[Bug target/102306] Volatile pointer dereferenced twice

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102306

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |sparc-elf
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |wrong-code
          Component|rtl-optimization            |target
   Last reconfirmed|                            |2021-09-13
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I would think it's sparc specific for now.  Confirmed with simplified

void c(void);
void test(volatile unsigned char * a) 
{ 
  char b = *a;
  if (!b)
    return;
  if (b & 2)
    c();
}