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rdar://problem/7195704mrowe@apple.com authored
<rdar://problem/7195704> JavaScriptCore fails to mark registers when built for x86_64 using LLVM GCC. Reviewed by Gavin Barraclough. * runtime/Collector.cpp: (JSC::Heap::markCurrentThreadConservatively): Force jmp_buf to use the appropriate alignment for a pointer to ensure that we correctly interpret the contents of registers during marking. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@48854 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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