[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 #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