[Webkit-unassigned] [Bug 127827] Enable JIT on Win64 again

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=127827





--- Comment #4 from Michael Saboff <msaboff at apple.com>  2014-01-28 21:49:46 PST ---
The long pole to getting the JIT enabled on Win64 is to add a Windows backend to the offline assembler.  Basically take JavaScriptCore/offlineasm/x86.rb, copy it to say x86-win.rb.  Then change the operand order for the opcodes and then add a windows versions of the inline assembly macros at the end of JavaScriptCore/llint/LowLevelInterpreter.cpp.   There are some calling convention differences that need to be factored into the LowLevelInterpreter*.asm files as well.

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