tooBig = m_jit.branch32(MacroAssembler::GreaterThan, scratchReg, TrustedImm32(0xff));

I think this call is unnecessary.
1) The previous check <=, so the it is always >
2) The following code would be dead code.
I think that it is working on x86 is a pure luck, since "jmp 0" jumps to the next instruction after the "jmp".

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