The tracking issue for this feature is: #70401.
-Z src-hash-algorithm compiler flag controls which algorithm is used when hashing each source file. The hash is stored in the debug info and can be used by a debugger to verify the source code matches the executable.
Supported hash algorithms are:
sha256. Note that not all hash algorithms are supported by all debug info formats.
By default, the compiler chooses the hash algorithm based on the target specification.