What steps will reproduce the problem? Just call google::Demangle with input string: _Z18hls_findHorizontalPi8ap_fixedILi16ELi1EL9ap_q_mode5EL9ap_o_mode3ELi0EES3_PA640_10ThreadPeak, and it returns false

What is the expected output? What do you see instead? Should return true with demangled string: hls_findHorizontal

What version of the product are you using? On what operating system? Latest version, all OS