Implement JIT on Windows 64 bits

https://bugs.webkit.org/show_bug.cgi?id=107965

Reviewed by Simon Hausmann.

Source/JavaScriptCore:

1. MSVC doesn't support inline assembly for 64 bits, implements the trampoline in a separate ASM file.

2. Windows 64 bits has a different calling convention than other OSes following the AMD64 ABI.
Differences that we have to handle here:
- Registers passed parameters are RCX, RDX, R8 and R9 instead of RDI, RSI, RDX, RCX, R8 and R9
- RDI and RSI must be preserved by callee
- Only return values <= 8 bytes can be returned by register (RDX can't be used to return a second word)
- There is no red-zone after RIP on the stack, but instead 4 reserved words before it

* Target.pri:
* jit/JITStubs.cpp:
* jit/JITStubs.h:
(JSC):
(JITStackFrame):
(JSC::JITStackFrame::returnAddressSlot):
* jit/JITStubsMSVC64.asm: Added.
* jit/JSInterfaceJIT.h:
(JSInterfaceJIT):
* jit/ThunkGenerators.cpp:
(JSC::nativeForGenerator):
* yarr/YarrJIT.cpp:
(YarrGenerator):
(JSC::Yarr::YarrGenerator::generateEnter):
(JSC::Yarr::YarrGenerator::generateReturn):

Source/WTF:

* wtf/Platform.h:

Change-Id: Ie1910350e36defcd427a95ceb9aa280fa61083e7
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144043 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>

0 files changed, 0 insertions, 0 deletions