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


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

--- Comment #7 from Kostya Serebryany <kcc at gcc dot gnu.org> 2013-02-05 09:43:11 UTC ---
If we are talking about compile time, I observe 2x difference in favor of
clang: 
building 483.xalancbmk
gcc+asan+O2:   564 seconds
clang+asan+O2: 243 second

gcc is built with default options
clang is built with -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON


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