In a previous job I helped with the process of compiler validations for
my company's systems. Things might have changed since then, but each
compiler validation was for a specific version of the compiler in a
specific environment: operating system, libraries, assembler, linker,
etc. The process was very expensive and time-consuming.
The GCC project doesn't provide compiler binaries, let alone the
environments in which the compilers are used, so it can't do the
validations. You might talk to the supplier of your system,
particularly if they also provide GCC binaries.
Janis