Unaligned userspace access for SH4 platforms

Unaligned userspace access for SH4 platforms
https://bugs.webkit.org/show_bug.cgi?id=79104

Patch by Thouraya ANDOLSI <thouraya.andolsi@st.com> on 2012-03-26
Reviewed by Gavin Barraclough.

* assembler/AbstractMacroAssembler.h:
(Jump):
(JSC::AbstractMacroAssembler::Jump::Jump):
(JSC::AbstractMacroAssembler::Jump::link):
* assembler/MacroAssemblerSH4.h:
(JSC::MacroAssemblerSH4::load16Unaligned):
(JSC::MacroAssemblerSH4::load32WithUnalignedHalfWords):
(JSC::MacroAssemblerSH4::branchDouble):
(JSC::MacroAssemblerSH4::branchTrue):
(JSC::MacroAssemblerSH4::branchFalse):
* assembler/SH4Assembler.h:
(JSC::SH4Assembler::extraInstrForBranch):
(SH4Assembler):
(JSC::SH4Assembler::bra):
(JSC::SH4Assembler::linkJump):
* jit/JIT.h:
(JIT):
* yarr/YarrJIT.cpp:
(JSC::Yarr::YarrGenerator::generatePatternCharacterOnce):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@112192 268f45cc-cd09-0410-ab3c-d52691b4dbfc