[Bug c/94444] New: __attribute__((access(...))) ignored for memcpy when compiling with -Os

[felix-gcc at fefe dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94444

            Bug ID: 94444
           Summary: __attribute__((access(...))) ignored for memcpy when
                    compiling with -Os
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: felix-gcc at fefe dot de
  Target Milestone: ---

I read about the access attribute and proceeded to add the annotations to the
string.h of my little libc. It works. But it stops working when I compile with
-Os.

I suspect it's because gcc is switching to __buildin_memcpy then?