GCC address sanitizer - supported architecture

[Qingnan Duan]

Hi everyone,
I was looking at this page Instrumentation Options (Using the GNU Compiler Collection (GCC))<https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html> and it says "-fsanitize=address" is only supported on AArch64. However, I was able to compile my code on x86-64 CPU with -fsanitize=address flag.

Is the document out-of-date? Or, does it mean the result of ASan is not guaranteed on any platform other than AArch64?
Thanks in advance for your help!

Best regards,
Qingnan Duan