[Bug sanitizer/55309] gcc's address-sanitizer 66% slower than clang's

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55309



--- Comment #37 from Kostya Serebryany <kcc at gcc dot gnu.org> 2013-02-12 
11:17:45 UTC ---

http://llvm.org/viewvc/llvm-project?rev=174957&view=rev (and r174958)

change the default offset for x86_64 to 7fff8000

and changes __asan_init to __asan_init_v1